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Update Protection against Microsoft XML Core Services Nested Tag Vulnerability (MS08-069)

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Check Point Reference: CPAI-2008-161
Date Published:
Severity:
Last Updated:
Source: Microsoft Security Bulletin MS08-069
Industry Reference(s): CVE-2007-0099
Protection Provided by: VPN-1
  • NGX R65
  • NGX R62
  • NGX R61
  • NGX R60
VSX
  • NGX R65
InterSpect
  • NGX
Who is Vulnerable?
Microsoft XML Core Services 3.0 on:
Microsoft Windows 2000 SP4
Windows XP SP2
Windows XP SP3
Windows XP Professional x64 Edition
Windows XP Professional x64 Edition SP2
Windows Server 2003 SP1
Windows Server 2003 SP2
Windows Server 2003 x64 Edition
Windows Server 2003 x64 Edition SP2
Windows Server 2003 with SP1 (Itanium)
Windows Server 2003 with SP2 (Itanium)
Windows Vista
Windows Vista SP1
Windows Vista x64 Edition
Windows Vista x64 Edition SP1
Windows Server 2008 for 32-bit Systems
Windows Server 2008 for x64-based Systems
Windows Server 2008 (Itanium)
Vulnerability Description
A remote code execution vulnerability has been reported in Microsoft XML Core Services (MSXML). MSXML is an application for processing Extensible Stylesheet Language Transformation in an XML file that allows programmers to create high-performance XML-based applications. By convincing a user to visit a specially crafted Web page, a remote attacker may trigger this vulnerability to execute arbitrary code on a vulnerable system.
Update/Patch Available
Apply patches:
Microsoft Security Bulletin MS08-069
Vulnerability Details
The vulnerability is due to the way that Microsoft XML Core Services handles nested tags. When MSXML handles content with many tags inside an IFRAME, it may lead to memory corruption. An attacker can trigger this flaw by convincing a user to view a specially crafted HTML document. Successful exploitation of this issue may allow the attacker to execute arbitrary code on an affected system.

Protection Overview
By enabling this protection, SmartDefense will detect and block attempts to exploit this vulnerability. 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 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 Microsoft XML Core Services Nested Tag Vulnerability (MS08-069).
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: Microsoft XML core service nested tag (MS08-069)

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 Microsoft XML Core Services Nested Tag Vulnerability (MS08-069)

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: Microsoft XML core service nested tag (MS08-069)

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 Microsoft XML Core Services Nested Tag Vulnerability (MS08-069).
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: Microsoft XML core service nested tag (MS08-069)

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 Microsoft XML Core Services Nested Tag Vulnerability (MS08-069)

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: Microsoft XML core service nested tag (MS08-069)