Check Point Advisories

OpenLDAP ber_get_next Denial of Service (CVE-2015-6908)

Vulnerability
Protection

Check Point Reference:	CPAI-2015-1162
Date Published:	7 Oct 2015
Severity:	Critical
Last Updated:	Thursday 05 November, 2015
Source:	OpenLDAP ITS#8240
Industry Reference:	CVE-2015-6908
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	OpenLDAP Foundation OpenLDAP 2.4.42 and prior
Vulnerability Description	A denial of service condition has been reported in OpenLDAP. The vulnerability is due to an obsolete assertion failure in ber_get_next(). A remote user can exploit this vulnerability by sending a crafted BER message to the target server. A successful exploitation will cause 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 ber_get_next 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 ber_get_next Denial of Service