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

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), Tenable (59042) and Exploit-DB (18894). Similar entries are available at 4436, 5357, 5358 and 5359.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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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: 🔍
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CVSSv2info

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Exploitinginfo

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

Local: Yes
Remote: No

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

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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

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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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Patch: MS12-MAY
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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 🔍
03/24/2021 +3227 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 (🔍)
OVAL: 🔍

X-Force: 75127
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
SecurityFocus: 53657 - Microsoft Windows Local Privilege Escalation Vulnerability
Secunia: 49120 - Microsoft Windows Multiple Vulnerabilities, Highly Critical
OSVDB: 81716

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

Entryinfo

Created: 05/11/2012 17:57
Updated: 03/24/2021 13:12
Changes: 05/11/2012 17:57 (90), 04/11/2017 17:13 (8), 03/24/2021 13:12 (3)
Complete: 🔍

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