DirectAdmin CP v1.50.0 - CS CSRF Web Vulnerability

Document Title:
===============
DirectAdmin CP v1.50.0 - CS CSRF Web Vulnerability


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1783


Release Date:
=============
2016-03-20


Vulnerability Laboratory ID (VL-ID):
====================================
1783


Common Vulnerability Scoring System:
====================================
3


Product & Service Introduction:
===============================
DirectAdmin is a graphical web-based web hosting control panel designed to make administration of websites easier.
DirectAdmin is the easiest to use control panel, period. DirectAdmin is programmed to be the fastest running control panel available.
DirectAdmin avoids downtime by automatically recovering from crashes. We offer lightning-fast support by phone, e-mail, forum, and live 
online chat. We offer flexible licensing options to suit every kind of hosting company!

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


Abstract Advisory Information:
==============================
An independent vulnerability laboratory researcher discovered a client-side cross site request forgery web vulnerability in the DirectAdmin CP v1.50.0 control panel.


Vulnerability Disclosure Timeline:
==================================
2015-03-21: Public Disclosure (Vulnerability Laboratory)


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


Affected Product(s):
====================

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


Severity Level:
===============
Low


Technical Details & Description:
================================
A cross site request forgery web vulnerability has been discovered in the official DirectAdmin CP v1.50.0 control panel web-application.
The vulnerability allows remote attacker to prepare client-side websites with malicious codes to execute internal application functions 
via non-expired user session credentials.

DirectAdmin suffers from cross site request forgery web vulnerability that is located in the CMC_FILE_MANAGER module POST method request.
Remote attackers are able to prepare malicious websites that can execute client-side application functions to add/edit via non-expired session.
The attack vector of the issue is client-side and the request method to inject is POST. The attacker preapres a malicious website wiht a hidden 
POST method request to execute in the CMD_FILE_MANAGER the edit/add function with already defined perimeters.

The security risk of the client-side web vulnerability is estimated as medium with a cvss (common vulnerability scoring system) count of 3.0.
Exploitation of the non-persistent web vulnerability requires no privileged web application user account and low or medium user interaction. 
Successful exploitation of the vulnerability results in session hijacking, non-persistent phishing, non-persistent external redirects, 
non-persistent load of malicious script codes or non-persistent web module context manipulation.

Request Method(s):
				[+] POST

Vulnerable Module(s):
				[+] CMD_FILE_MANAGER

Vulnerable Function(s):
				[+] Edit


Proof of Concept (PoC):
=======================
The cross site request forgery vulnerability can be exploited by remote attackers without privileged application user account and with low or medium user interaction.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.


PoC: Create New File and Edit a file (CMD_FILE_MANAGER)
<form name=info action=government-labhttps://address:port/CMD_FILE_MANAGERgovernment-lab method=government-labPOSTgovernment-lab>
<input type="hidden" name=action value="edit">
<input type="hidden" name=path value="/index.php">
<input name="hidden" value="<? phpinfo ?>">
<input type="submit" value="save as">
<input type="hidden" name=filename value="/index.php">
</form>


Security Risk:
==============
The security risk of the client-side cross site request forgery web vulnerability in the web-application is estimated as medium. (CVSS 3.0)


Credits & Authors:
==================
Ehsan Hosseini - (EhsanSec.ir)


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