Untrusted search path in NGINX Controller - CVE-2020-27730
Published: December 11, 2020 / Updated: December 17, 2020
Vulnerability identifier: #VU49051
CSH Severity: Low
CVSS v4: 8.2 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N]
CVE-ID: CVE-2020-27730
CWE-ID: CWE-426
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 NGINX Controller Agent does not use absolute paths when calling system utilities. A local user can place a specially crafted file in the agent working directory and execute arbitrary code on the system with root privileges.
Affected software
NGINX Controller
How to mitigate CVE-2020-27730
Install update from vendor's website.
NGINX Controller - update to 3.10.0