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Fw: [ut2003bugs] remote denial of service in ut2003 demo
From: "Arne Schwerdtfegger" <knud () skodliv dk>
Date: Tue, 17 Sep 2002 17:23:13 +0200
This might be of interest since the isse at hand is fixed now. ----- Original Message ----- From: "Daniel Vogel" <vogel () epicgames com> To: "Arne Schwerdtfegger" <knud () skodliv dk>; <ut2003bugs () epicgames com> Sent: Saturday, September 14, 2002 11:11 PM Subject: RE: [ut2003bugs] remote denial of service in ut2003 demo
We will address this denial of service attack shortly. Thanks! -- Daniel, Epic Games Inc.-----Original Message----- From: owner-ut2003bugs () lists epicgames com [mailto:owner-ut2003bugs () lists epicgames com]On Behalf Of Arne Schwerdtfegger Sent: Saturday, September 14, 2002 5:03 PM To: ut2003bugs () epicgames com Subject: [ut2003bugs] remote denial of service in ut2003 demo Dear sirs, It's possible to crash the client/the dedicated server by sending 1-3 character to udp ports 7778 or 10777. 4 characters will produce the following in the console: "Log: Unkown ping request command: 65". This can be reproduced with netcat[1] as follows: echo "a" | nc -u target 10777 Doing something like `cat /dev/urandom | nc -u target 7778` will flood the console with "Log: RecvFrom returned SOCKET_ERROR 10040" The tested platform was windows 2000 with servicepack 3, not that I
think
it matters. [1] http://www.atstake.com/research/tools/ -- Knud Erik Højgaard knud () INVALIDskodliv dk
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- Fw: [ut2003bugs] remote denial of service in ut2003 demo Arne Schwerdtfegger (Sep 18)