Advisory Weakness Curation

Devise Gem for Ruby Unauthorized Access Using "Remember Me" Cookie Devise version before 3.5.4 uses cookies to implement a "Remember me" functionality. However, it generates the same cookie for all devices. If an attacker manages to steal a remember me cookie and the user does not change the password frequently, the cookie can be used to gain access to the application indefinitely.

Unauthorized Access Using remember-me Cookie Devise uses cookies to implement a remember-me functionality. However, it generates the same cookie for all devices. If an attacker manages to steal a remember-me cookie and the user does not change the password frequently, the cookie can be used to gain access to the application indefinitely. The bug can only be exploited if the attacker can steal cookies in the first place.