On Sat, 2007-09-15 at 01:43 +1000, Greg Banks wrote:
> On Fri, Sep 14, 2007 at 10:58:38AM -0400, Jeff Layton wrote:
> > If Irix isn't clearing these bits
> > on a write then it might be good to see if they can fix that...
>
> I think first you'd have to mount a serious argument that it's broken,
> more serious than "it works differently from Linux".
How about: "If IRIX isn't clearing these bits then they're leaving their
customers wide open to all sorts of security issues."
Unless you make the chmod/chgrp atomic with the write, then there will
always be a way for a client to inject data while the setuid/setgid bits
are set: basically, it allows said client to rewrite a setuid/setgid
executable.
We're not fixing this in the client because it isn't fixable on the
client.
Trond
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