Session Auditing - OWASP Top 10

Session auditing is a critical aspect of web application security, focusing on monitoring and analyzing user sessions to prevent unauthorized access and ensure compliance with security policies. In the context of OWASP Top 10, it directly relates to the vulnerabilities associated with session management.

• **Session Management**: The process of securely handling user sessions from login to logout.
• **Session Hijacking**: An attack that involves taking over a user's session by stealing or predicting a valid session token.
• **Auditing**: The systematic examination of session data to identify vulnerabilities and ensure compliance with security standards.
• **Logging**: Recording session events for later review, which is essential for detecting and responding to security incidents.

1. Implement secure session management practices, including proper session creation, invalidation, and expiration.
2. Use secure, HttpOnly, and SameSite attributes for session cookies to protect against cross-site scripting (XSS) and cross-site request forgery (CSRF).
3. Regularly review session logs for unusual activities or anomalies.
4. Implement multi-factor authentication (MFA) to enhance security.

Below is a simple example of how to implement session logging in a Node.js application:

const express = require('express');
const session = require('express-session');
const morgan = require('morgan');

const app = express();

app.use(morgan('combined')); // Logging requests
app.use(session({
    secret: 'yourSecretKey',
    resave: false,
    saveUninitialized: true,
    cookie: { secure: true, httpOnly: true }
}));

app.get('/', (req, res) => {
    req.session.views = (req.session.views || 0) + 1;
    res.send(`Views: ${req.session.views}`);
});

app.listen(3000, () => {
    console.log('Server running on port 3000');
});