Check Point Advisories

Microsoft Active Directory LDAP Search Request Buffer Overflow (MS08-060; CVE-2008-4023)

Vulnerability
Protection

Check Point Reference:	CPAI-2008-156
Date Published:	14 Oct 2008
Severity:	Critical
Last Updated:	Thursday 20 August, 2015
Source:
Industry Reference:	CVE-2008-4023
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70, R65
Who is Vulnerable?
Vulnerability Description	Active Directory is an implementation of LDAP directory services by Microsoft. Lightweight Directory Access Protocol (LDAP) is Internet standard protocol designed for querying and modifying directory services. A remote code execution vulnerability has been reported in Microsoft Windows Active Directory. The flaw is due to insufficient validation of LDAP requests by the LDAP service. A Remote attacker can exploit this issue via a specially crafted LDAP request sent to a vulnerable Active Directory server. Successful exploitation may allow an attacker to create a denial of service condition on the affected server.

Protection Overview

This protection will detect and block malformed LDAP requests sent to the Active Directory 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 / R71 / R70 / R65

In the IPS tab, click Protections and find the Microsoft Active Directory LDAP Search Request Buffer Overflow (MS08-060) 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: LDAP Protection Violation.
Attack Information: Microsoft Active Directory LDAP Search request buffer overflow (MS08-060)