SMTP server identify must be enforced

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Metadata

ID: java-security/smtp-insecure-connection

Language: Java

Severity: Warning

Category: Security

CWE: 297

Description

When a program establish an SMTP connection, server identity should be checked.

Learn More

CWE-297: Improper Validation of Certificate with Host Mismatch

Non-Compliant Code Examples

class NotCompliant {
    public void myMethod() {
        Email email = new SimpleEmail();
        email.setHostName("smtp.servermail.com");
        email.setSmtpPort(465);
        email.setAuthenticator(new DefaultAuthenticator(username, password));
        // email.setSSLOnConnect(true);
        email.setFrom("user@gmail.com");
        email.setSubject("TestMail");
        email.setMsg("This is a test mail ... :-)");
        email.addTo("foo@bar.com");
        email.send();
    }
}

Compliant Code Examples

class Compliant {
    public void myMethod() {
        Email email = new SimpleEmail();
        email.setHostName("smtp.servermail.com");
        email.setSmtpPort(465);
        email.setAuthenticator(new DefaultAuthenticator(username, password));
        email.setSSLOnConnect(true);
        email.setFrom("user@gmail.com");
        email.setSubject("TestMail");
        email.setMsg("This is a test mail ... :-)");
        email.addTo("foo@bar.com");
        email.setSSLCheckServerIdentity(true);
        email.send();
    }
}