#VU79237 Permissions, Privileges, and Access Controls in Windows Server - CVE-2023-36876

Vulnerability identifier: #VU79237

Vulnerability risk: Low

CVSSv4.0: 4.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-36876

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
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 application does not properly impose security restrictions in Reliability Analysis Metrics Calculation (RacTask), which leads to security restrictions bypass and privilege escalation.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows Server: 2008 R2, 2019 10.0.17763.1 - 2019 2004, 2022 10.0.20348.202 - 2022 20H2

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External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-36876

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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?

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