Check Point Advisories

Novell GroupWise Messenger HTTP POST Request Invalid Memory Access (CVE-2006-4511)

Vulnerability
Protection

Check Point Reference:	CPAI-2006-305
Date Published:	23 Feb 2010
Severity:	Medium
Last Updated:	Tuesday 23 February, 2010
Source:
Industry Reference:	CVE-2006-4511
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Novell GroupWise Messenger is a corporate instant messaging solution targeted towards medium to large enterprise organizations. It facilitates secure communications and policy-based management through Novell's eDirectory product suite. The product is based on a client-server model where messaging clients connect to a central server to communicate after successful authentication is performed. An invalid pointer dereference flaw exists in the Novell GroupWise Messenger product. The flaw is due to an improper handling of crafted HTTP requests. A remote attacker may trigger this vulnerability to create a denial of service condition of the affected service. Upon processing of the malicious HTTP request, the affected service will terminate abnormally, dropping all existing connections and refusing further connections until restarted manually.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

In the IPS tab, click Protections and find the Novell GroupWise Messenger HTTP POST Request Invalid Memory Access protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Instant Messenger.
Attack Information: Novell GroupWise Messenger HTTP POST request invalid memory access