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I have written the following code, I do not know what is the best way to get the user name and password retrieved the next time the user logs in.
Below is the action i call when user submits the user id and password:

        public ActionResult Login(Login loginUser,string ReturnUrl = "")
            ViewBag.loginErrorMsg = string.Empty;
            #region Style 1
            if (ModelState.IsValid)
                if (loginUser.Username != null && IsAuthenticated(loginUser))
                    var authTicket = new FormsAuthenticationTicket(
                                                  loginUser.Username,  //user id
                                                  DateTime.Now.AddMinutes(20),  // expiry
                                                  loginUser.RemeberMe,  //true to remember
                                                  "", //roles 

                    //encrypt the ticket and add it to a cookie
                    HttpCookie cookie = new HttpCookie(FormsAuthentication.FormsCookieName, FormsAuthentication.Encrypt(authTicket));
                    FormsAuthentication.RedirectFromLoginPage(loginUser.Username, false);
                    ViewBag.loginErrorMsg = Constants.LoginErrMsg;

            return View();

Although i tried various ways to retrieve the password they did not help.
The code at the Login view action is simple as of now:

      public ActionResult Login()
          return View("Login");

I am not getting the password in the action Login(). Please let me know how can i retrieve the saved password in case the user checked in remember me in his previous login.
Updated 6-Oct-15 2:32am
John C Rayan 6-Oct-15 7:43am
Are you sure about this code? IsAuthenticated(loginUser).
Shouldn't be !IsAuthenticated(loginUser) 6-Oct-15 9:32am
IsAuthenticated is good. Cookie is created only when user is a valid user only.
therefore if (loginUser.Username != null && IsAuthenticated(loginUser))
IsAuthenticated(loginUser) - true for valid users
Sinisa Hajnal 6-Oct-15 7:54am
Is cookie created?
Does it contain the ticket?
Can you read the cookie on next login?
Is the ticket still valid? 6-Oct-15 9:33am
Cookie is created and encrypted also. I can't read the cookie at next login. I don't think the ticket is valid till next login.

1 solution

If you're going to manually create the authentication cookie, then you need to make sure it's set to "HTTP only". This ensures that the cookie cannot be stolen via a Cross-Site Scripting vulnerability.

If you want the user to be remembered, then simply increase the duration of the authentication ticket:
DateTime utcNow = DateTime.UtcNow;

DateTime utcExpires = loginUser.RemeberMe 
    ? utcNow.AddDays(5) 
    : utcNow.AddMinutes(20);

var authTicket = new FormsAuthenticationTicket(

HttpCookie cookie = new HttpCookie(FormsAuthentication.FormsCookieName, FormsAuthentication.Encrypt(authTicket));
cookie.HttpOnly = true;

if (loginUser.RemeberMe)
    cookie.Expires = authTicket.Expiration;


Attempting to "remember" the user's password is an extremely bad idea, and will lead to serious security vulnerabilities in your application.

How to build (and how not to build) a secure "remember me" feature | Troy Hunt[^]
Comments 6-Oct-15 9:57am
Thanks Richard, i don't want to built it in this way in case it is a threat. Please could you suggest me a better way in which i can give the remember me option in a secure way to my MVC application?
Richard Deeming 6-Oct-15 10:02am
Yes - read this[^].

Then read this[^].

What you are asking for is going to be a much bigger security vulnerability than extending the duration of the authentication ticket, however you implement it. 7-Oct-15 4:45am
hi Richard, I tried the above but i was not able to keep the cookie session after Logout. Anyways i am not going to use remember me feature so not really an issue.

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