Check Point Advisories

OpenLDAP rwm Overlay Denial of Service (CVE-2013-4449)

Vulnerability
Protection

Check Point Reference:	CPAI-2013-3511
Date Published:	27 Oct 2013
Severity:	High
Last Updated:	Sunday 14 February, 2016
Source:
Industry Reference:	CVE-2013-4449
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	A denial of service vulnerability has been reported in OpenLDAP. The vulnerability is due to an error in reference counting in the rwm overlay. A remote, authenticated attacker can exploit this vulnerability by sending a crafted request to the vulnerable server. Successful exploitation would cause termination of the OpenLDAP daemon, slapd, resulting in a denial of service condition.

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 OpenLDAP rwm Overlay 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: LDAP Protection Violation.
Attack Information: OpenLDAP rwm overlay denial of service