Security Basics mailing list archives

Re: VALN hopping

From: David Barroso <dbarroso () s21sec com>
Date: Wed, 5 Oct 2005 21:24:19 +0200

On Wed, 05 Oct 2005, Steve McLaughlin wrote:

According to Cisco they are a good security measure.
I don't know of any exploits which enable you to VLAN hop.

Does anyone know of any?

There are some theorical attacks but (double encapsulated 802.1q packets)
but they don't work with lastest IOS versions. If it is a misconfigured
device, then you could VLAN hop by setting up a trunking port.

Current thread:

RE: VALN hopping Bryan S. Sampsel (Oct 03)
- <Possible follow-ups>
- Re: VALN hopping Micheal Espinola Jr (Oct 03)
- RE: VALN hopping Craig Wright (Oct 04)
- RE: VALN hopping Steve McLaughlin (Oct 05)
  - Re: VALN hopping David Barroso (Oct 06)
- RE: VALN hopping Joshua Berry (Oct 06)
- RE: VALN hopping Joshua Berry (Oct 06)
  - Re: VALN hopping David Barroso (Oct 06)