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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