Check Point Advisories

GnuTLS Certificate Verification Policy Bypass (CVE-2014-0092)

Vulnerability
Protection

Check Point Reference:	CPAI-2014-1525
Date Published:	8 May 2014
Severity:	Medium
Last Updated:	Tuesday 09 May, 2017
Source:	GnuTLS GNUTLS-SA-2014-2
Industry Reference:	CVE-2014-0092
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	GnuTLS 2.x prior to patch 6aa26f78150ccbdf0aec1878a41c17c41d358a3b GnuTLS 3.1.x prior to 3.1.22 GnuTLS 3.2.x prior to 3.2.12
Vulnerability Description	A policy bypass vulnerability has been found in GnuTLS. The vulnerability is due to an error in validating certificates. A remote attacker can employ this vulnerability to bypass certificate validation performed by an application using a vulnerable version of the GnuTLS library.

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 GnuTLS Certificate Verification Policy Bypass 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: OpenSSL Enforcement Violation.
Attack Information: GnuTLS Certificate Verification Policy Bypass