Windows 10: CVE-2018-0986 | Microsoft Malware Protection Engine Vulnerability

Brink · Apr 3, 2018

A remote code execution vulnerability exists when the Microsoft Malware Protection Engine does not properly scan a specially crafted file, leading to memory corruption. An attacker who successfully exploited this vulnerability could execute arbitrary code in the security context of the LocalSystem account and take control of the system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To exploit this vulnerability, a specially crafted file must be scanned by an affected version of the Microsoft Malware Protection Engine. There are many ways that an attacker could place a specially crafted file in a location that is scanned by the Microsoft Malware Protection Engine. For example, an attacker could use a website to deliver a specially crafted file to the victim's system that is scanned when the website is viewed by the user. An attacker could also deliver a specially crafted file via an email message or in an Instant Messenger message that is scanned when the file is opened. In addition, an attacker could take advantage of websites that accept or host user-provided content, to upload a specially crafted file to a shared location that is scanned by the Malware Protection Engine running on the hosting server.

If the affected antimalware software has real-time protection turned on, the Microsoft Malware Protection Engine will scan files automatically, leading to exploitation of the vulnerability when the specially crafted file is scanned. If real-time scanning is not enabled, the attacker would need to wait until a scheduled scan occurs in order for the vulnerability to be exploited. All systems running an affected version of antimalware software are primarily at risk.

The update addresses the vulnerability by correcting the manner in which the Microsoft Malware Protection Engine scans specially crafted files.

Note: Typically, no action is required of enterprise administrators or end users to install updates for the Microsoft Malware Protection Engine, because the built-in mechanism for the automatic detection and deployment of updates will apply the update within 48 hours of release. The exact time frame depends on the software used, Internet connection, and infrastructure configuration.

Exploitability Assessment

The following table provides an exploitability assessment for this vulnerability at the time of original publication.

Publicly Disclosed Exploited Latest Software Release Older Software Release Denial of Service No No 2 - Exploitation Less Likely 2 - Exploitation Less Likely Not Applicable

Affected Products

The following software versions or editions are affected. Versions or editions that are not listed are either past their support life cycle or are not affected. To determine the support life cycle for your software version or edition, see the Microsoft Support Lifecycle.

Product Platform Article Download Impact Severity Supersedence Microsoft Exchange Server 2013 Remote Code Execution Critical Microsoft Exchange Server 2016 Remote Code Execution Critical Microsoft Forefront Endpoint Protection 2010 Remote Code Execution Critical Microsoft Security Essentials Remote Code Execution Critical Windows Defender Windows Server 2012 R2 Remote Code Execution Critical Windows Defender Windows 10 Version 1703 for 32-bit Systems Remote Code Execution Critical Windows Defender Windows 10 Version 1703 for x64-based Systems Remote Code Execution Critical Windows Defender Windows 10 Version 1709 for 32-bit Systems Remote Code Execution Critical Windows Defender Windows 10 Version 1709 for 64-based Systems Remote Code Execution Critical Windows Defender Windows Server, version 1709 (Server Core Installation) Remote Code Execution Critical Windows Defender Windows 10 for 32-bit Systems Remote Code Execution Critical Windows Defender Windows 10 for x64-based Systems Remote Code Execution Critical Windows Defender Windows 10 Version 1511 for 32-bit Systems Remote Code Execution Critical Windows Defender Windows 10 Version 1511 for x64-based Systems Remote Code Execution Critical Windows Defender Windows 10 Version 1607 for 32-bit Systems Remote Code Execution Critical Windows Defender Windows Server 2012 R2 (Server Core installation) Remote Code Execution Critical Windows Defender Windows Server 2016 Remote Code Execution Critical Windows Defender Windows Server 2016 (Server Core installation) Remote Code Execution Critical Windows Defender Windows 7 for 32-bit Systems Service Pack 1 Remote Code Execution Critical Windows Defender Windows 7 for x64-based Systems Service Pack 1 Remote Code Execution Critical Windows Defender Windows 8.1 for 32-bit systems Remote Code Execution Critical Windows Defender Windows 8.1 for x64-based systems Remote Code Execution Critical Windows Defender Windows RT 8.1 Remote Code Execution Critical Windows Defender Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 Remote Code Execution Critical Windows Defender Windows Server 2008 R2 for x64-based Systems Service Pack 1 Remote Code Execution Critical Windows Defender Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) Remote Code Execution Critical Windows Defender Windows Server 2012 Remote Code Execution Critical Windows Defender Windows Server 2012 (Server Core installation) Remote Code Execution Critical Windows Defender Windows 10 Version 1607 for x64-based Systems Remote Code Execution Critical Windows Intune Endpoint Protection Remote Code Execution Critical
Mitigations

Microsoft has not identified any mitigating factors for this vulnerability.

