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CVE-2011-0091

UnknownEPSS 5.49%

Last modified

CVE-2011-0091 is a vulnerability of currently unknown severity. Kerberos in Microsoft Windows Server 2008 R2 and Windows 7 does not prevent a session from changing from strong encryption to DES encryption, which allows man-in-the-middle attackers to spoof network traffic and obtain sensitive information via a DES downgrade, aka "Kerberos Spoofing Vulnerability.". EPSS estimates a 5.49% chance of exploitation in the next 30 days.

Description

Kerberos in Microsoft Windows Server 2008 R2 and Windows 7 does not prevent a session from changing from strong encryption to DES encryption, which allows man-in-the-middle attackers to spoof network traffic and obtain sensitive information via a DES downgrade, aka "Kerberos Spoofing Vulnerability."

Metrics

EPSS Probability
5.49%

91.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MicrosoftWindows 7All versions
MicrosoftWindows Server 2008r2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-0091?
Kerberos in Microsoft Windows Server 2008 R2 and Windows 7 does not prevent a session from changing from strong encryption to DES encryption, which allows man-in-the-middle attackers to spoof network traffic and obtain sensitive information via a DES downgrade, aka "Kerberos Spoofing Vulnerability."
How severe is CVE-2011-0091?
Severity scoring for CVE-2011-0091 is pending analysis. The EPSS model estimates a 5.49% probability of exploitation in the next 30 days.
How do I fix CVE-2011-0091?
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-2011-0091?

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

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Source: NVD / NIST