I personally think that AJAX has the potential to create very insecure applications because it pushes the data validation and authorization layers back to the client (i.e. the browser)

"AJAX brings 'Back the Rich Client' and all its security problems"

Kentaro, on your AJAX application you must follow the rule-of-thumb of not trusting any data supplied by your own Client-Side-AJAX functions, and authorize every request.

In a nutshell: any data validation and authorization decisions/actions made at the Client-Side-AJAX functions are only there for usability, and have NO security value.

Hope this helps

Dinis Cruz
Owasp .Net Project
www.owasp.net


From: "Kentaro Arai" <[EMAIL PROTECTED]>
Sent: Monday, March 06, 2006 9:49 AM
To: "Secure Coding Mailing List" <SC-L@securecoding.org>
Subject: [SC-L] Is there any Security problem in Ajax technology?




Hi, All

I'm designing a web application with Ajax technology and .NET
Framework1.1.
Do I need to consider any security problem, using the Ajax technology?

Kentaro Arai

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