#VU23506 Permissions, Privileges, and Access Controls in Windows and Windows Server - CVE-2019-1483

Vulnerability identifier: #VU23506

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-1483

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 an error in junctions handling within the Windows AppX Deployment Server. A local user to run a specially crafted program to escalate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Windows: 10 1709 10.0.16299.19, 10 1803 10.0.17134.48, 10 1809 10.0.17763.1, 10 1903 10.0.18362.116, 10 1909 10.0.18363.476

Windows Server: 2019 10.0.17763.1 - 2019 1909

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External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1483

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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.