Check Point Advisories

Microsoft .NET Framework x86 JIT Optimizer Stack Corruption (MS11-028; CVE-2010-3958)

Vulnerability
Protection

Check Point Reference:	CPAI-2011-227
Date Published:	5 Apr 2011
Severity:	Critical
Last Updated:	Tuesday 05 April, 2011
Source:
Industry Reference:	CVE-2010-3958
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70, R65
Who is Vulnerable?
Vulnerability Description	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 code execution vulnerability has been reported in the way that Microsoft .NET Framework x86 JIT compiler handles certain function calls. 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 product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75 / R71 / R70 / R65

In the IPS tab, click Protections and find the Microsoft .NET Framework x86 JIT Optimizer Stack Corruption (MS11-028) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

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