Command and Control
The Host Authorization middleware in Action Pack before 126.96.36.199, 188.8.131.52 suffers from an open redirect vulnerability. Specially crafted
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. 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.