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Date: Thu, 3 Dec 2009 17:10:42 -0700
Subject: PHP 5.3.1 open_basedir bypass


in php 5.3.1 security changelog, we can read, that safe_mode bypass in tempnam() has been already fixed. But safe_mode in 5.3 line is deprecated. We can understand security fix for open_basedir bypass, but not for safe_mode in 5.3.
Annoying is the fact, that exploit for bypass open_basedir or safe_mode in php 5.3.1 is avaliable in

we can use symlink trick like in

The issue has been reported to PHP, but did not obtain a meaningful response.
Very similar issue has been reproted in October 2006 by Stefan Esser (SREASON:1692)

This issue has been fixed.
Small difference, with this is that we need create fake directories structure.

Maksymilian Arciemowicz

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