full-disclosure - [CYBSEC] TippingPoint detection bypass

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Message-Id: <E1G4yoM-0005Hq-AM@webmail01.yourhostingaccount.com>
Date: Mon, 24 Jul 2006 07:41:22 -0400
From: "Andres Riancho" <ariancho@...sec.com>
To: full-disclosure@...ts.grok.org.uk
Subject: [CYBSEC] TippingPoint detection bypass

CYBSEC S.A.
www.cybsec.com

Pre-Advisory Name: TippingPoint detection bypass
==============

Vulnerability Class: Design flaw
==============

Release Date: 07/24/2006
==========

Affected Platforms:
=============
* All TippingPoint appliances with TOS <= 2.2.3.6514

Local / Remote: Remote
===========

Severity: High
======

Author: Andres Riancho
=====

Vendor Status:
===========
* Confirmed, update released.

Reference to Vulnerability Disclosure Policy:
================================
http://www.cybsec.com/vulnerability_policy.pdf

Vulnerability Description:
==================
A malformed packet can force the appliance to fallback to layer 2 mode. In this mode the appliance forwards all traffic without inspection. 

Technical Details:
=============
Technical details will be released 30 days after publication of this pre-advisory. This was agreed upon with TippingPoint to allow their customers to upgrade affected software prior to technical knowledge been publicly available.

Impact:
=====
Exploiting this vulnerability, an attacker would be able to bypass all filters and detection.

Solutions:
=======
TippingPoint has released a new version of the TippingPoint OS to address this vulnerability. Customers should apply the new firmware immediately.

Vendor Response:
=============
* 06/02/2005: Initial Vendor Contact.
* 06/20/2006: Vendor Confirmed Vulnerability.
* 07/21/2006: Vendor Releases Update.
* 07/24/2006: Pre-Advisory Public Disclosure.

Contact Information:
==============
For more information regarding the vulnerability feel free to contact the author at ariancho {at} cybsec.com.

For more information regarding CYBSEC: www.cybsec.com
(c) 2006 - CYBSEC S.A. Security Systems 
-- 
---------------------------- 
Andres Riancho
CYBSEC S.A. Security Systems 
E-mail: ariancho@...sec.com 
PGP key: http://pgp.mit.edu:11371/pks/lookup?op=index&search=ariancho
Tel/Fax: [54-11] 4371-4444
Web: http://www.cybsec.com 
-----------------------------

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