Datasets:
mlfoundations-dev
/
security_1000000_samples

Dataset card Data Studio Files
xet
 Community
instruction
stringlengths
24
29.9k
What's some good advice on eliminating collisions when hashing things? I need a unique identifier for all my users, but I want them to be private. I'm thinking of using ODIN-1 (https://code.google.com/p/odinmobile/wiki/ODIN1), a sha1 of different device-specific identifiers; MAC for iOS, AndroidID for Android and Devic...
We have developed a search engine (simple search, no login required) where users can search details in the database (Apache Lucene) by entering their name (et. al.), then clicking the search button. The search invokes a asynchronous HTTP GET request (an AJAX call on the same domain) to the server which in turn calls th...
Google Chrome doesn't do typical CRL/OSCP checks, instead it depends on CRLsets. In simple terms, Google scoops up the CRLs from most CAs, trims them down and delivers the CRLset to the browser via the update mechanism. They claim this is more secure, but it only seems to artificially speed up the browser. Soft Fail M...
Background: I am currently trying to crack a salted md5 hash which I have recovered from an embedded device running busybox and manufactured in china. I have tried john the ripper using all of the wordlists I could find in Kali. I have tried cloudcracker and that returned no results. I am currently brute-forcing on a m...
I have been following this very useful post by Thomas. My use case is slightly different. I am developing a mobile application which requires some sensitive data to be stored on the device in a SQLite File. I am using SQLCipher for encrypting the file. The encryption key is based on a 10 character long(at least one upp...
We use a well-known service provider/API management gateway that sits in front of our RESTful APIs providing key management functionality etc. etc. The service provider was running the dodgy OpenSSL version. None of our web services have SSL enabled, though we use API keys to throttle API access, measure usage. Traffic...
me for learning SQLI. But I got stuck at this one regex which seems to be unbreakable : document.loginForm.username.value = document.loginForm.username.value.replace(/[^a-zA-Z0-9]/g, ""); If someone could give me any hint to this one? :) Thanks
BlueStacks is an android simulator for desktop. After installation it will ask you to login with your Google account to download and install android app from play-store. My question is "Is it safe to sign in to Google account with password from a desktop app"?
I am designing an authorization framework and now I am thinking about the error codes which I should return when someone is trying to access a resource and he doesn't have the required permissions. These are my thoughts so far: case: The user is not authenticated, he is seen as "anonymous" -> Here I think 401 would be...
I'm developing an application (C#) for Microsoft SharePoint platform that uses SQL Server's (2008 R2) Remote BLOB Storage (RBS) technology. To accomplish certain client-side tasks, I must obtain username/password pair from the database and pass it to a constructor that looks like this (MSDN): public BlobStoreCredential...
I need to login desktop application while autostart on server (like skype does). What is the best practice to save authentication token (password)? Should I use something like RSA encryption (which typically used for .config connectionstrings encryption in ASP.NET applications)?
I am using a Proxy for example UltraSurf, if I try to open a URL in my web browser, obviously web browser is going to send this information to my Proxy, then Proxy is going to communicate my Gateway. So my gateway or firewall will know which URL I am trying to open? if no then how proxy hides this thing? Updatedd - Mor...
We are in the process of implementing a Bring Your Own Device policy to allow our many employees to use their personal laptops and desktops (Windows platform) to VPN into our company's network. These employees will then remote desktop into their PC's located in our internal network. Since we are PCI compliant this brin...
first post here so be gentle please! I understand the Heartbleed vulnerability concept, and I have a general grasp of Python. I'm struggling to understand the PoC Python code though, so was after a bit of code dissection :) Particularly the two sections where it defines the 'hello' and'hb' message? I watched the messag...
It seems somewhat unsafe to move the private portion of one's key around to multiple machines...but it also seems odd to have multiple identities floating around.
I ran TestSSLServer.exe (from http://www.bolet.org/TestSSLServer/) against a web server in my organization. The results seemed self explanatory save for one section I'm not sure how to interpret. Here are the full results of the scan: C:\temp>TestSSLServer.exe 1.2.3.4 443 Supported versions: SSLv2 SSLv3 TLSv1.0 Defla...
