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Update Protection against Microsoft .NET Framework x86 JIT Optimizer Stack Corruption Vulnerability (MS11-028)

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Check Point Reference: CPAI-2011-227
Date Published:
Severity:
Source: Microsoft Security Bulletin MS11-028
Industry Reference(s): CVE-2010-3958
Protection Provided by: Security Gateway
  • R75
  • R71
  • R70
VPN-1
  • NGX R65
VSX
  • NGX R65
Who is Vulnerable?
Microsoft .NET Framework 2.0 SP2 and Microsoft .NET Framework 3.5 SP1 when installed on:
Windows XP SP3
Windows XP Professional x64 Edition SP2
Windows Server 2003 SP2
Windows Server 2003 x64 Edition SP2
Windows Server 2003 with SP2 (Itanium)
Windows Vista SP1
Windows Vista SP2
Windows Vista x64 Edition SP1
Windows Vista x64 Edition SP2
Windows Server 2008 for 32-bit Systems
Windows Server 2008 for 32-bit Systems SP2
Windows Server 2008 for x64-based Systems
Windows Server 2008 for x64-based Systems SP2
Windows Server 2008 (Itanium)
Windows Server 2008 (Itanium) SP2

Microsoft .NET Framework 3.5.1 on:
Windows 7 for 32-bit Systems
Windows 7 for x64-based Systems
Windows Server 2008 R2 for x64-based Systems
Windows Server 2008 R2 (Itanium)

Microsoft .NET Framework 4.0 when installed on:
Windows XP SP3
Windows XP Professional x64 Edition SP2
Windows Server 2003 SP2
Windows Server 2003 x64 Edition SP2
Windows Server 2003 with SP2 (Itanium)
Windows Vista SP1
Windows Vista SP2
Windows Vista x64 Edition SP1
Windows Vista x64 Edition SP2
Windows Server 2008 for 32-bit Systems
Windows Server 2008 for 32-bit Systems SP2
Windows Server 2008 for x64-based Systems
Windows Server 2008 for x64-based Systems SP2
Windows Server 2008 (Itanium)
Windows Server 2008 (Itanium) SP2
Windows 7 for 32-bit Systems
Windows 7 for x64-based Systems
Windows Server 2008 R2 for x64-based Systems
Windows Server 2008 R2 (Itanium)

Vulnerability Description
A remote code execution vulnerability has been reported in the way that Microsoft .NET Framework x86 JIT compiler handles certain function calls. The .NET Framework JIT compiler is a .NET Framework runtime component which compiles Microsoft Intermediate Language (MSIL) against the Common Language Runtime (CLR) on demand at application run time, when the contents of an assembly are loaded and executed. A remote attacker may exploit this vulnerability to take complete control of an affected system.
Update/Patch Available
Apply patches:
Microsoft Security Bulletin MS11-028
Vulnerability Details
This vulnerability is caused by the x86 JIT compiler within the .NET Framework that incorrectly compiles certain types of function calls. A remote attacker may exploit this issue via a malicious .NET application. Successful exploitation of this vulnerability could allow the attacker to take complete control of an affected system.

Protection Overview
This protection will detect and block attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway/VPN-1 product to the latest IPS/SmartDefense update. For information on how to update IPS/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.

Security Gateway: R75

How Can I Protect My Network?
1. In the IPS tab, click Protections > By Protocol > IPS Software Blade > Application Intelligence > Content Protection.
2. In the right pane, double-click the Microsoft .NET Framework x86 JIT Optimizer Stack Corruption (MS11-028) protection.
3. In the Protection Details window, click on Edit. Choose the protection's Action (Override IPS Policy with: Prevent/Detect), and apply Additional Settings. 
4. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:

Attack Name: Content Protection Violation
Attack Information: Microsoft .NET Framework x86 JIT optimizer stack corruption (MS11-028)

Security Gateway: R70/R71

How Can I Protect My Network?
1. In the IPS tab, click Protections > By Protocol > Application Intelligence > Content Protection.
2. In the right pane, double-click the Microsoft .NET Framework x86 JIT Optimizer Stack Corruption (MS11-028) protection.
3. In the Protection Details window, click on Edit. Choose the protection's Action (Override IPS Policy with: Prevent/Detect), and apply Additional Settings. 
4. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:

Attack Name: Content Protection Violation
Attack Information: Microsoft .NET Framework x86 JIT optimizer stack corruption (MS11-028)

VPN-1 NGX R65 & VSX NGX R65

How Can I Protect My Network?
1. In the SmartDefense tab, click Application Intelligence > Content Protection.
2. Select the following:

Microsoft .NET Framework x86 JIT Optimizer Stack Corruption (MS11-028)

3. In the configuration pane, under Settings > Mode, check Active.
4. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:

Attack Name: Content Protection Violation
Attack Information: Microsoft .NET Framework x86 JIT optimizer stack corruption (MS11-028)