|Check Point Reference:||CPAI-2012-199|
|Date Published:||8 May 2012|
|Protection Provided by:||
|Who is Vulnerable?|| Microsoft Silverlight 4 when installed on all supported releases of Microsoft Windows clients|
Microsoft Silverlight 4 when installed on all supported releases of Microsoft Windows servers
|Vulnerability Description||A remote code execution vulnerability has been reported in Microsoft Silverlight.|
|Update/Patch Avaliable||Apply patches from here|
|Vulnerability Details||The vulnerability is due to an error in the way Microsoft Silverlight frees memory while rendering specially crafted XAML glyphs. A remote attacker can exploit this issue by enticing a target user to open a web-page that contains a specially crafted Silverlight application. Successful exploitation of this vulnerability could allow an attacker to take complete control of an affected system.|
This protection will detect and block attempts to transfer crafted XAML glyphs.
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.
- In the IPS tab, click Protections and find the Microsoft Silverlight Double-Free Remote Code Execution (MS12-034) protection using the Search tool and Edit the protection's settings.
- Install policy on all modules.
SmartView Tracker will log the following entries:
Attack Name: Web Client Enforcement Violation
Attack Information: Microsoft Silverlight Double-Free Remote Code Execution (MS12-034)