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Re: [AppArmor 39/45] AppArmor: Profile loading and manipulation, pathname matching

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To: Chris Mason <chris.mason@...>
Cc: James Morris <jmorris@...>, Stephen Smalley <sds@...>, Lars Marowsky-Bree <lmb@...>, Crispin Cowan <crispin@...>, Greg KH <greg@...>, Andreas Gruenbacher <agruen@...>, <jjohansen@...>, <linux-kernel@...>, <linux-security-module@...>, <linux-fsdevel@...>
Date: Monday, June 25, 2007 - 11:14 am

Hi!


Actually, I surprised Lars a lot by telling him ln /etc/shadow /tmp/
allows any user to make AA ineffective on large part of systems -- in
internal discussion. (It is not actually a _bug_, but it is certainly
unexpected).

(Does it surprise you, too? I'm pretty sure it would surprise many users).

James summarized it nicely:

# The design of the AppArmor is based on _appearing simple_, but at the
# expense of completeness and thus correctness.

If even Lars can be surprised by AAs behaviour, I do not think we can
say "AA is different". I'm afraid that AA is trap for users. It
appears simple, and mostly does what it is told, but does not do _what
user wants_.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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Messages in current thread:
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Andreas Gruenbacher, (Mon Jun 4, 5:03 pm)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Andreas Gruenbacher, (Fri Jun 8, 6:03 pm)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Lars Marowsky-Bree, (Thu Jun 21, 12:08 pm)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Lars Marowsky-Bree, (Thu Jun 21, 3:35 pm)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Lars Marowsky-Bree, (Thu Jun 21, 3:24 pm)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Lars Marowsky-Bree, (Thu Jun 21, 4:21 pm)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Lars Marowsky-Bree, (Thu Jun 21, 3:54 pm)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Lars Marowsky-Bree, (Fri Jun 22, 8:42 am)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Pavel Machek, (Mon Jun 25, 11:14 am)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Lars Marowsky-Bree, (Tue Jun 26, 4:50 am)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Lars Marowsky-Bree, (Thu Jun 21, 5:17 pm)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Lars Marowsky-Bree, (Fri Jun 22, 7:37 am)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Lars Marowsky-Bree, (Fri Jun 22, 8:54 am)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Lars Marowsky-Bree, (Fri Jun 22, 6:49 am)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Lars Marowsky-Bree, (Thu Jun 21, 8:19 pm)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Andreas Gruenbacher, (Thu Jun 21, 12:01 pm)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Andreas Gruenbacher, (Fri Jun 22, 5:59 am)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Andreas Gruenbacher, (Thu Jun 21, 11:54 am)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Andreas Gruenbacher, (Sat Jun 9, 11:05 am)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Andreas Gruenbacher, (Sat Jun 9, 11:17 am)
Re: [AppArmor 39/45] AppArmor: Profile loading and manipulat..., Lars Marowsky-Bree, (Tue Jun 12, 1:03 pm)
speck-geostationary