[FD] Aura Video Converter v1.6.3 - DLL Hijacking Exploit

Document Title: =============== Aura Video Converter v1.6.3 - DLL Hijacking Exploit References (Source): ==================== http://ift.tt/2cPHEMH Release Date: ============= 2016-10-04 Vulnerability Laboratory ID (VL-ID): ==================================== 1965 Common Vulnerability Scoring System: ==================================== 4.3 Product & Service Introduction: =============================== Aura Video Converter is a gift from Aura4You. We make this video converter completely free for everyone. You can download and use this free video converter for any purpose. It's a free video converter for everybody. Aura Free Video Converter is one of the most renowned free video converters for converting video files between various formats, with fast converting speed and excellent video quality. (Copy of the Vendor Homepage: http://ift.tt/1McILma ) Abstract Advisory Information: ============================== An independent vulnerability laboratory researcher discovered a dll hijacking exploit in the Aura Video Converter v1.6.3 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 Aura Video Converter v1.6.3 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: [+] Aura Video Converter 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 2. Rename the dynamic link library to nvcuvenc.dll 3. Copy nvcuvenc.dll to C:Program FilesAura4YouAura Video ConverterAuraVideoConv.exe 4. Launch AuraVideoConv.exe 5. Now the MessageBox executes! -- PoC Exploit

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