CVE-2021-38633
vulnerability analysis and mitigation

Overview

The Windows Common Log File System Driver Elevation of Privilege Vulnerability (CVE-2021-38633) was disclosed on September 15, 2021. This vulnerability affects multiple versions of Microsoft Windows operating systems, including Windows 10, Windows Server 2016/2019/2022, Windows 7 SP1, Windows 8.1, and Windows RT 8.1 (NVD).

Technical details

The vulnerability has been assigned a CVSS v3.1 base score of 7.8 (High) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. It is classified under CWE-269 (Improper Privilege Management). The vulnerability requires local access with low attack complexity and low privileges to exploit, but no user interaction is needed (NVD).

Impact

Successful exploitation of this vulnerability could allow an attacker to gain elevated privileges on the affected system, potentially leading to complete system compromise with high impacts on confidentiality, integrity, and availability (Checkpoint).

Mitigation and workarounds

Microsoft has released security patches to address this vulnerability. Users are advised to apply the appropriate security updates through the Microsoft security advisory (MSRC).

Additional resources


SourceThis report was generated using AI

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