ゼットスケーラーのセキュリティアドバイザリ

セキュリティ アドバイザリー - January 12, 2022

Zscaler protects against 6 new vulnerabilities for Windows, Windows Common Log File System Driver and Windows Installer

  1. Overview
  2. CVE-2022-21881 – Windows Kernel Elevation of Privilege Vulnerability
  3. CVE-2022-21882 – Win32k Elevation of Privilege Vulnerability
  4. CVE-2022-21887 – Win32k Elevation of Privilege Vulnerability
  5. CVE-2022-21897 – Windows Common Log File System Driver Elevation of Privilege Vulnerability
  6. CVE-2022-21908 – Windows Installer Elevation of Privilege Vulnerability
  7. CVE-2022-21916 – Windows Common Log File System Driver Elevation of Privilege Vulnerability

Zscaler, working with Microsoft through their MAPP program, has proactively deployed protection for the following 6 vulnerabilities included in the January 2022 Microsoft security bulletins. Zscaler will continue to monitor exploits associated with all vulnerabilities in the January release and deploy additional protections, as necessary.

CVE-2022-21881 – Windows Kernel Elevation of Privilege Vulnerability

Severity: Important

Affected Software

  • Windows Server 2016
  • Windows 10 Version 1607 for x64based Systems
  • Windows Server 2022
  • Windows 10 Version 21H1 for 32bit Systems
  • Windows 10 Version 1607 for 32bit Systems
  • Windows 10 for x64based Systems
  • Windows 10 for 32bit Systems
  • Windows 10 Version 20H2 for ARM64based Systems
  • Windows 10 Version 20H2 for 32bit Systems
  • Windows 10 Version 20H2 for x64based Systems
  • Windows Server 2022 (Server Core installation)
  • Windows Server 2012 R2 (Server Core installation)
  • Windows Server 2012 R2
  • Windows RT 8.1
  • Windows 8.1 for x64based systems
  • Windows 8.1 for 32bit systems
  • Windows Server 2016 (Server Core installation)
  • Windows 10 Version 1809 for 32bit Systems
  • Windows 10 Version 21H2 for x64based Systems
  • Windows 10 Version 21H2 for ARM64based Systems
  • Windows 10 Version 21H2 for 32bit Systems
  • Windows 11 for ARM64based Systems
  • Windows 11 for x64based Systems
  • Windows Server, version 20H2 (Server Core Installation)
  • Windows 10 Version 21H1 for ARM64based Systems
  • Windows 10 Version 21H1 for x64based Systems
  • Windows 10 Version 1909 for ARM64based Systems
  • Windows 10 Version 1909 for x64based Systems
  • Windows 10 Version 1909 for 32bit Systems
  • Windows Server 2019 (Server Core installation)
  • Windows Server 2019
  • Windows 10 Version 1809 for ARM64based Systems
  • Windows 10 Version 1809 for x64based Systems

CVE-2022-21882 – Win32k Elevation of Privilege Vulnerability

Severity: Important

Affected Software

  • Windows 10 Version 20H2 for 32bit Systems
  • Windows 10 Version 20H2 for x64based Systems
  • Windows 10 Version 1909 for ARM64based Systems
  • Windows 10 Version 1909 for x64based Systems
  • Windows 10 Version 1909 for 32bit Systems
  • Windows 10 Version 21H2 for x64based Systems
  • Windows 10 Version 21H2 for ARM64based Systems
  • Windows 10 Version 21H2 for 32bit Systems
  • Windows 11 for ARM64based Systems
  • Windows 11 for x64based Systems
  • Windows Server, version 20H2 (Server Core Installation)
  • Windows 10 Version 20H2 for ARM64based Systems
  • Windows Server 2022 (Server Core installation)
  • Windows Server 2022
  • Windows 10 Version 21H1 for 32bit Systems
  • Windows 10 Version 21H1 for ARM64based Systems

CVE-2022-21887 – Win32k Elevation of Privilege Vulnerability

Severity: Important

Affected Software

  • Windows 11 for ARM64based Systems
  • Windows 11 for x64based Systems

CVE-2022-21897 – Windows Common Log File System Driver Elevation of Privilege Vulnerability

Severity: Important

Affected Software

  • Windows 10 Version 1607 for 32bit Systems
  • Windows 10 for x64based Systems
  • Windows 10 Version 20H2 for 32bit Systems
  • Windows 10 Version 20H2 for x64based Systems
  • Windows RT 8.1
  • Windows 8.1 for x64based systems
  • Windows Server 2016
  • Windows 10 Version 1607 for x64based Systems
  • Windows Server 2012 R2
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012
  • Windows Server 2008 R2 for x64based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2008 R2 for x64based Systems Service Pack 1
  • Windows Server 2008 for x64based Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for x64based Systems Service Pack 2
  • Windows Server 2008 for 32bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for 32bit Systems Service Pack 2
  • Windows Server 2022 (Server Core installation)
  • Windows Server 2022
  • Windows 10 Version 21H1 for 32bit Systems
  • Windows 10 Version 21H1 for ARM64based Systems
  • Windows 10 Version 21H1 for x64based Systems
  • Windows 10 for 32bit Systems
  • Windows 10 Version 21H2 for x64based Systems
  • Windows 10 Version 21H2 for ARM64based Systems
  • Windows 10 Version 21H2 for 32bit Systems
  • Windows 11 for ARM64based Systems
  • Windows 11 for x64based Systems
  • Windows Server, version 20H2 (Server Core Installation)
  • Windows 10 Version 20H2 for ARM64based Systems
  • Windows 10 Version 1909 for ARM64based Systems
  • Windows 10 Version 1909 for x64based Systems
  • Windows 10 Version 1909 for 32bit Systems
  • Windows Server 2019 (Server Core installation)
  • Windows Server 2019
  • Windows 10 Version 1809 for ARM64based Systems
  • Windows 10 Version 1809 for x64based Systems
  • Windows 10 Version 1809 for 32bit Systems
  • Windows Server 2012 R2 (Server Core installation)
  • Windows 8.1 for 32bit systems
  • Windows 7 for x64based Systems Service Pack 1
  • Windows 7 for 32bit Systems Service Pack 1
  • Windows Server 2016 (Server Core installation)

