Microsoft Windows Server 2003/XP LSASS Authentication Request improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Microsoft Windows Server 2003/XP. The affected element is an unknown function of the component LSASS. The manipulation as part of Authentication Request results in improper authentication. This vulnerability is identified as CVE-2011-0039. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Microsoft Windows Server 2003/XP (Operating System). Affected is an unknown code block of the component LSASS. The manipulation as part of a Authentication Request leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The Local Security Authority Subsystem Service (LSASS) in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly process authentication requests, which allows local users to gain privileges via a request with a crafted length, aka "LSASS Length Validation Vulnerability."

The weakness was released 02/08/2011 by Jorge Moura with Primavera BSS as MS11-014 as confirmed bulletin (Technet). The advisory is shared for download at microsoft.com. This vulnerability is traded as CVE-2011-0039 since 12/10/2010. Access to the local network is required for this attack. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 51914 (MS11-014: Vulnerability in Local Security Authority Subsystem Service Could Allow Local Elevation of Privilege (2478960)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90684 (Microsoft Windows Local Security Authority Subsystem Service Local Elevation of Privilege Vulnerability (MS11-014)).

Upgrading eliminates this vulnerability. Applying the patch MS11-014 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (64973), Tenable (51914), SecurityFocus (BID 46152†), Secunia (SA43253†) and SecurityTracker (ID 1025049†). Entries connected to this vulnerability are available at VDB-4298, VDB-4297, VDB-4295 and VDB-4294. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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  • end of life (old version)

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 51914
Nessus Name: MS11-014: Vulnerability in Local Security Authority Subsystem Service Could Allow Local Elevation of Privilege (2478960)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 902289
OpenVAS Name: Microsoft Windows LSASS Privilege Escalation Vulnerability (2478960)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: MS11-014

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 🔍
02/09/2011 +1 days 🔍
02/16/2011 +7 days 🔍
01/19/2025 +5086 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS11-014
Researcher: Jorge Moura
Organization: Primavera BSS
Status: Confirmed

CVE: CVE-2011-0039 (🔍)
GCVE (CVE): GCVE-0-2011-0039
GCVE (VulDB): GCVE-100-4296

OVAL: 🔍
IAVM: 🔍

X-Force: 64973
SecurityFocus: 46152 - Microsoft Windows LSASS Length Validation Local Privilege Escalation Vulnerability
Secunia: 43253 - Microsoft Windows LSASS Authentication Request Privilege Escalation Vulnerability, Less Critical
SecurityTracker: 1025049
Vulnerability Center: 29641 - [MS11-014 ] Microsoft Windows XP and Server 2003 Local Privilege Escalation Vulnerability, High

See also: 🔍

Entryinfo

Created: 02/16/2011 11:30
Updated: 01/19/2025 23:21
Changes: 02/16/2011 11:30 (84), 03/15/2017 12:27 (8), 03/18/2021 19:56 (3), 01/06/2025 00:16 (15), 01/19/2025 23:21 (2)
Complete: 🔍
Cache ID: 216:D41:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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