Microsoft Windows input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows. It has been classified as problematic. This affects an unknown function. This manipulation causes input validation. This vulnerability appears as CVE-2011-0040. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows (Operating System) (unknown version). It has been declared as problematic. Affected by this vulnerability is an unknown code block. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. 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. As an impact it is known to affect availability. The summary by CVE is:

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."

The weakness was presented 02/08/2011 with Microsoft as MS11-005 as confirmed bulletin (Technet). It is possible to read the advisory at microsoft.com. This vulnerability is known as CVE-2011-0040. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 51905 (MS11-005: Vulnerability in Active Directory Could Allow Denial of Service (2478953)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90683 (Microsoft Windows Active Directory Denial of Service Vulnerability (MS11-005)).

Applying the patch MS11-005 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 10811.

The vulnerability is also documented in the databases at X-Force (64916), Tenable (51905), SecurityFocus (BID 46145†), OSVDB (70825†) and SecurityTracker (ID 1025042†). See VDB-56387, VDB-56386, VDB-56385 and VDB-56384 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 51905
Nessus Name: MS11-005: Vulnerability in Active Directory Could Allow Denial of Service (2478953)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 902290
OpenVAS Name: Microsoft Windows Active Directory SPN Denial of Service (2478953)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: MS11-005
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍

Timelineinfo

12/10/2010 🔍
02/08/2011 +60 days 🔍
02/08/2011 +0 days 🔍
02/08/2011 +0 days 🔍
02/08/2011 +0 days 🔍
02/08/2011 +0 days 🔍
02/08/2011 +0 days 🔍
02/08/2011 +0 days 🔍
02/09/2011 +0 days 🔍
03/20/2015 +1500 days 🔍
01/19/2025 +3593 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS11-005
Organization: Microsoft
Status: Confirmed

CVE: CVE-2011-0040 (🔍)
GCVE (CVE): GCVE-0-2011-0040
GCVE (VulDB): GCVE-100-56383

OVAL: 🔍
IAVM: 🔍

X-Force: 64916
SecurityFocus: 46145 - Microsoft Active Directory Service Principal Names (CVE-2011-0040) Denial Of Service Vulnerability
Secunia: 43215
OSVDB: 70825 - Microsoft Windows Server Active Directory Server Principal Name (SPN) Handling Remote DoS
SecurityTracker: 1025042
Vulnerability Center: 29647 - [MS11-005] Microsoft Active Directory on Microsoft Windows Server 2003 Remote DoS Vulnerability, High

See also: 🔍

Entryinfo

Created: 03/20/2015 16:16
Updated: 01/19/2025 23:21
Changes: 03/20/2015 16:16 (70), 03/15/2017 12:29 (13), 10/14/2021 01:43 (4), 10/14/2021 01:51 (1), 01/06/2025 00:16 (15), 01/19/2025 23:21 (2)
Complete: 🔍
Cache ID: 216::103

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