Penetration Testing mailing list archives
Re: Sniffing on a switch
From: Dave Bush <hockeystatman () gmail com>
Date: Sat, 29 Oct 2005 09:11:50 -0400
On 10/27/05, Andy Meyers <andy.meyers () hushmail com> wrote:
Now i know people say you "cant" sniff on a switch and I know about ARP poisoning and MAC flooding. But there has to be another way. I have heard too many stories about "he sniffed my AIM conversation on a Cisco switch" (an example is in the most recent version of 2600). Does anyone know of any technique how to do this? Can you ARP poison a switch?
I've heard of the techniques used by DSNIFF, but have never tried it. If you've got admin privs on a switch (either authorized or unauthorized) you can span a port so that two get the same traffic. ie: Make port 7/23 (your port) the same as port 7/9 (the port you want to sniff). Have done this to monitor systems before. Works like a charm! -- Dave Bush <hockeystatman () gmail com> There are two seasons in my world - Hockey and Construction ------------------------------------------------------------------------------ Audit your website security with Acunetix Web Vulnerability Scanner: Hackers are concentrating their efforts on attacking applications on your website. Up to 75% of cyber attacks are launched on shopping carts, forms, login pages, dynamic content etc. Firewalls, SSL and locked-down servers are futile against web application hacking. Check your website for vulnerabilities to SQL injection, Cross site scripting and other web attacks before hackers do! Download Trial at: http://www.securityfocus.com/sponsor/pen-test_050831 -------------------------------------------------------------------------------
Current thread:
- Sniffing on a switch Andy Meyers (Oct 28)
- Re: Sniffing on a switch mike jablonski (Oct 29)
- Re: Sniffing on a switch Marlen Caemmerer (Oct 29)
- Re: Sniffing on a switch Goran Sevic (Oct 29)
- Re: Sniffing on a switch Volker Tanger (Oct 29)
- Re: Sniffing on a switch Cedric Blancher (Oct 31)
- Re: Sniffing on a switch jgervacio (Oct 31)
- Re: Sniffing on a switch Chris Mills (Oct 29)
- Re: Sniffing on a switch Stephen J. Smoogen (Oct 29)
- Re: Sniffing on a switch Dave Bush (Oct 29)
- Re: Sniffing on a switch ilaiy (Oct 29)
- Re: Sniffing on a switch Mikael Kuisma (Oct 31)
- <Possible follow-ups>
- RE: Sniffing on a switch Smith, Michael J. (Oct 29)
- RE: Sniffing on a switch Evans, Arian (Oct 31)
- RE: Sniffing on a switch Todd Towles (Oct 31)