CVEvulnerability

CVE-2022-0547

9.8 CRITICAL Published 2022-03-18 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-03-18
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-287, CWE-305

Description

OpenVPN 2.1 until v2.4.12 and v2.5.6 may enable authentication bypass in external authentication plug-ins when more than one of them makes use of deferred authentication replies, which allows an external user to be granted access with only partially correct credentials.

Affected configurations

• openvpn openvpn (>= 2.1.0 < 2.4.12) • openvpn openvpn (>= 2.5.0 < 2.5.6) • fedoraproject fedora 34 • fedoraproject fedora 36 • debian debian linux 9.0

Related

Weakness · CWE (2)

  • CWE-287 Improper Authentication weakness
  • CWE-305 Authentication Bypass by Primary Weakness weakness

References