WebApp Sec mailing list archives
Cookie not expiring...
From: spawn security <spawn.security () gmail com>
Date: Tue, 16 Aug 2005 13:08:00 -0400
I'm testing an application and after clicking on the logout button the session management cookie does not expire. More specifically, the application is using the FormsAuthentication class signout method to "logout" an authenticated user. Private Sub cmdSignOut_ServerClick(ByVal sender As System.Object, ByVal e As System.EventArgs) _ Handles cmdSignOut.ServerClick FormsAuthentication.SignOut() Session.Abandon() Response.Redirect("login.aspx", True) End Sub According to Microsoft documentation, this FormsAuthentication.SignOut method works by returning a Set-Cookie header to the browser that sets the cookie's value to a null string and sets the cookie's expiration date to a date in the past. This is only expiring the cookie on the client/browser side. Which will allow a "malicious" user, who had access to the cookie, to reuse it after user logs out. Does anyone know how to force the cookie to expire on the server side ? Thanks.
Current thread:
- Cookie not expiring... spawn security (Aug 16)
- Re: Cookie not expiring... bryan allott (Aug 17)
- RE: Cookie not expiring... Dan Simon (Aug 17)
- Re: Cookie not expiring... Rogan Dawes (Aug 17)
- Re: Cookie not expiring... Thomas Chiverton (Aug 17)
- <Possible follow-ups>
- RE: Cookie not expiring... Steven Rebello (Aug 17)
- RE: Cookie not expiring... David Knapman (Aug 17)
- Re: Cookie not expiring... dharmeshmm (Aug 17)
- RE: Cookie not expiring... Dan Simon (Aug 17)
- Windows 2003 Server Hardening Joe Osborn (Aug 18)
- Re: Windows 2003 Server Hardening jcarr083 (Aug 19)
- RE: Cookie not expiring... Dan Simon (Aug 17)
- Re: Cookie not expiring... bryan allott (Aug 17)