Security Advisory - March 08, 2016

Zscaler Protects against Multiple Security Vulnerabilities in Internet Explorer, Microsoft Edge, Windows Media Player, Windows Kernel, Microsoft PDF Library, and Microsoft Office.

Zscaler, working with Microsoft through their MAPP program, has proactively deployed protections for the following 21 vulnerabilities included in the March 2016 Microsoft security bulletins. Zscaler will continue to monitor exploits associated with all vulnerabilities in the March release and deploy additional protections as necessary.

MS16-023 –  Cumulative Security Update for Internet Explorer

Severity: Critical 
Affected Software

  • Internet Explorer 9-11

CVE-2016-0103 – Internet Explorer Memory Corruption Vulnerability

CVE-2016-0104 – Internet Explorer Memory Corruption Vulnerability

CVE-2016-0105 – Microsoft Browser Memory Corruption Vulnerability

CVE-2016-0106 – Internet Explorer Memory Corruption Vulnerability

CVE-2016-0107 – Internet Explorer Memory Corruption Vulnerability

CVE-2016-0108 – Internet Explorer Memory Corruption Vulnerability

CVE-2016-0109 – Microsoft Browser Memory Corruption Vulnerability

CVE-2016-0110 – Microsoft Browser Memory Corruption Vulnerability

CVE-2016-0111 – Microsoft Browser Memory Corruption Vulnerability

CVE-2016-0112 – Internet Explorer Memory Corruption Vulnerability

CVE-2016-0113 – Internet Explorer Memory Corruption Vulnerability

CVE-2016-0114 – Internet Explorer Memory Corruption Vulnerability

Description: This security update resolves vulnerabilities in Internet Explorer. The most severe of the vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Internet Explorer. An attacker who successfully exploited this vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

MS16-024 – Cumulative Security Update for Microsoft Edge

Severity: Critical
Affected Software

  • Microsoft Edge

CVE-2016-0102 – Microsoft Browser Memory Corruption Vulnerability

CVE-2016-0123 – Microsoft Edge Memory Corruption Vulnerability

CVE-2016-0124 – Microsoft Edge Memory Corruption Vulnerability

Description: This security update resolves vulnerabilities in Microsoft Edge. The most severe of the vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Microsoft Edge. An attacker who successfully exploited the vulnerabilities could gain the same user rights as the current user. Customers whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

MS16-027 – Security Update for Windows Media Player to address Remote Code Execution

Severity: Critical
Affected Software

  • Windows Server 2008 R2 SP1
  • Windows Server 2012 and Windows Server 2012 R2
  • Windows 7 SP1
  • Windows 8.1 and Windows RT 8.1
  • Windows 10

CVE-2016-0098 – Windows Media Player Parsing Remote Code Execution Vulnerability

Description: This security update resolves vulnerabilities in Microsoft Windows. The vulnerabilities could allow remote code execution if a user opens specially crafted media content that is hosted on a website.

MS16-028 – Security Update for Microsoft Windows PDF Library to Address Remote Code Execution

Severity: Critical
Affected Software

  • Windows Server 2012 and Windows Server 2012 R2
  • Windows 8.1
  • Windows RT 8.1
  • Windows 10

CVE-2016-0117 – Remote Code Execution Vulnerability

CVE-2016-0118 – Remote Code Execution Vulnerability

Description: This security update resolves vulnerabilities in Microsoft Windows. The vulnerabilities could allow remote code execution if a user opens a specially crafted .pdf file. An attacker who successfully exploited these vulnerabilities could cause arbitrary code to execute in the context of the current user. If a user is logged on with administrative user rights, an attacker could take control of the affected system. 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 users who operate with administrative user rights.

MS16-029 – Security Update for Microsoft Office to Address Remote Code Execution

Severity: Important
Affected Software

  • Microsoft Office 2007 SP3
  • Microsoft Office 2010 SP2
  • Microsoft Office 2013 SP1
  • Microsoft Office 2013 RT SP1
  • Microsoft Office 2016
  • Microsoft Office 2011 for Mac
  • Microsoft Office 2016 for Mac

CVE-2016-0021 – Microsoft Office Memory Corruption Vulnerability

CVE-2016-0134 – Microsoft Office Memory Corruption Vulnerability

Description: This security update resolves vulnerabilities in Microsoft Office. The most severe of the vulnerabilities could allow remote code execution if a user opens a specially crafted Microsoft Office file. An attacker who successfully exploited the vulnerabilities could run arbitrary code in the context of the current user. Customers whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

MS16-034 – Security Update for Windows Kernel-Mode Driver to Address Elevation of Privilege

Severity: Important
Affected Software

  • Windows Server 2008 SP2 and Windows Server 2008 R2 SP1
  • Windows Server 2012 and Windows Server 2012 R2
  • Windows Vista SP2
  • Windows 7 SP1
  • Windows 8.1
  • Windows RT 8.1
  • Windows 10

CVE-2016-0093 – Win32k Elevation of Privilege Vulnerability

Description: This security update resolves vulnerabilities in Microsoft Windows. The vulnerabilities could allow elevation of privilege if an attacker logs on to the system and runs a specially crafted application.