Clear-text protocols as ftp, telnet or non secure http are lacking encryption of transported data. They are
also missing the capability to build an authenticated connection. This mean that any attacker who can sniff traffic from the network can read, modify
or corrupt the transported content. These protocol are not secure as they expose applications to a large range of risk:
Note also that using the http protocol is being deprecated by major web browser.
In the past, it has led to the following vulnerabilities:
There is a risk if you answered yes to any of those questions.
ssh as an alternative to telnet sftp, scp or ftps instead of ftp https instead of http SMTP over SSL/TLS or SMTP with STARTTLS instead of clear-text SMTP It is recommended to secure all transport channels (event local network) as it can take a single non secure connection to compromise an entire application or system.
url = "http://example.com"; // Sensitive url = "ftp://anonymous@example.com"; // Sensitive url = "telnet://anonymous@example.com"; // Sensitive
For nodemailer:
const nodemailer = require("nodemailer");
let transporter = nodemailer.createTransport({
secure: false, // Sensitive
requireTLS: false // Sensitive
});
const nodemailer = require("nodemailer");
let transporter = nodemailer.createTransport({}); // Sensitive
For ftp:
var Client = require('ftp');
var c = new Client();
c.connect({
'secure': false // Sensitive
});
For telnet-client:
const Telnet = require('telnet-client'); // Sensitive
url = "https://example.com"; // Compliant url = "sftp://anonymous@example.com"; // Compliant url = "ssh://anonymous@example.com"; // Compliant
For nodemailer one of the following options must be set:
const nodemailer = require("nodemailer");
let transporter = nodemailer.createTransport({
secure: true, // Compliant
requireTLS: true, // Compliant
port: 465, // Compliant
secured: true // Compliant
});
For ftp:
var Client = require('ftp');
var c = new Client();
c.connect({
'secure': true // Compliant
});
No issue is reported for the following cases because they are not considered sensitive:
localhost