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.
SYSTEMS AFFECTED:
- .NET and Visual Studio
- Azure Site Recovery
- Microsoft Defender for Endpoint
- Microsoft Defender for IoT
- Microsoft Edge (Chromium-based)
- Microsoft Exchange Server
- Microsoft Intune
- Microsoft Office Visio
- Microsoft Office Word
- Microsoft Windows ALPC
- Microsoft Windows Codecs Library
- Paint 3D
- Role: Windows Hyper-V
- Skype Extension for Chrome
- Tablet Windows User Interface
- Visual Studio Code
- Windows Ancillary Function Driver for WinSock
- Windows CD-ROM Driver
- Windows Cloud Files Mini Filter Driver
- Windows COM
- Windows Common Log File System Driver
- Windows DWM Core Library
- Windows Event Tracing
- Windows Fastfat Driver
- Windows Fax and Scan Service
- Windows HTML Platform
- Windows Installer
- Windows Kernel
- Windows Media
- Windows PDEV
- Windows Point-to-Point Tunneling Protocol
- Windows Print Spooler Components
- Windows Remote Desktop
- Windows Security Support Provider Interface
- Windows SMB Server
- Windows Update Stack
- Xbox
RISK:
Government:
- Large and medium government entities: High
- Small government entities: Medium
Businesses:
- 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 scan be found at the link below:
https://learn.cisecurity.org/e/799323/update-guide/rrk2v/269726125?h=7XaHwg6CdTwI3tMEbCM6cmzdTwfBwAFzgzjyaVICGSk
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.
- 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.
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REFERENCES:
Microsoft:
