From:             [EMAIL PROTECTED]
Operating system: Linux
PHP version:      4.0.5
PHP Bug Type:     *Session related
Bug description:  Possible security hole via external modification of session vars

This is kind of similar to the old file upload problem, where you could set variables 
in a POST.

In some cases (depends on the way the code is written), if a site stores login status 
(eg. user name, etc) in session variables after an authorisation check, it is possible 
to pass values as the same-named session vars, and therefore actually bypass the 
authorisation step getting access to restricted areas.



-- 
Edit Bug report at: http://bugs.php.net/?id=10902&edit=1



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