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From: VOID.AT Security (crew_at_void.at)
Date: Fri Jan 10 2003 - 11:50:37 CST
[void.at Security Advisory VSA0305]
HLTV offers the ability to have thousands of spectators watch
online games on Half-Life-servers.
Overview
========
By sending a specially crafted packet to the hltv-server,
an attacker can cause the server to crash.
Affected Versions
=================
The one that comes with hlds 3.1.1.0; possibly others.
Impact
======
Medium. The remote server simply crashes.
Details
=======
Packets querying things like player-status etc always start
with \xff\xff\xff\xff, followed by a query command and terminated
by a \0.
When you simply send \xff\xff\xff\xff\0 to the server, it crashes.
Solution
========
Vendor patch needed!
Exploit
=======
Come on :-)
Discovered by
=============
greuff <greuff
void.at>
Credits
=======
void.at
everyone who was at 19c3
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