Ruby on Rails URL Redirection to Untrusted Site (Open Redirect) Vulnerability - CVE-2021-22881 - Vulnerability Database

Ruby on Rails URL Redirection to Untrusted Site (Open Redirect) Vulnerability - CVE-2021-22881

Medium
Reference: CVE-2021-22881
Title: Ruby on Rails URL Redirection to Untrusted Site (Open Redirect) Vulnerability
Overview:

The Host Authorization middleware in Action Pack before 6.1.2.1 6.0.3.5 suffers from an open redirect vulnerability. Specially crafted Host headers in combination with certain quotallowed hostquot formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website. Impacted applications will have allowed hosts with a leading dot. When an allowed host contains a leading dot a specially crafted Host header can be used to redirect to a malicious website.