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Update Protection against Microsoft XML Core Services DTD Cross-Domain Scripting Vulnerability (MS08-069)

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Check Point Reference: CPAI-2008-162
Date Published:
Severity:
Last Updated:
Source: Microsoft Security Bulletin MS08-069
Industry Reference(s): CVE-2008-4029
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?
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 for Itanium-based Systems

Microsoft XML Core Services 4.0 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 for (Itanium)

Vulnerability Description
An information disclosure 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 read data from another domain in Internet Explorer.
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 error checks for external document type definitions (DTDs), allowing a violation of cross-domain policy. An attacker can trigger this flaw by convincing a user to view a specially crafted HTML document. Successful exploitation could allow the attacker to read data from another domain in Internet Explorer.

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/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 Microsoft XML Core Services DTD Cross-Domain Scripting (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 services DTD cross-domain scripting (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 DTD Cross-Domain Scripting (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 services DTD cross-domain scripting (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 DTD Cross-Domain Scripting (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 services DTD cross-domain scripting (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 DTD Cross-Domain Scripting (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 services DTD cross-domain scripting (MS08-069)

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 CVE-2008-4029 XML Core services Error Check Vulnerability (MS08-069) - 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: CVE-2008-4029 XML Core services Error Check Vulnerability (MS08-069)