CVE-2011-3416

UnknownEPSS 45.58%

Last modified

CVE-2011-3416 is a vulnerability of currently unknown severity. 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.". EPSS estimates a 45.58% chance of exploitation in the next 30 days.

Description

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."

Metrics

EPSS Probability
45.58%

98.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
MicrosoftWindows 7All versions
MicrosoftWindows Server 2003All versionsSp2
MicrosoftWindows Server 2008All versionsR2
MicrosoftWindows Server 2008r2
MicrosoftWindows VistaAll versionsSp2
MicrosoftWindows XpAll versionsSp2
MicrosoftWindows Xpsp3Unknown

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-3416?
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."
How severe is CVE-2011-3416?
Severity scoring for CVE-2011-3416 is pending analysis. The EPSS model estimates a 45.58% probability of exploitation in the next 30 days.
How do I fix CVE-2011-3416?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-3416?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST