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CVE-2011-0040

nvd nist
Published: Feb 9, 2011Modified: Apr 29, 2026

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5.0
Vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Exploitability: 10.0 / Impact: 2.9
Source: NVD

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."

Affected (3)

Microsoft
1 product
Windows 2003 Server
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Microsoft
Windows 2003 Server
All versions
Windows 2003 Server
All versions
Windows 2003 Server
All versions

Related CWEs

CWE-20
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

References (16)

Source: secure@microsoft.com
Source: secure@microsoft.com
Vendor Advisory
Source: secure@microsoft.com
Source: secure@microsoft.com
Source: secure@microsoft.com
Vendor Advisory
Source: secure@microsoft.com
Source: secure@microsoft.com
Source: secure@microsoft.com
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.