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Securing PHP or finding PHP alternatives (was: PHP security (or the lack thereof))
From: Gezim Hoxha <gezimetc () shaw ca>
Date: Fri, 07 Jul 2006 20:48:20 -0600
On Tue, 2006-27-06 at 07:41 -0400, Geo. wrote:
Is php secure by default when it's installed on a server?
This question does not really have any meaning. If you ask, if php
_applications_ are secure by default, the answer is of course "it
depends" (most php applications are broken. Just do a
"grep -R eval ." and see for yourself)
The php safe_mode is not really safe. magic_quotes_gpc is broken by
design. Where does that leave us? Write secure code, validate all input
or get hacked, as is the case with every other software/language.
It's not a meaningless question, it's a quite valid way to look at web
server extensions. You make it sound oh so simple "write secure code" but
I've been a hacker since 1980 when I wrote a bbs program in assembler and
tried to secure it. Writing secure code is anything but simple. It takes a
really good programmer to write code that is secure by design because you
have to understand exactly how the language and in some cases the hardware
you use functions.
A language for websites should never expect to have this level programmers,
heck it's a bunch of artsy web developers who are going to be using it so it
should take that into account and allow the machine administrator to at
least be locked down at the start so he has to enable the features and only
those features the web developers require. It's the only way to make a
powerful web language and still maintain some semblance of security.
With all that's been said in this thread, and all that has been observed
(i.e. a large number of PHP vulnerabilities--please don't try and defend
this; the common thing that everyone agrees on is that PHP tries to
cater to all users (not necessarily programmers, which can make it
insecure), I'm going to ask two questions:
1.) If I have to write PHP, how do I write secure PHP? Give me a number
of ensures that I can follow and check-mark each and live a happy
life--for the most part.
2.) From a security standpoint what is a better, open-source replacement
P.S.: This is my first bugtraq message, so take it easy on me :)
- Securing PHP or finding PHP alternatives (was: PHP security (or the lack thereof)) Gezim Hoxha (Jul 10)