Security Advisory SA41471 - Microsoft Windows win32k.sys Driver Keyboard Layout Privilege Escalation

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Secunia Advisory SA41471

Microsoft Windows win32k.sys Driver Keyboard Layout Privilege Escalation

Secunia Advisory

SA41471

Release Date

2010-09-21

Last Update

2010-10-12

Popularity

5,296 views

Comments

0 comments

Criticality level

Less critical

Impact

Privilege escalation

Where

Local system

Authentication level

This information is available to Secunia VIM customers

Report reliability

This information is available to Secunia VIM customers

Solution Status

Vendor Patch

3rd party PoC/exploit

Link available in Customer Area

Systems affected

This information is available to Secunia VIM customers

Approve distribution

This information is available to Secunia VIM customers

Remediation status

Secunia CSI, Secunia PSI

Automated scanning

Secunia CSI, Secunia PSI

Operating System

Microsoft Windows 7

Microsoft Windows Server 2003 Datacenter Edition

Microsoft Windows Server 2003 Enterprise Edition

Microsoft Windows Server 2003 Standard Edition

Microsoft Windows Server 2003 Web Edition

Microsoft Windows Server 2008

Microsoft Windows Storage Server 2003

Microsoft Windows Vista

Microsoft Windows XP Home Edition

Microsoft Windows XP Professional

Secunia CVSS Score

This information is available to Secunia VIM Customers

CVE Reference(s)

CVE-2010-2743 CVSS score available to Secunia VIM customers

Description

A vulnerability has been reported in Microsoft Windows, which can be exploited by malicious, local users to gain escalated privileges.

The vulnerability is caused due an indexing error when accessing a table of function pointers in win32k.sys during the loading of keyboard layouts and can be exploited to execute arbitrary code in kernel-mode.

NOTE: The vulnerability is currently being actively exploited.

Solution
Apply patches.
Further details available to Secunia VIM customers

Provided and/or discovered by
Reported as a 0-day.

Changelog
Further details available to Secunia VIM customers

Original Advisory
Microsoft:
http://blogs.technet.com/b/msrc/archive/2010/09/13/september-2010-security-bulletin-release.aspx

MS10-073 (KB981957):
http://www.microsoft.com/technet/security/bulletin/MS10-073.mspx

Deep Links
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Microsoft Windows win32k.sys Driver Keyboard Layout Privilege Escalation

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Secunia Advisory SA41471

Microsoft Windows win32k.sys Driver Keyboard Layout Privilege Escalation

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