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Re: Helper Tool on FireWire


On 25 Jun 2006, at 13:55, "Finlay Dobbie" <email@hidden> wrote:



On 25/06/06, Gerriet M. Denkmann <email@hidden> wrote:
Why does your tool need to run from the boot partition? 

It does not. But it needs to run setuid root, and this seems not to
work on FireWire-non-boot-partitions.


Of course. Otherwise, I could take a FireWire drive, hook it up to my
Mac, put a tool on it, make it setuid root, then connect my drive to
your Mac and boom! Instance root access.

Well, if you near enough to my machine to insert a FireWire cable, then you are also able to insert a boot-CD.

But I agree: mounting external partitions with MNT_NOSUID = "don't honor setuid bits" is probably a good idea.

Gerriet.



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