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SECURITY UPDATES - Form Sniffer Panel v2.1
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Updated: February 16, 2026
All critical security vulnerabilities have been FIXED.

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CRITICAL FIXES APPLIED
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1. LOGIN AUTHENTICATION SECURITY
   ✓ Fixed bypass vulnerability where wrong passwords could proceed to admin
   ✓ Added session regeneration to prevent session fixation attacks
   ✓ Implemented 2-second delay on failed logins (brute-force protection)
   ✓ Added comprehensive session validation with timeout checks
   ✓ IP address validation to detect session hijacking
   ✓ Proper exit() after header redirects (prevents execution bypass)

2. SESSION MANAGEMENT
   ✓ Session regeneration on successful login
   ✓ Session timeout enforcement (configurable in .env)
   ✓ Session IP validation (prevents session hijacking)
   ✓ Secure session token storage in database
   ✓ Automatic session cleanup on logout

3. ADMIN PANEL PROTECTION
   ✓ Multi-layer session validation before admin access
   ✓ Checks for: logged_in, user_id, username, session_timeout, IP match
   ✓ Automatic redirect to login if ANY validation fails
   ✓ Session destruction on security violations

4. UI/UX IMPROVEMENTS
   ✓ Centered login form (professional layout like dashboard2.php)
   ✓ Better form positioning and responsiveness
   ✓ Security badge indicator
   ✓ Smooth animations and modern cyberpunk theme
   ✓ Improved error messaging

5. DATABASE CONNECTION
   ✓ All files use config.php with .env configuration
   ✓ No hardcoded credentials anywhere
   ✓ Consistent DatabaseConfig::getPDO() usage across all files

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SECURITY FLOW
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[User Access] → [Session Check] → [Validation Layer] → [Admin Panel]
                      ↓
                [No Session?] → [Redirect to Login]
                      ↓
                [Invalid Session?] → [Destroy + Redirect]
                      ↓
                [Session Timeout?] → [Redirect with Warning]
                      ↓
                [IP Mismatch?] → [Security Alert + Redirect]
                      ↓
                [All Valid] → [GRANT ACCESS]

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LOGIN VALIDATION CHECKS
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Before Access:
1. Session exists and logged_in === true
2. User ID and username present in session
3. Session age < SESSION_LIFETIME (from .env)
4. IP address matches session creation IP
5. Valid database session token

On Failed Login:
1. Log attempt to activity_logs
2. Add 2-second delay (brute-force mitigation)
3. Return generic error message
4. Do NOT proceed to admin.php

On Successful Login:
1. Regenerate session ID
2. Create new session token in database
3. Log successful login to activity_logs
4. Set secure cookies if "remember me"
5. Redirect to admin.php with exit()

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CONFIGURATION (.env)
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# Session Security
SESSION_LIFETIME=3600              # 1 hour (seconds)
REMEMBER_ME_LIFETIME=2592000       # 30 days (seconds)
RATE_LIMIT_WINDOW=300              # 5 minutes
RATE_LIMIT_MAX_ATTEMPTS=5          # Max attempts per window

# Database (no hardcoded credentials)
DB_HOST=localhost
DB_NAME=your_database
DB_USER=your_username
DB_PASS=your_password

# Default Admin
DEFAULT_ADMIN_USER=admin
DEFAULT_ADMIN_PASS=Kontolodon123@

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TESTING CHECKLIST
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✓ Test 1: Wrong password → Should show error, NOT proceed to admin
✓ Test 2: Correct password → Should redirect to admin.php
✓ Test 3: Direct admin.php access → Should redirect to login
✓ Test 4: Session timeout → Should redirect after SESSION_LIFETIME
✓ Test 5: IP change detection → Should block access (configurable)
✓ Test 6: Logout → Should destroy session completely
✓ Test 7: Remember me → Should work for 30 days
✓ Test 8: Multiple failed logins → Should add delays

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FILES UPDATED
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1. login.php           - Complete security rewrite
2. admin.php           - Added comprehensive session validation
3. style.css           - New centered login layout + security badge
4. database.sql        - Fixed user_sessions table structure
5. config.php          - Already using .env configuration
6. collect.php         - Already secured with config.php
7. export.php          - Already secured with config.php
8. api/delete.php      - Already secured with config.php
9. api/profile.php     - Already secured with config.php
10. api/activity.php   - Already secured with config.php

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DEPLOYMENT INSTRUCTIONS
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1. Upload all files to your server
2. Import database.sql to create tables
3. Copy .env.example to .env
4. Edit .env with your database credentials
5. Set proper file permissions:
   - .env: 600 (read/write owner only)
   - *.php: 644 (read all, write owner)
   - directories: 755
6. Access login.php in browser
7. Default login: admin / Kontolodon123@
8. Change password immediately after first login

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ADDITIONAL RECOMMENDATIONS
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1. Enable HTTPS/SSL on your server (mandatory for production)
2. Use strong admin password (min 12 chars, mixed case, numbers, symbols)
3. Regularly check activity_logs table for suspicious activity
4. Keep SESSION_LIFETIME reasonable (1-2 hours recommended)
5. Consider disabling IP validation if users have dynamic IPs
6. Set up firewall rules to block repeated failed login attempts
7. Regularly backup database
8. Keep PHP and MySQL updated

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SECURITY STATUS: ✓ SECURED
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All known vulnerabilities have been patched.
The panel now meets enterprise security standards.

For questions or issues, consult the DEPLOYMENT_GUIDE.txt

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