Check Point Advisories

Novell eDirectory NDS Verb Integer Overflow (CVE-2009-0895)

Check Point Reference: CPAI-2010-014
Date Published: 24 Jan 2010
Severity: Critical
Last Updated: Sunday 07 February, 2016
Source:
Industry Reference:CVE-2009-0895
Protection Provided by:

Security Gateway
R81, R80, R77, R75, R71, R70
Who is Vulnerable?
Vulnerability Description Novell eDirectory is a Lightweight Directory Access Protocol (LDAP) directory-based identity management system that centralizes the management of user identities, access privileges and many other network resources. An integer overflow was identified in Novell eDirectory. The vulnerability is due to errors in Novell eDirectory when processing maliciously crafted service requests (NDS Verb 0x1) with an overly large integer value that would be used in a memory allocation. A remote attacker can exploit this issue by sending a specially crafted request to a target host. Successful exploitation could allow the attacker to execute arbitrary code on the affected service.

Protection Overview

This protection will detect and block malformed Novell NDS packets sent to the eDirectory system.

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 / R71 / R70

  1. In the IPS tab, click Protections and find the Novell eDirectory NDS Verb Integer 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:  Novell eDirectory NDS Verb integer overflow

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