bugtraq - Re: PHP security (or the lack thereof)

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Date: Mon, 26 Jun 2006 21:37:08 +0200
From: Mrten <bugtraq@...nl>
To: "Geo." <geoincidents@....net>
Cc: bugtraq@...urityfocus.com
Subject: Re: PHP security (or the lack thereof)

Om 18:06 op maandag 26 juni 2006, Geo.:

> ...
>>   "The configuration flexibility of PHP is equally rivalled by the code
>> flexibility. PHP can be used to build complete server applications,
>> with all the power of a shell user, or it can be used for simple
>> server-side includes with little risk in a tightly controlled
>> environment. How you build that environment, and how secure it is, is
>> largely up to the PHP developer."

> And is the default install wide open or tightly controlled? I mean from a
> security standpoint we have been screaming for years at Microsoft to change
> their defaults to firewall on and things locked instead of open.

> Is php secure by default when it's installed on a server?

no, it is definitely not.

with things like allow_url_fopen [1] defaulting to true which allows
remote scripts to be include()d, safe mode being off [2], functions
like system() and shell_exec() allowing the script to execute random
programs on the webserver, things are not quite there yet.

Mrten.

[1] http://www.php.net/manual/en/ref.filesystem.php#ini.allow-url-fopen
[2] yes, i know it's an ugly workaround. it's a useful one, though.

-- 
Be the change you want to see in the world. --Mahatma Ghandi