Check Point Advisories

Novell eDirectory dhost Buffer Overflow

Vulnerability
Protection

Check Point Reference:	CPAI-2009-440
Date Published:	5 Sep 2010
Severity:	Critical
Last Updated:	Sunday 05 September, 2010
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Novell eDirectory is a Lightweight Directory Access Protocol (LDAP) server, intended for use as a part of an identity management solution. The product is made available for multiple platforms including NetWare, Unix-like systems, and Windows. A remote code execution vulnerability has been reported in Novell eDirectory. The vulnerability is due to a buffer overflow error in the dhost service when handling HTTP requests. A remote, authenticated attacker can exploit this vulnerability by sending a specially crafted HTTP request to a vulnerable system. Successful exploitation would allow for arbitrary code injection and execution with the privileges of the server process. Code injection that does not result in execution could terminate the service, which could result 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 R80 / R77 / R75

In the IPS tab, click Protections and find the Novell eDirectory dhost Buffer Overflow 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: Novell eDirectory dhost buffer overflow