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Home arrow SecurityAlert Database

Arrow  Topic :

Buffer-overflow in the Asura engine


Arrow  SecurityAlert : 3053
Arrow  CVE : CVE-2007-4508
Arrow  SecurityRisk : Medium  Security Risk Medium  (About)
Arrow  Remote Exploit : No
Arrow  Local Exploit : Yes
Arrow  Exploit Available : No
Arrow  Credit : Luigi Auriemma
Arrow  Published : 26.08.2007

Arrow  Affected Software :
Rogue Trooper <= 1.0
Prism: Guard Shield <= 1.1.1.0
...possibly others...



Arrow  Advisory Content :  

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

Luigi Auriemma

Application: Asura engine (network SDK)
http://www.rebellion.co.uk
Games: Rogue Trooper <= 1.0
Prism: Guard Shield <= 1.1.1.0
...possibly others...
Platforms: Windows
Bug: challenge buffer-overflow
Exploitation: remote, versus server (in-game)
Date: 22 Aug 2007
Author: Luigi Auriemma
e-mail: aluigi (at) autistici (dot) org [email concealed]
web: aluigi.org

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

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

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

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

Asura is a game engine written by Rebellion and used in their games.
Rogue Trooper and Prism are the only two games (as far as I know) which
use the new network protocol which leads to the vulnerability reported
in this advisory, the older games were based on DirectPlay (Judge
Dredd) and Gamespy SDK (Sniper Elite).

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

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

A buffer-overflow vulnerability is located in the function which
handles the 0xf007 packet used for the challenge B query.
In this function the data passed by the client is copied (without
checks on its length) to a stack buffer of 256 bytes used for sending
the data back to the client, something similar to a ping.

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

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

http://aluigi.org/poc/asurabof.zip

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

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

No fix.
Rebellion is one of those vendors which have never replied to my past
mails.

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

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






Arrow  Feedback :

If you have additional information or notice any errors regarding this security advisory, please use contact form or email us at info()securityreason()com.
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