DESCRIPTION:
A vulnerability (CVE-2023-21674) exists in the Winodws operation system allows a local attacker to escalate privileges from sandboxed execution inside Chromium to kernel-level execution and full SYSTEM privileges.
AFFECTED RELEASES:
Windows 8.1 for 32-bit systems
Windows 8.1 for x64-based systems
Windows RT 8.1
Windows 10 for 32-bit Systems
Windows 10 for x64-based Systems
Windows 10 Version 1607 for 32-bit Systems
Windows 10 Version 1607 for x64-based Systems
Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1809 for ARM64-based Systems
Windows 10 Version 1809 for x64-based Systems
Windows 10 Version 20H2 for 32-bit Systems
Windows 10 Version 20H2 for ARM64-based Systems
Windows 10 Version 20H2 for x64-based Systems
Windows 10 Version 21H2 for 32-bit Systems
Windows 10 Version 21H2 for ARM64-based Systems
Windows 10 Version 21H2 for x64-based Systems
Windows 10 Version 22H2 for 32-bit Systems
Windows 10 Version 22H2 for ARM64-based Systems
Windows 10 Version 22H2 for x64-based Systems
Windows 11 version 21H2 for ARM64-based Systems
Windows 11 version 21H2 for x64-based Systems
Windows 11 Version 22H2 for ARM64-based Systems
Windows 11 Version 22H2 for x64-based Systems
Windows Server 2012 R2
Windows Server 2012 R2(Server Core installation)
Windows Server 2016
Windows Server 2016(Server Core installation)
Windows Server 2019
Windows Server 2019(Server Core installation)
Windows Server 2022
Windows Server 2022(Server Core installation)
SOLUTION:
1. Users and system administrators of affected products are advised to apply the security updates by the following URL:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674
REFERENCE:
1. https://nvd.nist.gov/vuln/detail/CVE-2023-21674
2. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674
3. https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-21674
4. https://zh-tw.tenable.com/plugins/nessus/169777
5. https://blog.billows.com.tw/?p=2331
6. https://www.zerodayinitiative.com/blog/2023/1/10/the-january-2023-security-update-review