Security :: Forms Authentication Is Not Updating The Cookie?
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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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
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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 29, 2010
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Nov 6, 2010
I have a bunch of applications that currently share the authentication cookie in v3.5.
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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">
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Jul 6, 2010
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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");
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<machineKey>
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Feb 5, 2010
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Feb 18, 2011
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Oct 31, 2010
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I only did a cursory search of the asp.net forums, but will dilligently look for an existing solution.
----- BACKGROUND AND RESEARCH -----
I have been using all three features of client application services (authentication, profiles, and roles) in my windows app (DotNet 3.5 framework) for almost two years now. Up until now, I have not had any problems. This week I hit a brick wall and am pretty stumped with two seperate but related issues.
Issues:
In development, we decided to upgrade our websites/services to DotNet 4.0. All applications upgraded successfully. However we are unable to log into our application using Client Application services. No matter what user we use, Membership.ValidateUser returns false. Since we know the username and passwords, we thought this was strange. When debugging the application, we found that Membership.ValidateUser was throwing an InvalidOperationException (see below for complete exception) stating that the ASPXAUTH property was too long, longer that the schema created in the SQL/CE database. (See below for things tried).
In production .. A user all of the sudden could no longer gain access to the application. Upon inspection, his ASPXAUTH cookie was 264 characters long (9 characters longer than the schemas nvarchar(256)). Even though the user was being authenticated on the "server side", and the JSON query returned "{"d":true}", Membership.ValidateUser returned false. Again, as in the case above, the actual error was ...
Message=@PropValue : String truncation: max=256, len=264 ...
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[code]....
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Aug 26, 2010
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Aug 19, 2010
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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.
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[Code]....
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May 21, 2010
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Feb 9, 2010
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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
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Here is the code:
[Code].....
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Jan 28, 2013
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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.
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Sep 21, 2010
when a user logins into my site i create the following authenticate ticket:
// Create the authentication ticket
var authTicket = new FormsAuthenticationTicket(1, // Version
userName, // Username [code]...
The problem i have is that if an administrator changes a user's role or time zone then the next time they return to the site their ticket is not updated (if they selected remember me when logging in).Here's my authentication settings incase it helps:
<authentication mode="Forms">
<forms timeout="10080" slidingExpiration="true" />
</authentication>
<membership userIsOnlineTimeWindow="15" />
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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.
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Aug 9, 2010
cookies are generated from the client scripting.e.g. document.cookie = city=NYC;
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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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