Critical Patches Issued for Microsoft Products, January 03, 2018

ITS Advisory Number: 
2018-001
Date(s) Issued: 
Thursday, January 4, 2018
Date Updated: 
Tuesday, January 30, 2018
Subject: 
Critical Patches Issued for Microsoft Products, January 03, 2018
Overview: 

Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for code execution. Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining the same privileges as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

January 9th – UPDATED OVERVIEW:

The January 9th release incorporates patches for additional vulnerabilities and is applicable to additional systems. 

Systems Affected: 
  • Microsoft Internet Explorer 11
  • Microsoft Edge
  • Microsoft Windows: 7, 8.1, 10
  • Microsoft Windows Server: 2008, 2008 R2, 2012, 2012 R2, 2016
  • Microsoft SQL Server: 2016, 2016 GDR, 2017, 2017 GDR

January 9th – UPDATED SYSTEM AFFECTED:

  • Microsoft Office: 2007, 2010, 2013, 2016
  • SharePoint Server: 2010, 2013, 2016
  • SharePoint Foundation: 2010, 2013
  • .NET Framework: 2, 3, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1
  • .NET Core
  • ChakraCore
  • ASP.NET Core
RISK
GOVERNMENT
Large and medium government entities: 
High
Small government entities: 
High
BUSINESS
Large and medium business entities: 
High
Small business entities: 
High
Home Users: 
High
Description: 

Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for code execution.

A full list of all vulnerabilities can be found at the link in the references below.

Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining the same privileges as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

January 30 – UPDATED DESCRIPTION:

Microsoft has released an out of band patch (KB4078130), which disables mitigations for CVE-2017-5715. This is in response to reports that the update mitigating CVE-2017-5715 resulted in unexpected reboots and other unexpected behavior that may lead to data loss or corruption. This patch only affects the mitigation against CVE-2017-5715, which was found to be the root cause of the unexpected behavior. Installation of this patch will remove the protections against CVE-2017-5715 on affected machines.

For those experiencing this behavior and who would like to apply this patch, Microsoft has made the patch available at the link below:

http://www.catalog.update.microsoft.com/Search.aspx?q=KB4078130

Actions: 
  • After appropriate testing, immediately install the updates provided by Microsoft. 
  • Run all software as a non-privileged user (one without administrative rights) to diminish the effects of a successful attack.
  • Remind all users not to visit untrusted websites or follow links provided by unknown or untrusted sources.
  • Inform and educate users regarding threats posed by hypertext links contained in emails or attachments especially from untrusted sources.
  • Apply the Principle of Least Privilege to all systems and services.