Zscaler Security Advisories

Security Advisory - October 11, 2022

Zscaler protects against 5 new vulnerabilities for Windows

  1. Overview
  2. CVE-2022-38051 – Windows Graphics Component Elevation of Privilege Vulnerability
  3. CVE-2022-37970 – Windows DWM Core Library Elevation of Privilege Vulnerability
  4. CVE-2022-38050 – Win32k Elevation of Privilege Vulnerability
  5. CVE-2022-37989 – Windows Client Server Run-time Subsystem (CSRSS) Elevation of Privilege Vulnerability
  6. CVE-2022-38053 – Microsoft SharePoint Server Remote Code Execution Vulnerability

Zscaler, working with Microsoft through their MAPP program, has proactively deployed protection for the following 5 vulnerabilities included in the October 2022 Microsoft security bulletins. Zscaler will continue to monitor exploits associated with all vulnerabilities in the October release and deploy additional protections, as necessary.

CVE-2022-38051 – Windows Graphics Component Elevation of Privilege Vulnerability

Severity: Important

Subscriptions Required

  • Advanced Threat Protection
  • Advanced Cloud Sandbox

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 11 Version 22H2 for x64based Systems
  • Windows 11 Version 22H2 for ARM64based 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 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 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-2022-37970 – Windows DWM Core Library Elevation of Privilege Vulnerability

Severity: Important

Subscriptions Required

  • Advanced Threat Protection
  • Advanced Cloud Sandbox

Affected Software

  • Windows 11 Version 22H2 for x64based Systems
  • Windows 11 Version 22H2 for ARM64based 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 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 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-2022-38050 – Win32k Elevation of Privilege Vulnerability

Severity: Important

Subscriptions Required

  • Advanced Threat Protection
  • Advanced Cloud Sandbox

Affected Software

  • Windows 11 Version 22H2 for x64based Systems
  • Windows 11 Version 22H2 for ARM64based 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 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 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-2022-37989 – Windows Client Server Run-time Subsystem (CSRSS) Elevation of Privilege Vulnerability

Severity: Important

Subscriptions Required

  • Advanced Threat Protection
  • Advanced Cloud Sandbox

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 11 Version 22H2 for x64based Systems
  • Windows 11 Version 22H2 for ARM64based 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 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 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-2022-38053 – Microsoft SharePoint Server Remote Code Execution Vulnerability

Severity: Important

Subscriptions Required

  • Advanced Threat Protection

Affected Software

  • Windows Microsoft SharePoint Foundation 2013 Service Pack 1
  • Microsoft SharePoint Server Subscription Edition
  • Microsoft SharePoint Server 2019
  • Microsoft SharePoint Enterprise Server 2013 Service Pack 1
  • Microsoft SharePoint Enterprise Server 2016