Permissions, Privileges, and Access Controls in FreeBSD - CVE-2020-25582
Published: March 2, 2021
Vulnerability identifier: #VU51108
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-25582
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: FreeBSD Foundation
Affected software:
FreeBSD
FreeBSD
Detailed vulnerability description
The vulnerability allows a local privileged user to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions. A process with superuser privileges running inside a jail could change the root directory outside of the jail, thereby gaining full read and writing access to all files and directories in the system.
How to mitigate CVE-2020-25582
Install updates from vendor's website.