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Category:   Application (Security)  >   Microsoft Malware Protection Engine Vendors:   Microsoft
Microsoft Malware Protection Engine Registry Processing Error Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1025117
SecurityTracker URL:
CVE Reference:   CVE-2011-0037   (Links to External Site)
Date:  Feb 24 2011
Impact:   Execution of arbitrary code via local system, Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.1.6502.0 and prior versions
Description:   A vulnerability was reported in Microsoft Malware Protection Engine. A local user can obtain elevated privileges on the target system.

A local user can create a specially crafted Registry key that, when scanned by the malware engine, will trigger a flaw in 'mpengine.dll' and execute arbitrary code with LocalSystem privileges.

The following products include the vulnerable component and are affected:

Windows Live OneCare
Microsoft Security Essentials
Microsoft Windows Defender
Microsoft Forefront Client Security
Microsoft Forefront Endpoint Protection 2010
Microsoft Malicious Software Removal Tool

The Malicious Software Removal Tool (MSRT) is only affected when run after being offered via Automatic Update. It is not affected when run manually.

The Microsoft Antigen for Exchange, Microsoft Antigen for SMTP Gateway, Forefront Protection 2010 for Exchange Server, Forefront Threat Management Gateway 2010, Microsoft Forefront Security for SharePoint, Forefront Security for Office Communications Server, and Microsoft Standalone System Sweeper (part of Microsoft Diagnostics and Recovery Toolset) products are not affected.

Cesar Cerrudo of Argeniss reported this vulnerability.

Impact:   A local user can obtain LocalSystem privileges on the target system.
Solution:   The vendor has issued a fix (1.1.6603.0), available automatically.

The vendor's advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Not specified
Underlying OS:  Windows (Any)

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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