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OpenAdvisories
High · 8.8 CVE-2021-22964 EUVD-2021-2236GHSA-pgh6-m65r-2rhq

DOS and Open Redirect with user input

Published Oct 14, 2021 · Updated Aug 3, 2024 · Assigned by hackerone

Description

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`.

Affected products

VendorProductAffectedFixed
— https://github.com/fastify/fastify-static Affected >= v4.2.4, Fixed v4.4.1 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm fastify-static >= 4.2.4, < 4.4.1 4.4.1 GHSA-pgh6-m65r-2rhq

References