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Open Redirect Affecting fastify-static package, versions <4.2.4

0.0
low

Snyk CVSS

    Attack Complexity High

    Threat Intelligence

    EPSS 0.15% (51st percentile)
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NVD
6.1 medium

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  • Snyk ID SNYK-JS-FASTIFYSTATIC-1728398
  • published 6 Oct 2021
  • disclosed 5 Oct 2021
  • credit drstrnegth
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Introduced: 5 Oct 2021

CVE-2021-22963 Open this link in a new tab
CWE-601 Open this link in a new tab

How to fix?

Upgrade fastify-static to version 4.2.4 or higher.

Overview

fastify-static is a plugin for serving static files as fast as possible.

Affected versions of this package are vulnerable to Open Redirect. It allows remote attackers to redirect Mozilla Firefox users to arbitrary websites via a double slash // followed by a domain - http://localhost:3000//google.com/%2e%2e.

The issue shows up on all the fastify-static applications that set the redirect: true option, which is false by default.