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Update Protection against Novell iPrint Client nipplib.dll ActiveX Remote Buffer Overflow Vulnerability

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Check Point Reference: CPAI-2008-231
Date Published:
Severity:
Last Updated:
Source: Secunia Advisory: SA31370
Industry Reference(s): CVE-2008-2436
Protection Provided by: VPN-1
  • NGX R65
  • NGX R62
  • NGX R61
  • NGX R60
VSX
  • NGX R65
InterSpect
  • NGX
IPS-1
  • IPS-1
  • IPS-1 NGX R65
Who is Vulnerable?
Novell iPrint Client 4.x
Novell iPrint Client for Windows Vista 5.x
Vulnerability Description
A buffer overflow vulnerability was reported in Novell iPrint Client. Novell iPrint Client is an application that allows users to install and manage printers, or submit print job from a web browser. Novell iPrint Client is bundled with a set of ActiveX controls that implement various functions. One of these ActiveX controls is prone to a vulnerability that can be triggered by enticing a target user to open a malicious web page. Successful exploitation might lead to injection and execution of arbitrary code.
Update/Patch Available
Novell has released patches:

Novell iPrint Client for Windows 4.38:
http://download.novell.com/Download?buildid=3q-_lVDVRFI~

Novell iPrint Client for Windows Vista 5.08:
http://download.novell.com/Download?buildid=dv_yn4TOPmQ~
Vulnerability Details
The vulnerability is due to a boundary error in the Novell iPrint Client nipplib.dll ActiveX control when checking certain parameters that are passed to it. To trigger this issue, an attacker may create a malicious web page that will exploit this vulnerability. Successful exploitation may allow execution of arbitrary code on a vulnerable system.

Protection Overview
By enabling this protection, SmartDefense will detect and block the vulnerable ActiveX Control. Depending on the traffic mix, activating this protection may result in performance degradation.

In order for the protection to be activated, update your VPN-1/IPS-1/InterSpect product to the latest SmartDefense update. For information on how to update SmartDefense, 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.

VPN-1 NGX R65 & R62

How Can I Protect My Network?
1. In the SmartDefense tab, click Web Intelligence > HTTP Client Protections > Microsoft Internet Explorer Vulnerabilities > Block Novell iPrint nipplib.dll ActiveX Control Buffer Overflow.
2. In the configuration pane, under Settings > Mode, check Active.
3. 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 nipplib.dll ActiveX control buffer overflow

VPN-1 NGX R61 & R60

How Can I Protect My Network?
1. In the Web Intelligence tree, click HTTP Client Protections > Microsoft Internet Explorer Vulnerabilities.
2. Select the following:

Block Novell iPrint nipplib.dll ActiveX Control Buffer Overflow

3. Install security 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 nipplib.dll ActiveX control buffer overflow

VPN-1 VSX NGX R65

How Can I Protect My Network?
1. In the SmartDefense tab, click Web Intelligence > HTTP Client Protections > Microsoft Internet Explorer Vulnerabilities > Block Novell iPrint nipplib.dll ActiveX Control Buffer Overflow.
2. In the configuration pane, under Settings > Mode, check Active.
3. 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 nipplib.dll ActiveX control buffer overflow

InterSpect NGX

How Can I Protect My Network?
1. In the left pane, select Profiles > Default Protection and select the Web Intelligence page of the profile.
2. In the Web Intelligence tree, click HTTP Client Protections > Microsoft Internet Explorer vulnerabilities.
3. Select the following:

Block Novell iPrint nipplib.dll ActiveX Control Buffer Overflow

4. Install security 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 nipplib.dll ActiveX control 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 Application Intelligence > Badfiles, and select the ActiveX Parser protection group
3. Click User defined bad ActiveX Class ID (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: Badfiles ActiveX class in HTML file Alert/Filter
Description: User defined bad ActiveX Class ID