Zortam MP3 Studio v21.15 - Insecure File Permissions

Type vulnerlab
Reporter ZwX - ( http://zwx.fr ) [ http://www.vulnerability-lab.com/show.php?user=ZwX ]
Modified 2016-09-29T00:00:00


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

References (Source):

Release Date:

Vulnerability Laboratory ID (VL-ID):

Common Vulnerability Scoring System:

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:

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

Exploitation Technique:

Severity Level:

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


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 ]

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