CVE-2011-0091

Published: Feb 10, 2011Modified: Apr 29, 2026

6.4

Vector

AV:N/AC:L/Au:N/C:P/I:P/A:N

Exploitability: 10.0 / Impact: 4.9

Source: NVD

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."

Affected (3)

Products: Microsoft: Windows 7, Windows Server 2008

2 products

Windows Server 2008

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Microsoft Windows 7	All versions
Microsoft Windows Server 2008	Version r2
Microsoft Windows Server 2008	Version r2

Related CWEs

Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

References (18)

http://osvdb.org/70835

Source: secure@microsoft.com

http://secunia.com/advisories/43257

Source: secure@microsoft.com

http://support.avaya.com/css/P8/documents/100127250

Source: secure@microsoft.com

http://www.securityfocus.com/bid/46140

Source: secure@microsoft.com

http://www.securitytracker.com/id?1025048

Source: secure@microsoft.com

http://www.vupen.com/english/advisories/2011/0326

Source: secure@microsoft.com

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-013

Source: secure@microsoft.com

https://exchange.xforce.ibmcloud.com/vulnerabilities/64901

Source: secure@microsoft.com

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12498

Source: secure@microsoft.com

http://osvdb.org/70835

Source: af854a3a-2127-422b-91ae-364da2661108

http://secunia.com/advisories/43257

Source: af854a3a-2127-422b-91ae-364da2661108

http://support.avaya.com/css/P8/documents/100127250

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.securityfocus.com/bid/46140

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.securitytracker.com/id?1025048

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.vupen.com/english/advisories/2011/0326

Source: af854a3a-2127-422b-91ae-364da2661108

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-013

Source: af854a3a-2127-422b-91ae-364da2661108

https://exchange.xforce.ibmcloud.com/vulnerabilities/64901

Source: af854a3a-2127-422b-91ae-364da2661108

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12498

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.