Check Point Advisories

Microsoft DNS Server Validation Spoofing (MS09-008) - High Confidence (CVE-2009-0234)

Check Point Reference: CPAI-2013-1646
Date Published: 9 Apr 2013
Severity: Critical
Last Updated: Tuesday 09 April, 2013
Source:
Industry Reference:CVE-2009-0234
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description A weakness exists in Microsoft DNS server implementation. The problem is caused by improper handling of negative results for DNS ANY queries. Remote attackers could exploit this vulnerability by sending numerous ANY queries to the target server, followed by malicious responses to the same server. Successful exploitation of this vulnerability would lead to the cache poisoning of the vulnerable 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

  1. In the IPS tab, click Protections and find the Microsoft DNS Server Validation Spoofing (MS09-008) - High Confidence protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  DNS Enforcement Violation.
Attack Information:  Microsoft DNS Server validation spoofing (MS09-008) - high confidence

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