Forms Authentication Cookie Not Expiring On Server Shutdown / Failure?
Jan 5, 2011
Here is a use case of my login using a CustomMembershipProvider
User Logs in MembershipProvider validates user account User property of Membership is set to user details coming from the database An authentication ticket is created Forms authentication cookie is added. User is logged in
Here is a use case of my problem Stop whe web development server Start the web development server, and user is still logged in (due to cookie?) User property Membership is set to null due to server restart/failure Application throws exception due to null user value
The only solution I could think off is to clear all cookies on Application_Start() but I don't know how is that even possible as Request is out of context during application start.
Here is the code:
[Code].....
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Apr 15, 2010
'm using the AutoCompleteExtender from the AJAX control toolkit on my aspx page - I have it wired up to a WCF service that is returning a string array and everything works happily.
If I change my service definition to include a demand for the caller to be authenticated, like so:
<OperationContract(), PrincipalPermission(SecurityAction.Demand, Authenticated:=True)> _Public Function GetLookupValues(ByVal prefixText As String, ByVal count As Integer, ByVal contextKey As String) As String()
Then the autocomplete extender stops working, and I get an authentication error in the service. The service is set up to use ASPNetCompatibility mode, and I was hoping that the extender would pass the authentication credentials for my logged in user - does anyone know how to make this work?
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Apr 9, 2010
Here's my scenario.
I've got a site called domain.com and also another product on product.domain.com. The product.domain.com requires authentication to access it. For consistancy in the user experience I have set the login url in the web.config on product.domain.com to be http://domain.com/Login.aspx. This redirection is working ok - and a sample url would be:
http://domain.com/Login.aspx?RedirectURL=/default.aspx
The problem is that the RedirectURL does not take into account that the request originally came from product.domain.com so when the authentication is successful the user is not redirected back to product.domain.com
I have come up with a solution for this but would like feedback if possible.
I changed the loginURL in the web.config to http://domain.com/Login.aspx?domain=product.domain.com so the sample url is now:
http://domain.com/Login.aspx?domain=product.domain.com&ReturnURL=Default.aspx
I then override the LoggedIn event in the membership control and check to see if the domain value pair is specified and if it is I redirect to the domain + ReturnURL.
As I said previously i'd appreciate any comments or other ways to achieve the same result.
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Aug 19, 2010
We have a non-SSL ASP.NET web app that allows a user to login (ASP forms authentication, inproc).
Once authenticated, we redirect their browser to an external, SSL secured page on another web site / domain altogether that we do not control.
The client is redirected back to a pre-configured url on our original http web app when done.
However, the customer is then asked to "re-login" again on our side which is undesired...
It seems the forms authentication cookie is destroyed when transitioning between HTTP and HTTPS and back again.
How can I keep the forms authentication cookie alive so that the customer does not have to re-authenticate on the round trip?
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Sep 2, 2010
I have 2 websites running on localhost in different ports. As browsers do not differentiate port numbers when sending cookies, my forms authentication ticket from one site is being sent to the other
How do I solve this? I thought that a good solution would be to change the forms authentication ticket or one of the websites but I don't know how to do this.
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Dec 13, 2010
We have had a bug recently where users are logging into an application with multiple browser tabs. They are editing a content page which means that they can be working on a page for sometime (ie with no postbacks) They finally click save and because the session has timed out it takes then to login page. I initally resolved they by adding a reminder that the session is about to expire which initally resolved the issue. It has been noted that even when they are within session time out they still got redirected to login page (and loosing the data on the form). We had real problems replicating the issue but have finally managed to do so now and I have learnt some curous features of .net Forms Authentication.
I have set up a test project which has the membership controls on etc. I have set the Timeout on the <forms> tag
<forms loginUrl="~/Account/Login.aspx" timeout="2" />Case 1I then open two browsers windows (side by side), both on the login page (and logged out)On the left window I login (and start a timer)after 40 seconds on the right window I navigate to a page (which takes me to the page as I have logged in on left window )I then wait until the full 2 minutes has elapsed (but before 2 Minutes and 40 seconds) and then try and navigate to a page on the left window.It redirects me to the login pageI would expect it to allow me to navigate to as I have kept my session open on the right window.Case 2I then open two browsers windows (side by side), both on the login page (and logged out)On the left window I login (and start a timer)after 90 seconds on the right window I navigate to a page (which takes me to the page as I have logged in on left window )I then wait until the full 2 minutes has elapsed (but before 2 Minutes and 40 seconds) and then try and navigate to a page on the left window.It Navigates to the page keeping me logged in.After a bit of reading around the subject I have found out that the slidingexpiration property only renews the cookie if it is in the last 50% of the timeout value:
Sliding expiration resets the expiration time for a valid authentication cookie if a request is made and more than half of the timeout interval has elapsed[URL]
My Question is: How can I override this bit of functionality?
Is there a property to set somewhere to "Always renew cookie"?
Is there another workaround. Unfortunately I can't increase the timeout because of a complience issue (it must be set to 15 minutes)
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Oct 26, 2010
Since last week I've had a really odd issue with PageMethods, the forms authentication cookie, and the back button which i've never seen before.
