Update Protection against Microsoft Internet Explorer Memory Corruption Vulnerability (MS06-072)
| Check Point Reference: | CPAI-2007-001 | |
| Date Published: | ||
| Severity: | ||
| Last Updated: | ||
| Source: | Microsoft Security Bulletin MS06-072 | |
| Industry Reference(s): | CVE-2006-5579 | |
| Protection Provided by: |
VPN-1
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| Who is Vulnerable? Microsoft Internet Explorer 5.01 SP4 on Windows 2000 SP4 Microsoft Internet Explorer 6 SP1 on Windows 2000 SP4 Microsoft Internet Explorer 6 for Windows XP SP2 Microsoft Internet Explorer 6 for Windows XP Professional x64 Edition Microsoft Internet Explorer 6 for Windows Server 2003 Microsoft Internet Explorer 6 for Windows Server 2003 SP1 Microsoft Internet Explorer 6 for Windows Server 2003 (Itanium) Microsoft Internet Explorer 6 for Windows Server 2003 with SP1 (Itanium) Microsoft Internet Explorer 6 for Windows Server 2003 x64 Edition | ||
| Vulnerability Description Microsoft Internet Explorer (IE) contains a remote code execution vulnerability. By convincing a user to visit a specially crafted Web page, a remote attacker may trigger this vulnerability to deny service from legitimate users (by causing the victim's Web browser to crash) or execute arbitrary code on an affected system. |
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Update/Patch Available Apply patches: Microsoft Security Bulletin MS06-072 |
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Vulnerability Details The vulnerability is due to a memory corruption error in Internet Explorer when handling script errors while accessing previously freed memory. An attacker can trigger this flaw by convincing a user to view a specially crafted HTML document that contains malicious JavaScript that triggers certain script errors simultaneously. Successful exploitation could allow execution of arbitrary code once the malicious page is loaded. |
Protection Overview
The update protects against this vulnerability by blocking the malicious JavaScript. 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.
Additional Information
The Update released on January 9, 2007 includes the following protections:
Microsoft Internet Explorer Memory Corruption Vulnerability (MS06-072) - CPAI-2007-001
Microsoft Internet Explorer TIF Folder Vulnerability (MS06-072) - CPAI-2007-002
Microsoft Outlook Express Windows Address Book Vulnerability (MS06-076) - CPAI-2007-003
Microsoft Windows Media Player Code Execution Vulnerabilities (MS06-078) - CPAI-2007-004
Malformed IMAP Commands Vulnerabilities (SBP-2007-01)
Blocking Syslog-Related Vulnerabilities (SBP-2007-02)
VPN-1 NGX R62
How Can I Protect My Network?
1. In the SmartDefense tab, click Web Intelligence > HTTP Client Protections > Microsoft Internet Explorer Vulnerabilities > Block Script Error Memory Corruption (MS06-072).
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: Script error memory corruption (MS06-072)
VPN-1 NGX R61, R60, VPN-1 NG with Application Intelligence R55W
How Can I Protect My Network?
1. In the Web Intelligence tree, click HTTP Client Protections > Microsoft Internet Explorer Vulnerabilities.
2. Select the following pattern:
Block Script Error Memory Corruption (MS06-072)
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 Information: Script error memory corruption (MS06-072)
VPN-1 NG with Application Intelligence R55
How Can I Protect My Network?
1. In the SmartDefense tree, click Application Intelligence > Web > HTTP Client Protections > Microsoft Internet Explorer Vulnerabilities.
2. Select the following pattern:
Block Script Error Memory Corruption (MS06-072)
3. Install security policy on all modules.
How Do I Know if My Network is Under Attack?
Rule #99845 will appear on the SmartView Tracker.
VPN-1 VSX NGX
How Can I Protect My Network?
1. In the SmartDefense tree, click Application Intelligence > Web > HTTP Client Protections > Microsoft Internet Explorer Vulnerabilities.
2. Select the following pattern:
Block Script Error Memory Corruption (MS06-072)
3. Install security policy on all modules.
How Do I Know if My Network is Under Attack?
Rule #99845 will appear on the SmartView Tracker.
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 pattern:
Block Script Error Memory Corruption (MS06-072)
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: Script error memory corruption (MS06-072)
InterSpect 2.0
How Can I Protect My Network?
1. In the SmartDefense tree, click Application Intelligence > Web > HTTP Client Protections > Microsoft Internet Explorer vulnerabilities.
2. Select the following pattern:
Block Script Error Memory Corruption (MS06-072)
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: Script error memory corruption (MS06-072)