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Category:   Application (Security)  >   Microsoft Malware Protection Engine Vendors:   Microsoft
Microsoft Malware Protection Engine File Processing Memory Corruption Flaws Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1039972
SecurityTracker URL:  http://securitytracker.com/id/1039972
CVE Reference:   CVE-2017-11937, CVE-2017-11940   (Links to External Site)
Updated:  Dec 8 2017
Original Entry Date:  Dec 7 2017
Impact:   Execution of arbitrary code via network, Root access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.1.14306.0
Description:   Two vulnerabilities were reported in Microsoft Malware Protection Engine. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted file that, when scanned by the target Microsoft Malware Protection Engine, will trigger a memory corruption error and execute arbitrary code on the target system. The code will run with LocalSystem privileges.

Microsoft Endpoint Protection, Microsoft Exchange Server, Microsoft Forefront Endpoint Protection, Microsoft Security Essentials, and Windows Defender are affected.

The UK's National Cyber Security Centre (NCSC) reported these vulnerabilities.

Impact:   A remote user can create content that, when scanned by the target Microsoft Malware Protection Engine, will execute arbitrary code with LocalSystem privileges on the target system.
Solution:   The vendor has issued a fix (1.1.14405.2).

The Microsoft advisories are available at:

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11937
https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-11940

Vendor URL:  portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11937 (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Dec 7 2017 (Microsoft Issues Fix for Microsoft Exchange Server) Microsoft Malware Protection Engine File Processing Memory Corruption Flaw Lets Remote Users Execute Arbitrary Code
Microsoft has issued a fix for Microsoft Exchange Server.
Dec 7 2017 (Microsoft Issues Fix for Microsoft Forefront Endpoint Protection) Microsoft Malware Protection Engine File Processing Memory Corruption Flaw Lets Remote Users Execute Arbitrary Code
Microsoft has issued a fix for Microsoft Forefront Endpoint Protection.
Dec 7 2017 (Microsoft Issues Fix for Microsoft Windows Defender) Microsoft Malware Protection Engine File Processing Memory Corruption Flaw Lets Remote Users Execute Arbitrary Code
Microsoft has issued a fix for Microsoft Windows Defender.



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