Security :: Handling Session Timeout With Forms Authentication?
May 13, 2010
I have 3 seperate applications (under the same domain) for which I use Forms authentication with single sign-on.
The 3 applications have different session timeout periods. I was on various articles that when we use forms authentication and specify the loginurl in the <Forms> tag in the web.config, it should automatically get redirected to the login page, when the session timesout. But in my case, it doesn't happen, I think because of different timeout values.
I create an authentication cookie (ticket) with an expiration date of one day.The cookie'sIsPersistent is set to true.
I do not use any session variables.
Session timeout is the default 20 minutes.
Here's the problem:
When the session times out in 20 minutes, the user is redirected to the logon page even though the authentication cookie has not expired.
Why does this happen? I thought the cookie and the session worked independently. Shouldn't the user remain logged in as long as the cookie hasn't expired?
I am trying to force to show to the Logon popup when the session is timeout in Integrated Windows Authentication Enabled website. The session_timeout is firing during the session timeout, but the User.Identity.IsAuthenticated is true. How force to use the Windows Logon Screen when the session is timeout.
I am manually maintaining WCF Session. When client login a GUID is given to the client as sessionId. All others methods have sessionId as parameter that client will provide.Every thing working fine. Now how can i manually manage Session Timeout ?
how to redirect to a custom URL on Forms Authentication timeout? The timeout is working but it is only caught when I try to go to a page in my application because each Page_Load method is wrapped in a custom IsLoggedIn method. Here is the settings I have so far in the Web.config.
In our application we are using forms authentication, we have given defaulturl also in the config file. But the problem is that it is not getting redirected to the default url when the session timeout is occuring.
I am trying to build an ASP.NET site that allows each user to set their own session timeout value. Basically from the user's perspective if they set their timeout value to 30 then that means that after 30 minutes of inactivity they are required to re-authenticate. If they set their timeout value to 0 then that means that they can leave the browser open as long as they want and their session never expires - they never have to re-authenticate. This is different than "remember me" functionality. If they close their browser they will have to re-authenticate.
Currently I am using Forms Authentication in my application and I have one object that I am storing in ASP.NET session. This object is a custom User object that has a number of different pieces of information about the current user.
What code would I need to write so that after successful login, the system has the proper authentication ticket and the proper session expiration value? I keep thinking I have this working and then I notice weird time outs where the system seems to think I am authenticated but my session has expired.
Currently on my login page I am using an ASP.NET login control. i have custom code in the Login_Authenticate event to authorize the user. Then I have the following code in the Login_LoggedIn event to set the auth ticket.
I created a user control for my web application that checks for Session Timeout. If the criteria are met for Timeout, I use Response.Redirect to send the user back to the login page. I include this user control in my Master page, and run the SessionTimeoutcode in the user control's Page_Init event. That all works great. However, once the user logs in again after time-out (and I have verified that the OnLoggedIn event does fire) the user is redirected to the DestinationPageUrl. That page runs the Session Timeout check when it loads (as it should) and the Session Timeout code "says" that the session is still timed-out.
I just created a small site with form authentication with route handling. Without forms authentication, the pages route just fine. With forms, it returns back to the login page as it is not one of my allowed locations specified in my web.config file.
I know I probably need to write a custom route handler. Does anyone have an example I can follow for this?
We currently have a set of ASP.NET application and we are migrating them to use Windows Authentication (used to be form Authentication). We will eventually let the user to connect to our site entering Windows Authentication credentials. When we tested within our system across different domains, we noticed that the authentication session seemed to be cached even with the server session had timed out. In other words, once the user logged in and keeped an Internet Explorer window up (didn't even have to be in ourapplication page), the user could always navigate back to our application without being prompted for security login again. We had our site included in the Trusted Site list of the IE browser.Is that the expected behavior for ASP.NET Windows Authentication? If that is the case, is there a way to end the Authentication cache when the users leave their IE windows idle.
I am using asp.net mvc and jquery to make ajax requests and when the session times out after an ajax request the full sigin page gets loaded into my ajax div.
How can I display a modal popup instead of making a redirect when a session times out?
We have the timeout value set to 120 in our <form> tag within the web.config. We do not have a session timeout set.. and we have various connection strings.
We are having a problem where a session variable will disappear (become NULL) .. but, the form evidently remains 'open'.. or no re-login is required..... so, my question(s):
1. what is the relationship between form timeout and session timeout
I tried to take advantage of jQuery AJAX call to enhance user experience but I am facing a tricky problem.
When the user does nothing for a period of time, e.g. 30 minutes to reach authentication timeout, making AJAX call becomes the problem. The server side will return login page and display in my target div section. The simplest solution I can think of is to inject a dummy tag in login page, and when detecting such dummy tag then use javascript to redirect to login page. But this means that I have to do that every time I make AJAX call.
I have a web page that refreshes every one minute and the solution times out every 20 minutes, would the one minute refresh be considered as user activity and therefore doesn't time out every 20 minutes? And if not, how do I convince the page that the one minute refresh is like a user activity and it shouldn't time out?Here is the javascript to refresh every one minute:
My 3.5 app uses Forms Authentication. I create an authentication cookie (ticket) with an expiration date of one day. The cookie's IsPersistent is set to True. I do not use any session variables. Session timeout is the default 20 minutes.
Here's the problem:
When the session times out in 20 minutes, the user is redirected to the logon page even though the authentication cookie has not expired.
Why does this happen? I thought the session and the cookie were independent of each other.
We currently have a public-facing .Net 4 application running with the default session timeout value of 20 mins. Are there any significant security risks with lengthening that to 60 mins or longer?
I am building a web app that is limited to one database, therefore I cannot use the ASP.NET config tool. As a quick means of getting this app online, I tried to use a simple session variable. The login page verifies the user's credentials, and if they pass, it sets the session variable to a certain value. All other pages check in the page_load event whether or not the session variable is equal to that value. The problem is that once being logged in for a short while and sending and recieving some data, the session variable resets, and I'm returned to the login page to repeat the process. Here's the basic code from my webforms:
[code]....
Is there some setting I need to change in the web.config file to adjust the cookie timeout or is that only for the config tool authentication methods?
I have an ASP.NET application that is using Signle Sign On using Active Directory Federation Services
When the user first logs into the application, Once they are "authenticated", their credentials remain active while their web browser is open.
Now, I want the "authentication" to "timeout" in 60 minutes. This way if they browse to another page after 60 minutes, they are prompted to "re-enter" their credentials again.
I know that in FormsAuthentication, you can "de-authenticate" someone by calling "FormsAuthentication.SignOut();" in the Session_End Event in Global.asax.
Using VS 2010 RC, VB, and Forms authentication to allow access to the site, depending on the login rights of a user, I want to turn on and off access to certain pages. I can turn on and off buttons to access the pages, but a user can type the page into the url, and it will still go to them.
