National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2011-0040 Detail

Current Description

The server in Microsoft Active Directory on Windows Server 2003 SP2 does not properly handle an update request for a service principal name (SPN), which allows remote attackers to cause a denial of service (authentication downgrade or outage) via a crafted request that triggers name collisions, aka "Active Directory SPN Validation Vulnerability."

Source:  MITRE
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/46145
http://www.securitytracker.com/id?1025042
http://www.vupen.com/english/advisories/2011/0319 Vendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-005
https://exchange.xforce.ibmcloud.com/vulnerabilities/64915
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12485

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:microsoft:windows_2003_server:*:sp2:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_2003_server:*:sp2:itanium:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_2003_server:*:sp2:x64:*:*:*:*:*
     Show Matching CPE(s)


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2011-0040
NVD Published Date:
02/08/2011
NVD Last Modified:
10/12/2018