Check Point Advisories

OpenLDAP Denial of Service (CVE-2020-36227)

Vulnerability
Protection

Check Point Reference:	CPAI-2020-3732
Date Published:	20 Feb 2023
Severity:	High
Last Updated:	Monday 20 February, 2023
Source:
Industry Reference:	CVE-2020-36227
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	OpenLDAP up to 2.4.57
Vulnerability Description	A denial of service vulnerability exists in OpenLDAP. Successful exploitation of this vulnerability would allow a remote attacker to create a denial of service condition on the affected system.

Protection Overview

This protection detects 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 Denial of Service (CVE-2020-36227) 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 Denial of Service (CVE-2020-36227)