bugtraq - Re: [Full-disclosure] PHP filesystem attack vectors

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Date: Sun, 08 Feb 2009 14:12:43 +0100
From: Stefan Esser <stefan.esser@...tioneins.de>
To: ascii <ascii@...amail.com>
Cc: Bugtraq <bugtraq@...urityfocus.com>,
	Full-Disclosure <full-disclosure@...ts.grok.org.uk>
Subject: Re: [Full-disclosure] PHP filesystem attack vectors

Hello,

ascii schrieb:
> PHP filesystem attack vectors
> 
>  Name              PHP filesystem attack vectors
>  Systems Affected  PHP and PHP+Suhosin

This research misses some information.

It compares "vanilla PHP" to "patched PHP" but that is not exactly true.

PHP + Suhosin replaces the system's realpath() with an own 
implementation based on FreeBSD (+ some hardening).

This means everything presented that works against PHP + Suhosin should 
work against vanilla PHP when used on FreeBSD, OS X, OpenBSD, ...

Additionally the research should be repeated with PHP 5.3-beta, because 
it now does something very similar to Suhosin.

Stefan Esser