Re: [Xen-devel] severe security issue on dom0/xend/xm/non-root users

[Anthony Liguori <aliguori@xxxxxxxxxx>]

David Hopwood wrote:

> You can 1 and 3 just as easily with the Unix domain socket method.
> Although you could also do 2, there's no need (2 is not a flexibility
> advantage, it's just something you have to do to make the port<1024
> method secure).
More importantly, using SCM_CREDENTIALS allows you to pass the actual 
user credentials overs the domain socket.
This is by far the best mechanism as it allows access control to be 
implemented entirely within the daemon without doing any nasty set[ug]id 
trickery.  Its entire purpose in life is doing exactly what we're trying 
to do :-)
Regards,
Anthony Liguori


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