Penetration Testing mailing list archives
Re: RE: Re: Anonymous access to Voice VLAN using CDP
From: lists () packetfocus com
Date: 26 Jul 2006 07:53:09 -0000
I don't this is top secret or proprietary to VoipShield. This is from FishNet :) "Cisco Systems uses CDP messages to identify IP Phones in order to give them access to the voice VLAN independently of data VLAN access by users or devices that have authenticated via 802.1x. A false sense of security in enterprises that use 802.1x port-level authentication and IP telephony together may be the result of this." So yes.. Yersenia CDP generator should be used for something like this. OR if you really want to figure it out. Setup a hub/sniffer inline with a VOIP phone and see how it sends the CDP auth packet to join the Voice Vlan. Cain/Able would be good as well. Check out the VOIP Section on my site: packetfocus.com for some open source tools. Email me if you have problems. Josh Perrymon CEO Packetfocus.com ------------------------------------------------------------------------------ This List Sponsored by: Cenzic Concerned about Web Application Security? Why not go with the #1 solution - Cenzic, the only one to win the Analyst's Choice Award from eWeek. As attacks through web applications continue to rise, you need to proactively protect your applications from hackers. Cenzic has the most comprehensive solutions to meet your application security penetration testing and vulnerability management needs. You have an option to go with a managed service (Cenzic ClickToSecure) or an enterprise software (Cenzic Hailstorm). Download FREE whitepaper on how a managed service can help you: http://www.cenzic.com/news_events/wpappsec.php And, now for a limited time we can do a FREE audit for you to confirm your results from other product. Contact us at request () cenzic com for details. ------------------------------------------------------------------------------
Current thread:
- Anonymous access to Voice VLAN using CDP jpecou (Jul 21)
- Re: Anonymous access to Voice VLAN using CDP Paul Robertson (Jul 21)
- RE: Anonymous access to Voice VLAN using CDP Wence Van der Meersch (Jul 25)
- <Possible follow-ups>
- Re: Re: Anonymous access to Voice VLAN using CDP jpecou (Jul 24)
- Re: Re: Anonymous access to Voice VLAN using CDP Mario Platt (Jul 25)
- RE: Re: Anonymous access to Voice VLAN using CDP Jacek Materna (Jul 25)
- Re: RE: Re: Anonymous access to Voice VLAN using CDP lists (Jul 27)