Microsoft Windows Library Loader untrusted search path

CVSS Meta Temp Score
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CTI Interest Score
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9.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Microsoft Windows. Affected is an unknown function of the component Library Loader. The manipulation results in untrusted search path. This vulnerability is known as CVE-2011-1991. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as very critical has been found in Microsoft Windows (Operating System) (version unknown). Affected is an unknown function of the component Library Loader. The manipulation with an unknown input leads to a untrusted search path vulnerability. CWE is classifying the issue as CWE-426. The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Multiple untrusted search path vulnerabilities in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allow local users to gain privileges via a Trojan horse DLL in the current working directory, as demonstrated by a directory that contains a .doc, .rtf, or .txt file, related to (1) deskpan.dll in the Display Panning CPL Extension, (2) EAPHost Authenticator Service, (3) Folder Redirection, (4) HyperTerminal, (5) the Japanese Input Method Editor (IME), and (6) Microsoft Management Console (MMC), aka "Windows Components Insecure Library Loading Vulnerability."

The weakness was published 09/13/2011 by Mitja Kolsek with ACROS Security as advisory_identifier (Website). The advisory is available at blog.acrossecurity.com. This vulnerability is traded as CVE-2011-1991 since 05/09/2011. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/12/2025). This vulnerability is assigned to T1574 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 56174 (MS11-071: Vulnerability in Windows Components Could Allow Remote Code Execution (2570947)), 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 90740 (Microsoft Windows Components Remote Code Execution Vulnerability (MS11-071)).

Upgrading eliminates this vulnerability. Applying the patch MS11-071 is able to eliminate this problem. The bugfix is ready for download at technet.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. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11680.

The vulnerability is also documented in the databases at Tenable (56174), SecurityFocus (BID 47741†), Secunia (SA45910†) and Vulnerability Center (SBV-33207†). Similar entries are available at VDB-499, VDB-500, VDB-501 and VDB-12030. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.4

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

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Exploitinginfo

Class: Untrusted search path
CWE: CWE-426
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: 56174
Nessus Name: MS11-071: Vulnerability in Windows Components Could Allow Remote Code Execution (2570947)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 901205
OpenVAS Name: Microsoft Windows Components Remote Code Execution Vulnerabilities (2570947)
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: MS11-071
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

05/06/2011 🔍
05/09/2011 +3 days 🔍
09/13/2011 +127 days 🔍
09/13/2011 +0 days 🔍
09/13/2011 +0 days 🔍
09/13/2011 +0 days 🔍
09/14/2011 +1 days 🔍
09/14/2011 +0 days 🔍
09/15/2011 +1 days 🔍
09/16/2011 +1 days 🔍
01/12/2025 +4867 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: advisory_identifier
Researcher: Mitja Kolsek
Organization: ACROS Security
Status: Confirmed

CVE: CVE-2011-1991 (🔍)
GCVE (CVE): GCVE-0-2011-1991
GCVE (VulDB): GCVE-100-4410

OVAL: 🔍
IAVM: 🔍

SecurityFocus: 47741 - Multiple Microsoft Products DLL Loading Arbitrary Code Execution Vulnerability
Secunia: 45910 - Microsoft Windows Insecure Library Loading Vulnerability, Highly Critical
Vulnerability Center: 33207 - [MS11-071] Multiple Microsoft Windows Components DLL Loading Vulnerability Allows Code Execution, Critical

See also: 🔍

Entryinfo

Created: 09/16/2011 02:00
Updated: 01/12/2025 22:56
Changes: 09/16/2011 02:00 (66), 04/01/2017 10:23 (29), 03/19/2021 14:52 (3), 01/12/2025 22:56 (18)
Complete: 🔍
Cache ID: 216:B8C:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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