full-disclosure - Re: PHP 5.2.12/5.3.1 session.save_path safe_mode and open

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Date: Fri, 12 Feb 2010 13:29:19 +0100
From: Stefan Esser <stefan.esser@...tioneins.de>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: PHP 5.2.12/5.3.1 session.save_path safe_mode
 and open_basedir bypass

Hello,
> safe_mode and open_basedir usually use small providers. Of course, this
> is idiotic use safe_mode and open_basedir when we can bypass it via
> symlinks.
>   
The Hardened-PHP project already explained in 2006 that open_basedir and
symlink do not mix. It is a not fixable design problem. So any advisory
explaining how to bypass open_basedir with a symlink attack is just
repeating news from 4 years ago.

http://www.hardened-php.net/advisory_082006.132.html


Regards,
Stefan Esser

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