#VU103686 Improper authentication in nginx and NGINX Plus - CVE-2025-23419
Published: February 6, 2025 / Updated: February 11, 2025
Vulnerability identifier: #VU103686
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-23419
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
nginx
NGINX Plus
nginx
NGINX Plus
Software vendor:
F5 Networks
F5 Networks
Description
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an TLS session resumption when handling client certificate authentication. A remote attacker can bypass authentication process and gain unauthorized access to the application.
Successful exploitation of the vulnerability requires that name-based virtual hosts are configured to share the same IP address and port combination and have TLS 1.3 and OpenSSL. This vulnerability arises when TLS session tickets are used and/or the SSL session cache is used in the default virtual server and the default virtual server is performing client certificate authentication.
Remediation
Install updates from vendor's website.