Penetration Testing mailing list archives
Re: Detecting Rogues from the wired side
From: "Mark Maher" <mmaher () ochsner org>
Date: Fri, 14 Jul 2006 08:57:42 -0500
1) AP fingerprinting using Nessus - use plugin number 11026 (just this plugin to prevent possible DoS). Scan the ports ranging from 21- 80 to make sure you get SNMP (UDP/69), etc. 2) Wired-side MAC prefix analysis. Remotely query ARP tables on routers. Collect a database of MAC address prefix that correspond to different wireless equipment. Vendors allocate MAC's to specific products (by OUI value). Can also find MAC addresses by: CAM tables on switches, DHCP server logs, and ARP caches on routers. Then compare the entries in the ARP table to your database of known prefixes for wireless equipment. A database of MAC prefixes was at http://www.ffrf.net/fingerprint (this was used by Kismet to identify devices), but the site appears to be down). A tool I use to collect the database of wired MAC 's is Netdisco (open source - http://netdisco.org ). Netdisco queries routers and switches using SNMP, telnet or CDP, and writes the output to a PostgreSQL database by MAC and IP addresses for nodes on wired and the wireless side. A big issue I've encountered with wired-side scanning is false-negatives, since not all of the AP's can be recognized with stack fingerprinting and banner analysis. You will not recognize soft AP's also. Wired-side scanning does not completely address the threat of rogues. I've used the AirWave RAPIDS product you mentioned and it's impressive as it provides wired and wireless-side scanning. Hope this helps. Mark Maher Ochsner Health Systems
<kuffya () gmail com> 07/13/06 6:40 AM >>>
Hi list, The client has got a huge network to be audited for Rogue Access Points...the timeframes are tight so we're going to work on the wired side, only, and I've been wondering how to do this more effectively.I have identified two options: - Run a 'customized' version of nmap to include only the Wireless AP signatures in the fingerprint database and investigate on any devices that are different makes & models from the ones 'officially endorsed' - Acquire a copy of RAPIDS from Airwave.com... which is supposed to do just that, and has a large databaase of Wireless Vendor Fingerprints. Has anyone used it or do you have any alternative products to suggest? I'm looking forward to your thoughts, folks. Many thanks, once again Stelios ------------------------------------------------------------------------------ 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. ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ 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:
- Detecting Rogues from the wired side kuffya (Jul 13)
- Re: Detecting Rogues from the wired side John Lampe (Jul 13)
- Re: Detecting Rogues from the wired side Rogan Dawes (Jul 13)
- Re: Detecting Rogues from the wired side okrehel (Jul 13)
- Re: Detecting Rogues from the wired side Clyde Johnson (Jul 13)
- Re: Detecting Rogues from the wired side Mark Maher (Jul 14)
- <Possible follow-ups>
- RE: Detecting Rogues from the wired side Shenk, Jerry A (Jul 13)
- RE: Detecting Rogues from the wired side David M. Zendzian (Jul 13)
- RE: Detecting Rogues from the wired side ddb (Jul 13)