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rt-sa-2005-005.txt

rt-sa-2005-005.txt
Posted Feb 25, 2005
Site tsyklon.informatik.rwth-aachen.de

CitrusDB suffers from a directory traversal vulnerability in version 0.3.6.

tags | advisory
advisories | CVE-2005-0411
MD5 | 83d9ab22760446d7eab12e29f0495d5a

rt-sa-2005-005.txt

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                   Advisory: 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://tsyklon.informatik.rwth-aachen.de/redteam/advisories/rt-sa-2005
-005
Advisory-Status: public
CVE: CAN-2005-0411
(http://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

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://tsyklon.informatik.rwth-aachen.de/redteam/

--
Maximillian Dornseif, Dipl. Jur., CISSP
Laboratory for Dependable Distributed Systems, RWTH Aachen University
Tel. +49 241 80-21431 - http://md.hudora.de/

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