# Security Policy ## Overview This document outlines the security measures implemented in the QR Generator System and best practices for maintaining a secure environment. --- ## Security Features ### 1. Authentication & Authorization **Session-Based Authentication:** - Secure session cookies with HttpOnly flag - Session regeneration on login - Automatic session timeout (8 hours default) - CSRF token protection on all forms **Password Security:** - Bcrypt hashing (cost factor: 10) - Minimum 8 characters required - Password confirmation on creation - Secure password reset flow **Role-Based Access Control (RBAC):** - Admin: Full system access - Manager: QR management, analytics, campaigns - Staff: Create/edit QR codes, view analytics - Viewer: Read-only access ### 2. Input Validation **Server-Side Validation:** - All user input is validated - SQL injection prevention via PDO prepared statements - XSS protection via output escaping - File upload validation **CSRF Protection:** - Token-based CSRF protection - Tokens regenerated per session - Validated on all POST/PUT/DELETE requests ### 3. Database Security **Connection Security:** - Dedicated database user with minimal privileges - Strong password requirements - Connection over localhost (no remote access) - Prepared statements for all queries **Data Protection:** - Passwords hashed with bcrypt - Sensitive data encrypted at rest (optional) - Regular database backups - Audit logging enabled ### 4. File Security **Upload Security:** - File type validation - File size limits - Secure file storage outside web root - Virus scanning (recommended) **Access Control:** - QR codes stored in protected directory - Direct file access prevented - Download through application only ### 5. Network Security **HTTPS Enforcement:** - SSL/TLS required in production - Secure cookie flag enabled - HSTS headers configured - Mixed content prevention **IP Restrictions (Optional):** - Whitelist allowed IP addresses - VPN requirement option - Geographic restrictions ### 6. Headers & Policies **Security Headers:** ``` X-Frame-Options: SAMEORIGIN X-Content-Type-Options: nosniff X-XSS-Protection: 1; mode=block Referrer-Policy: strict-origin-when-cross-origin Content-Security-Policy: default-src 'self' ``` --- ## Threat Model ### Identified Threats 1. **Unauthorized Access** - Mitigation: Strong authentication, session management - Status: Protected 2. **SQL Injection** - Mitigation: PDO prepared statements - Status: Protected 3. **Cross-Site Scripting (XSS)** - Mitigation: Output escaping, CSP headers - Status: Protected 4. **Cross-Site Request Forgery (CSRF)** - Mitigation: CSRF tokens - Status: Protected 5. **Session Hijacking** - Mitigation: Secure cookies, HTTPS, session regeneration - Status: Protected 6. **Brute Force Attacks** - Mitigation: Rate limiting (recommended) - Status: Partially protected 7. **Data Exposure** - Mitigation: Audit logging, access controls - Status: Protected --- ## Security Checklist ### Pre-Production - [ ] Change all default passwords - [ ] Enable HTTPS with valid SSL certificate - [ ] Set `APP_DEBUG=false` in production - [ ] Configure strong database password - [ ] Enable audit logging - [ ] Set up regular backups - [ ] Configure IP restrictions (if needed) - [ ] Review file permissions - [ ] Enable security headers - [ ] Test authentication flows - [ ] Verify CSRF protection - [ ] Check for exposed sensitive files ### Post-Production - [ ] Monitor error logs daily - [ ] Review audit logs weekly - [ ] Update dependencies monthly - [ ] Perform security audits quarterly - [ ] Test backup restoration - [ ] Review user access permissions - [ ] Check for unauthorized changes - [ ] Monitor disk space usage --- ## Incident Response Plan ### 1. Detection **Monitoring:** - Error log monitoring - Unusual activity detection - Failed login attempts - Unauthorized access attempts **Alerts:** - Multiple failed logins - Privilege escalation attempts - Suspicious file modifications - Database anomalies ### 2. Response **Immediate Actions:** 1. Isolate affected systems 2. Preserve