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Re: [Full-disclosure] Apache suEXEC privilege elevation / information disclosure
From: Jeffrey Walton <noloader () gmail com>
Date: Mon, 12 Aug 2013 15:03:09 -0400

On Mon, Aug 12, 2013 at 1:28 PM, Coderaptor <coderaptor () gmail com> wrote:
I have been a silent spectator to this drama, and could not resist adding a few thoughts of my own:

1. All software, especially webservers, should ship with secure defaults. Period. It is a fundamental mistake to 
assume all admins who roll out web apps and maintain servers RTFM before rolling out. The key idea here is "time to 
market", and there is huge amount of data to prove this.

+1. All software should be shipped "secure out of the box". Its
amazing so many folks keep making the same mistakes from the 1980s and

Huge amount of software today is turd polishing, open source no exception (though it is supposed to have better track 
record). The blame lies squarely on everyone.

The "more eyes the better" theory is hogwash. I cringe when I hear
anyone discussing the security of crowd sourcing. There's two problems
with their arguments: first is Cognitive Biases, and second is the
Bystander Effect. The biases are being demonstrated by NB and RH, and
its results are typical (no offense NB and RH). The Bystander Effect
ensures that the more people see a bug, the less likely they are going
to do anything about it because they believe someone else has already
done something.

They are well known problems in Security Engineering. See Peter
Gutmann's Engineering Security
(www.cs.auckland.ac.nz/~pgut001/pubs/book.pdf‎) or Ross Anderson's
Security Engineering (http://www.cl.cam.ac.uk/~rja14/book.html).


On Aug 11, 2013, at 3:30 PM, Reindl Harald <h.reindl () thelounge net> wrote:

Am 11.08.2013 23:56, schrieb Stefan Kanthak:
"Reindl Harald" <h.reindl () thelounge net> wrote:
symlinks are to not poision always and everywhere
they become where untrusted customer code is running
blame the admin which doe snot know his job and not
the language offering a lot of functions where some
can be misused

Again: symlinks are well-known as attack vector for years!

and that's why any admin which is not clueless
disables the symlink function - but there exists
code which *is* secure, runs in a crontrolled
environment and make use of it for good reasons

It's not the user/administrator who develops or ships insecure code!

but it's the administrator which has the wrong job if
create symlinks is possible from any random script
running on his servers

anyways, i am done with this thread

the topic is *not* "Apache suEXEC privilege elevation" it
is "admins not secure their servers" - period

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