Check Point Advisories

Microsoft Windows Active Directory LDAPS Authentication Bypass (MS11-086; CVE-2011-2014)

Check Point Reference: CPAI-2012-041
Date Published: 31 Jan 2012
Severity: High
Last Updated: Tuesday 10 November, 2015
Source:
Industry Reference:CVE-2011-2014
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description An elevation of privilege vulnerability has been reported in Microsoft Windows Active Directory. The vulnerability is caused when Active Directory fails to validate the revocation status of an SSL certificate against the CRL associated with the domain account. A remote attacker may exploit this issue by using a previously revoked certificate to authenticate to the Active Directory domain. Successful exploitation could allow the attacker to gain access to network resources or run code under the privileges of a specific authorized user with which the certificate is associated.

Protection Overview

This protection will detect and block the transferring of malformed LDAP packets.

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 Windows Active Directory LDAPS Authentication Bypass (MS11-086) 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:  LDAP Protection Violation.
Attack Information:  Microsoft Windows active directory LDAPS authentication bypass (MS11-086)

×
  Feedback
This website uses cookies for its functionality and for analytics and marketing purposes. By continuing to use this website, you agree to the use of cookies. For more information, please read our Cookies Notice.
OK