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Re: /proc filesystem allows bypassing directory permissions on Linux
| From: |
Pavel Machek <pavel ucw cz> |
| To: |
Marco Verschuur <marco osp nl> |
| Cc: |
Jim Paris <jim jtan com>, Dan Yefimov <dan lightwave net ru>, bugtraq securityfocus com |
| Subject: |
Re: /proc filesystem allows bypassing directory permissions on Linux |
| Date: |
Fri - Oct 30, 2009 11:26 AM |
Hi!
(no html, please).
> Proc does not need to be fixed, because /proc is referring to a file
> inode.
Well, that does not mean /proc does not need fixing.
> You are expecting transactional behavior in /proc, where /proc only
> registers object information.
...
> And I think you would agree about your mis-interpretation earlier
> if not so
> many people had the same mis-interpretation of the virtual /proc
> mechanism
I think you understand the issue by now. But you think it should be
documented better, not fixed. I believe that fixing it is easier and
better option -- because surprises in security area are bad -- but of
course, if this is documented properly, it also stops being so big
problem.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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