Get Ajax Security PDF

By Billy Hoffman

ISBN-10: 0321491939

ISBN-13: 9780321491930

The Hands-On, functional consultant to fighting Ajax-Related safeguard Vulnerabilities   a growing number of websites are being rewritten as Ajax functions; even conventional computing device software program is quickly relocating to the internet through Ajax. yet, all too frequently, this transition is being made with reckless omit for safety. If Ajax purposes aren’t designed and coded effectively, they are often at risk of way more harmful safeguard vulnerabilities than traditional internet or computing device software program. Ajax builders desperately desire assistance on securing their purposes: wisdom that’s been almost very unlikely to discover, beforehand.             Ajax protection systematically debunks today’s most threatening myths approximately Ajax defense, illustrating key issues with particular case experiences of exact exploited Ajax vulnerabilities, starting from MySpace’s Samy computer virus to MacWorld’s convention code validator. much more vital, it supplies particular, up to date innovations for securing Ajax purposes in every one significant internet programming language and atmosphere, together with .NET, Java, personal home page, or even Ruby on Rails. You’ll easy methods to:   ·        Mitigate specific hazards linked to Ajax, together with overly granular internet prone, program regulate stream tampering, and manipulation of application common sense ·        Write new Ajax code extra safely—and establish and attach flaws in current code ·        hinder rising Ajax-specific assaults, together with JavaScript hijacking and protracted garage robbery ·        keep away from assaults in keeping with XSS and SQL Injection—including a deadly SQL Injection version that could extract a complete backend database with simply requests ·        Leverage protection equipped into Ajax frameworks like Prototype, Dojo, and ASP.NET AJAX Extensions—and realize what you continue to needs to enforce by yourself ·        Create safer “mashup” purposes   Ajax safeguard could be an imperative source for builders coding or keeping Ajax functions; architects and improvement managers making plans or designing new Ajax software program, and all software program protection execs, from QA experts to penetration testers.

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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.

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Ajax Security by Billy Hoffman

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