Security Basics mailing list archives
RE: Locking Cisco Router
From: "Erick B." <erickbe () yahoo com>
Date: Tue, 19 Nov 2002 19:58:46 -0800 (PST)
From my understanding, it is still possible to get in
even with no pw recovery set. I have a capture here showing it being done - the whole process. Haven't tried this myself yet though. Erick --- "Dozal, Tim" <tdozal () cisco com> wrote:
If you have local console access to the router and physical access to reboot the router (both needed for a PW recovery I believe) to get into rommon mode then the router is already pretty compromised. During a PW recovery the previous programming is overwritten by your new setup so what would be gained by permanently locking a router other than making more sales for Cisco (which I won't complain about) after a router pw is lost and you now need to buy a new piece of hardware. I may be missing the real question here because I just don't see why you would want to make a piece of hardware permanently unusable if a PW is lost. -Tim (btw, these are my comments and may not be shared by my company nor were they influenced by actual company information on this subject... Just my 2cents on the question) -----Original Message----- From: Rok Pintar [mailto:rokp () news reproms si] Sent: Saturday, November 16, 2002 2:22 AM To: security-basics () securityfocus com Subject: Re: Locking Cisco Routeris it possible to lock a cisco router to a pointthat even a passwordrecovery cant work to enter the router.Well, there are supposed to be new 2600/3600 ROMMON images that allow you to disable password recovery. If you have it, you can do something like "no service password-recovery". ROK
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Current thread:
- Locking Cisco Router David Lubowa (Nov 16)
- Re: Locking Cisco Router Rok Pintar (Nov 17)
- RE: Locking Cisco Router Vik Evans (Nov 19)
- RE: Locking Cisco Router matt (Nov 18)
- RE: Locking Cisco Router David Lubowa (Nov 19)
- RE: Locking Cisco Router Stephen Wilcox (Nov 18)
- <Possible follow-ups>
- RE: Locking Cisco Router Dozal, Tim (Nov 19)
- RE: Locking Cisco Router Erick B. (Nov 21)
- RE: Locking Cisco Router DeGennaro, Gregory (Nov 19)
- RE: Locking Cisco Router Mark (fat) (Nov 22)
- Re: Locking Cisco Router Meritt James (Nov 25)
- Re: Locking Cisco Router Rok Pintar (Nov 25)
- Re[2]: Locking Cisco Router DocValde (Nov 27)
- RE: Locking Cisco Router Mark (fat) (Nov 22)
- Re: Locking Cisco Router Rok Pintar (Nov 17)
- RE: Locking Cisco Router Dozal, Tim (Nov 22)
- RE: Locking Cisco Router Chris Berry (Nov 22)
- RE: Locking Cisco Router Dozal, Tim (Nov 25)
- RE: Locking Cisco Router Christian Freas (Nov 25)
- RE: Locking Cisco Router puyeng abis (Nov 26)