Element restricts from browser.

One of our end users has been able to display pages that they were not allowed to. Later, we discovered a logic error in one of our authorisation schemes and have since fixed the problem.

The problem is an element of application being set to NULL. Although we had this element the value 'Restricted - cannot be resolved the browser"you are still able to cancel through the URL to APP in the position to clear the cache. (e.g. & SESSION_ID.:NO:APP ::)

He however threw an error if I tried to cancel via the settings name/value (e.g. & SESSION_ID.:NO:ITEM_NAME :)

Is this expected behavior? -I expect that any protected element would never touch even with clear the cache.

Luke

using version 5.0.2.00.07

I believe that the flag that you set only helps out JavaScript code only with setting up client side of change the value side of customer to something.

In fact, I would say that "this is an expected behavior when you submit hand-written URL.

As you can see, this can be easily abused by pirates.

The only way I know how to prevent a person to send a URL that's going to ruin the level of read-only session data is to never trust what is sent.

This is true for all web applications. (not only the APEX)

For APEX, I save the Number values in a Collection and set the item based on this value.

In this way, I know (for sure) that the value (in the Collection) has not change, unless I wanted to change.

But I'd only go that, until now, if I was paranoid.

MK

Tags: Database

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