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Re: [Full-disclosure] Cisco IOS Shellcode Presentation

from [Valdis . Kletnieks] Network Security [Permanent Link]
Subject: Re: [Full-disclosure] Cisco IOS Shellcode Presentation
Date: Fri, 29 Jul 2005 18:06:15 -0400 
On Fri, 29 Jul 2005 23:17:48 +0200, Jochen Kaiser said:


maybe I am wrong, but with high end switchrouter I thought that routing 
protocols are handled by IOS by the cpu - after calculated, the topology 
is programmed in e.g. TCAM memory.


That's the *point* - the CPU is what's vulnerable here.  A suggestion was made 
to
replace the CPU with an ASIC or FPGA.  I pointed out that if you did that, then
the ASIC would have to do BGP4, because otherwise there'd not be a routing table
loaded in the TCAM memory for the line cards to use....

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