CWE
601
Advisory Published
CVE Published
Updated

CVE-2021-44528

First published: Tue Dec 14 2021(Updated: )

A open redirect vulnerability exists in Action Pack >= 6.0.0 that could allow an attacker to craft a "X-Forwarded-Host" headers in combination with certain "allowed host" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website.

Credit: support@hackerone.com support@hackerone.com support@hackerone.com

Affected SoftwareAffected VersionHow to fix
debian/rails
2:5.2.2.1+dfsg-1+deb10u3
2:5.2.2.1+dfsg-1+deb10u5
2:6.0.3.7+dfsg-2+deb11u2
2:6.1.7.3+dfsg-1
2:6.1.7.3+dfsg-2
debian/rails<=2:6.1.4.1+dfsg-8<=2:6.0.3.7+dfsg-2
Rubyonrails Rails=6.0.4.2
Rubyonrails Rails=6.1.4.2
Rubyonrails Rails=7.0.0-rc2
rubygems/actionpack>=6.1.0<=6.1.4.1
6.1.4.2
rubygems/actionpack>=6.0.0<=6.0.4.1
6.0.4.2
=6.0.4.2
=6.1.4.2
=7.0.0-rc2

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Frequently Asked Questions

  • What is CVE-2021-44528?

    CVE-2021-44528 is an open redirect vulnerability in Action Pack, a component of Ruby on Rails.

  • How does CVE-2021-44528 work?

    CVE-2021-44528 can be exploited by an attacker using specially crafted "X-Forwarded-Host" headers in combination with certain "allowed host" formats to redirect users to a malicious website.

  • Which applications are impacted by CVE-2021-44528?

    Applications using Action Pack versions between 6.0.0 and 6.0.4.1 or between 6.1.0 and 6.1.4.1 may be impacted by CVE-2021-44528.

  • How severe is CVE-2021-44528?

    CVE-2021-44528 has a severity rating of 6.1 (High).

  • What is the remedy for CVE-2021-44528?

    To mitigate CVE-2021-44528, upgrade to version 6.0.4.2 or 6.1.4.2 of Action Pack, which contain the necessary fixes.

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