MS Security Advisory 4022344: Security Update for Microsoft Malware Protection Engine

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote host has an antimalware application installed that is
affected by a remote code execution vulnerability.

Description :

The version of Microsoft Malware Protection Engine (MMPE) installed on
the remote Windows host is prior to 1.1.13704.0. It is, therefore,
affected by a remote code execution vulnerability in the NScript
component in mpengine.dll due to a type confusion error. An
unauthenticated, remote attacker can exploit this, via a specially
crafted file, to execute arbitrary code in the security context of the
LocalSystem account.

Nessus has checked if a vulnerable version of MMPE is being used by
any of the following applications :

- Microsoft Forefront Endpoint Protection 2010
- Microsoft Endpoint Protection
- Microsoft Forefront Security for SharePoint
- Microsoft System Center Endpoint Protection
- Microsoft Security Essentials
- Windows Defender for Windows 7, Windows 8.1, Windows RT
8.1, Windows 10, Windows 10 1511, Windows 10 1607,
Windows 10 1703, and Windows Server 2016
- Windows Intune Endpoint Protection

See also :

https://technet.microsoft.com/en-us/library/security/4022344.aspx

Solution :

Enable automatic updates to update the scan engine for the relevant
antimalware applications. Refer to KB4022344 for information on how to
verify MMPE has been updated.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 7.8
(CVSS2#E:POC/RL:OF/RC:ND)
Public Exploit Available : true

Family: Windows

Nessus Plugin ID: 100051 ()

Bugtraq ID: 98330

CVE ID: CVE-2017-0290

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