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Re: cdrtools-2.01a37 ready

On Sat, Aug 21, 2004 at 11:04:41AM -0400, Albert Cahalan wrote:
> > On OpenBSD, members of the operator group are allowed to
> > reboot the system, change tapes ... normal things that
> > someone trusted to operate the system would be allowed to do.
> > Letting them write to CD/DVD is very low on the scale of bad
> > things they could already do, like boot into single user
> > mode and mess with all kinds of stuff, and so does not
> > further compromise the security of the system.  There is
> > virtually no way anyone could escalate their privileges by
> > simply allowing them to write to a CD device.
> Sure there is.
> Write new firmware to the device that lets you lock up
> the bus or tunnel SCSI commands to another device.
> You could password-protect all other devices on the bus,
> format disks with non-standard sector sizes, eject
> boot media, and so on.
> People have been hacking firmware, mostly to remove
> annoying spped restrictions and DVD restrictions, so
> don't for a moment think that obscurity will save you.

Obscurity?  What are you talking about?

If I thought someone was going to try to overwrite the firmware
on an device, they would not be part of the operator group.

You apparently did not understand what I was talking about.


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