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Date: Tue, 24 May 2005 14:54:34 -0400
From: Joel Esler <eslerj@...il.com>
To: Luigi Auriemma <aluigi@...istici.org>
Cc: red@...sec.de, vuln@...unia.com, news@...uriteam.com,
	full-disclosure@...ts.grok.org.uk, bugs@...uritytracker.com,
	bugtraq@...urityfocus.com
Subject: Re: Endless loop in Halo 1.06


I heard you can create a loop by using "BASEIC" code by going into the
menu running

10 Click on "Settings" 
20 Click on "Main Menu" 
30 Click on "Settings" 
40 Click on "Main Menu" 
50 GOTO 10


On 5/24/05, Luigi Auriemma <aluigi@...istici.org> wrote:
> 
> #######################################################################
> 
>                             Luigi Auriemma
> 
> Application:  Halo: Combat Evolved
>              http://www.microsoft.com/games/pc/halo.aspx
> Versions:     <= 1.06 and Custom Edition 1.00
> Platforms:    Windows
> Bug:          endless loop
> Exploitation: remote, versus server
> Date:         24 May 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
> ===============
> 
> 
> Halo is the great FPS game developed by Bungie Studios and ported on PC
> by Gearbox Software (http://www.gearboxsoftware.com).
> It is published by Microsoft Games (http://www.microsoft.com/games/)
> and has been released at the end of 2003.
> 
> 
> #######################################################################
> 
> ======
> 2) Bug
> ======
> 
> 
> The game is not able to handle the malformed data with the conseguence
> of entering in an endless loop that continues to check the same data.
> The effects are that the server freezes completely, so is no longer
> able to handle packets, and the CPU goes to 100%.
> 
> 
> #######################################################################
> 
> ===========
> 3) The Code
> ===========
> 
> 
> http://aluigi.altervista.org/poc/haloloop.zip
> 
> 
> #######################################################################
> 
> ======
> 4) Fix
> ======
> 
> 
> The upcoming version 1.07 should be released in these days, the bug has
> been reported to the developers exactly one month ago.
> 
> 
> #######################################################################
> 
> 
> ---
> Luigi Auriemma
> http://aluigi.altervista.org
> 
> 


-- 
Joel Esler
BASE Project Lead
http://sourceforge.net/projects/secureideas
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