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AUSCERT External Security Bulletin Redistribution
ESB-2014.0725
Vulnerability in .NET Framework Could Allow Elevation of
Privilege (2958732)
14 May 2014
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AusCERT Security Bulletin Summary
---------------------------------
Product: Microsoft .NET Framework
Publisher: Microsoft
Operating System: Windows Server 2003
Windows Vista
Windows Server 2008
Windows 7
Windows Server 2008 R2
Windows 8
Windows 8.1
Windows Server 2012
Windows Server 2012 R2
Impact/Access: Increased Privileges -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2014-1806
Original Bulletin:
http://technet.microsoft.com/en-us/security/bulletin/ms14-026
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Microsoft Security Bulletin - MS14-026 - Important
Vulnerability in .NET Framework Could Allow Elevation of Privilege (2958732)
Published Date: May 13, 2014
Version: 1.0
General Information
Executive Summary
This security update resolves a privately reported vulnerability in Microsoft
.NET Framework. The vulnerability could allow elevation of privilege if an
unauthenticated attacker sends specially crafted data to an affected
workstation or server that uses .NET Remoting. .NET Remoting is not widely
used by applications; only custom applications that have been specifically
designed to use .NET Remoting would expose a system to the vulnerability.
This security update is rated Important for Microsoft .NET Framework 1.1
Service Pack 1, Microsoft .NET Framework 2.0 Service Pack 2, Microsoft .NET
Framework 3.5, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4,
Microsoft .NET Framework 4.5, and Microsoft .NET Framework 4.5.1 on affected
releases of Microsoft Windows.
The security update addresses the vulnerability by helping to ensure that
.NET Framework properly enforces security controls for application memory.
Affected Software
Windows Server 2003
Windows Vista
Windows Server 2008
Windows 7
Windows Server 2008 R2
Windows 8
Windows 8.1
Windows Server 2012
Windows Server 2012 R2
Windows RT and Windows RT 8.1
Vulnerability Information
TypeFilterLevel Vulnerability – CVE-2014-1806
An elevation of privilege vulnerability exists in the way that .NET
Framework handles TypeFilterLevel checks for some malformed objects.
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