First published: Wed Oct 12 2011(Updated: )
Microsoft .NET Framework 1.0 SP3, 1.1 SP1, 2.0 SP2, 3.5.1, and 4, and Silverlight 4 before 4.0.60831, does not properly restrict inheritance, which allows remote attackers to execute arbitrary code via (1) a crafted XAML browser application (aka XBAP), (2) a crafted ASP.NET application, (3) a crafted .NET Framework application, or (4) a crafted Silverlight application, aka ".NET Framework Class Inheritance Vulnerability."
Credit: secure@microsoft.com
Affected Software | Affected Version | How to fix |
---|---|---|
Microsoft Silverlight | =4.0.60531.0 | |
All of | ||
Microsoft .NET Framework 4 | =1.0-sp3 | |
Any of | ||
Microsoft Windows XP | =2005-sp3 | |
Microsoft Windows XP | =2005-sp3 | |
All of | ||
Microsoft .NET Framework 4 | =1.1-sp1 | |
Any of | ||
Microsoft Windows Server 2003 | =sp2 | |
Microsoft Windows Server | =sp2 | |
Microsoft Windows Server | =sp2 | |
Microsoft Windows Server | =sp2 | |
Microsoft Windows Server | =sp2 | |
Microsoft Windows Vista | =sp2 | |
Microsoft Windows XP | =sp3 | |
Microsoft Windows XP | =sp2 | |
All of | ||
Microsoft .NET Framework 4 | =2.0-sp2 | |
Any of | ||
Microsoft Windows Server 2003 | =sp2 | |
Microsoft Windows Server | =sp2 | |
Microsoft Windows Server | =sp2 | |
Microsoft Windows Server | =sp2 | |
Microsoft Windows Server | =sp2 | |
Microsoft Windows Vista | =sp2 | |
Microsoft Windows XP | =sp3 | |
Microsoft Windows XP | =sp2 | |
All of | ||
Microsoft .NET Framework 4 | =3.5.1 | |
Any of | ||
Microsoft Windows 7 | ||
Microsoft Windows 7 | =sp1 | |
Microsoft Windows 7 | =sp1 | |
Microsoft Windows Server | =r2 | |
Microsoft Windows Server | =r2 | |
All of | ||
Microsoft .NET Framework 4 | =4.0 | |
Any of | ||
Microsoft Windows Server 2003 | =sp2 | |
Microsoft Windows 7 | =sp1 | |
Microsoft Windows 7 | =sp1 | |
Microsoft Windows Server | =sp2 | |
Microsoft Windows Server | =sp2 | |
Microsoft Windows Server | =sp2 | |
Microsoft Windows Server | =sp2 | |
Microsoft Windows Server | =r2 | |
Microsoft Windows Server | =r2 | |
Microsoft Windows Vista | =sp2 | |
Microsoft Windows XP | =sp3 | |
Microsoft Windows XP | =sp2 | |
Microsoft .NET Framework 4 | =1.0-sp3 | |
Microsoft Windows XP | =2005-sp3 | |
Microsoft Windows XP | =2005-sp3 | |
Microsoft .NET Framework 4 | =1.1-sp1 | |
Microsoft Windows Server 2003 | =sp2 | |
Microsoft Windows Server | =sp2 | |
Microsoft Windows Server | =sp2 | |
Microsoft Windows Server | =sp2 | |
Microsoft Windows Server | =sp2 | |
Microsoft Windows Vista | =sp2 | |
Microsoft Windows Vista | =sp2 | |
Microsoft Windows XP | =sp3 | |
Microsoft Windows XP | =sp2 | |
Microsoft .NET Framework 4 | =2.0-sp2 | |
Microsoft .NET Framework 4 | =3.5.1 | |
Microsoft Windows 7 | ||
Microsoft Windows 7 | =sp1 | |
Microsoft Windows 7 | =sp1 | |
Microsoft Windows Server | =r2 | |
Microsoft Windows Server | =r2 | |
Microsoft .NET Framework 4 | =4.0 |
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CVE-2011-1253 has a severity rating of Critical as it allows remote code execution.
To fix CVE-2011-1253, install the security update provided by Microsoft for the affected .NET Framework and Silverlight versions.
CVE-2011-1253 affects Microsoft .NET Framework versions 1.0 SP3, 1.1 SP1, 2.0 SP2, 3.5.1, and 4, along with Silverlight 4 versions before 4.0.60831.
Exploitation of CVE-2011-1253 could allow an attacker to execute arbitrary code on the affected systems.
While Microsoft recommends applying the security update, disabling XAML browser applications can serve as a temporary workaround.