Check Point Advisories

ISC BIND DNS64 RPZ Assertion Failure Denial of Service (CVE-2012-5689)

Vulnerability
Protection

Check Point Reference:	CPAI-2013-088
Date Published:	30 Apr 2013
Severity:	High
Last Updated:	Sunday 25 October, 2015
Source:
Industry Reference:	CVE-2012-5689
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	A denial-of-service vulnerability has been reported in the ISC BIND name server named. The vulnerability is due to faulty interaction with the DNS64 module resulting in the termination of the named process. A remote attacker can exploit this vulnerability by querying an "AAAA" type record for a host that has an RPZ rewrite rule in the DNS64-enabled DNS server.

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 ISC BIND DNS64 RPZ Assertion Failure Denial of Service 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: DNS Enforcement Violation.
Attack Information: ISC BIND DNS64 RPZ assertion failure denial of service