bugtraq - Limited buffer-overflow in Painkiller 1.35

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date: Wed, 2 Feb 2005 17:30:26 +0000
From: Luigi Auriemma <aluigi@...istici.org>
To: bugtraq@...urityfocus.com, bugs@...uritytracker.com, news@...uriteam.com,
        full-disclosure@...ts.netsys.com, vuln@...unia.com
Subject: Limited buffer-overflow in Painkiller 1.35

#######################################################################

                             Luigi Auriemma

Application:  Painkiller
              http://www.painkillergame.com
Versions:     <= 1.35
Platforms:    Windows
Bug:          limited buffer-overflow
Exploitation: remote, versus server (in-game)
Date:         02 Feb 2005
Author:       Luigi Auriemma
              e-mail: aluigi@...istici.org
              web:    http://aluigi.altervista.org

#######################################################################

1) Introduction
2) Bug
3) The Code
4) Fix

#######################################################################

===============
1) Introduction
===============

Painkiller is the great FPS game developed by People can Fly
(http://www.peoplecanfly.com) and released in April 2004.

#######################################################################

======
2) Bug
======

The bug is about the buffer that must contain the Gamespy cd-key hash
for the online server-side authorization.
This buffer is limited to 100 bytes (the Gamespy cd-key hash is long
72 chars), so if an attacker uses a longer hash will be able to
overflow the buffer.

However exist two limitations for the exploitation of this bug, the
first is that only alpha-numeric chars are allowed (1-9, A-Z and a-z)
while the second is not so important since this is an in-game bug, so
if a server is protected by password the attacker must know it.

#######################################################################

===========
3) The Code
===========

http://aluigi.altervista.org/poc/painkkeybof.zip

#######################################################################

======
4) Fix
======

Version 1.61.

#######################################################################

--- 
Luigi Auriemma
http://aluigi.altervista.org

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.netsys.com/full-disclosure-charter.html