WebApp Sec: Re: Unable to impersonate another user although having its cookie

[pUm <hijacka () googlemail com>]

just a gues,
but try to fake the user agent. something in the http header must be
part of the cookie auth. so try them all and then reduce. My guess is
that it is the user-agent

2009/7/1 Juan Kinunt <kinunt () gmail com>:
> Hi,
>
> I'm auditing a web application programmed in CakePHP and I'm having a problem.
> I'm almost sure the authentication mechanism is carried by a cookie
> but I'm unable to impersonate another user using its cookie.
> The probe I do is opening two sessions with two different users (one
> in internet explorer and one in firefox). Then I copy the cookie
> belonging to one user and substitute it in a request done by the other
> user (using WebScarab). The app throws and error and disconnects the
> validated and legal user.
> I think that some info is stored in server side about the client who
> owns each cookie.
>
> Is this possible? Is it the normal operation in sessions in CakePHP?
>
> Any info or pointer would be very useful.
>
> Thanks.