How to track expired WIF fedauth cookies?

Question

I have an interesting problem with trying to keep track of expired WIF authentication sessions/cookies.

As a bit of background: the site is MVC 3, uses Windows Identity

Answer 1

I was tasked with a similar request by our security team. I opted to store the asp.net session id in the OWIN cookie and on each request that contained a session id in the cookie I verify it matches the active session's Id.

Store session id in the cookie (adapted from this answer) at the end of the first request that is authenticated and doesn't already have the session id in the cookie:

protected override void OnActionExecuted(ActionExecutedContext filterContext)
    { 
        base.OnActionExecuted(filterContext);

        bool authenticated = User.Identity.IsAuthenticated;

        var sessionGuid = (User as ClaimsPrincipal).FindFirst("sessionID")?.Value;

        //put the SessionID into the cookie.
        if (authenticated && string.IsNullOrEmpty(sessionGuid))
        {
            var id= Session.SessionID;

            //update the guid claim to track with the session
            var authenticationManager = HttpContext.GetOwinContext().Authentication;

            // create a new identity from the old one
            var identity = new ClaimsIdentity(User.Identity);

            // update claim value
            identity.RemoveClaim(identity.FindFirst("sessionID"));
            identity.AddClaim(new Claim("sessionID", id));

            // tell the authentication manager to use this new identity
            authenticationManager.AuthenticationResponseGrant =
                new AuthenticationResponseGrant(
                    new ClaimsPrincipal(identity),
                    new AuthenticationProperties { IsPersistent = true }
                );
        }
    } 

Then on each future request if I find a session in the cookie compare it to active session. If they don't match then logout:

protected override void OnActionExecuting( ActionExecutingContext filterContext)
    {
        var claim = (User as ClaimsPrincipal).FindFirst("sessionID")?.Value;

        //does the owin cookie have a sessionID?
        if (!string.IsNullOrEmpty(claim))
        {
            string session = Session.SessionID;

            //does it match the one stored in the session?
            if(session != claim)
            {
                //no? log the user out again..
                Session.Abandon();

                //redirect to logged out page
                this.Request.GetOwinContext().Authentication.SignOut();

                //tell them its over..
                Response.Write("Expired Session");

                Response.End();
            }
        }

        base.OnActionExecuting(filterContext);
    }