evidence (logs, files) 3. Notify security team 4. Document incident timeline **Investigation:** 1. Review audit logs 2. Check database for unauthorized changes 3. Analyze access logs 4. Identify attack vector 5. Assess data exposure ### 3. Recovery **Steps:** 1. Patch vulnerabilities 2. Restore from clean backup (if needed) 3. Reset all credentials 4. Review and update security policies 5. Notify affected users 6. Document lessons learned ### 4. Post-Incident **Actions:** 1. Conduct security review 2. Update security procedures 3. Implement additional controls 4. Train staff on new procedures 5. Schedule follow-up audit --- ## Vulnerability Reporting ### Internal Reporting **Contact:** - Security Team: security@company.internal - Emergency: +1-XXX-XXX-XXXX **Information to Include:** 1. Description of vulnerability 2. Steps to reproduce 3. Potential impact 4. Suggested remediation 5. Your contact information **Response Timeline:** - Acknowledgment: Within 24 hours - Initial assessment: Within 48 hours - Remediation plan: Within 1 week - Fix deployment: Based on severity ### Severity Levels **Critical:** - Remote code execution - Authentication bypass - Data breach - Response: Immediate (< 24 hours) **High:** - Privilege escalation - SQL injection - XSS vulnerabilities - Response: Within 3 days **Medium:** - Information disclosure - CSRF vulnerabilities - Weak encryption - Response: Within 1 week **Low:** - Minor information leaks - UI/UX security issues - Response: Within 2 weeks --- ## Security Best Practices ### For Administrators 1. **Access Management** - Use strong, unique passwords - Enable 2FA (when available) - Limit admin accounts - Regular access reviews 2. **System Maintenance** - Keep software updated - Monitor security advisories - Regular security audits - Backup verification 3. **Monitoring** - Review logs regularly - Set up alerts - Monitor user activity - Track system changes ### For Users 1. **Password Security** - Use strong passwords (12+ characters) - Don't share credentials - Change passwords regularly - Use password manager 2. **Session Security** - Logout when finished - Don't share sessions - Use secure networks - Report suspicious activity 3. **Data Handling** - Don't expose QR codes publicly (unless intended) - Verify URLs before creating QR codes - Report security concerns - Follow data handling policies --- ## Compliance ### Data Protection **GDPR Considerations:** - User consent for data collection - Right to access personal data - Right to deletion - Data breach notification **Internal Policies:** - Data retention policies - Access control policies - Incident response procedures - Regular security training ### Audit Requirements **Logging:** - All user actions logged - System changes tracked - Access attempts recorded - Logs retained for 2 years **Reporting:** - Monthly security reports - Quarterly access reviews - Annual security audits - Incident reports --- ## Security Updates ### Update Process 1. **Monitor Security Advisories** - PHP security announcements - Dependency vulnerabilities - Framework updates 2. **Testing** - Test updates in staging - Verify functionality - Check for breaking changes 3. **Deployment** - Schedule maintenance window - Backup before update - Deploy updates - Verify system functionality 4. **Documentation** - Document changes - Update security policies - Notify users if needed --- ## Contact Information **Security Team:** - Email: security@company.internal - Phone: +1-XXX-XXX-XXXX (24/7) - Emergency: +1-XXX-XXX-XXXX **Escalation:** - IT Director: director@company.internal - CISO: ciso@company.internal --- ## Appendix ### Security Tools **Recommended:** - Fail2ban (brute force protection) - ModSecurity (WAF) - OSSEC (intrusion detection) - Lynis (security auditing) ### Security Resources - OWASP Top 10: https://owasp.org/www-project-top-ten/ - PHP Security Guide: https://www.php.net/manual/en/security.php - MySQL Security: https://dev.mysql.com/doc/refman/8.0/en/security.html --- **Last Updated:** 2024-01-21 **Version:** 1.0.0 **Next Review:** 2024-04-21