I am using HOTP to generate OTP to validate a request, in order to prevent replay attacks. I'm thinking about using a window of 10 (or so) iterations to accommodate a possible mismatch in the counter of client and server, but i am a bit concerned about the way i should treat those iterations. Should i reject every toke...
I use my personal computer for both programming work and gaming at my free time(and sometimes penetration testing) all these in different operating systems each. The problem is that I dont really trust Windows security wise(which will be used for gaming). So I figured a solution to having 3 different drives, 1 for Win...
What is the difference between these openssl commands: "openssl genrsa" "openssl genpkey" "openssl req -newkey rsa:bits [everything else]" Which one should I be using when preparing a new CSR?
I am working on a web site and am considering using OpenID for authentication. The site will have some low cost ($3-$5) premium services, but will not be protecting particularly sensitive user data, just saved game state. From my point of view, my main concern for authentication is that the person who paid for those ...
My IP address is 181.224.153.95 Domain: www.ashaybythebay.com FTP Hostname: m23.siteground.biz I added private domain servers to my domain name ashaybythebay.com and I see the two IP server addresses listed in my DNS settings. Here they are on the robtex.com report. ns1.ashaybythebay.com. 600 IN A 181.224.153.233 ...
I am creating a database to store our client's information at work (a heritage center specializing in DNA based genealogy). Once the results of a test come back, we have people that use the information generated on sites such as 23andMe to find relatives and send out invitations for relatives to connect with our clien...
What I've Read I'm read the following resources on session fixation, but I'm still having difficulty understanding some aspects of this kind of vulnerability: Ruby on Rails Security Guide § 2.7 Session Fixation. Preventive Measure for detecting Session Fixation attacks. Session fixation attack. Wikipedia: Session fixa...
In the Blue Midnight Wish (BMW) cryptographic hash function, is there a variable I can use to increase memory/CPU resource consumption to slow down the password hashing process? Call me crazy, but I really like BMW and I'd like to use it to hash passwords. It's obscure, so a bit better, but I am also paranoid, so I nee...
I plan on installing a VPN server on one of my computers that is running Ubuntu for purposes of connecting to my local network while I am not at home. At home I also have a desktop computer (separate from the one I'm going to install OpenVPN on). My question is: is there any point to connecting my desktop computer thro...
I want introduce Flurry API in my iOS app. But I heard since 2014 Australia start an act to against web page and mobile app to collect user information. My question is simple: Does using of API Flurry break Australian law? or any kind of regulations? P.S. IN CISSP, Law and regulation is part of Information Security. ...
So, I am wondering - is it possible for an attacker to sniff traffic on an Ethernet connection if they are not physically plugged into the modem/router hardware but they are connected through wifi? In this scenario the attacker is connecting via wi-fi and the victim is connecting through Ethernet. So both the victim an...
I noted that on a lot of money-related websites (banks, paypal, etc), you are brought to a page that "logs you in securely". This is an example of one: Meanwhile, websites that also store very sensitive information, such as google wallet, facebook, etc (all of which use SSL), don't use this page. What is the advantage...
Through reading from multiple sources and watching Security Now's How the Heartbleeds, I have come to the understanding that the following procedure is recommended to be safe from the Heartbleed vulnerability (assuming that the user's browser reacts correctly to revoked TLS certificates, which I know may not be the cas...
I have a VM in VirtualBox with two network adapters: a Host-only adapter and a NAT adapter; I was wondering if the VM gets compromised, is my Host-only adapter putting my host in danger? --- reasoning: Host-only to putty in NAT for internet access
I'm having problems with SSL certs and my SSL accelerator. I have a Sonicwall SSL-R and it only supports SSLv2, SSLv3, and TLS1.0. I have it configured to decode SSL with SSLv3 as the TLS1.0 implementation on it doesn't seem to work with most browsers. So with it configured as SSLv3, it works with Chrome, Safari, an...
