On Nov 2, 2009, at 2:38 PM, "Paul B. Henson" <hen...@acm.org> wrote:

On Sat, 31 Oct 2009, Al Hopper wrote:

Kudos to you - nice technical analysis and presentation, Keep lobbying your point of view - I think interoperability should win out if it comes
down to an arbitrary decision.

Thanks; but so far that doesn't look promising. Right now I've got a cron job running every hour on the backend servers crawling around and fixing
permissions on new directories :(.

You would have thought something like this would have been noticed in one
of the NFS interoperability bake offs.

Paul,

Maybe your approaching this the wrong way.

Maybe this isn't an interoperability fix, but a security fix as it allows non-Sun clients to bypass security restrictions placed on a sgid protected directory tree because it doesn't properly test the existence of that bit upon file creation.

If an appropriate scenario can be made, and I'm sure it can, one might even post a CERT advisory to make sure operators are made aware of this potential security problem.

-Ross


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