Critical Patches Issued for Microsoft Products, January 11, 2022

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

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

A full list of all vulnerabilities can be found at the link below:
https://msrc.microsoft.com/update-guide

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.

SYSTEM AFFECTED:
* .NET Framework
* Microsoft Dynamics
* Microsoft Edge (Chromium-based)
* Microsoft Exchange Server
* Microsoft Graphics Component
* Microsoft Office
* Microsoft Office Excel
* Microsoft Office SharePoint
* Microsoft Office Word
* Microsoft Teams
* Microsoft Windows Codecs Library
* Open Source Software
* Role: Windows Hyper-V
* Tablet Windows User Interface
* Windows Account Control
* Windows Active Directory
* Windows AppContracts API Server
* Windows Application Model
* Windows BackupKey Remote Protocol
* Windows Bind Filter Driver
* Windows Certificates
* Windows Cleanup Manager
* Windows Clipboard User Service
* Windows Cluster Port Driver
* Windows Common Log File System Driver
* Windows Connected Devices Platform Service
* Windows Cryptographic Services
* Windows Defender
* Windows Devices Human Interface
* Windows Diagnostic Hub
* Windows DirectX
* Windows DWM Core Library
* Windows Event Tracing
* Windows Geolocation Service
* Windows HTTP Protocol Stack
* Windows IKE Extension
* Windows Installer
* Windows Kerberos
* Windows Kernel
* Windows Libarchive
* Windows Local Security Authority
* Windows Local Security Authority Subsystem Service
* Windows Modern Execution Server
* Windows Push Notifications
* Windows RDP
* Windows Remote Access Connection Manager
* Windows Remote Desktop
* Windows Remote Procedure Call Runtime
* Windows Resilient File System (ReFS)
* Windows Secure Boot
* Windows Security Center
* Windows StateRepository API
* Windows Storage
* Windows Storage Spaces Controller
* Windows System Launcher
* Windows Task Flow Data Engine
* Windows Tile Data Repository
* Windows UEFI
* Windows UI Immersive Server
* Windows User Profile Service
* Windows User-mode Driver Framework
* Windows Virtual Machine IDE Drive
* Windows Win32K
* Windows Workstation Service Remote Protocol

RECOMMENDATIONS:
We recommend the following actions be taken:

* Apply appropriate patches or appropriate mitigations provided by
Microsoft to vulnerable systems immediately after appropriate testing.
* Apply the Principle of Least Privilege to all systems and services,
and 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/open
files provided by unknown or untrusted sources.

REFERENCES:
* https://msrc.microsoft.com/update-guide
* https://msrc.microsoft.com/update-guide/releaseNote/2022-Jan

Published: 13 January 2022, 16:41:07 BST