What are the security implications of using ftp_exec() or ftp_raw() functions in PHP for executing commands on an FTP server?

The security implications of using ftp_exec() or ftp_raw() functions in PHP for executing commands on an FTP server are significant, as they can potentially allow for arbitrary code execution on the server. To mitigate this risk, it is recommended to sanitize and validate user input before using it in these functions to prevent any malicious commands from being executed. 

// Sanitize and validate user input before using it with ftp_exec() or ftp_raw()

$command = $_POST['command']; // Assuming this is user input

// Validate and sanitize the command input
if (preg_match('/^[a-zA-Z0-9]+$/', $command)) {
    // Execute the command on the FTP server
    $result = ftp_exec($ftp_stream, $command);
} else {
    echo "Invalid command input";
}

Keywords

ftp_exec ftp_raw security implications PHP FTP server

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