First published: Fri Dec 30 2011(Updated: )
The Forms Authentication feature in the ASP.NET subsystem in Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5 SP1, 3.5.1, and 4.0 allows remote authenticated users to obtain access to arbitrary user accounts via a crafted username, aka "ASP.Net Forms Authentication Bypass Vulnerability."
Credit: secure@microsoft.com secure@microsoft.com
Affected Software | Affected Version | How to fix |
---|---|---|
Microsoft Windows 7 | ||
Microsoft Windows 7 | =sp1 | |
Microsoft Windows 7 | =sp1 | |
Microsoft Windows Server 2003 | =sp2 | |
Microsoft Windows Server 2008 Itanium | =r2 | |
Microsoft Windows Server 2008 Itanium | =sp2 | |
Microsoft Windows Server 2008 Itanium | =sp2 | |
Microsoft Windows Server 2008 Itanium | =sp2 | |
Microsoft Windows Server 2008 Itanium | =r2 | |
Microsoft Windows Vista | =sp2 | |
Microsoft Windows Vista | =sp2 | |
Microsoft Windows XP | =sp2 | |
Microsoft Windows XP | =sp3-unknown | |
Microsoft Windows Vista | =sp2 |
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CVE-2011-3416 is considered critical as it allows remote authenticated users to access arbitrary user accounts.
To fix CVE-2011-3416, apply the security update provided by Microsoft as part of MS11-100.
CVE-2011-3416 affects Microsoft .NET Framework versions 1.1 SP1, 2.0 SP2, 3.5 SP1, 3.5.1, and 4.0 on various Windows operating systems.
CVE-2011-3416 exploits a vulnerability in the Forms Authentication feature of the ASP.NET subsystem.
Yes, CVE-2011-3416 remains a risk for organizations that have not updated their vulnerable .NET Framework installations.