Integration CSRF Protection for your website

Description

To ensure comprehensive security when implementing Google Authenticator for 2FA, we’ll also integrate robust CSRF (Cross-Site Request Forgery) protection. Here’s our combined security approach:

CSRF + 2FA Implementation Plan

1. CSRF Protection Implementation

• Token-Based Protection:

  • Generate unique CSRF tokens for all authenticated forms and sensitive actions

  • Implement same-origin policy verification

  • Set appropriate CORS headers

• Session Management:

  • Secure cookie attributes (HttpOnly, Secure, SameSite)

  • Token rotation after each sensitive action

  • Short token expiration times

2. Combined 2FA + CSRF Flow

1. User submits login form (with CSRF token)

2. System verifies CSRF token before processing credentials

3. After password verification, system prompts for 2FA code

4. 2FA verification form includes new CSRF token

5. Final authentication completes only after both verifications

3. Security Enhancements

• Double Token Verification:

  • Separate CSRF tokens for login form and 2FA verification

  • Token binding to session and user state

• Request Validation:

  • Verify HTTP Referer headers

  • Validate request timing (prevent delayed attacks)

  • Implement CAPTCHA after multiple failed attempts

Technical Implementation Details

Testing Protocol

1. CSRF Testing:

   • Automated CSRF attack simulation

   • Token validation tests

   • Session fixation tests

2. Combined 2FA Security Testing:

   • Simultaneous CSRF and 2FA bypass attempts

   • Token replay attacks

   • Time-based attack simulations