The Shibboleth authentication system includes countermeasures such as cookies and time-based authenticators to prevent replay attacks, also the tickets issued are stored to insure one-time use and are not valid after they have been verified.
The Shibboleth authentication system includes countermeasures such as cookies and time-based authenticators to prevent replay attacks, also the tickets issued are stored to insure one-time use and are not valid after they have been verified.