Joomla com_redshop 1.4&1.5 - SQL Injection Vulnerability

Document Title:
===============
Joomla com_redshop 1.4&1.5 - SQL Injection Vulnerability


References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=2038


Release Date:
=============
2017-02-22


Vulnerability Laboratory ID (VL-ID):
====================================
2038


Common Vulnerability Scoring System:
====================================
6.6


Product & Service Introduction:
===============================
redSHOP is the leading webshop solution for Joomla. You get an advanced and fully integrated native webshop, 
with a built-in template system allowing you to style your shop to your exact needs. A feature rich and powerful shop.

(Copy of the Homepage: http://redcomponent.com/redcomponent/redshop/subscription )


Abstract Advisory Information:
==============================
An independent vulnerability laboratory partner team researcher discovered a remote sql-injection web vulnerability in 
the official Joomla CMS com_redshop v1.4 & v1.5 component.


Vulnerability Disclosure Timeline:
==================================
2017-02-22: Public Disclosure (Vulnerability Laboratory)


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


Affected Product(s):
====================
RedComponent Aps
Product: com_redshop - Joomla Component (Web-Application) 1.4

RedComponent Aps
Product: com_redshop - Joomla Component (Web-Application) 1.5


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


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


Technical Details & Description:
================================
A remote sql-injection vulnerability has been discovered in the official Joomla CMS com_redshop v1.4 & v1.5 component.
The issue allows remote attackers to execute own malicious sql commands to compromise the web-application or dbms.

The sql-injection vulnerability is located in the `pid` parameter of the `redshop` joomla web module. The request method 
to execute is GET and the attack vector is client-side. Remote attackers are able to inject own malicious sql commands 
via vulnerable `pid` parameter to compromise the web-application or dbms. The web vulnerability is a classic sql-injection 
in the joomla content management system `com_redshop` component.

The security risk of the vulnerability is estimated as high with a common vulnerability scoring system count of 6.6. 
Exploitation of the sql-injection vulnerability requires a low privilege web-application user account without user interaction. 
Successful exploitation of the web vulnerability results in web-application or database management system compromise.

Request Method(s):
[+] GET

Vulnerable Components(s):
[+] com_redshop (joomla)

Vulnerable File(s):
[+] index.php

Vulnerable Parameter(s):
[+] pid - cid


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


Dork(s):
inurl:index.php?option=com_redshop
site:index.php?option=com_redshop


PoC: Exploitation
http://localhost/[JOOMLA_PATH]/index.php?option=com_redshop&view=product&pid=[sql]&cid=1


Reference(s):
http://localhost/joomla/
http://localhost/joomla/index.php
http://localhost/joomla/index.php?option=com_redshop


Solution - Fix & Patch:
=======================
The sql-injection web vulnerability can be resolved by a parse and restriction of the vulnerable `pid -cid` parameter.
Disallow the usage of special chars and use the escape function. 
Implement a secure prepared statement to resolve the vulnerability.


Security Risk:
==============
The security risk of the remote sql injection web vulnerability in the web-application plugin is estimated as high. (CVSS 6.6)


Credits & Authors:
==================
Amir - Iranian Exploit Database (www.iedb.ir) [http://www.vulnerability-lab.com/show.php?user=IEDB%20Team]

Thanks: C0dex,B3hz4d,Beni_vanda,Mr_time,Bl4ck M4n,black_security,Yasser,Ramin Assadian,Black_Nofuzi,SecureHost, 
1TED,Mr_Kelever,Mr_keeper,Mahmod,Iedb,Khashayar,B3hz4d4,Shabgard,Cl09er,Be_lucky,MoslemHaghighian,Dr_Iman,8Bit,
Javid,Esmiley_Amir,Mahdi_feizezade,Amin_Zohrabi,Shellshock3 ... all my friends and the Iedb Team.


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