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Constructr CMS 3.03 Multiple Remote Vulnerabilities (XSS/SQLi)

Medium

Advisory ID

ZSL-2011-5001

Release Date

11 March 2011

Vendor

phaziz interface design - http://www.constructr-cms.org

Affected Version

3.03.0

CVE

N/A

Tested On

Tested on: Microsoft Windows XP Professional SP3 (EN), Apache 2.2.14 (Win32), PHP 5.3.1, MySQL 5.1.41

Summary

ConstructrCMS is a new and fresh Content Management System build with the Power of PHP and MySQL. The Backend is mostly controlled by Ajax for a unique User Experience.

Description

The CMS suffers from several vulnerabilities (SQL and XSS). The sql issue can be triggered when the app tries to parse malicious arguments to the 'page_id' in the /xmlOutput/constructrXmlOutput.content.xml.php script with user input not validated. The result can be seen in the source code of the page itself. The xss issue (GET) is thru 'user' and 'hash' parameter in the /backend/login.php script.

$PAGE_ID = $_REQUEST['page_id'];
...
   $select_content = $conContent -> query("
          SELECT *
          FROM $DB_TABLE_CONSTRUCTR_CONTENT
          WHERE page_id = '$PAGE_ID'
          ORDER BY sort ASC
   ")or die(mysql_error());
...
     while ($all_content = $conContent -> fetch_array($select_content))
     {
          $id            = $all_content['id'];
          $page_id       = $all_content['page_id'];

Proof of Concept

constructr_sqlxss.txtTXT

Disclosure Timeline

N/A

Credits

Vulnerability discovered by Gjoko Krstic

References

[1]http://www.exploit-db.com/exploits/16963/

[2]http://packetstormsecurity.org/files/99204

[3]http://securityreason.com/wlb_show/WLB-2011030049

[4]http://www.securityfocus.com/bid/46842

[5]http://secunia.com/advisories/43743/