RE: [Full-disclosure] Cisco IOS Shellcode Presentation

From: Andrew R. Reiter (arr_at_watson.org)
Date: 07/29/05

  • Next message: Eric Lauzon: "[Full-disclosure] Cisco IOS Shellcode Presentation" 
    Date: Fri, 29 Jul 2005 15:02:59 -0400 (EDT)
To: Eric Lauzon <eric.lauzon@abovesecurity.com>

    On Fri, 29 Jul 2005, Eric Lauzon wrote:

    :
    :So mutch fuss....its all so new ..
    :
    :
    :http://www.phrack.org/phrack/56/p56-0x0a
    :
    :
    :-elz

    I don't get your point; it obviously seems you're trying to be sarcastic.

    I think, if you realize what you're talking about, the point of the talk
    was the idea of reliably being able to exploit a IOS vulnerability.
    Reliably meaning having the cisco box not reboot on you (or other various
    scenarios that could occur).

    Gaius has some good information there, but there's a difference between
    being on a router and plugging in backdoor code and actually being able to
    get onto the router via an exploit.

    So what was the key point? CHECK HEAPS -- the idle proc that kicks in to
    validate heap management structures. Think about malloc() bugs (double
    free()'s and stuff) that were talked about a few years back... Those were
    easier to exploit b/c they didn't have a check heaps code that kicks in...

    If you don't understand the last paragraph, then, please stop trying to
    post technical arguments on this subject.

    Cheers,
    Andrew 

    --
Andrew R. Reiter
arr@watson.org
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