Zenario CMS 7.6 SQL Injection

Zenario CMS version 7.6 suffers from a remote SQL injection vulnerability.


MD5 | 456b9d23f5ca5260feeb12ed166069fb

Document Title:
===============
Zenario v7.6 CMS - SQL Injection Web Vulnerability


References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=2043


Release Date:
=============
2018-01-16


Vulnerability Laboratory ID (VL-ID):
====================================
2043


Common Vulnerability Scoring System:
====================================
5.7


Vulnerability Class:
====================
SQL Injection


Current Estimated Price:
========================
500a! - 1.000a!


Product & Service Introduction:
===============================
Zenario is a web-based content management system for sites with one or many languages. It's designed to grow with
your site, adding extranet, online database and custom functionality when you need it. Zenario 7.2 has a new feature
to add CSS styles and media queries, thereby allowing you to make mobile-friendly "responsive" email newsletters.

(Copy of the Homepage: http://zenar.io/ )


Abstract Advisory Information:
==============================
The vulnerability laboratory core research team discovered a remote sql-injection vulnerability in the official Zenario v7.6 content management system.


Vulnerability Disclosure Timeline:
==================================
2018-01-16: Public Disclosure (Vulnerability Laboratory)


Discovery Status:
=================
Published


Affected Product(s):
====================
Zenario
Product: Zenario - Content Management System (Web-Application) 7.1

Zenario
Product: Zenario - Content Management System (Web-Application) 7.2

Zenario
Product: Zenario - Content Management System (Web-Application) 7.3

Zenario
Product: Zenario - Content Management System (Web-Application) 7.4

Zenario
Product: Zenario - Content Management System (Web-Application) 7.5

Zenario
Product: Zenario - Content Management System (Web-Application) 7.6


Exploitation Technique:
=======================
Remote


Severity Level:
===============
Medium


Technical Details & Description:
================================
A remote sql-injection web vulnerability has been discovered in the official Zenario v7.1 - v7.6 content management system web-application.
The sql-injection web vulnerability allows remote attackers with restricted account to execute own malicious sql commands to compromise
the web-application and database management system.

The sql-injection vulnerability is location in the `Name` input field of the `Categories - Edit` module create POST method request.
Remote attackers with restricted privileged accounts are able to execute own malicious sql commands to compromise the application.
The attack vector of the vulnerability occurs on the client-side and the request method to inject is POST.

The security risk of the sql-injection vulnerability is estimated as medium with a common vulnerability scoring system count of 5.7.
Exploitation of the sql-injection web vulnerability requires a restricted site admin user account without user interaction.
Successful exploitation of the sql-injection vulnerability results in web-application or database management system compromise.

Request Method(s):
[+] POST

Vulnerable Module(s):
[+] Categories - Edit

Vulnerable File(s):
[+] organizer.php
[+] admin_boxes.ajax.php

Vulnerable Parameter(s):
[+] Name (current_value)


Proof of Concept (PoC):
=======================
The sql-injection vulnerability can be exploited by remote attackers with restricted user account without user interaction.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.

Vulnerable Module: Categories > Edit > Name - Current_Value (Input Field)

--- PoC Session Logs [GET] (restricted_admin) ---
Status: 200[OK]
POST http://zenario.localhost:8080/zenario/admin/admin_boxes.ajax.php?path=zenario_categories&id=4
Mime Type[text/html]
Request Header:
Host[zenario.localhost:8080]
User-Agent[Mozilla/5.0 (Windows NT 10.0; WOW64; rv:51.0) Gecko/20100101 Firefox/51.0]
Content-Type[application/x-www-form-urlencoded; charset=UTF-8]
X-Requested-With[XMLHttpRequest]
Referer[http://zenario.localhost:8080/zenario/admin/organizer.php?]
Content-Length[664]
Cookie[__cfduid=; PHPSESSID=; COOKIE_LAST_ADMIN_USER=restricted_admin; cookies_accepted=1]
Connection[keep-alive]
POST-Daten:
_save[true]
_confirm[]
_box[%7B%22key%22%3A%7B%22id%22%3A%224%22%2C%22parent_id%22%3A0%7D%2C%22tabs%22%3A%7B%22details%22%3A%7B%22edit_mode%22%3A%7B%22on%22%3A1%7D%2C%22fields%22%3A%7B%22name%22%3A%7B%22current_value%22%3A%22'[SQL-INJECTION VULNERABILITY!]%22%7D%2C%22public%22%3A%7B%22current_value%22%3Afalse%7D%2C%22landing_page%22%3A%7B%22_was_hidden_before%22%3Atrue%2C%22current_value%22%3A%22%22%7D%7D%7D%7D%2C%22_sync%22%3A%7B%22cache_dir%22%3A%22ab_RzlTYAf9_4KW7OQZI%22%2C%22password%22%3A%22ulZNWRvsZK50661bLyNWnaEux6JIjHDPtwn9gdRLF6U%3D%22%2C%22iv%22%3A%228ovqgY47Ej1ExIotzyCRzQ%3D%3D%22%2C%22session%22%3Afalse%7D%7D]
Response Header:
Server[Apache/2.4.23 (Ubuntu)]
X-Frame-Options[SAMEORIGIN]
Content-Length[1862]
Connection[Keep-Alive]
Content-Type[text/html; charset=UTF-8]


Reference(s):
http://zenario.localhost:8080/
http://zenario.localhost:8080/zenario/
http://zenario.localhost:8080/zenario/admin/
http://zenario.localhost:8080/zenario/admin/admin_boxes.ajax.php


Solution - Fix & Patch:
=======================
1. Escape the content of the name input field
2. Sanitize the parameter of the current_value
3. Disallow the usage of special chars in the current_value parameter
4. Use a prepared statement to prevent further exploitation


Security Risk:
==============
The security risk of the remote sql-injection web vulnerability in the web-application is estimated as medium (cvss 5.7).


Credits & Authors:
==================
Vulnerability-Lab [[email protected]] - https://www.vulnerability-lab.com/show.php?user=Vulnerability-Lab


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=========================
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