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  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]
From: aluigi at autistici.org (Luigi Auriemma)
Subject: In-game format string in Judge Dredd vs. Death 1.01

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

                             Luigi Auriemma

Application:  Judge Dredd: Dredd vs. Death
              http://www.dreddvsdeath.com
Versions:     <= 1.01
Platforms:    Windows
Bug:          format string
Exploitation: remote, versus server (in-game)
Date:         02 October 2004
Author:       Luigi Auriemma
              e-mail: aluigi@...ervista.org
              web:    http://aluigi.altervista.org


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


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


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

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


Dredd vs Death is a cool FPS game based on the homonym comic strip.
The game has been developed by Rebellion (http://www.rebellion.co.uk)
and has been released in October 2003.


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

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


The problem is a format string bug in the handling of the messages
received from clients like "player connected", chat messages and so on.

Like any in-game bug, the attacker must have access to the match (so if
the server is protected by password, he must know it).


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

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


Launch a client and a server, go on the client side, join the server
and send the following chat message (by default pressing the 'T' key):

  %n%n%n%n%n

The server will crash immediately.

You can do the same check running only the server and sending the chat
message from the same computer.


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

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


No fix.
Developers have not replied to my mails.


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


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


Powered by blists - more mailing lists