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Update Protection against Novell iPrint Client Remote File Deletion Vulnerability

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Check Point Reference: CPAI-2010-399
Date Published:
Severity:
Source: Secunia Advisory: SA40782
Protection Provided by: Security Gateway
  • R75
Who is Vulnerable?
Novell iPrint Client for Windows prior to 5.42
Vulnerability Description
A design weakness exists in Novell iPrint web client. Novell iPrint Client is an application that allows users to install and manage printers, or submit print jobs from remote locations using a web browser. The application allows printer driver download and installation, browser-enabled printer interface, and customizable user interface among other capabilities. An attacker might exploit this vulnerability to create a denial of service condition or to remove files from the user's system.
Update/Patch Available
Apply patches:
Novell 
Vulnerability Details
The vulnerability is due to a design error in nipplib.dll which is called by the ActiveX control, ienipp.ocx. The input parameter is not sufficiently verified, allowing an attacker the ability to delete arbitrary files. A remote attacker can exploit this vulnerability by enticing a user to access a malicious website. This can lead to removal of all the files on a user's system rendering the system non bootable and causing 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-2006-05Protection taband 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 > Web Intelligence > HTTP Client Protections Microsoft Internet Explorer Vulnerabilities.
2. In the right pane, double-click the Novell iPrint Client Remote File Deletion 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 Client Enforcement Violation
Attack Information: Novell iPrint client remote file deletion