Check Point Advisories

IBM Lotus Domino LDAP Server Invalid DN Message Buffer Overflow (CVE-2007-1739)

Check Point Reference: CPAI-2007-250
Date Published: 7 Jun 2010
Severity: Critical
Last Updated: Tuesday 12 November, 2013
Source:
Industry Reference:CVE-2007-1739
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description IBM Lotus Domino Server is a collaboration software that provides mail, messaging, calendaring and scheduling capabilities across multiple platforms. The product implements numerous services based on open standards, including LDAP, SMTP, IMAP, and POP3. There exist a buffer overflow vulnerability in IBM Lotus Domino LDAP service. The vulnerability is due to a boundary error while handling crafted LDAP requests. A remote unauthenticated attacker can exploit this vulnerability by sending an LDAP request that contains an overly large DN (Distinguished Name) to the target service. Successful exploitation of this vulnerability may allow arbitrary code injection and execution with the privileges of the server process, which is System on Windows platforms. In case of an attack where code injection is not successful the affected application will terminate abnormally. In case of an attack where code injection and execution is successful, the behavior of the target is entirely dependent on the intended function of the injected code. The code in such a case would execute within the security context of the service process. Depending on the installation method, the affected service may run with the System account, or as the currently logged on user.

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

  1. In the IPS tab, click Protections and find the IBM Lotus Domino LDAP Server Invalid DN Message Buffer Overflow protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  LDAP Protection Violation.
Attack Information:  IBM Lotus Domino LDAP server invalid DN message buffer overflow

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