So, I'd say I'm one level above n00b. I've gotten to the point where I have accomplished a WPA Handshake (and saved the output as xxx-01.cap). I have also downloaded these hash tables (if that is the right term for a .hash file). I've learned how to use crunch - but it is obviously insanely slow. I read somewhere that ...
I have seen some suspicious outbound communications blocked on my VPS, which hosts a small experimental Web site, and want to find out which application is making the attempt. The server is running CentOS and I'm using iptables for the firewall. Here is an excerpt from my iptables rule set: # create a new chain for r...
Is/was CNN Money Portfolio ever vulnerable to heartbleed? It states 256 bit SSL bank level encryption on the website..
We currently have the need to authenticate and verify generated keypairs. Our system allows users to register for our service which generates them a key-pair for use on our network. We are in need of a way to authenticate key-pairs so that we can verify they were generated by us, and not by someone else. Is it possibl...
While reviewing code for a vb.net application I have come across the following implementation of stored procedures using ExecuteDataSet Result = DBInstance.ExecuteDataSet(Name, paramArrayList.ToArray) Here, 'Name' is the name of the stored procedure and the input parameters from the client are passed in an array. 'DB...
After installing a CAcert personal certificate, every time I land on the BBC weather site it asks me to identify myself with a certificate. Why would any non-malicious web site do that unless I've requested to sign in first? The weather report is visible, so it's not like authentication is needed for any content. The ...
Chrome just warned me about malicious content when visiting a site - so I visited it. The source code is like the following: <html> <head> <link href="images/DPT2.ico" title="Dynamic PowerTrainer Manager" rel="shortcut icon"> <title>Dynamic PowerTrainer Manager</title> </head> <frameset rows="94,*" border="0" framebord...
I am learning about SSH and how to use it to secure file transfers and commands between a windows machine and a Linux server. Everything that I have read so far indicates that I need to use an SFTP client (like WinSCP) to connect to my server and transfer files. Gettin gin a little deeper, the docs for WinSCP never ...
As I understand it, when two systems create a secure SSH tunnel, the first step involves communicating the 'guidelines' for the encryption of that tunnel. If an third system is able to listen in on this initial conversation, wouldn't it be able to decode all of the data that is sent through the tunnel? How is the tun...
The Kohnfelder certificate standard is very similar to that of X.509 certificate standard. Comparing the two standards, does one have an advantage edge over the other? or what are the pros and cons of both standards?
As we move toward a future where fingerprints might possibly replace passwords, I see one issue. While passwords can be stolen, they can be changed by the owner after being notified of the security breach. However, fingerprints can be stolen, but they can't be changed. In this future, what happens if someone's biometri...
It is a well known fact that OS-related viruses are commonly written in low level languages like C or C++ which require direct access to the kernel of the CPU , I am just wondering if its possible that viruses can be written in high level languages like Python or Java which does not have as much access to the CPU kerne...
I got a DB (152.4 million users) (My own fake one).I did not hash the passwords, but encrypted them. So anyone that uses the same password, lets say, "123456", will have the same encryption/cipherkey. So what I need to do is extract the 100 most common cipherkeys. Keys: http://shrib.com/uPB5ALVn I did gap string db.txt...
So I want to write my own authentication scheme for a web-app server, as follows. I assume this is a Bad Idea from either security or cost-effectiveness reasons and I know the conventional wisdom is using an existing library, but I'd be happy for pointers as to where exactly I would be going wrong, since this scheme se...
I want to generate my own CAPTCHA. I am using PIL library of Python to generate an image. I would like to know how should the image be (i.e. numbers with weird font style or some mathematical calculation shown in an image (for example: 5x8)) How can I validate it with the user input? - Can I store it in a variable to c...
Put simply, CSRF tokens can be sniffed out of responses from the server unless the request/response are transmitted using encryption. Is this enough of a concern to worry about, or is it reasonable to allow the CSRF token to be transmitted via plaintext? In our case, the framework we're using provides for exactly one ...
I work for a small company who has troubles with third parties selling our products on Amazon. Sometimes those third parties have websites and when I use an IP address finder online it gives me coordinates to what I think is a proxy server because there has been a few times where I enter different IP addresses but I ge...