Essentially, I have a 'home page' which on document.ready (using jQuery), loads some data through PageMethods, and then renders a list - from which you can click through to a details page about the item. In general use, it works fine. However, using the back button after clicking through (ie: going back to the home page), it throws a PageMethods error. The browser's 'authentication required' prompt appears, and if you click cancel, the server returns a 401. The error returned by PageMethods on the client side is 'authentication failed'.
After inspecting the request in Fiddler, the forms authentication cookie isn't sent with the request, which would explain why it is happening. My fiddler entry for the request looks like this:
[Code]....
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May 21, 2010
What is the content of ASP.NET FormsAuthentication cookie value? How can I see the real value of the hashed string (in case that I have the decrypted key)?
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Feb 9, 2010
I am using forms authentication and have an issue with a particular browser using the remember me feature. For various reasons I want to support the opera browser that works with the nintendo dsi. I can use forms authentication with that browser just fine but when I use the remember me (cookie) feature I can get through the login but then calls to User.Identity.IsAuthenticated return false. If I do not check remember me it works fine. Initially I thought the browser didn't support cookies but it does. At least I can go to m.gmail.com and check their version of remember me and it works. I can exit the browser and come back in and m.gmail.com remembers me. Also I don't have problems with remember me on any other browser I have tried.
Is anyone aware of some specific browser issue that doesn't work with asp.net forms authentication? I am using asp.net mvc but I doubt that matters.
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Jun 16, 2010
For some reason my users are logged out of the system every 10-15 minutes or so...regardless of the configuration below....am I missing something?
[code]....
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Jan 21, 2010
I am having a problem with security in a web application I am building using Visual Web Developer 2008. I am using Forms Authentication:
<authentication mode="Forms">
<forms name=".MYAUTH" timeout="20" enableCrossAppRedirects="true" />
</authentication>
And a SQL Server database with ASP.NET Membership and Roles. I am using the LoginView control with the AnonymousTemplate and LoggedInTemplate to manage the user's interaction with logging in and out. The problem I am having is that I am authenticating the user against the database:
If Membership.ValidateUser(_userName, _txtLoginPass.Text)
Then returns True and:
FormsAuthentication.SetAuthCookie(_userName, False)
sets the cookie correctly:
FormsAuthentication.Decrypt(FormsAuthentication.GetAuthCookie(_userName, False).Values(0))
{System.Web.Security.FormsAuthenticationTicket} CookiePath: "/"
Expiration: #1/21/2010 1:42:27 PM#
Expired: False
IsPersistent: False
IssueDate: #1/21/2010 1:22:27 PM#
Name: "jaymo "
UserData: ""
Version: 2
but when I check
HttpContext.Current.User.Identity.IsAuthenticated it always returns False.
If done this before and it worked fine. I cannot find any mistake I might have made or where something might have changed between ASP.NET 2.0 and 3.5.
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Jan 28, 2013
I use Form Based Authentication in my siteIn my login page I have:
FormsAuthentication.SetAuthCookie(user.userName, true)
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Jun 7, 2010
I am having a hard time implementing "Remember Me" functionality in an MVC application with a custom principal. I have boiled it down to ASP.NET not retrieving the authentication cookie for me. I have included a snaphot below from Google Chrome.
Shows the results of Request.Cookies that is set within the controller action and placed in ViewData for the view to read. Notice that it is missing the .ASPXAUTH cookie Shows the results from the Chrome developer tools. You can see that .ASPXAUTH is included here.
Does anyone know what the issue may be here? Why does ASP.NET not read this value from the cookie collection?
My application uses a custom IPrincipal. BusinessPrincipalBase is a CSLA object that ust implements IPrincipal. Here is the code for that:
[Code]....
I do not think that any of this is related because the bottom line is that the Request.Cookies does not return the authentication cookie. Is it related to the size of the cookie? I heard there are issues to the size of the cookie.
UPDATE: It seems that the issue revolves around subdomains. This site was being hosted with a subdomain and the cookie domain was left blank. Does anyone have any pointers on how I can get the auth cookie to work with all domains (e.g. http://mydomain.com, http://www.mydomain.com, and http://sub.mydomain.com)?
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Jan 29, 2010
Do we know the algorithm that asp.net uses to create the authentication cookie (when using forms authentication?)
Can we basically create our own copy implementation? if so, how?
What does it use to generate the encrypted cookie value, I know it uses whatever you pass into the SetAuthCookie call (which is usually the userID/username).
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Jun 11, 2010
I have an ASP.NET website for which i've set the authetication timeout to 60 days so that my users don't have to log in each time they come back if they checked the "remember me" option. Basic ASP.NET login mechanism... It's working fine on my developpement server as well as on the visual studio built-in web server. I can close the browser, wait around 30-40 minutes and browse back to the site and be automatically logged in.
However, I've not moved the site to a hosting provider and it seems that whatever I do to my Web.config file, the cookie expires after around 30 minutes (hard to tell the exact amount of time). I have asked the provider's help support and they basically told me: "Web.config file is to configure your website. Please do not change it if you don't know what you are doing"Frustrating answer indeed... be sure, I checked everywhere on the net for exceptions, fine prints, in the basic asp.net authentication but found none.I have access to IIS remote management for my site (IIS 7) but don't really know where to look. Can there be something in the IIS setting that is overriding my web.config authentication setting?
