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Open Redirect Affecting actionpack package, versions >=6.0.0, <6.0.3.5 >=6.1.0.rc1, <6.1.2.1

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required

    Threat Intelligence

    EPSS 0.23% (61st percentile)
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NVD
6.1 medium
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Red Hat
6.1 medium

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  • Snyk ID SNYK-RUBY-ACTIONPACK-1080916
  • published 2 Mar 2021
  • disclosed 11 Feb 2021
  • credit Tyler Kennedy (TkTech)
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Introduced: 11 Feb 2021

CVE-2021-22881 Open this link in a new tab
CWE-601 Open this link in a new tab

How to fix?

Upgrade actionpack to version 6.0.3.5, 6.1.2.1 or higher.

Overview

Affected versions of this package are vulnerable to Open Redirect. Specially crafted Host headers in combination with certain allowed host formats can cause the Host Authorization middleware in ActionPack to redirect users to a malicious website. When an allowed host contains a leading dot, a specially crafted Host header can be used to redirect to a malicious website.