Workarounds

Microsoft has not identified any workarounds for this vulnerability.
Click to expand...

Read more: https://portal.msrc.microsoft.com/en.../CVE-2018-0986

:)

Richard Bruins · Apr 3, 2018

ETA of patch for "KRACK". Was this patched previously or should we expect a patch soon?

We are looking for information that suggest when "Key Reinstallation Attack" will be patched for Windows 10 Professional. Has it been patched in an earlier update? This vulnerability has also been dubbed as "KRACK". This vulnerability is being tracked
as CVE-2017-13077, CVE-2017-13078, CVE-2017-13079, CVE-2017-13080, CVE-2017-13081, CVE-2017-13082, CVE-2017-13084, CVE-2017-13086, CVE-2017-13087, CVE-2017-13088.

Taffy087 · Apr 3, 2018

How can I tell if I have the latest Internet Explorer (continued)

Below is one of five items listed in an email from Microsoft received yesterday with the heading 'The following CVEs and security bulletins have undergone a major revision increment'.

My 'Settings/About Internet Explorer' says I have version 11.540.15063.0 Update versions 11.0.45 (KB4034733).

Will someone tell me if I have the latest version, or where I can check, please. My WUs are set to be installed automatically and I've always assumed that all other MS updates are too. But what worries me is this sentence that appears in all five items:
"Microsoft recommends that customers who have not already done so install the XXX security updates to be fully protected from this vulnerability." Or is that aimed at users who prefer to choose which updates should be installed? (I
realise that some users block updates for a month or two in case post-update they are found to be faulty.)

- Title: CVE-2017-0071 | Scripting Engine Memory Corruption Vulnerability

-
https://portal.msrc.microsoft.com/en-us/security-guidance

- Reason for Revision: To comprehensively address CVE-2017-0071,

Microsoft released the July security updates for all versions of

Windows 10. Note that Windows 10 for 32-bit Systems, Windows 10

for x64-based Systems, Windows 10 Version 1703 for 32-bit Systems,

and Windows 10 Version 1703 for x64-based Systems have been added

to the Affected Products table as they are also affected by this

vulnerability. Microsoft recommends that customers who have not

already done so install the July 2017 security updates to be

fully protected from this vulnerability.

- Originally posted: March 14, 2017

- Updated: August 8, 2017

- CVE Severity Rating: Critical

AndreTen · Apr 3, 2018

Is current Insider vulnerable, or does this means that it's updated? Sorry, but MS is not always easy to understand..

FAQ
References
Identification
Last version of the Microsoft Malware Protection Engine affected by this vulnerability Version 1.1.14600.4
First version of the Microsoft Malware Protection Engine with this vulnerability addressed Version 1.1.14700.5
Click to expand...

Insider version:

Bree · Apr 3, 2018

On 16299.334 - NOT an Insider version. Was on 1.1.14700.4. But after checking for updates and installing this...

...Defender now shows this:

AndreTen · Apr 3, 2018

NOT an Insider version, and was on 1.1.14700.4. But after checking for updates and installing this...

...Defender now shows this:

Click to expand...

Same here *Thumbs

Gordon7 · Apr 4, 2018

If you manually update Win Defender, you will get the new engine plus definitions updated.

Do this if you run on "metered" connections!!!

Windows 10: CVE-2018-0986 | Microsoft Malware Protection Engine Vulnerability

CVE-2018-0986 | Microsoft Malware Protection Engine Vulnerability

CVE-2018-0986 | Microsoft Malware Protection Engine Vulnerability

CVE-2018-0986 | Microsoft Malware Protection Engine Vulnerability

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