[Asterisk-Users] Cisco 7960s

[Josh Howlett]

Cisco and bugtraq need to know this!

josh.

On Fri, 2003-07-11 at 09:21, Matthew Hardeman wrote:
> Cisco should really be ashamed of this product...
>  
> While it is physically well constructed, and has excellent sound
> quality along with a very pleasant user interface, the device has
> SERIOUS stability issues, unless you run your network with an iron
> fist...
>  
> Quite by accident, while configuring my Asterisk system to connect to
> a Cisco 7960 via SIP in a standard office PBX type arrangement, I
> discovered something interesting...
>  
> By screwing around with both the source IP address of a SIP message,
> along with certain IP addresses in the SIP message itself, it's quite
> easy to crash the Cisco.
>  
> In short, it would be trivial to DOS (by forcing continuous crashes
> and the subsequent reboots) any Cisco 7960 that you can route UDP
> packets to...
>  
> Matt Hardeman
> PaperSoft
>  
>  
-- 
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Josh Howlett, Networking & Digital Communications,
Information Systems & Computing, University of Bristol, U.K.
'phone: 0117 928 7850 email: josh.howlett at bris.ac.uk
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