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Update Protection against Microsoft Internet Explorer Uninitialized Memory Corruption Vulnerability (MS08-045)

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Check Point Reference: CPAI-2008-119
Date Published:
Severity:
Last Updated:
Source: Microsoft Security Bulletin MS08-045
Industry Reference(s): CVE-2008-2256
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?
Internet Explorer 5.01 and Internet Explorer 6 SP1:
Microsoft Windows 2000 SP4

Internet Explorer 6 and Internet Explorer 7:
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)

Internet Explorer 7:
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 was reported in the way Microsoft Internet Explorer accesses an object that has not been correctly initialized or that has been deleted. By convincing a user to visit a specially crafted HTML documents or open a malicious web page, a remote attacker could cause the browser to crash allowing execution of arbitrary commands.
Update/Patch Available
Apply patches:
Microsoft Security Bulletin MS08-045
Vulnerability Details
The vulnerability is caused when Internet Explorer attempts to access an object which has not been initialized or has been deleted, resulting in memory corruption. 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 attempts to exploit this vulnerability.

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 IE Uninitialized Memory Corruption Vulnerability (MS08-045).
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 IE uninitialized memory corruption vulnerability (MS08-045)

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 IE Uninitialized Memory Corruption Vulnerability (MS08-045)

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 IE uninitialized memory corruption vulnerability (MS08-045)

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 IE Uninitialized Memory Corruption Vulnerability (MS08-045).
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 IE uninitialized memory corruption vulnerability (MS08-045)

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 IE Uninitialized Memory Corruption Vulnerability (MS08-045)

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 IE uninitialized memory corruption vulnerability (MS08-045)

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 Strict Compliance protection group.
3. Click Invalid HTTP server status reply code (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 entry will be logged:

Alert Name: www2_compliance
Description: invalid_server_reply_code_alert