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Nov 6, 2010
I have a bunch of applications that currently share the authentication cookie in v3.5.
We're in the process of upgrading to 4.0 and also upgrading the applications as a whole. I have 1 done, and would love to deploy it. However, as soon as I do, I lose my sharing of authentication cookie in that application.
In each web.config, my machine key is declared. I removed the actual keys to protect the innocent. :)
<machineKey validationKey="..." decryptionKey="..." validation="SHA1"/>
<authentication mode="Forms">
<!-- DEV Server -->
<forms enableCrossAppRedirects="true" loginUrl="Logon.aspx" name=".COOKIENAMEHERE" protection="All" path="/" slidingExpiration="true" timeout="1440"/>
</authentication>
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Dec 8, 2010
I'm using ASP authentication and the integrated webservice.
The user logins in with Forms authentication on a login page.
To log out, I call the authentication webservice from Silverlight and call logout.
Everything worked OK but now sometimes IE gets crazy and doesn't log out the user anymore.
I used Fiddler and it turns out that the authentication service returns a SetCookie to clear the ASPXAUTH cookie but on the next call IE still has the cookie set.
So off course because the cookie is there the user is authenticated and logs right back in rather than being directed to the login page.
I checked and didn't see any other description of the issue.
I can't reproduce it and my colleagues that have a misbehaving IE have it working fine on one environment and not on the other (one has the issue for DEV and another has the issue for the PreProd server).
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Jul 6, 2010
My users need to stay logged in for 1 day, so I used a persistent authentication cookie with an expiration of 1 day but it still times out after 20 minutes (which is the default timeout for the session, not the cookie).
This is my code:
<authentication mode="Forms">
<forms loginUrl="Login.aspx" protection="All" path="/" />
</authentication>
FormsAuthenticationTicket ticket =
new FormsAuthenticationTicket(1, "username", DateTime.Now, DateTime.Now.AddDays(1), true, "userdata");
string encTicket = FormsAuthentication.Encrypt(ticket);
HttpCookie cookie = new HttpCookie(FormsAuthentication.FormsCookieName, encTicket);
cookie.Expires = ticket.Expiration;
HttpContext.Current.Response.Cookies.Add(cookie);
I also have manually-generated validation and decryption keys:
<machineKey>
validationKey="......."
decryptionKey="......."
validation="SHA1"
</machineKey>
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Nov 2, 2010
I have 3 applications running at my end.
RootSite
RootSite/VirtualDirectory1
RootSite/VirtualDirectory2
I have a login page in three of these applications. When I login in either of these applications the .ASPXAUTH cookie is set but I am seeing that all of the three applications are updating the same .ASPXAUTH cookie instead of creating individual one. For example a user login on "RootSite", .ASPXAUTH cookie is created, now the user comes and login in the application "RootSite/VirtualDirectory1" and this time I am seeing the same .ASPXAUTH cookie is updating. I am confirming this because the created date of this cookie has been changed. So this means instead of creating a new cookie it is using the same cookie. How can I resolve this ? I don't want to interfere the logged-in logged-out status of one application with the other?
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Mar 5, 2011
I used this following code to set authenticate cookie :
System.Web.Security.FormsAuthentication.SetAuthCookie(Profile.Email, true);
my question is how I can increase life-time for this authentication cookie ?
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Feb 5, 2010
Once the user has authenticated, I would like to base all of the information displayed to the user based on their username. Isn't that saved in the cookie?
For instance, I would like to pull all of their client information using a GridView and have the parameter set to the appropriate authentication information.
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Feb 18, 2011
My requirements is when one other website call my service (httphandler) and in response i will provide one parameter which is
value of form authentication cookie
now that website call my website with that cookie value as query string , how to check from that cookie value that particular use is authenticated or not ?
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Mar 30, 2010
It looks like JavaScript does not have access to authentication cookies ('ASP.NET_SessionId', '.ASPXFORMSAUTH') in the http headers I can see cookies but document.cookie object does not have them.
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Jan 12, 2011
I am having a scenario, where i need to decode ASP.NET FormsAuthentication Cookie in other language to accomplish Single Sign-On.
I am having a ASP.NET website, that also has WCF Authentication service. But I have just come know that even Java and PHP Application are also going to use my Authentication Gateway to authenticate user and so enable Single Sing-On.
I am done with the same in .NET application but to perform same in non-.NET techs, I need to decode FormsAuthentication Cookie of browser. FormsAuthentication Cookie are Encrypted so there must exist a algorithm that can decode it or a kind of dll that I can load in Java and read it.
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Dec 6, 2010
is it possible to preserve authentication for ASP.NET Forms authentication cookie,btween Http and Https (different domains) and back?I mean haveing single signon for two domains say http://www.mydomain.com and https://members.mydomain.comI've seen on quite asp.net sites that have a 'MyAccount' section they transfer the site to https and then when you have logged into your account successfully and gone back to the majority of the site you move back to http whilst still being logged in.
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