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Update Protection against Novell eDirectory NDS Verb Integer Overflow Vulnerability

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Check Point Reference: CPAI-2010-014
Date Published:
Severity:
Last Updated:
Source: Secunia Advisory: SA37554
Industry Reference(s): CVE-2009-0895
Protection Provided by: Security Gateway
  • R70
IPS-1
  • IPS-1
  • IPS-1 NGX R65
Who is Vulnerable?
Novell eDirectory 8.8.x prior to 8.8.5.2
Novell eDirectory prior to 8.7.3 SP10 FTF2
Vulnerability Description
An integer overflow was identified in Novell eDirectory. 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 attacker can exploit this vulnerability to execute arbitrary code on a target system.
Update/Patch Available
Apply patches:
Novell
Vulnerability Details
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, Protection tab and select the version of your choice.

To configure the defense, select your product from the list below and follow the related protection steps.

Additional Information
Security Vulnerability: Novell eDirectory Heap-based Buffer Overflow

Security Gateway R70

How Can I Protect My Network?
1. In the IPS tab, click Protections > By Protocol > Application Intelligence > LDAP.
2. In the right pane, double-click the Novell eDirectory NDS Verb Integer Overflow protection.
3. In the Protection Details window, click on Edit. Choose the protection's Action (Override IPS Policy with: Prevent/Detect), and apply Additional Settings.
4. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:

Attack Name: LDAP Protections
Attack Information: Novell eDirectory NDS Verb integer overflow

IPS-1 & IPS-1 NGX R65

How Can I Protect My Network?

1. In the IPS-1 Policy Manager, click on the Protection tab.
2. In the Protection tree, click Application Intelligence > Enterprise Software, and select the Novell Various Vulnerabilities protection group.
3. Click Novell eDirectory NDS Verb Integer Overflow (IPS-1 NGX R65 only).
4. In the configuration pane, under Settings, check Active.
5. Click on Install Policy.

How Do I Know if My Network is Under Attack?

Upon attack, the following entries will be logged:

Alert Name: Novel Enterprise Software
Description: Novell eDirectory NDS Verb Integer Overflow