[c-nsp] OSPF - Invalid length - Is this an attack?

Tassos Chatzithomaoglou achatz at forthnet.gr
Thu Nov 8 06:20:38 EST 2007


Maybe someone is trying to exploit the following?
http://www.cisco.com/en/US/partner/products/products_security_advisory09186a008029e189.shtml

--
Tassos

Sascha E. Pollok wrote on 8/11/2007 12:35 μμ:
> Nov 6 18:16:00 CET: %OSPF-4-BADLENGTH: Invalid length
>   10246 in OSPF packet type 208 from 218.104.98.100
>   (ID 37.68.117.149), GigabitEthernet15/0
> 
> IPs are far from our network ranges. Gig15/0 is
> backbone facing.
> 
> Anyone with an idea what could be causing this?
> 
> Thanks
> Sascha
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