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Update Protection against Novell iManager eDirectory Plugin Schema Buffer Overflow Vulnerability

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Check Point Reference: CPAI-2010-108
Date Published:
Severity:
Last Updated:
Source: Secunia Advisory SA38030
Industry Reference(s): CVE-2009-4486
Protection Provided by: Security Gateway
  • R75
Connectra
  • 2.0
  • 1.x
IPS-1
  • IPS-1
  • IPS-1 NGX R65
Who is Vulnerable?
Novell iManager 2.7.2 and prior
Vulnerability Description
A stack buffer overflow vulnerability was reported in the Novell iManager eDirectory plugin. Novell iManager is a web-based administration console that provides management of many other Novell products. The vulnerability is due to improper validation of user input by a sub-application. A remote, authenticated attacker can exploit this vulnerability by sending specially crafted parameters to the application. Successful exploitation of this vulnerability would result in arbitrary code execution with the privileges of the SYSTEM.
Update/Patch Available
The vendor, Novell, has released an advisory addressing this vulnerability:
http://www.novell.com/support/viewContent.do?externalId=7004985&sliceId=1
Vulnerability Details
The vulnerability is caused due to a boundary error in the eDirectory plugin when processing schema information. Successful exploitation allows execution of arbitrary code.

Protection Overview
This protection will detect and block HTTP requests to the Novell iManager plugin with invalid request parameters.

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.

Security Gateway: R75

How Can I Protect My Network?
1. In the IPS tab, click Protections > By Protocol > IPS Software Blade > Application Intelligence > Web Servers.
2. In the right pane, double-click the Novell iManager eDirectory Plugin Schema Buffer 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: Web Server Enforcement Violation
Attack Information: Novell iManager eDirectory plugin schema buffer 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 Web Intelligence > WWW 2, and select the CGI Attacks protection group.
3. Click Novell iManager eDirectory Plugin Schema Buffer 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: WWW/CGI Attacks Protection Group
Description: Novell iManager eDirectory Plugin Schema Buffer Overflow