Update Protection against Multiple Microsoft Internet Explorer Remote Code Execution Vulnerabilities (MS07-027)
| Check Point Reference: | CPAI-2007-066 | |
| Date Published: | ||
| Severity: | ||
| Source: | Microsoft Security Bulletin MS07-027 | |
| Industry Reference(s): | CVE-2007-0942 CVE-2007-0944 CVE-2007-0945 CVE-2007-2221 |
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| Protection Provided by: |
VPN-1
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| Who is Vulnerable? Microsoft Windows 2000 SP4 Microsoft Windows XP SP2 Microsoft Windows XP Professional x64 Edition Windows XP Professional x64 Edition SP2 Microsoft Windows Server 2003 SP1 Microsoft Windows Server 2003 SP2 Microsoft Windows Server 2003 with SP1 (Itanium) Microsoft Windows Server 2003 with SP2 (Itanium) Microsoft Windows Server 2003 x64 Edition SP1 Microsoft Windows Server 2003 x64 Edition SP2 Windows Vista Windows Vista x64 Edition | ||
| Vulnerability Description Multiple remote code execution vulnerabilities have been reported in Microsoft Internet Explorer. A remote attacker could exploit these issues by convincing a user to visit a specially crafted HTML documents or open a malicious web page. Successful exploitation could result in remote code execution on the target system once the malicious page is loaded. |
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Update/Patch Available Apply patches: Microsoft Security Bulletin MS07-027 |
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Vulnerability Details CVE-2007-0942: The vulnerability is due to a memory corruption error in certain COM objects that are not intended to be instantiated in Microsoft Internet Explorer. The flaw occurs when instantiating the vulnerable COM objects as ActiveX Controls. To trigger the vulnerability, an attacker can create a malicious Web page that initiates a vulnerable COM Object as an ActiveX control. CVE-2007-0944: The vulnerability is due to a memory corruption error in Microsoft Internet Explorer when accessing a object when it is not initiated or already deleted. To trigger this flaw, an attacker can specially craft a malicious Web page that exploits this vulnerability. CVE-2007-0945: The vulnerability is due to a memory corruption error in Microsoft Internet Explorer that fails to properly handle a property method. To trigger this flaw, an attacker can specially craft a malicious Web page that forces Internet Explorer to call the property method. CVE-2007-2221: The vulnerability is due to an error in the 'mdsauth.dll' COM object within Microsoft Media Server in the Microsoft Internet Explorer. To trigger this flaw, an attacker can specially craft a malicious Web page that allows arbitrary file rewrite. Successful exploitation of these issues allows execution of arbitrary code on the vulnerable system. |
Protection Overview
By enabling this protection, SmartDefense will detect and block Various Microsoft Internet Explorer remote code execution vulnerabilities. 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.
Since the protections offered in this advisory may degrade performance and block access to legitimate files, Check Point users are advised to use these protections as a workaround till all systems are patched.
To configure the defense, select your product from the list below and follow the related protection steps.
Additional Information
The Update released on May 30, 2007 includes the following protections:
Microsoft CAPICOM Vulnerability (MS07-028) - CPAI-2007-064
IBM Lotus Domino Vulnerability (CPAI-2007-065)
Multiple Microsoft Internet Explorer Vulnerabilities (MS07-027) - CPAI-2007-066
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 Various MS IE Remote Code Execution Vulnerabilities (MS07-027).
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: Various MS IE remote code execution vulnerabilities (MS07-027)
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 Various MS IE Remote Code Execution Vulnerabilities (MS07-027)
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: Various MS IE remote code execution vulnerabilities (MS07-027)
VPN-1 NG with Application Intelligence R55
How Can I Protect My Network? Block Various MS IE Remote Code Execution Vulnerabilities (MS07-027)
1. In the SmartDefense tree, click Application Intelligence > Web > HTTP Client Protections > Microsoft Internet Explorer Vulnerabilities.
2. Select the following pattern:
3. Install security policy on all modules.
How Do I Know if My Network is Under Attack?
Rule #99887 will appear on the SmartView Tracker.
VPN-1 VSX NGX
How Can I Protect My Network? Block Various MS IE Remote Code Execution Vulnerabilities (MS07-027)
1. In the SmartDefense tree, click Application Intelligence > Web > HTTP Client Protections > Microsoft Internet Explorer Vulnerabilities.
2. Select the following pattern:
3. Install security policy on all modules.
How Do I Know if My Network is Under Attack?
Rule #99887 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 Various MS IE Remote Code Execution Vulnerabilities (MS07-027)
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: Various MS IE remote code execution vulnerabilities (MS07-027)
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 Various MS IE Remote Code Execution Vulnerabilities (MS07-027)
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: Various MS IE remote code execution vulnerabilities (MS07-027)