Advisory: SQL-Injection in CitrusDB

A group of students at our lab called RedTeam found an SQL-Injection
vulnerability in CitrusDB.

Details

Product: CitrusDB
Affected Version: 0.3.6 (verified), probably <= 0.3.5, too
Immune Version: none
OS affected: all
Security-Risk: low
Remote-Exploit: no
Vendor-URL: http://www.citrusb.org
Vendor-Status: informed
Advisory-URL:
http://tsyklon.informatik.rwth-aachen.de/redteam/advisories/rt-sa-2005
-004
Advisory-Status: public
CVE: CAN-2005-0410
(http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0410#&#41;

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."

CitrusDB does not filter special characters (e.g. single quotes) from
uploaded csv files.

More Details

In ./citrusdb/tools/importcc.php data from a previous uploaded csv file
is
inserted into the mysql database but none of the values is filtered.

Proof of Concept

A csv file with content

',

makes the SQL-Query in ./citrusdb/tools/importcc.php fail.

Workaround

Check csv files manually for single quotes before upload.

Fix

n/a

Security Risk

The security risk is rated low because only special users may upload csv
files and with this SQL injection it is only possible to inject data
that
could be easier injected directly through csv file.

History

2005-02-04 Email sent to author
2005-02-12 CVE number requested
2005-02-14 posted as CAN-2005-0410

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/