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CVE-2021-3547 Detail

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://community.openvpn.net/openvpn/wiki/CVE-2021-3547 Patch  Vendor Advisory 
https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-295 Improper Certificate Validation cwe source acceptance level NIST  
CWE-305 Authentication Bypass by Primary Weakness OpenVPN Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-3547
NVD Published Date:
07/12/2021
NVD Last Modified:
10/27/2022
Source:
OpenVPN Inc.