Improper Authentication in OpenVPN for Windows - CVE-2022-0547
Published: March 24, 2022
Vulnerability identifier: #VU61608
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-0547
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenVPN
Affected software:
OpenVPN for Windows
OpenVPN for Windows
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error when processing authentication requests in external authentication plug-ins when more than one of them makes use of deferred authentication replies. A remote attacker can bypass authentication process and gain unauthorized access to the network with only partially correct credentials.
How to mitigate CVE-2022-0547
Install updates from vendor's website.