Microsoft Windows Keyboard Layout win32k.sys Windows Class access control

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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Microsoft Windows. Affected by this vulnerability is the function Windows Class of the file win32k.sys of the component Keyboard Layout Handler. Such manipulation leads to access control. This vulnerability is uniquely identified as CVE-2010-2744. Moreover, an exploit is present. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Microsoft Windows (Operating System) (affected version not known). It has been rated as problematic. Affected by this issue is the function Windows Class of the file win32k.sys of the component Keyboard Layout Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, and integrity. CVE summarizes:

The kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 do not properly manage a window class, which allows local users to gain privileges by creating a window, then using (1) the SetWindowLongPtr function to modify the popup menu structure, or (2) the SwitchWndProc function with a switch window information pointer, which is not re-initialized when a WM_NCCREATE message is processed, aka "Win32k Window Class Vulnerability."

The weakness was disclosed 10/12/2010 by Tarjei Mandt with Microsoft as MS10-073 as confirmed bulletin (Technet). The advisory is available at microsoft.com. This vulnerability is handled as CVE-2010-2744 since 07/14/2010. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

A public exploit has been developed by Tarjei Mandt in ANSI C and been published 3 months after the advisory. The exploit is available at securityfocus.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 49950 (MS10-073: Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (981957)), 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 90611 (Microsoft Windows Kernel-Mode Drivers Privilege Elevation Vulnerability (MS10-073)).

Upgrading eliminates this vulnerability. Applying the patch MS10-073 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 (62137), Exploit-DB (15894), Tenable (49950), SecurityFocus (BID 43773†) and OSVDB (66003†). The entries VDB-4151 and VDB-4207 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 5.9
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: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Tarjei Mandt
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 49950
Nessus Name: MS10-073: Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (981957)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 902323
OpenVAS Name: Windows Kernel-Mode Drivers Privilege Elevation Vulnerabilities (981957)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Exploit Delay Time: 🔍

Patch: MS10-073

Timelineinfo

07/02/2010 🔍
07/05/2010 +3 days 🔍
07/14/2010 +8 days 🔍
10/12/2010 +90 days 🔍
10/12/2010 +0 days 🔍
10/12/2010 +0 days 🔍
10/13/2010 +1 days 🔍
10/13/2010 +0 days 🔍
10/19/2010 +6 days 🔍
01/02/2011 +75 days 🔍
01/02/2011 +0 days 🔍
03/18/2021 +3728 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS10-073
Researcher: Tarjei Mandt
Organization: Microsoft
Status: Confirmed

CVE: CVE-2010-2744 (🔍)
GCVE (CVE): GCVE-0-2010-2744
GCVE (VulDB): GCVE-100-4202

OVAL: 🔍

X-Force: 62137
SecurityFocus: 43773 - Microsoft Windows Kernel 'Win32k.sys' Window Class Local Privilege Escalation Vulnerability
Secunia: 41775 - Microsoft Windows win32k.sys Driver Window Class Privilege Escalation, Less Critical
OSVDB: 66003 - Microsoft Windows win32k.sys NtUserCheckAccessForIntegrityLevel Use-After-Free Local Privilege Escalation
Vulnerability Center: 27635 - [MS10-073] Microsoft Windows Local Privilege Escalation Vulnerability via Windows Class Data, High

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

Entryinfo

Created: 10/19/2010 02:00
Updated: 03/18/2021 12:35
Changes: 10/19/2010 02:00 (85), 03/07/2017 09:47 (17), 03/18/2021 12:35 (3)
Complete: 🔍
Cache ID: 216:489:103

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

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