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CVE-2021-3547

HIGH

7.4

Description

OpenVPN 3 Core Library version 3.6 and 3.6.1 allows a man-in-the-middle attacker to bypass the certificate authentication by issuing an unrelated server certificate using the same hostname found in the verify-x509-name option in a client configuration.

CVE Details

CVSS v3.1 Score7.4

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published7/12/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

openvpn:openvpn

Weaknesses (CWE)

CWE-305CWE-295

References

https://community.openvpn.net/openvpn/wiki/CVE-2021-3547(security@openvpn.net)

https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements(security@openvpn.net)

https://community.openvpn.net/openvpn/wiki/CVE-2021-3547(af854a3a-2127-422b-91ae-364da2661108)

https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.