Vulnerability 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."
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 7 | - |
| Microsoft | Windows Server 2008 | r2 |
Related Weaknesses (CWE)
References
- http://osvdb.org/70835
- http://secunia.com/advisories/43257
- http://support.avaya.com/css/P8/documents/100127250
- http://www.securityfocus.com/bid/46140
- http://www.securitytracker.com/id?1025048
- http://www.vupen.com/english/advisories/2011/0326
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-01
- https://exchange.xforce.ibmcloud.com/vulnerabilities/64901
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3
- http://osvdb.org/70835
- http://secunia.com/advisories/43257
- http://support.avaya.com/css/P8/documents/100127250
- http://www.securityfocus.com/bid/46140
- http://www.securitytracker.com/id?1025048
- http://www.vupen.com/english/advisories/2011/0326
FAQ
What is CVE-2011-0091?
CVE-2011-0091 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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 ...
How severe is CVE-2011-0091?
CVE-2011-0091 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-0091?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 7, Microsoft Windows Server 2008.