[NT] Buffer Overflow in AnalogX SimpleServer:Shout

From: support@securiteam.com
Date: 06/28/02 

From: support@securiteam.com
To: list@securiteam.com
Date: Fri, 28 Jun 2002 08:22:08 +0200 (CEST)

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  Buffer Overflow in AnalogX SimpleServer:Shout
------------------------------------------------------------------------

SUMMARY

A buffer overflow exists in AnalogX's SimpleServer:Shout software.
Exploitation of this vulnerability allows remote execution of arbitrary
code with the privileges of the Shout daemon (default is SYSTEM).

DETAILS

Vulnerable systems:
 * SimpleServer:Shout version 1.0

Sending a fake request to the target system on TCP port 8001 consisting of
a packet of 348 or more non-space characters followed by 2 carriage return
linefeeds causes a write access violation in the application. Manually
dismissing the application error message box that is displayed on the
affected system at this point will terminate the process. If the message
box is not manually dismissed,, repeated sending of the request causes
repeated access violation message boxes to appear on the affected system
to the point where the service no longer responds.

Different number of bytes sent cause different error conditions to occur,
such as write access violations and Watcom memory error dialogs to appear.

Solution:
Refer to the vendor's web site for further details:
 <http://www.analogx.com> http://www.analogx.com

ADDITIONAL INFORMATION

The information has been provided by <mailto:robin.keir@foundstone.com>
Robin Keir.

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