KLA11057 Arbitrary code execution vulnerability in Microsoft Malware Protection Engine

An improper scanning of specially designed files was found in Microsoft Malware Protection Engine in Microsoft Windows. By exploiting this vulnerability malicious users can execute arbitrary code. This vulnerability can be exploited remotely by putting a specially designed file to a directory scanned by the Microsoft Malware Protection Engine. It can be done via a website when it is being viewed by a user, via email message or an Instant Messenger message or a shared location.

Original advisories

CVE-2017-8558

Exploitation

Public exploits exist for this vulnerability.

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Related products

Microsoft-Windows-7

Microsoft-Windows-Server-2008

Microsoft-Windows-10

CVE list

CVE-2017-8558 critical

Solution

Check whether version of Microsoft Malware Protection Engine is later than 1.1.13804.0 or not. If it is necessary – install update. However, enterprise administrators or end users do not have to take any actions to install updates for Microsoft Malware Protection Engine because the update will be detected and applied automatically within 48 hours of release.

Impacts

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

Affected Products

• Microsoft Windows 7  Service Pack 1Microsoft Windows 8.1Microsoft Windows RT 8.1Microsoft Windows 10 Microsoft Windows Server 2008 Service Pack 2 Microsoft Windows Server 2008 R2 Service Pack 1 Microsoft Windows Server 2012Microsoft Windows Server 2012 R2