Check Point Advisories

Mozilla Multiple Products Multiple Location Headers CRLF Injection (CVE-2011-3000)

Vulnerability
Protection

Check Point Reference:	CPAI-2012-202
Date Published:	10 May 2012
Severity:	Medium
Last Updated:	Thursday 16 January, 2014
Source:
Industry Reference:	CVE-2011-3000
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	An HTTP response splitting vulnerability has been reported in Mozilla Firefox, Thunderbird and SeaMonkey. The vulnerability is due to an error in the way the applications handle HTTP responses with multiple location headers. A remote attacker may exploit this vulnerability by enticing users to open a specially crafted URL with an affected Mozilla product. Successful exploitation could allow attackers to redirect target users to a malicious URL under their control.

Protection Overview

This protection will detect and block malicious HTTP responses sent from the server.

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 Mozilla Multiple Products Multiple Location Headers CRLF Injection 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: Web Client Enforcement Violation.
Attack Information: Mozilla Multiple Products Multiple Location Headers CRLF Injection