Microsoft Windows win32k.sys access control

CVSS Meta Temp Score
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CTI Interest Score
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4.0$0-$5k0.00

Summaryinfo

A vulnerability has been found in Microsoft Windows and classified as problematic. This affects an unknown function in the library win32k.sys. This manipulation causes access control. This vulnerability is registered as CVE-2012-0181. Furthermore, an exploit is available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability classified as problematic was found in Microsoft Windows (Operating System) (the affected version unknown). Affected by this vulnerability is an unknown part in the library win32k.sys. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, and integrity. The summary by CVE is:

win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, Windows 7 Gold and SP1, and Windows 8 Consumer Preview does not properly manage Keyboard Layout files, which allows local users to gain privileges via a crafted application, aka "Keyboard Layout File Vulnerability."

The weakness was published 05/08/2012 by Geoff McDonald, Tarjei Mandt and Nicolas Economou as MS12-034 as confirmed knowledge base article (Website) via Microsoft. The advisory is shared at technet.microsoft.com. The public release has been coordinated with Microsoft. This vulnerability is known as CVE-2012-0181 since 12/13/2011. An attack has to be approached locally. A single authentication is necessary for exploitation. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1068 for this issue.

A public exploit has been developed by Cr4sh and been published 2 weeks after the advisory. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 59042 (MS12-034: Combined Security Update for Microsoft Office, Windows, .NET Framework, and Silverlight (2681578)), 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 90803 (Microsoft Combined Security Update for Microsoft Office, Windows, .NET Framework and Silverlight (MS12-034)).

Applying the patch MS12-MAY is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (75127), Exploit-DB (18894), Tenable (59042), SecurityFocus (BID 53657†) and OSVDB (81716†). Similar entries are available at VDB-4436, VDB-5357, VDB-5358 and VDB-5359. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.0

VulDB Base Score: 4.4
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Cr4sh
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 59042
Nessus Name: MS12-034: Combined Security Update for Microsoft Office, Windows, .NET Framework, and Silverlight (2681578)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 902832
OpenVAS Name: MS Security Update For Microsoft Office, .NET Framework, and Silverlight (2681578)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Patch: MS12-MAY
Fortigate IPS: 🔍

Timelineinfo

12/13/2011 🔍
05/08/2012 +147 days 🔍
05/08/2012 +0 days 🔍
05/08/2012 +0 days 🔍
05/08/2012 +0 days 🔍
05/08/2012 +0 days 🔍
05/08/2012 +0 days 🔍
05/09/2012 +1 days 🔍
05/09/2012 +0 days 🔍
05/11/2012 +2 days 🔍
05/18/2012 +7 days 🔍
05/18/2012 +0 days 🔍
05/23/2012 +5 days 🔍
07/06/2025 +4792 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS12-034
Researcher: Geoff McDonald, Tarjei Mandt , Nicolas Economou
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2012-0181 (🔍)
GCVE (CVE): GCVE-0-2012-0181
GCVE (VulDB): GCVE-100-5365

OVAL: 🔍

X-Force: 75127
SecurityFocus: 53657 - Microsoft Windows Local Privilege Escalation Vulnerability
Secunia: 49120 - Microsoft Windows Multiple Vulnerabilities, Highly Critical
OSVDB: 81716
SecurityTracker: 1027039 - Windows OS Lets Remote Users Cause Arbitrary Code to Be Executed and Lets Local Users Gain Elevated Privileges
Vulnerability Center: 35039 - [MS12-034] Microsoft Windows Local Privileges Escalation Vulnerability Related to Keyboard Layout, High

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 05/11/2012 17:57
Updated: 07/06/2025 08:27
Changes: 05/11/2012 17:57 (90), 04/11/2017 17:13 (8), 03/24/2021 13:12 (3), 07/06/2025 08:27 (14)
Complete: 🔍
Cache ID: 216:05A:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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