I am testing a CTF challenge on Vercel. The challenge is made with Flask and required subprocess. Is this something that can be done on Vercel? Sorry if its a noobie question. The challenge gets deployed but the commands are not executed. The relevant code is this:
if command_part: try: if platform.system() == 'Windows': command_part = command_part.replace('ls', 'dir').replace('cat', 'type') output = subprocess.check_output(shlex.split(command_part), shell=(platform.system() == 'Windows'), stderr=subprocess.STDOUT, text=True).strip() if "is not recognized as an internal or external command" in output: message = f'"{text_part}" reported to admin.
"{command_part}" command not allowed.' else: message = f'"{text_part}" reported to admin.
{output}' except subprocess.CalledProcessError as e: output = e.output.strip() if "is not recognized as an internal or external command" in output: message = f'"{text_part}" reported to admin.
"{command_part}" command not allowed.' else: message = f'"{text_part}" reported to admin.
{output}' else: message = f'"{text_part}" reported to admin.'