| TLP:CLEARMS-ISAC CYBERSECURITY ADVISORY
 MS-ISAC ADVISORY NUMBER:2024-002
 DATE(S) ISSUED:01/09/2024
 SUBJECT:Critical Patches Issued for Microsoft Products, January 09, 2024
 OVERVIEW: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.
 THREAT INTELLIGENCE:There are currently no reports of these vulnerabilities being exploited in the wild.
 
  .NET and Visual Studio  .NET Core & Visual Studio  .NET Framework  Azure Storage Mover  Microsoft Bluetooth Driver  Microsoft Devices  Microsoft Identity Services  Microsoft Office  Microsoft Office SharePoint  Microsoft Virtual Hard Drive  Remote Desktop Client  SQL Server  Unified Extensible Firmware Interface  Visual Studio  Windows AllJoyn API  Windows Authentication Methods  Windows BitLocker  Windows Cloud Files Mini Filter Driver  Windows Collaborative Translation Framework  Windows Common Log File System Driver  Windows Cryptographic Services  Windows Cryptographic Services  Windows Group Policy  Windows Hyper-V  Windows Hyper-V  Windows Kernel  Windows Kernel-Mode Drivers  Windows Libarchive  Windows Libarchive  Windows Local Security Authority Subsystem Service (LSASS)  Windows Message Queuing  Windows Message Queuing  Windows Message Queuing  Windows Message Queuing  Windows Message Queuing  Windows Message Queuing  Windows Nearby Sharing  Windows ODBC Driver  Windows Online Certificate Status Protocol (OCSP) SnapIn  Windows Online Certificate Status Protocol (OCSP) SnapIn  Windows Scripting  Windows Server Key Distribution Service  Windows Subsystem for Linux  Windows TCP/IP  Windows Themes  Windows Themes  Windows Win32 Kernel Subsystem  Windows Win32K     
  Large and medium government entities:  High  Small government entities:  Medium     
  Large and medium business entities:  High  Small business entities:  Medium Home users: Low TECHNICAL SUMMARY: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://learn.cisecurity.org/e/799323/ate-guide-releaseNote-2024-Jan/4tfdd7/1823594439/h/IzLuj8i2Mc1druwfi1PHKXDI8yuzPfdh2KxiRWQvwOw 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. RECOMMENDATIONS:We recommend the following actions be taken:
 
  Apply appropriate patches or appropriate mitigations provided by Microsoft to vulnerable systems immediately after appropriate testing. (M1051:   Update Software)  
  Safeguard 7.1: Establish and Maintain a Vulnerability Management Process: Establish and maintain a documented vulnerability management   process for enterprise assets. Review and update documentation annually, or when significant enterprise changes occur that could impact this Safeguard.  Safeguard 7.4: Perform Automated Application Patch Management: Perform application updates on enterprise assets through automated   patch management on a monthly, or more frequent, basis.  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. (M1026:   Privileged Account Management)  
  Safeguard 4.7: Manage Default Accounts on Enterprise Assets and Software: Manage default accounts on enterprise assets and software,   such as root, administrator, and other pre-configured vendor accounts. Example implementations can include: disabling default accounts or making them unusable.  Safeguard 5.4: Restrict Administrator Privileges to Dedicated Administrator Accounts: Restrict administrator privileges to dedicated   administrator accounts on enterprise assets. Conduct general computing activities, such as internet browsing, email, and productivity suite use, from the user’s primary, non-privileged account.  Remind all users not to visit untrusted websites or follow links/open files provided by unknown or untrusted sources. (M1017:   User Training)  
  Safeguard 14.1: Establish and Maintain a Security Awareness Program: Establish and maintain a security awareness program. The purpose   of a security awareness program is to educate the enterprise’s workforce on how to interact with enterprise assets and data in a secure manner. Conduct training at hire and, at a minimum, annually. Review and update content annually, or when significant enterprise   changes occur that could impact this Safeguard.  Safeguard 14.2: Train Workforce Members to Recognize Social Engineering Attacks: Train workforce members to recognize social engineering   attacks, such as phishing, pre-texting, and tailgating.  Use capabilities to prevent suspicious behavior patterns from occurring on endpoint systems. This could include suspicious process, file, API call, etc. behavior. (M1040   : Behavior Prevention on Endpoint)  
  Safeguard 13.2 : Deploy a Host-Based Intrusion Detection Solution: Deploy a host-based intrusion detection solution on enterprise   assets, where appropriate and/or supported.  Safeguard 13.7 : Deploy a Host-Based Intrusion Prevention Solution: Deploy a host-based intrusion prevention solution on enterprise   assets, where appropriate and/or supported. Example implementations include use of an Endpoint Detection and Response (EDR) client or host-based IPS agent. 
Microsoft:https://msrc.microsoft.com/update-guide/
 https://msrc.microsoft.com/update-guide/releaseNote/2024-Jan
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