Patch Tuesday - December 2022

Patch Tuesday - December 2022

As far as Patch Tuesdays go, defenders have a relatively light month to close out the year with only 48 CVEs being published by Microsoft today. (This does not include the 24 previously disclosed vulnerabilities affecting their Chromium-based Edge browser.)

There are two zero-days in the mix today. CVE-2022-44698 is a bypass of the Windows SmartScreen security feature, and has been seen exploited in the wild. It allows attackers to craft documents that won’t get tagged with Microsoft’s “Mark of the Web” despite being downloaded from untrusted sites. This means no Protected View for Microsoft Office documents, making it easier to get users to do sketchy things like execute malicious macros. Publicly disclosed, but not seen actively exploited, is CVE-2022-44710. It’s a classic elevation of privilege vulnerability affecting the DirectX graphics kernel on Windows 11 22H2 systems.

Administrators for SharePoint and Microsoft Dynamics deployments should be aware of Critical Remote Code Execution (RCE) vulnerabilities that need to be patched. Other Critical RCEs this month affect the Windows Secure Socket Tunneling Protocol (CVE-2022-44676 and CVE-2022-44670), .NET Framework (CVE-2022-41089), and PowerShell (CVE-2022-41076).

Happy holidays, and may your patching be merry and bright!

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