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Directory traversal in CitrusDB

RedTeam found a directory traversal vulnerability in CitrusDB which results in inclusion of any accessible local .php file.

Details
=======

Product: CitrusDB
Affected Version: 0.3.6, probably <= 0.3.5, too
Immune Version: none (2005-02-03)
OS affected: all
Security-Risk: medium
Remote-Exploit: no
Vendor-URL: http://www.citrusdb.org
Vendor-Status: informed
Advisory-URL: http://www.redteam-pentesting.de/advisories/rt-sa-2005-005
Advisory-Status: public
CVE: CAN-2005-0411
(https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0411#)

Introduction
============

Description from vendor: "CitrusDB is an open source customer database
application that uses PHP and a database backend (currently MySQL) to keep track of customer information, services, products, billing, and customer service information."

It is possible to include any local accessible .php file. 

More Details
============

CitrusDB uses a wrapper script (./citrusdb/tools/index.php) to load different modules and tools. The GET parameter "load"   specifies which file should be included. With a relative path appended any .php file, that may be accessed by the script, on the server may be included.

Proof of Concept
================

To include /tmp/exploit.php use:
http://<target>/citrusdb/tools/index.php?load=../../../../../../tmp/exploit
Note: You need to be logged in to access this url.

Workaround
==========

n/a (2005-02-03)

Fix
===

n/a (2005-02-03)

Security Risk
=============

The security risk is rated medium. An attacker needs to be able to create a .php file on the local filesystem which is normally a high barrier but in shared hosting enviroments this may be easier.

History
=======

2005-02-04 Email sent to author 
2005-02-12 CVE number requested 
2005-02-14 posted as CAN-2005-0411
2009-05-08 Updated Advisory URL

RedTeam
=======

RedTeam is a penetration testing group working at the Laboratory for Dependable Distributed Systems at RWTH-Aachen University. You can find more information on the RedTeam Project at
http://www.redteam-pentesting.de