#VU95525 Improper access control in Windows and Windows Server


Vulnerability identifier: #VU95525

Vulnerability 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

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 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 1809 10.0.17763.1 - 10 1809 10.0.17763.6054, 11 21H2 10.0.22000.194 - 11 21H2 10.0.22000.3079, 10, 10 1607 10.0.14393.10 - 10 1607 10.0.14393.7159, 11 23H2 10.0.22631.2428 - 11 23H2 10.0.22631.3880, 11 22H2 10.0.22621.521 - 11 22H2 10.0.22621.9630, 11, 10 10.0.10240.20710, 10 22H2 10.0.19045.2251 - 10 22H2 10.0.19045.4651, 10 21H2 10.0.19043.4529 - 10 21H2 10.0.19044.4651, 10 10.0.10240.20680, 10 10.0.10240.20651, 10 21H1 10.0.19043.1023 - 10 21H1 10.0.19043.2364, 10 20H2 10.0.19042.610 - 10 20H2 10.0.19042.2965, 10 2004 10.0.19041.329 - 10 2004 10.0.19041.1415, 10 1909 10.0.18363.535 - 10 1909 10.0.18363.2274, 10 1903 10.0.18362.145 - 10 1903 10.0.18362.1256, 10 1803 10.0.17134.1365 - 10 1803 10.0.17134.2208

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.


Latest bulletins with this vulnerability