For more information on this security recommendation, as well as other security concerns, refer to the Security Question List for ASP. parameter, as this parameter indicates that the user arrived at the login page after attempting to view a page he was not authorized to view.
Figure 4: Only Users in the Administrators Role Can View the Protected Pages (Click to view full-size image) Log off and then log in as a user that is in the Administrators role.
Following that, we will look at using declarative and programmatic means for altering the data displayed and the functionality offered by an ASP. As we discussed in the class to determine the user's roles. Figure 2: The User's Role Information Can Be Stored in a Cookie to Improve Performance (Click to view full-size image) By default, the role cache cookie mechanism is disabled.
It can be enabled through the Note The configuration settings listed in Table 1 specify the properties of the resulting role cache cookie.
This tutorial starts with a look at how the Roles framework associates a user's roles with his security context.
It then examines how to apply role-based URL authorization rules. NET to allow only authenticated users to visit a page.
This may entail showing or hiding data based on the user's role, or offering additional functionality to users that belong to a particular role.
Such fine grain role-based authorization rules can be implemented either declaratively or programmatically (or through some combination of the two).
If the user's browser does not support cookies, or if their cookies are deleted or lost, somehow, it's no big deal – the Note Microsoft's Patterns & Practices group discourages using persistent role cache cookies.
So this cap is meant to reduce the likelihood of exceeding this size limitation.
If you have extremely long role names, you may want to consider specifying a smaller , respectively.
Since possession of the role cache cookie is sufficient to prove role membership, if a hacker can somehow gain access to a valid user's cookie he can impersonate that user.
The likelihood of this happening increases if the cookie is persisted on the user's browser.