Anze Slosar wrote:
>
>     The potential value of the kiosk disc due to it's lack of a media flag
>     is obvious.  A mod chip potentially allows all media to shed it's media
>     flag so may be a tool through which Linux finds it's way to the 360.
>
>
>
> Hi,
>
> sorry for being slow, but could someone explain me what makes this kiosk
> disc working on any xbox 360? Is it digitally signed or how it is
> authorised? I've heard that there are unsigned application that actually
> get executed from the disc (is this true?) and if this is the case
> wouldn't be 'trivial' to put our code in there?  Are the standard games
> just a different filesystem or do they actually use a different
> technology (i.e. would you need an updated driver in the PC an updated
> firmware and a completelly different drive to read them?)
>
> (feel free to tell me to f* off, but please point me to a wiki or
> discussion...)
>
> regards,
> a.

The executables are still signed, however the media files (music, video,
etc) are not.  There is the potential for a buffer overflow given the
ability to change those files (ala 'softmod' hacks for the Xbox1).
Another interesting hack has been the execution of custom instructions
in the GPU's shader.  This seems to have little value given that the
shader cannot access system memory.

Martin replied before I sent this (damn RL job :) but in regards to his
comment about use of the kiosk disc not being legal; it would depend on
who is using it.  More than one kiosk Xbox has been sold (accounts on
various blogs) some of which have included the disc.  While likely a
contractual violation between Microsoft and the retailer, it is not
illegal to sell it.

There is at least one individual who obtained a copy of Microsoft's
'testing' disc when his 360 was returned from repair.  Has anyone seen
any information about that disc?






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