Permissions, Privileges, and Access Controls in IBM AIX - CVE-2020-4887
Published: January 20, 2021 / Updated: January 20, 2021
Vulnerability identifier: #VU49885
CSH Severity: Low
CVSS v4: 8.5 [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]
CVE-ID: CVE-2020-4887
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the gencore user command allows files creation wit arbitrary content in any directory on the system. A local user can abuse this behavior and execute arbitrary code with elevated privileges.
Affected software
IBM AIX
IBM VIOS
IBM VIOS
How to mitigate CVE-2020-4887
Install updates from vendor's website.