Microsoft’s March 2020 Patch Tuesday is Absolutely Massive

March Patch Tuesday Updates are Now Available

Microsoft Patch Tuesday has officially arrived with 115 new patches. There are 26 Critical patches with the remaining marked Important and Moderate.

Support for Windows 7 and Windows Server 2008 (including R2) was officially ended in January, but there are plenty of updates released this month for customers who have purchased an extension agreement.

Robert Brown, Director of Services for Syxsense said, “A large portion of the Critical updates released today are for the Internet Explorer browser, including four of these CVEs for Windows 7. Even if your corporate policy is to use an alternative browser, if your devices have the IE binaries on the system drive, then you must patch.”

New Windows 7 Vulnerabilities

For those still using this legacy operating system, we have listed the updates you need to prioritize in this Patch Tuesday:

1. CVE-2020-0832, CVE-2020-0833, CVE-2020-0824, CVE-2020-0847 – Internet Explorer 11 – In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website. The security update addresses the vulnerability by modifying how the scripting engine handles objects in memory.
2. CVE-2020-0844 – Connected User Experiences and Telemetry Service – The security update addresses the vulnerability by correcting how the Connected User Experiences and Telemetry Service handles file operations.
3. CVE-2020-0645 – Microsoft IIS Server Tampering – The update addresses the vulnerability by modifying how IIS Server handles malformed request headers.
4. CVE-2020-0788, CVE-2020-0877, CVE-2020-0887 – Win32k Elevation – The update addresses this vulnerability by correcting how Win32k handles objects in memory.
5. CVE-2020-0787 – Windows Background Intelligent Transfer Service – The security update addresses the vulnerability by correcting how Windows BITS handles symbolic links.
6. CVE-2020-0769 – Windows CSC – The security update addresses the vulnerability by correcting how the Windows CSC Service handles memory.
7. CVE-2020-0849 – Windows Hard Link – The security update addresses the vulnerability by correcting how Windows handles hard links.
8. CVE-2020-0779 – Windows Installer – The security update addresses the vulnerability by modifying how reparse points are handled by the Windows Installer.
9. CVE-2020-0778 – Windows Network Connections Service – The security update addresses the vulnerability by ensuring the Windows Network Connections Service properly handles objects in memory.

Syxsense Recommendations

Based on the vendor severity and CVSS score, we have made a few recommendations below which you should prioritize this month. Please pay close attention to any of these which are Publicly Aware and / or Weaponized.

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