I wanted to check if the following means of generating a hash for storage of a password was secure. I have an username and password combo. In order to generate a secure hash, I am doing the following: gen_password = SHA256(password + "my_site_name") gen_salt = SHA256(username + password + "my_site_name") hash = PBKDF2...
I am trying to figure out if some Android applications with login functions are vulnerable to man in the middle attacks or not. I have set up a MITM proxy (as an attacker) on my lubuntu machine and set my cell phone to connect to the proxy before connecting to each app's server. Besides, I use Wireshark to see the traf...
Background The company I work for have a system with some data. This system's hosted in our private data centre. This system provides some ReST web services. We're looking to create a website, hosted in Windows Azure, which will call the above system's ReST services. Users of this website will be authenticated via ADFS...
What is the best way to accomplish this and prevent attacks like SSL Strip?
I have moved this question from stackoverflow to this place. I know it may be a question about 'opinion' but I am not looking for a private opinion but a source of the final decision to keep it this way. I have been taught that nobody tries to open a door when one does not know that the door even exist. The best defens...
I am running nmap to probe services that use SSL.¹ In order to detect vulnerability in non-standard ports, I am using the -sV option to perform service discovery. But it is very slow since it runs several probes per open port. How to make it more efficient and quicker by running only SSL probes? ¹ Specifically, I am e...
How do you know which attack method to use when using software like thc hydra, brutus, etc? e.g. http-get, https-get, http-form-get, http-form-post, etc? For example, for sites like Yahoo, Gmail, and Hotmail it's POP3. In this question, for example, the poster says he: pinged the website and obtained the IP address ...
When I first got to my university I had to provide my MAC address to get access to the internet. What I want to know is what information can they get from having my MAC address linked to my name. I use Private Internet Access as my VPN and have Zenmate for Chrome. When I'm plugged in to their network can they see what ...
If you're chatting with them via Skype, how can you get their IP address? Do you need some kind of program or is there a simple, obvious way? Is it illegal?
In my security class with David Wagner, we talked about some of the reasons why DNSSEC is not widely adopted right now. One of the reasons was that for backward compatibility reasons, clients need to accept both signed DNS records and unsigned ones. This means that websites have little incentive to start supporting DNS...
Function RemoveSuspeitos(ByVal strTXT) Dim txtAux As String txtAux = strTXT txtAux = Replace(txtAux, chr(34), "") txtAux = Replace(txtAux, "'", "") RemoveSuspeitos = txtAux End Function DB: MSSQL 1) Forget syntax errors in the above code, I am ...
I've recovered a .SQB SQL database backup file from a backup server and do not have the password. As I do not have the password available to me, I'm looking to determine what type of encryption is being used and also if it is possible to use any existing programs to crack the password. Based on this link I believe the ...
I'm going to build a demo affiliate network, which needs to be secured. Let say I have a web application called Affiliate Network Manager that manages all affiliates associated with my online book store. Affiliate Network Manager provides an API that enables a publisher's web site (an affiliate site) to get the logo o...
I have an X509Certificate (say Certificate-A) for signing purpose. While validating this certificate, I have to check its path with Intermediate & Root certificate which I have implemented fully. There is a custom extension in this Certificate-A which has a another signature as its value. While validating this Certifi...
I wouldn't bother asking this question if it was easy to find. In the past I've used a risk-analysis-checklist which was split up in serveral factors. For example, there are Human factors, Hardware is one, Organization is one of them and Environment too. I've lost this list and I wonder if anyone here could share this ...
According to news reports, arrests have already been made in relation to the Heartbleed bug. It sounds like this person managed to gain access to the website's database by capturing the credentials the app used to access the database. This person then apparently used those credentials to access the database. My questio...
Some dependencies were missing when I installed THC Hydra. I found this site which directs me to install the missing package: sudo apt-get install libsvn-dev libapr1-dev libaprutil1-dev But when I try this, I receive the following error message: -bash: -sudo: command not found I tried searching the web for how to ins...
