Check Point Advisories

OpenLDAP Modrdn RDN NULL String Denial of Service (CVE-2010-0212)

Vulnerability
Protection

Check Point Reference:	CPAI-2010-165
Date Published:	13 Oct 2010
Severity:	Critical
Last Updated:	Wednesday 29 December, 2021
Source:
Industry Reference:	CVE-2010-0212
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	OpenLDAP is an open-source implementation of the Lightweight Directory Access Protocol (LDAP) service. On a default installation, the OpenLDAP server uses TCP port 389 for communication. A remote code execution vulnerability has been reported in OpenLDAP. The vulnerability is due to a memory corruption when handling a UTF8 string via modrdn. A remote attacker could exploit this vulnerability by sending a malicious request via modrdn to connect to the target server. Successful exploitation would allow injection and execution of arbitrary code in the context of the affect service or would cause termination of sldapd daemon 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 R81 / R80 / R77 / R75

In the IPS tab, click Protections and find the OpenLDAP Modrdn RDN NULL String 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 Modrdn RDN NULL String Denial of Service