Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2021-3547
CVE-2021-3547:
OpenVPN vulnerability analysis and mitigation
Overview
CVE-2021-3547 affects OpenVPN 3 Core Library versions 3.6 and 3.6.1. The vulnerability was discovered and recorded on May 11, 2021, with public disclosure following on July 12, 2021 (NVD).
Technical details
The vulnerability is classified as an improper certificate validation issue (CWE-295) with a CVSS v3.1 base score of 7.4 (HIGH). The vulnerability vector is CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N, indicating network accessibility with high attack complexity, no privileges required, no user interaction needed, and potential for high confidentiality and integrity impacts (NVD).
Impact
The vulnerability allows a man-in-the-middle attacker to bypass certificate authentication by issuing an unrelated server certificate using the same hostname found in the verify-x509-name option in a client configuration. This could lead to unauthorized access and potential compromise of secure communications (NVD).
Additional resources
Source: This report was generated using AI
Related OpenVPN vulnerabilities:
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