Intrusion Prevention

MS.DotNet.Silverlight.Framework.MemberwiseClone.Code.Execution

Description

This indicates an attack attempt to exploit a Remote Code Execution vulnerability in Microsoft .NET Framework and the Silverlight Framework.
The vulnerability is due to unrestricted access to a public class. As a result, a remote attacker can exploit this to execute arbitrary code within the context of the application

Affected Products

Windows XP Service Pack 3
Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP2 for Itanium-based Systems
Windows Vista Service Pack 2
Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for Itanium-based Systems Service Pack 2
Windows 7 for 32-bit Systems
Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems
Windows 7 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for Itanium-based Systems
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1

Impact

System Compromise: Remote attackers can gain control of vulnerable systems.

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
http://technet.microsoft.com/en-us/security/bulletin/MS12-016

CVE References

CVE-2012-0014