Skip to main content
← All vulnerabilities
CVE-2021-22964GHSA-PGH6-M65R-2RHQ

A redirect vulnerability in the `fastify-static` module version >= 4.2.4 and < 4.4.1 allows remote attackers to redirect Mozilla Firefox use

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 4.4.1
None on Exploit-DB, Metasploit or GitHub

Summary

A redirect vulnerability in the `fastify-static` module version >= 4.2.4 and < 4.4.1 allows remote attackers to redirect Mozilla Firefox users to arbitrary websites via a double slash `//` followed by a domain: `http://localhost:3000//a//youtube.com/%2e%2e%2f%2e%2e`.A DOS vulnerability is possible if the URL contains invalid characters `curl --path-as-is "http://localhost:3000//^/.."`The issue shows up on all the `fastify-static` applications that set `redirect: true` option. By default, it is `false`.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • n/a https://github.com/fastify/fastify-static

    Version range not reported

  • fastify-staticnpm

    From 4.2.4 · fixed in 4.4.1

References 1

hackerone.com