Document Title:
===============
Zortam MP3 Studio v21.15 - Insecure File Permissions


References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=1963


Release Date:
=============
2016-09-29


Vulnerability Laboratory ID (VL-ID):
====================================
1963


Common Vulnerability Scoring System:
====================================
5.4


Product & Service Introduction:
===============================
Zortam Mp3 Media Studio is a great all-in-one music tool for organizing your Mp3/Karaoke collection for editing Mp3 ID3 tags, 
ripping your CD, normalizing Mp3, converts Mp3/Wav and Wav/Mp3, to get song lyric and cover arts from the internet and 
keeping your music collection well organized.

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



Abstract Advisory Information:
==============================
An independent vulnerability laboratory researcher discovered an insecure file permission vulnerability in the Zortam MP3 Studio v21.15 software.


Vulnerability Disclosure Timeline:
==================================
2016-09-29:	Public Disclosure (Vulnerability Laboratory)


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


Affected Product(s):
====================
Zortam 
Product: Zortam MP3 Studio - Software 21.15


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


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


Technical Details & Description:
================================
Insecure File Permissions vulnerability has been discovered in the official Zortam MP3 Studio v21.15 software.
The vulnerability exists due to insecure default permissions set on the zPlayer.exe.  

A local attacker could exploit this vulnerability by replacing zPlayer.exe with a malicious executable file.  
The malicious file could execute with the local system user permissions. 



Proof of Concept (PoC):
=======================
Zortam MP3 Studio for windows contains a vulnerability that could allow a local attacker to gain elevated privileges.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below.


-- PoC Exploitation --
C:Program FilesZortam Mp3 Media Studio>cacls zPlayer.exe
C:Program FilesZortam Mp3 Media StudiozPlayer.exe BUILTINUtilisateurs:F

AUTORITE NTSystème:(ID)F
BUILTINAdministrateurs:(ID)F
BUILTINUtilisateurs:(ID)R
AUTORITÉ DE PACKAGE D'APPLICATIONTOUS LES PACKAGES D'APPLICATION:(ID)R


Security Risk:
==============
The security risk of the local  insecure file permission issue in the software core is estimated as medium. (CVSS 5.4)


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]™