Permissions, Privileges, and Access Controls in Windows and Windows Server - CVE-2019-1130
Published: July 10, 2019 / Updated: May 23, 2022
Vulnerability identifier: #VU19121
CSH Severity: Low
CVSS v4.0: 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:A/U:Clear
CVE-ID: CVE-2019-1130
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the way Windows AppX Deployment Service (AppXSVC) handles hard links. A local user can create a hard link to a critical file on the system and gain full control over that file.
Successful exploitation of the vulnerability may allow an attacker to gain elevated privileges.
How to mitigate CVE-2019-1130
Install update from vendor's website.