Vulnerability identifier: #VU77251

Vulnerability risk: Low

CVSSv3.1: 8.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-29360

CWE-ID: CWE-822

Exploitation vector: Local

Exploit availability: Yes

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 untrusted pointer dereference in Windows TPM Device Driver mskssrv. A local user can trigger memory corruption and execute arbitrary code with SYSTEM privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 10 1809 10.0.17763.1, 11 21H2 10.0.22000.194, 10 1607 10.0.14393.10, 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 20H2 10.0.19042.572, 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, 11 22H2 10.0.22621.521

Windows Server: 2016 10.0.14393.10 - 2022 20H2

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-29360
http://www.zerodayinitiative.com/advisories/ZDI-23-885/

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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.