Full Disclosure mailing list archives
Cisco IOS Shellcode Presentation
From: "Eric Lauzon" <eric.lauzon () abovesecurity com>
Date: Fri, 29 Jul 2005 15:25:01 -0400
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...
I am stating that exploiting IOS flaw is nothing so new to the world. In conclusion, if IOS can be backdoored it can be exploited as any other os/arch due to design flaws. Still people talk about vulnerability when credential can be stolen and IOS can be replaced, in my book the two are not so far, exploit or use of stolen credential to backdoor. Because in the end you still want to keep control ;) -elz _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Re: Cisco IOS Shellcode Presentation, (continued)
- Re: Cisco IOS Shellcode Presentation Steve Friedl (Jul 30)
- Re: Cisco IOS Shellcode Presentation Micheal Espinola Jr (Jul 30)
- Re: Cisco IOS Shellcode Presentation Steve Friedl (Jul 30)
- Re: Cisco IOS Shellcode Presentation Micheal Espinola Jr (Jul 31)
- Re: Cisco IOS Shellcode Presentation Ron DuFresne (Jul 31)
- RE: Cisco IOS Shellcode Presentation Andrew R. Reiter (Jul 29)
- Re: Cisco IOS Shellcode Presentation John Kinsella (Jul 29)
- Re: Cisco IOS Shellcode Presentation Jason Coombs (Jul 29)
- Re: Cisco IOS Shellcode Presentation Ron DuFresne (Jul 29)
- Re: Cisco IOS Shellcode Presentation Valdis . Kletnieks (Jul 29)
- Re: Cisco IOS Shellcode Presentation Ron DuFresne (Jul 29)
- Re: Cisco IOS Shellcode Presentation Andrew R. Reiter (Jul 29)
- Re: Cisco IOS Shellcode Presentation Geo. (Jul 30)