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DoS in Webbsyte Chat 0.9.0
From: "Donato Ferrante" <fdonato () autistici org>
Date: Tue, 3 Aug 2004 12:19:48 -0000


                           Donato Ferrante


Application:  Webbsyte Chat
              http://sourceforge.net/projects/wchat/

Version:      0.9.0

Bug:          Denial Of Service

Date:         02-Aug-2004

Author:       Donato Ferrante
              e-mail: fdonato () autistici org
              web:    www.autistici.org/fdonato



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1. Description
2. The bug
3. The code
4. The fix



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----------------
1. Description:
----------------

Vendor's Description:

"Webbsyte Chat lets you keep in touch with people all around the
world!"



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------------
2. The bug:
------------

The chat server doesn't correctly manage raw requests, in fact it will
crash with the following error:

"Run-time error '40006':
Wrong protocol or connection state for the requested transaction or
request"



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-------------
3. The code:
-------------

To test the vulnerability:

establish about 40 raw connections (like telnet) with the chat server.
NOTE: 40 is the maximum number of connections needed to test this bug.



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------------
4. The fix:
------------

Vendor was contacted.
The program is no more supported.



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