# rails vulnerable to improper authentication

Advisory record · `GHSA-rxq3-gm4p-5fj4`

- **Identifiers:** `GHSA-rxq3-gm4p-5fj4` · `CVE-2009-2422`
- **State:** Confirmed
- **Severity:** CVSS 9.8 Critical
- **Critical:** Yes: CVSS 9+
- **Weakness (CWE):** [CWE-287](https://cwe.mitre.org/data/definitions/287.html)
- **Tags:** [Authentication bypass](https://agentprime.io/advisories/tag/auth-bypass.md)
- **Published:** 24 Oct 2017
- **Updated:** 16 Feb 2024
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 24 Oct 2017, 18:33 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Critical

Critical, because:

- CVSS score 9.8: 9.0 or more.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected packages

- `rails` (RubyGems): affected `<2.3.3`; fixed in `2.3.3`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 9.8 Critical, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.034, the 88th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 24 Oct 2017. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-rxq3-gm4p-5fj4](https://github.com/advisories/GHSA-rxq3-gm4p-5fj4)
- [OSV: GHSA-rxq3-gm4p-5fj4](https://osv.dev/vulnerability/GHSA-rxq3-gm4p-5fj4)
- <https://nvd.nist.gov/vuln/detail/CVE-2009-2422>
- <https://exchange.xforce.ibmcloud.com/vulnerabilities/51528>
- <https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rails/CVE-2009-2422.yml>
- <https://web.archive.org/web/20090711160153/http://secunia.com/advisories/35702>
- <https://web.archive.org/web/20200229192617/http://www.securityfocus.com/bid/35579>
- <http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html>
- <http://n8.tumblr.com/post/117477059/security-hole-found-in-rails-2-3s>
- <http://support.apple.com/kb/HT4077>
- <http://weblog.rubyonrails.org/2009/6/3/security-problem-with-authenticate_with_http_digest>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-rxq3-gm4p-5fj4>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-rxq3-gm4p-5fj4/>. Everything for agents: <https://agentprime.io/llms.txt>.