Privilege escalation in Microsoft Windows Secure kernel mode

1) Improper access control

EUVDB-ID: #VU95525

Risk: Low

CVSSv3.1: 5.5 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2024-21302

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper access restrictions within the Virtualization Based Security (VBS) implementation. A local privileged user can circumvent some features of VBS and exfiltrate data protected by VBS, leading to privilege escalation.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Windows: 10 - 11 23H2 10.0.22631.3880

Windows Server: 2016 10.0.14393.10 - 2022 23H2 10.0.25398.887

External links

http://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21302

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?

No. We are not aware of malware exploiting this vulnerability.