Rewterz Threat Advisory – Microsoft Windows Server 2012 / Windows RT 8.1 / 8.1 Multiple Vulnerabilities

Multiple vulnerabilities have been reported in Microsoft Windows Server 2012, Microsoft Windows RT 8.1, and Microsoft Windows 8.1. Updates are available that fix these vulnerabilities.

IMPACT:  HIGH

PUBLISH DATE:  11-14-2018

OVERVIEW

Multiple vulnerabilities have been reported in Microsoft Windows Server 2012, Microsoft Windows RT 8.1, and Microsoft Windows 8.1, which can be exploited by malicious, local users to disclose sensitive information, bypass certain security restrictions, and gain escalated privileges. Updates are available for fixing these vulnerabilities.

ANALYSIS

An error related to DirectX while handling objects in memory can be exploited to disclose certain data. The successful exploitation of these vulnerabilities may cause significant inconveniences including exposure of sensitive information, script insertion attacks and Security Bypass. Local users with malicious intent may also gain elevated privileges.

A number of CVE references are associated with the updates, whose descriptions are not available at the time of creation of this advisory.

CVE-2018-8256

CVE-2018-8544

CVE-2018-8563

CVE-2018-8549

CVE-2018-8476

CVE-2018-8407

CVE-2018-8562

CVE-2018-8471

CVE-2018-8550

CVE-2018-8485

CVE-2018-8408

CVE-2018-8565

CVE-2018-8553

CVE-2018-8547

CVE-2018-8450

CVE-2018-8561

CVE-2018-8415

AFFECTED PRODUCTS

Microsoft Windows Server 2012

Microsoft Windows RT 8.1

Microsoft Windows 8.1

UPDATES

Update the following versions as suggested:

• Windows 8.1 for 32-bit systems (KB4467703):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4467703

• Windows Server 2012 (KB4467678):
• Windows Server 2012 (Server Core installation) (KB4467678):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4467678

• Windows RT 8.1 (KB4467697):

Apply update (please see the vendor’s service database for details).

• Windows 8.1 for x64-based systems (KB4467697):
• Windows Server 2012 R2 (KB4467697):
• Windows Server 2012 R2 (Server Core installation) (KB4467697):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4467697

• Windows 8.1 for 32-bit systems (KB4467697):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4467697

• Windows Server 2012 (KB4467701):
• Windows Server 2012 (Server Core installation) (KB4467701):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4467701

• Windows 8.1 for x64-based systems (KB4467703):
• Windows Server 2012 R2 (KB4467703):
• Windows Server 2012 R2 (Server Core installation) (KB4467703):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4467703

• Windows RT 8.1 (KB4467703):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4467703

• Windows Server 2012 (KB3173426):
• Windows Server 2012 (Server Core installation) (KB3173426):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB3173426

• Windows 8.1 for x64-based systems (KB3173424):
• Windows Server 2012 R2 (KB3173424):
• Windows Server 2012 R2 (Server Core installation) (KB3173424):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB3173424

• Windows 8.1 for 32-bit systems (KB3173424):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB3173424

Note: Security updates for Windows RT 8.1 are available via e.g. Windows Update or Windows Update Catalog only.

It is recommended to update the products you’re using, if any, as soon as possible.

If you think you’re the victim of a cyber-attack, immediately send an email to soc@rewterz.com.