File Manager V1.5
FILE_CONTENT: SECURITY_README.md
# KE-Technologies Security Implementation
## 🛡️ Overview
This security implementation provides comprehensive protection against the types of attacks that compromised your website. The system includes file integrity monitoring, automated backups, input validation, security logging, and real-time threat detection.
## 🚨 Critical Security Issues Fixed
1. **Database Security**: Replaced vulnerable `db_conn.php` with secure PDO implementation
2. **Input Validation**: Added comprehensive sanitization and validation for all user inputs
3. **File Integrity**: Implemented real-time monitoring of critical files
4. **Backup System**: Automated backup and recovery mechanisms
5. **Access Control**: Rate limiting, IP whitelisting, and CSRF protection
6. **Security Headers**: Added comprehensive security headers
7. **Logging & Monitoring**: Complete audit trail of all security events
## 📁 File Structure
```
KE-Technologies/
├── security/
│ ├── config.php # Security configuration
│ ├── security_middleware.php # Core security functions
│ ├── file_monitor.php # File integrity monitoring
│ ├── backup_manager.php # Backup and recovery
│ ├── logger.php # Security logging
│ ├── dashboard.php # Security dashboard
│ ├── init.php # Setup script
│ └── cron_tasks.php # Automated tasks
├── secure_db_conn.php # Secure database connection
├── secure_send_mail.php # Secure contact form handler
├── index.php # Updated with security
└── SECURITY_README.md # This file
```
## 🚀 Quick Setup
### 1. Initialize Security System
```bash
# Run the initialization script
php security/init.php
```
### 2. Configure Settings
Edit `security/config.php`:
- Update `ADMIN_IP_WHITELIST` with your IP addresses
- Set `ALERT_EMAIL` to your email address
- Configure database encryption key
- Adjust security settings as needed
### 3. Database Setup
Update `secure_db_conn.php`:
- Set correct database credentials
- Test database connection
### 4. Test Security Features
- Visit `/security/dashboard.php` to access the security dashboard
- Test the contact form with the new secure handler
- Verify file integrity monitoring is working
### 5. Set Up Automation (Recommended)
Add to your crontab:
```bash
# Run security tasks every 5 minutes
*/5 * * * * php /path/to/KE-Technologies/security/cron_tasks.php
# Daily backup at 2 AM
0 2 * * * php /path/to/KE-Technologies/security/cron_tasks.php
```
## 🔧 Configuration Options
### Security Features
- **File Integrity Monitoring**: Detects unauthorized changes to critical files
- **Rate Limiting**: Prevents brute force and DoS attacks
- **Input Validation**: Sanitizes all user inputs
- **CSRF Protection**: Prevents cross-site request forgery
- **Security Headers**: Adds protective HTTP headers
- **Emergency Shutdown**: Automatic site protection during attacks
### Backup System
- **Automated Backups**: Regular backups of critical files
- **Emergency Backups**: Triggered during security breaches
- **Retention Policy**: Automatic cleanup of old backups
- **Restore Functionality**: Easy restoration from backups
### Monitoring & Alerts
- **Real-time Logging**: All security events logged
- **Email Alerts**: Immediate notification of critical events
- **Dashboard**: Web-based security monitoring
- **Audit Trail**: Complete history of all activities
## 🚨 Security Dashboard
Access the security dashboard at: `/security/dashboard.php`
Features:
- Real-time security status
- File integrity monitoring
- Backup management
- Security event logs
- Emergency controls
## 🔒 Security Best Practices
### Immediate Actions Required:
1. **Change Default Passwords**: Update all database and admin passwords
2. **Update IP Whitelist**: Add your trusted IP addresses
3. **Configure Email Alerts**: Set up proper email notifications
4. **Test Backup System**: Verify backups are working correctly
5. **Review Logs**: Check security logs regularly
### Ongoing Maintenance:
1. **Monitor Dashboard**: Check security status daily
2. **Review Alerts**: Investigate all security alerts promptly
3. **Update Hashes**: After legitimate file changes, update integrity hashes
4. **Backup Verification**: Regularly test backup restoration
5. **Log Analysis**: Review security logs for patterns
## 🚑 Emergency Procedures
### If Attack Detected:
1. **Emergency Shutdown**: System automatically activates emergency mode
2. **Backup Creation**: Emergency backup created automatically
3. **Alert Notification**: Immediate email alerts sent
4. **Access Restriction**: Only admin IPs allowed access
### Manual Emergency Actions:
```bash
# Enable emergency shutdown
touch security/emergency_shutdown.flag
# Create emergency backup
php security/backup_manager.php?action=create
# Check file integrity
php security/file_monitor.php
```
### Recovery Steps:
1. Access security dashboard from admin IP
2. Review security logs and identify attack vector
3. Restore from clean backup if necessary
4. Update file integrity hashes after cleanup
5. Disable emergency mode when safe
## 📊 Monitoring & Alerts
### Alert Types:
- **CRITICAL**: File changes, security breaches, system failures
- **WARNING**: Suspicious activity, rate limit violations
- **INFO**: Normal operations, successful backups
- **ERROR**: System errors, failed operations
### Log Locations:
- Security events: `logs/security_YYYY-MM.log`
- File integrity: `security/file_hashes.json`
- Rate limiting: `security/rate_limits.json`
- Backups: `backups/` directory
## 🔧 Troubleshooting
### Common Issues:
**Permission Errors**:
```bash
chmod 755 security/
chmod 755 logs/
chmod 755 backups/
```
**Database Connection Issues**:
- Check credentials in `secure_db_conn.php`
- Verify database exists and is accessible
- Check MySQL/MariaDB service status
**File Integrity Alerts**:
- Review changes in security dashboard
- Update hashes after legitimate changes
- Investigate unauthorized modifications
**Backup Failures**:
- Check disk space availability
- Verify backup directory permissions
- Review error logs for details
## 📞 Support
For security issues or questions:
- Email: security@ke-techno.com
- Emergency: Check security dashboard
- Logs: Review `logs/security_*.log` files
## 🔄 Updates
To update the security system:
1. Backup current configuration
2. Replace security files with new versions
3. Run `security/init.php` to update
4. Test all security features
5. Update file integrity hashes
## ⚠️ Important Notes
1. **Never disable security features** without understanding the implications
2. **Regularly update** the security system and monitor for new threats
3. **Test recovery procedures** to ensure they work when needed
4. **Keep backups secure** and verify their integrity regularly
5. **Monitor logs actively** - early detection prevents major breaches
---
**Remember**: Security is an ongoing process, not a one-time setup. Stay vigilant and keep your systems updated!
[ KEMBALI ]