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CounterStrike (HalfLife?) Server possible DoS attack.

From: Patrick Webster <webster_p(at)DeMorgan.com.au>
Date: Wed Nov 27 2002 - 19:12:24 EST


Hi Guys,

Could someone who actually has CounterStrike on their PC look into this for me and see if it still exists?
Last I remember, it was possible to crash a CS server and thus disconnect all users by requesting "say nextmap" multiple times. To reproduce this attack, you simply bind any key to ask the server to display the next map - I recall it as 'say nextmap'. So, for example;

F6 = 'say nextmap; say nextmap; say nextmap; say nextmap; say nextmap; say nextmap; say nextmap; say nextmap; say nextmap; say nextmap; say nextmap'

Connect to a server, and rapidly press F6 until you are disconnected. Try and reconnect - the service should have crashed.

Thanks,

Patrick Webster,
Systems Administrator

DeMorgan Information Security Services

Freecall: 1800 DE MO RG (33 66 74)

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Address: Level 2, 41 McLaren St
North Sydney, NSW, 2060, Australia

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Received on Thu Nov 28 13:35:16 2002

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