I see PCI compliance related only to password security, as far as storage and transmission goes, for user names and email accounts. How does this relate to passwords for programs that run on a PCI compliant machine? For instance: Someone transmitting plain text passwords from a configuration file in an email. Is this c...
I was going through some CLIENT side defenses against reflected XSS e.g. XSS auditor(chrome), IE8 XSS Filters, Noscript. They use regular expression and other sophisticated techniques. My question is- why don't we store what ever is going to server as parameters and if these parameters are reflected in HTML response th...
On Stack Exchange's Add Login Credential page, one can add logins with Google, Facebook, Yahoo, etc. How many logins should I have to provide best combination of: The least chance of a hacker gaining access to my Stack Exchange account. The best recovery in case they do. One? As many as possible? My possibly incorrec...
I am building a license generator for nodejs and I am currently testing on Heroku. On my local machine running OpenSSL 1.0.1g, I'm able to test my key pairs (sign and verify) like this: # data.txt's content (the content of the string literal): "Tsenkov" openssl dgst -sha1 -sign private.pem data.txt > license.txt openss...
Is there any kind of protocol, scheme, or theoretical paper out there that implements or examines the problem of establishing trust between two parties (communicating, listening) where the communicating party initiates contact and does not have a key/secret/password known by the listening listening party; but the liste...
I own a Javascript application (Single Page Application) hitting some apis from my own RESTful backend. What I expect for my authentication/(authorization) mechanism is three things: Preventing all known malicious ways of stealing or acting on user's data: CSRF, XSS etc.. Allowing only my Javascript official client t...
So I'm just poking around the TCP/IP protocol using a Ruby library called PacketFu, and it seems to me that in each packet, it is possible to set all of the following Source IP Destination IP Source MAC Address Destination MAC Address and a whole bunch of other things. Here is my question: What prevents me from sniff...
I came across a project called jCryption 3.0, which encrypts data between the client and server, without using SSL. If a website's JavaScript had used jCryption 3.0 to encrypt login form fields before sending them (over SSL) back to the server, would this technique have mitigated a potential Heartbleed attack? This que...
So I was just thinking about how ARP poisoning can be used to intercept a clients request, forge an SSL cert, and send it back, with the caveat of not meeting certificate validation, but what if I were to intercept a client communication, send back a 301 to the http version of the site if the request is SSL, and then a...
When preparing to encrypt an entire partition, is it better to rely on "native" whole-disk encryption (eg following this tutorial), or an external tool like TrueCrypt? The wikipedia article comparing disk encryption tools doesn't seem overly helpful to me in working towards a decision.
I just read about Indosat trying to take over the Internet by mistake. I read on a Polish infosec-related website that most of their announced routes failed to propagate, but some of them reached the whole internet. This made me wonder - what security mechanisms protect the BGP protocol and why did they fail for these ...
It looks like msfpayload now generates a powershell-based payload when you pass it windows/reverse_tcp_shell. Is there a way to generate a regular cmd.exe reverse shell instead? Thanks!
In Bruce Schneier's book Applied Cryptography (1994?) he writes The NSA uses its power to restrict the public availability of cryptography, so as to prevent national enemies from employing encryption methods too strong for the NSA to break. My first question: Is this still true today? My second question: If this ...
Is there to be a review in the code of OpenSSL any time in the near future? It seems OpenBSD is doing a controversial one, in that the review is also "Ripping out some windows-specific cruft". But is any actual security firm doing a code review, or are there plans by the OpenSSL project to hire one?
I know that some of PHP's random functions are insecure due to them not being completely random and are considered a bad practice. My question is how an attacker go about finding that the developer used an insecure function to create a token, such as a forgotten password token or CSRF token?
Take for example a game. Typically, when you buy or download a game that can be played offline, all of the data required to run the game is shipped with the executable. In order to protect these resources, developers use various protection methods such as passwords, encryption, compression, file archives, anti-debugger...
Nodes don't know each other's IP address right? So how do they manage to address one another when it comes to sending data?
In many places a common practice is to connect in a backup drive at the end of the day and let the computer do an automatic backup in case of an emergency. I have been doing that for the past 2 years until the day I needed to use one came, my computer was infected with malware but as I booted up in linux and inserted m...
