What’s Vulnerable › Vulnerabilities

CVE-2022-4967

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-14 · updated 2026-06-17

Description

strongSwan versions 5.9.2 through 5.9.5 are affected by authorization bypass through improper validation of certificate with host mismatch (CWE-297). When certificates are used to authenticate clients in TLS-based EAP methods, the IKE or EAP identity supplied by a client is not enforced to be contained in the client's certificate. So clients can authenticate with any trusted certificate and claim an arbitrary IKE/EAP identity as their own. This is problematic if the identity is used to make policy decisions. A fix was released in strongSwan version 5.9.6 in August 2022 (e4b4aabc4996fc61c37deab7858d07bc4d220136).

Affected products

• strongSwan: from 5.9.2 before 5.9.6 — fixed in 5.9.6

How to fix

Upgrade to a fixed version: strongSwan 5.9.6. Check the vendor advisory for mitigations.

References

• https://github.com/strongswan/strongswan/commit/e4b4aabc4996fc61c37deab7858d07bc4d220136
• https://security.netapp.com/advisory/ntap-20240614-0006/
• https://www.cve.org/CVERecord?id=CVE-2022-4967
• https://www.strongswan.org/blog/2024/05/13/strongswan-vulnerability-(cve-2022-4967).html
• https://github.com/strongswan/strongswan/commit/e4b4aabc4996fc61c37deab7858d07bc4d220136
• https://security.netapp.com/advisory/ntap-20240614-0006/
• https://www.cve.org/CVERecord?id=CVE-2022-4967
• https://www.strongswan.org/blog/2024/05/13/strongswan-vulnerability-(cve-2022-4967).html

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