#VU21675 Permissions, Privileges, and Access Controls in Windows and Windows Server - CVE-2019-1336

Vulnerability identifier: #VU21675

Vulnerability risk: Low

CVSSv4.0: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-1336

CWE-ID: CWE-264

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 Windows Update Client does not properly handle privileges. A local authenticated user can run a specially crafted application and run processes in an elevated context.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 10 1809 10.0.17763.1, 10 1903 10.0.18362.116

Windows Server: 2019 10.0.17763.1 - 2019 1903

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External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1336

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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.