If someone uses a password manager and tries to organize the credentials well, doesn't that make attacks easier? Let's assume an attacker has the encrypted credentials available for offline attacks, and the attacker knows which software was used to save the data, and that he also knows what the credentials are used for...
I'm testing a client's web site vulnerability to SQL injection, which appears to be the case. The web site is hosted in IIS on a Windows server and is using Microsoft's .NET framework with SQL. I'm able to enter SQL statements in the sign in form. But when I enter ' or 1=1;-- in username, it replies "Your Account Has B...
This question seems to be related to https://stackoverflow.com/questions/15913200/facebook-js-sdk-not-executed-in-my-chrome-extension , but I am not developing a chrome extension. I am developing a normal web application. I am trying to integrate Facebook login on my website, which has a tight CSP policy. I am followin...
For various reasons I use both Keepass 2 and Lastpass. They have 90% the same password database. Is it secure to be using and maintaining both of them? Is it secure if they both use the same password (or a very similar password)?
PGP has been around for almost 20 years, but email encryption is not used by most 'regular people'. At the moment, with Snowden's NSA revelations (which should not be a huge surprise to anyone), the Heartbleed bug, etc. many people are becoming more interested in encryption and privacy, but email remains one of the way...
After reading this question about if it's safer to download and compile the source for an open source project or download and run the installer, I thought of another possible vulnerability: is it conceivable a compiler could be designed to leave a back door (or other malware) inside a file it outputs? In other words co...
Most webmail services like gmail, facebook, yahoo,.. allow anonymous to create a mail address. If there is a security breach, user may lost important information on that address. They may add phone number as a security layer, but even phone number can be lost and not guarantee security (in many countries, anonymous ph...
This is extremely strange but I have already tried this twice and am completely sure it is openSSL and not me doing the bug. I am encrypting the data 'Hygiene' with the password '*' (sorry can't tell you this) and get the ciphertext '3/mEwtZdIuIV5wwsQAcnAw==' then I changed the last charecter to '-' and when I decrypte...
I have a website and I want it to be accessible only by authorized clients/browsers (ex. with a certficate). The idea is that the users can only access the webpage in their office's computers (situated in different geographical areas, and they're different companies, so I cannot check IP or install something manually...
I'm curious is it possible to hide the ip address in a peer to peer connection. Mainly considering you have 2 computer connected remotly in a browser session. I would like to know if it's possible to hide the ip. Lets say A chats with B in a browser session chat build with Java script. But i want that A not to be abl...
I have set up a page and database so I can practice SQL injection. Ive tried some examples and it doesn't seem to work. It seems to add the username and password to that database, even though I input an Injection in the username field. Here is my code: include "Connection.php"; <form method="post" action="sqltest.php"...
I'm trying to figure out some possible attack scenarios for a project I'm conducting. I've read plenty of material about malware and, in particular, spyware and trojans. While it's hard to find unique specific definitions for both of them, which however I'm not really interested in, I came to the conclusions that, roug...
I'm trying to make a web application in Java with a login/session system using com.sun.net.httpserver and as far I know, it does not have an inbuilt method to this. So, I had the following idea: User try to login using a form in POST method. Login success Server generate an unique session ID string and send it to the ...
I know I can add a self-signed certificate from a website to Firefox, but only in the CA list of it. Question: does this mean I have to ultimately trust that self-signed certificate? Can someone sign with that self-signed certificate ex.: google.com, and since the cert is in my CA list, I wouldn't notice when visiting...
I'm designing an authentication methods for my client/server system consisting of: a windows desktop client application (.NET) windows/linux servers (C++) one "security server" which authorizes the users and passes some tokens for single sign on to the other servers A user would login providing username and a passwo...
What is the difference between CMP and SCEP protocol? Which one is better?
I'm thinking about implementing certificate pinning in a mobile app. The app will need to connect to several secure sites. Rather than having to update the app every time one of their certificates expire, would it make sense to: create a self-signed cert with an expiration date far in the future publish a list of vali...