Vulnerability identifier: #VU75901

Vulnerability risk: High

CVSSv3.1: 6.4 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-24932

CWE-ID: CWE-254

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Windows
Operating systems & Components / Operating system
Windows Server
Operating systems & Components / Operating system

Vendor: Microsoft

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to improper implementation of the Secure Boot feature. An attacker with physical access to the system or a local user with Administrative rights can bypass Secure Boot.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 10 1809 10.0.17763.1, 10 20H2 10.0.19042.572, 11 21H2 10.0.22000.194, 10 1607 10.0.14393.10, 11 22H2 10.0.22621.521, 10 22H2 10.0.19045.2130, 10 21H2 10.0.19044.1288, 10 21H1 10.0.19043.985, 10 1507 10.0.10240.16405, 10 2004 10.0.19041.264, 10 1909 10.0.18363.476, 10 1903 10.0.18362.116, 10 1803 10.0.17134.48, 10 1709 10.0.16299.19, 10 1703 10.0.15063.138, 10 1511 10.0.10586.3

Windows Server: 2008 - 2022 20H2

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-24932

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.