CVE-2022-21908 – Windows Installer Elevation of Privilege Vulnerability

Severity: Important

Affected Software

  • Windows Server 2012 R2 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012
  • Windows Server 2008 R2 for x64based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2008 R2 for x64based Systems Service Pack 1
  • Windows Server 2008 for x64based Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for x64based Systems Service Pack 2
  • Windows Server 2008 for 32bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for 32bit Systems Service Pack 2
  • Windows RT 8.1
  • Windows 8.1 for x64based systems
  • Windows 8.1 for 32bit systems
  • Windows 10 for x64based Systems
  • Windows 10 for 32bit Systems
  • Windows 10 Version 21H2 for x64based Systems
  • Windows 10 Version 21H2 for ARM64based Systems
  • Windows 10 Version 21H2 for 32bit Systems
  • Windows 11 for ARM64based Systems
  • Windows 11 for x64based Systems
  • Windows Server, version 20H2 (Server Core Installation)
  • Windows 7 for x64based Systems Service Pack 1
  • Windows 7 for 32bit Systems Service Pack 1
  • Windows Server 2016 (Server Core installation)
  • Windows Server 2016
  • Windows 10 Version 1607 for x64based Systems
  • Windows 10 Version 1607 for 32bit Systems
  • Windows 10 Version 20H2 for ARM64based Systems
  • Windows 10 Version 20H2 for 32bit Systems
  • Windows 10 Version 20H2 for x64based Systems
  • Windows Server 2022 (Server Core installation)
  • Windows Server 2022
  • Windows 10 Version 21H1 for 32bit Systems
  • Windows 10 Version 21H1 for ARM64based Systems
  • Windows 10 Version 21H1 for x64based Systems
  • Windows 10 Version 1909 for ARM64based Systems
  • Windows 10 Version 1909 for x64based Systems
  • Windows 10 Version 1909 for 32bit Systems
  • Windows Server 2019 (Server Core installation)
  • Windows Server 2019
  • Windows 10 Version 1809 for ARM64based Systems
  • Windows 10 Version 1809 for x64based Systems
  • Windows 10 Version 1809 for 32bit Systems

CVE-2022-21916 – Windows Common Log File System Driver Elevation of Privilege Vulnerability

Severity: Important

Affected Software

  • Windows Server 2012 R2 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012
  • Windows Server 2008 R2 for x64based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2008 R2 for x64based Systems Service Pack 1
  • Windows Server 2008 for x64based Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for x64based Systems Service Pack 2
  • Windows Server 2008 for 32bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for 32bit Systems Service Pack 2
  • Windows RT 8.1
  • Windows 8.1 for x64based systems
  • Windows 8.1 for 32bit systems
  • Windows 7 for x64based Systems Service Pack 1
  • Windows 7 for 32bit Systems Service Pack 1
  • Windows Server 2016 (Server Core installation)
  • Windows Server 2016
  • Windows 10 Version 1607 for x64based Systems
  • Windows 10 Version 1607 for 32bit Systems
  • Windows 10 for x64based Systems
  • Windows 10 for 32bit Systems
  • Windows 10 Version 21H2 for x64based Systems
  • Windows 10 Version 21H2 for ARM64based Systems
  • Windows 10 Version 21H2 for 32bit Systems
  • Windows 11 for ARM64based Systems
  • Windows 11 for x64based Systems
  • Windows Server, version 20H2 (Server Core Installation)
  • Windows 10 Version 20H2 for ARM64based Systems
  • Windows 10 Version 20H2 for 32bit Systems
  • Windows 10 Version 20H2 for x64based Systems
  • Windows Server 2022 (Server Core installation)
  • Windows Server 2022
  • Windows 10 Version 21H1 for 32bit Systems
  • Windows 10 Version 21H1 for ARM64based Systems
  • Windows 10 Version 21H1 for x64based Systems
  • Windows 10 Version 1909 for ARM64based Systems
  • Windows 10 Version 1909 for x64based Systems
  • Windows 10 Version 1909 for 32bit Systems
  • Windows Server 2019 (Server Core installation)
  • Windows Server 2019
  • Windows 10 Version 1809 for ARM64based Systems
  • Windows 10 Version 1809 for x64based Systems
  • Windows 10 Version 1809 for 32bit Systems