Manipulation of checksum by possible client - Apex security issue

Hello guys! I was just wondering if the checksum calculated in session state protection can be calculated by a client.
Suppose an attacker modifies the criteria in the url and provides a checksum matching, that he wanted to succeed in hacking of the app.

I wasn't able to find anything about the successful handling of checksum but don't know whether or not it is absolutely impossible!

Thanks for your replies!

SEB

You will find a more detailed explanation here http://download.oracle.com/docs/cd/E17556_01/doc/user.40/e15517/sec.htm#CHDDAJHF

At a general level, that's what you need to do
1. sharing of Session State Protection components - enable
2. at the level of the Page change the security and Protection of Access Page the value no URL access
3 change the branches to the Page (not the default Page and the URL)
4 conduit to more than coding to remove the parameter passing (good for bad security for coders)
If you want to see what I mean in Action, to do this and continue to look at the URL
a. to open an Application in Application Builder
b. click on create new page
c. Select Assistant
d. click Next and suddenly see wwv_flow.accept ! No page, no session, not nothing. You can do this in your application Apex too because too lettering Builder was built in the Apex.
Kind regards

Tags: Database

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