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Internet Explorer NULL Object Access Remote Code Execution (MS12-052; CVE-2012-2521)

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Check Point Reference: CPAI-2012-342
Date Published:
Severity:
Source: Microsoft Security Bulletin MS12-052
Industry Reference(s): CVE-2012-2521
Protection Provided by: Security Gateway
  • R75
  • R71
  • R70
Who is Vulnerable?
Internet Explorer 6 for Windows XP Service Pack 3
Internet Explorer 6 for Windows XP Professional x64 Edition Service Pack 2
Internet Explorer 6 for Windows Server 2003 Service Pack 2
Internet Explorer 6 for Windows Server 2003 x64 Edition Service Pack 2
Internet Explorer 6 for Windows Server 2003 with SP2 for Itanium-based Systems
Internet Explorer 7
Internet Explorer 7 for Windows XP Service Pack 3
Internet Explorer 7 for Windows XP Professional x64 Edition Service Pack 2
Internet Explorer 7 for Windows Server 2003 Service Pack 2
Internet Explorer 7 for Windows Server 2003 x64 Edition Service Pack 2
Internet Explorer 7 for Windows Server 2003 with SP2 for Itanium-based Systems
Internet Explorer 7 in Windows Vista Service Pack 2
Internet Explorer 7 in Windows Vista x64 Edition Service Pack 2
Internet Explorer 7 in Windows Server 2008 for 32-bit Systems Service Pack 2
Internet Explorer 7 in Windows Server 2008 for x64-based Systems Service Pack 2
Internet Explorer 7 Windows Server 2008 for Itanium-based Systems Service Pack 2
Internet Explorer 8
Internet Explorer 8 for Windows XP Service Pack 3
Internet Explorer 8 for Windows XP Professional x64 Edition Service Pack 2
Internet Explorer 8 for Windows Server 2003 Service Pack 2
Internet Explorer 8 for Windows Server 2003 x64 Edition Service Pack 2
Internet Explorer 8 in Windows Vista Service Pack 2
Internet Explorer 8 in Windows Vista x64 Edition Service Pack 2
Internet Explorer 8 in Windows Server 2008 for 32-bit Systems Service Pack 2
Internet Explorer 8 in Windows Server 2008 for x64-based Systems Service Pack 2
Internet Explorer 8 in Windows 7 for 32-bit Systems
Internet Explorer 8 in Windows 7 for 32-bit Systems Service Pack 1
Internet Explorer 8 in Windows 7 for x64-based Systems
Internet Explorer 8 in Windows 7 for x64-based Systems Service Pack 1
Internet Explorer 8 in Windows Server 2008 R2 for x64-based Systems
Internet Explorer 8 in Windows Server 2008 R2 for x64-based Systems Service Pack 1
Internet Explorer 8 in Windows Server 2008 R2 for Itanium-based Systems
Internet Explorer 8 in Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
Internet Explorer 9
Internet Explorer 9 for Windows Vista Service Pack 2
Internet Explorer 9 for Windows Vista x64 Edition Service Pack 2
Internet Explorer 9 for Windows Server 2008 for 32-bit Systems Service Pack 2
Internet Explorer 9 for Windows Server 2008 for x64-based Systems Service Pack 2
Internet Explorer 9 for Windows 7 for 32-bit Systems
Internet Explorer 9 for Windows 7 for 32-bit Systems Service Pack 1
Internet Explorer 9 for Windows 7 for x64-based Systems
Internet Explorer 9 for Windows 7 for x64-based Systems Service Pack 1
Internet Explorer 9 for Windows Server 2008 R2 for x64-based Systems
Internet Explorer 9 for Windows Server 2008 R2 for x64-based Systems Service Pack 1
Vulnerability Description
A remote code execution vulnerability has been reported in Internet Explorer.
Update/Patch Available
Apply patches from: MS12-052
Vulnerability Details
The vulnerability is due to an error in the way Internet Explorer attempts to access an object that has been deleted. A remote attacker can exploit this issue by enticing a target user to open a specially crafted web page. Successful exploitation could allow an attacker to execute arbitrary code in the security context of the logged-on user.

Protection Overview
This protection will detect and block attempts to open a malicious web page.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, 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.

Security Gateway R75 / R71 / R70

How Can I Protect My Network?

  1. In the IPS tab, click Protections and find the Internet Explorer NULL Object Access Remote Code Execution (MS12-052) protection using the Search tool and Edit the protection's settings.
  2. 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: Internet Explorer NULL Object Access Remote Code Execution (MS12-052)