From: Anthony Liguori <aliguori@us.ibm.com>
To: david.nospam.hopwood@blueyonder.co.uk
Cc: xen-devel@lists.sourceforge.net
Subject: Re: severe security issue on dom0/xend/xm/non-root users
Date: Sat, 19 Mar 2005 00:29:30 -0600 [thread overview]
Message-ID: <423BC6CA.7010004@us.ibm.com> (raw)
In-Reply-To: <423B8F76.9060602@blueyonder.co.uk>
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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next prev parent reply other threads:[~2005-03-19 6:29 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-04 17:23 severe security issue on dom0/xend/xm/non-root users Adam Heath
2005-03-04 19:01 ` Anthony Liguori
2005-03-04 19:19 ` Rich Persaud
2005-03-04 19:47 ` Anthony Liguori
2005-03-04 19:39 ` Adam Heath
2005-03-04 19:56 ` Bastian Blank
2005-03-05 21:53 ` Rik van Riel
2005-03-05 22:28 ` Bastian Blank
2005-03-06 15:14 ` Tommi Virtanen
2005-03-06 21:14 ` Rik van Riel
2005-03-13 14:55 ` Kurt Garloff
2005-03-13 16:00 ` Rik van Riel
2005-03-13 17:09 ` Kurt Garloff
2005-03-13 21:39 ` David Hopwood
2005-03-13 21:51 ` Kurt Garloff
2005-03-14 14:58 ` Philip R Auld
2005-03-14 15:16 ` Kurt Garloff
2005-03-14 15:54 ` Philip R Auld
2005-03-14 16:13 ` Kurt Garloff
2005-03-14 16:44 ` Anthony Liguori
2005-03-17 6:46 ` Tommi Virtanen
2005-03-17 15:02 ` Kurt Garloff
2005-03-18 9:19 ` Tommi Virtanen
2005-03-18 9:31 ` Kurt Garloff
2005-03-18 11:59 ` Tommi Virtanen
2005-03-19 11:21 ` Nuutti Kotivuori
2005-03-19 2:33 ` David Hopwood
2005-03-19 6:29 ` Anthony Liguori [this message]
2005-03-05 3:14 ` David Hopwood
2005-03-05 7:54 ` Anthony Liguori
2005-03-04 19:35 ` Adam Heath
2005-03-04 19:54 ` Anthony Liguori
2005-03-04 19:47 ` Rich Persaud
2005-03-04 23:19 ` Nicholas Lee
-- strict thread matches above, loose matches on Subject: below --
2005-03-13 17:17 Ian Pratt
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