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haegemonia.txt

haegemonia.txt
Posted Feb 24, 2004
Authored by Luigi Auriemma | Site aluigi.altervista.org

Haegemonia versions 1.07 and below have a remote vulnerability where the reading of unallocated memory causes a crash.

tags | advisory, remote
SHA-256 | 71612dcd0b3195ee5a2b49861682273a773a9112ce0ccfbaecb6d6f49e189790

haegemonia.txt

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

Luigi Auriemma

Application: Haegemonia
http://www.haegemonia.com
Versions: <= 1.07
Platforms: Windows
Bug: reading of unallocated memory (crash)
Risk: high
Exploitation: remote, versus server
Date: 24 Feb 2004
Author: Luigi Auriemma
e-mail: aluigi@altervista.org
web: http://aluigi.altervista.org


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


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


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

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


Haegemonia is a strategic space combat game developed by Digital
Reality (http://www.digitalreality.hu) released in the 2002.
This game has excellent ambient musics but its network protocol seems a
bit bugged...


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

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


The bug is a classical reading of unallocated memory caused by the
sending of a packet containing a chat message with a too big 32bit
number identifying the length of the message.


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

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


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


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

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


No fix.
Developers have not replied to my mails.


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


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