# Puppet arbitrary files overwrite via a symlink attack

Advisory record · `GHSA-vrh7-99jh-3fmm`

- **Identifiers:** `GHSA-vrh7-99jh-3fmm` · `CVE-2010-0156`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **Weakness (CWE):** [CWE-59](https://cwe.mitre.org/data/definitions/59.html)
- **Tags:** [Path traversal](https://agentprime.io/advisories/tag/path-traversal.md)
- **Published:** 2 May 2022
- **Updated:** 3 Dec 2024
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 2 May 2022, 06:10 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `puppet` (RubyGems): affected `>=0.24.0, <0.24.9 || >=0.25.0, <0.25.2`; fixed in `0.24.9`, `0.25.2`

## 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

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0032, the 25th percentile, on 9 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 2 May 2022. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-vrh7-99jh-3fmm](https://github.com/advisories/GHSA-vrh7-99jh-3fmm)
- [OSV: GHSA-vrh7-99jh-3fmm](https://osv.dev/vulnerability/GHSA-vrh7-99jh-3fmm)
- <https://nvd.nist.gov/vuln/detail/CVE-2010-0156>
- <https://github.com/puppetlabs/puppet/commit/0aae57f91dc69b22fb674f8de3a13c22edd07128>
- <https://github.com/puppetlabs/puppet/commit/6111ba80f2c6f6d1541af971f565119e6e03d77d>
- <https://bugzilla.redhat.com/show_bug.cgi?id=502881>
- <https://github.com/puppetlabs/puppet>
- <https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puppet/CVE-2010-0156.yml>
- <https://puppet.com/security/cve/cve-2010-0156>
- <https://web.archive.org/web/20100316113904/http://secunia.com/advisories/38766>
- <http://groups.google.com/group/puppet-announce/browse_thread/thread/4401823f6cbf6087>
- <http://groups.google.com/group/puppet-announce/browse_thread/thread/73cd1b2896d986c2>
- <http://lists.fedoraproject.org/pipermail/package-announce/2010-March/036083.html>
- <http://lists.fedoraproject.org/pipermail/package-announce/2010-March/036166.html>

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-vrh7-99jh-3fmm>, 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-vrh7-99jh-3fmm/>. Everything for agents: <https://agentprime.io/llms.txt>.