Microsoft Silverlight & .NET Framework Inheritance Restriction Remote Code Execution Vulnerability

Bugtraq ID:	49999
Class:	Unknown
CVE:	CVE-2011-1253
Remote:	Yes
Local:	No
Published:	Oct 11 2011 12:00AM
Updated:	Oct 13 2011 02:50AM
Credit:	anonymous working with Beyond Security's SecuriTeam Secure Disclosure
Vulnerable:	Microsoft Silverlight 4.0 Microsoft .NET Framework 3.5.1 Microsoft .NET Framework 4.0 Beta1 Microsoft .NET Framework 4.0 beta 2 Microsoft .NET Framework 4.0 Microsoft .NET Framework 3.5 SP1 Microsoft .NET Framework 3.5 Microsoft .NET Framework 3.0 Microsoft .NET Framework 2.0 SP2 Microsoft .NET Framework 2.0 SP1 Microsoft .NET Framework 2.0 BETA Microsoft .NET Framework 2.0 Microsoft .NET Framework 1.1 SP3 Microsoft .NET Framework 1.1 SP2 Microsoft .NET Framework 1.1 SP1 Microsoft .NET Framework 1.1 Microsoft .NET Framework 1.0 SP3 Microsoft .NET Framework 1.0 SP2 Microsoft .NET Framework 1.0 SP1 Microsoft .NET Framework 1.0 Avaya Messaging Application Server 5.2 Avaya Messaging Application Server 5 Avaya Messaging Application Server 4 Avaya Meeting Exchange - Webportal 0 Avaya Meeting Exchange - Web Conferencing Server 0 Avaya Meeting Exchange - Recording Server 0 Avaya Meeting Exchange - Client Registration Server 0 Avaya Meeting Exchange 5.0 .0.52 Avaya Meeting Exchange 5.2 SP2 Avaya Meeting Exchange 5.2 SP1 Avaya Meeting Exchange 5.2 Avaya Meeting Exchange 5.1 SP1 Avaya Meeting Exchange 5.1 Avaya Meeting Exchange 5.0 SP2 Avaya Meeting Exchange 5.0 SP1 Avaya Meeting Exchange 5.0 Avaya Communication Server 1000 Telephony Manager 4.0 Avaya Communication Server 1000 Telephony Manager 3.0 Avaya CallPilot 5.0 Avaya CallPilot 4.0 Avaya Aura Conferencing 6.0 Standard
Not Vulnerable:

Microsoft Silverlight & .NET Framework Inheritance Restriction Remote Code Execution Vulnerability

Microsoft Silverlight and Microsoft .NET Framework are prone to a remote code-execution vulnerability.

Successful exploits will allow an attacker to execute arbitrary code within the context of the affected application. Failed exploit attempts will likely result in a denial-of-service condition.

Microsoft Silverlight & .NET Framework Inheritance Restriction Remote Code Execution Vulnerability

Currently we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Microsoft Silverlight & .NET Framework Inheritance Restriction Remote Code Execution Vulnerability

Solution:
Vendor updates are available. Please see the references for more information.


Microsoft .NET Framework 2.0 SP2

• Microsoft Security Update for Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2003 and Windows X
  http://www.microsoft.com/downloads/details.aspx?familyid=719b3da5-52ca -4d56-a2c5-69711039e59d


• Microsoft Security Update for Microsoft .NET Framework 2.0 Service Pack 2 on Windows Vista Service Pack 2 and
  http://www.microsoft.com/downloads/details.aspx?familyid=7c27128d-eaf9 -4416-b8b1-9edab9102feb

Microsoft .NET Framework 4.0

• Microsoft Security Update for Microsoft .NET Framework 4
  http://www.microsoft.com/downloads/details.aspx?familyid=770e7b58-6544 -4f59-9893-b3eadf6d6c8a

Microsoft .NET Framework 1.1 SP1

• Microsoft Security Update for Microsoft .NET Framework 1.1 Service Pack 1 on Windows Server 2003 Service Pack
  http://www.microsoft.com/downloads/details.aspx?familyid=b968b0bd-577b -4ea2-a192-a80fe7c20791


• Microsoft Security Update for Microsoft .NET Framework 1.1 Service Pack 1 on Windows XP, Windows Server 2003 (
  http://www.microsoft.com/downloads/details.aspx?familyid=6100e577-deb5 -4395-b851-e19e0ca79507

Microsoft .NET Framework 1.0 SP3

• Microsoft Security Update for Microsoft .NET Framework 1.0 Service Pack 3 on Windows XP Service Pack 3 Tablet
  http://www.microsoft.com/downloads/details.aspx?familyid=a54a7ad5-0504 -4cc6-9eca-ba9f31c35a17

Microsoft .NET Framework 3.5 SP1

• Microsoft Security Update for Microsoft .NET Framework 3.5.1 on Windows 7 and Windows Server 2008 R2
  http://www.microsoft.com/downloads/details.aspx?familyid=81be7ff1-3ba2 -430c-9edf-619cc246daf2


• Microsoft Security Update for Microsoft .NET Framework 3.5.1 on Windows 7 Service Pack 1 and Windows Server 20
  http://www.microsoft.com/downloads/details.aspx?familyid=98403988-7438 -4260-95b5-a4796dbe0618

Microsoft Silverlight 4.0

• Microsoft Security Update for Microsoft Silverlight (KB2617986)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=27 703

Microsoft Silverlight & .NET Framework Inheritance Restriction Remote Code Execution Vulnerability

References:

• .NET Framework Homepage (Microsoft)
  
• Microsoft Homepage (Microsoft)
  
• Silverlight Homepage (Microsoft)
  
• ASA-2011-304 MS11-078 Vulnerability in .NET Framework and Microsoft Silverlight (Avaya)
  
• Microsoft Security Bulletin MS11-078 (Microsoft)