By Billy Hoffman
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The Hands-On, functional advisor to combating Ajax-Related protection Vulnerabilities an increasing number of websites are being rewritten as Ajax functions; even conventional machine software program is swiftly relocating to the internet through Ajax. yet, all too usually, this transition is being made with reckless fail to remember for protection.
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Extra info for Ajax Security
Another great advantage of thin-client programs is found in the name itself: they’re thin. They don’t take up much space on the user’s machine. They don’t use much memory when they run. Most Web applications have a zero-footprint install, meaning they don’t require any disk space on the client machine at all. Query database Filter query results Calculate order cost Determine ship date Write bill of materials Server responsibilities Display UI Client responsibilities Figure 1-7 14 A sample thin-client architecture Handle user input THE AJAX ARCHITECTURE SHIFT Users were thrilled with the advantages that thin-client Web applications provided, but eventually the novelty of the Web started to wear off.
Aspx Web service responds with an error message to improperly formatted requests. Interesting. The Web site responded with an error message telling Eve that her request was missing some parameters. Eve fills in one bogus parameter and resubmits the request. Figure 2-10 shows this transaction. Eve creeps to the edge of her seat. Her bogus shot in the dark actually accomplished something. The Web service didn’t seem to add a user, but it told her she is now only missing three items instead of four.
She never needs to wait for a complete refresh and redraw of the page as she would for a standard Web site. In the future, this type of application will define what we think of as an Ajax application much more than the Web site that just uses Ajax to makes its pages prettier. This is what we call the Ajax architecture shift. In order to understand the security implications of this shift, we need to understand the differences between Ajax applications and other client/server applications such as traditional Web sites.
Ajax Security by Billy Hoffman