Visitors Google Map Lite 1.0.1 (FREE) (module mod_visitorsgooglemap Remote Sql Injection)
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- Discovered by	: Chip D3 Bi0s
- Email         : chipdebios[at]gmail[dot]com
- Group         : LatinHackTeam
- Date          : 2010-09-08
- Where         : From Remote

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Affected software description

Application     : Visitors Google Map Lite 1.0.1 (FREE) (module:mod_visitorsgooglemap)
Developer       : Serdar Gökkus
Compatibility   : Joomla 1.5 Native
License         : GPLv2 or later
Date Added      : Sunday August 29, 2010 01:14:14
Download        : http://www.comlantis.com/download/doc_download/2-visitors-google-map-lite-101-free.html

I. BACKGROUND

This extension tracks visitors of your site in real time and displays their
locations in Google Map. It uses three main technologies:

- Map API of Google
- AJAX
- IP geolocation API of IPInfoDB

Content of VisitorsGoogeMap Package:
This extension contains one Joomla Compoment and two Joomla Modules.

com_visitorsgooglemap: This component is responsible for the creation
                       database table during installation and remove
                       it clearly in case of uninstallation.

mod_visitorsgooglemap: This module is responsible for the display of
                       Google Map in desired module position in your
                       template and track the visitors of your Joomla
                       page in the map.

mod_visitorsgooglemap_agent: This module is responsible for the updating
                             visitors information in the database.

II. DESCRIPTION

Some sql injecton vulnerabilities exist in mod_visitorsgooglemap module .


III. ANALYSIS

The bug is in the following files, specifying the lines

/mod_visitorsgooglemap/map_data.php


[16] [if ($_GET['action'] == 'listpoints')
[17]		{
[18]			$lastMarkerID = $_GET['lastMarkerID'];
[19]			ini_set('default_mimetype','text/xml'); // manchmal notwendig
[20]			header ('Content-Type: text/xml'); // reicht nicht immer
[21]			echo '<?xml version="1.0" ?>';
[22]			echo '<xmlresponse>';
[23]	    $database =& JFactory::getDBO();
[24]	    $query = "SELECT * FROM #__visitorsgooglemap_location where id > $lastMarkerID order by id";

 Explanation:As noted in the line [24] $ lastMarkerID
 nowhere is filtered, which result in a query pede unexpected


IV. EXPLOITATION

http://site/path/modules/mod_visitorsgooglemap/map_data.php?action=listpoints&lastMarkerID=0{sql}




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