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

                             Luigi Auriemma

Application:  War Times
              http://www.lsgames.com
Versions:     <= 1.03
Platforms:    Windows
Bug:          crash (unexploitable buffer-overflow)
Exploitation: remote, versus server (in-game)
Date:         17 May 2005
Author:       Luigi Auriemma
              e-mail: aluigi@autistici.org
              web:    aluigi.org


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


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


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

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


War Times is a real-time strategy game developed by Legend Studios
(http://www.lsgames.com) and released in March 2004.
The publisher of the game was/is Strategy First
(http://www.strategyfirst.com) but there are some problems with the
developers, the (interesting) facts are explained here:
http://www.lsgames.com/LS-SFI-termination.doc


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

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


The problem is caused by the absence of NULL delimiters in the text
strings passed to the server.
In this case if an attacker passes a nickname of 64 bytes (max data
block size) the server crashes for a buffer-overflow resulted by the
concatenation of this nickname with the IP address of the client.
The exploitation of the buffer-overflow doesn't seem possible.
A note is that the server doesn't crash immediately but only when
another connection is made to it.

The vulnerability is in-game so the attacker needs to know the server
password if it's protected.


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

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


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


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

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


No fix.
No reply from the vendor.


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