Check Point Reference: | CPAI-2006-273 |
Date Published: | 13 Jun 2010 |
Severity: | High |
Last Updated: | Sunday 29 April, 2018 |
Source: | |
Protection Provided by: |
Security Gateway |
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. There exists a vulnerability in the OpenLDAP Lightweight Directory Access Protocol (LDAP) service. The flaw is due to an improper handling of specially crafted BIND requests sent to the server which contain overly long CRAM-MD5 credential strings. This can be exploited by an unauthenticated remote attacker to cause an assertion failure, and thus, causing a Denial of Service condition in the affected service. The target server process will terminate as a result of an attack. Consequently, all established connections will be severed and further connections will not be possible until the server is manually restarted. |
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.
This protection's log will contain the following information:
Attack Name: LDAP Protection Violation.
Attack Information: OpenLDAP LDAP server BIND request denial of service