Using of AllowAnonymous in Login and Register to Secure Method

 [AllowAnonymous]
 public ActionResult Login(string returnUrl)

 [HttpPost]
 [AllowAnonymous]
 [ValidateAntiForgeryToken]
 public ActionResult Login(LoginModel model, string returnUrl)

 [AllowAnonymous]
 public ActionResult Register()

 [HttpPost]
 [AllowAnonymous]
 [ValidateAntiForgeryToken]
 public ActionResult Register(RegisterModel model)