Open Redirect Affecting serve-static package, versions <1.6.5 >=1.7.0 <1.7.2


0.0
low

Snyk CVSS

    Attack Complexity High
    User Interaction Required

    Threat Intelligence

    EPSS 0.35% (71st percentile)
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NVD
4.3 medium

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  • Snyk ID npm:serve-static:20150113
  • published 13 Jan 2015
  • disclosed 13 Jan 2015
  • credit Pierre-Élie Fauché

How to fix?

  • Update to version 1.7.2 or greater (or 1.6.5 if sticking to the 1.6.x line).
    • Disable redirects if not using the feature with 'redirect: false' option and cannot upgrade.

Overview

When using serve-static middleware version < 1.7.2 and it's configured to mount at the root, it creates an open redirect on the site.

Source: Node Security Project

Details

For example:

If a user visits http://example.com//www.google.com/%2e%2e they will be redirected to //www.google.com/%2e%2e, which some browsers interpret as http://www.google.com/%2e%2e.