# Authentication & Authorization Flaws Analysis

## Already Fixed ✅

1. **Missing Token Type Validation** ✅
   - Fixed in `auth-enhanced.js` line 31
   - Checks `decoded.type !== 'admin'`
   - Prevents gallery tokens from accessing admin endpoints

2. **No Audit Logging** ✅
   - Added `login_attempts` table
   - Tracks all login attempts with IP, user agent, timestamp
   - Automatic cleanup of old records

3. **Account Lockout Protection** ✅
   - Lockout after 5 failed attempts
   - 30-minute lockout duration
   - Prevents brute force attacks

4. **Basic Session Management** ✅
   - Added session timeout middleware
   - Tracks active sessions
   - Can invalidate sessions

## Still Needs Fixing ❌

### 1. Weak Password Requirements 🔴
- **Current**: No minimum length validation
- **Required**: Minimum 12 characters + complexity
- **Risk**: Vulnerable to brute force

### 2. Rate Limiting Bypass 🔴
- **Current**: Invalid JWT bypasses rate limiting
- **Location**: `server.js:64-71`
- **Risk**: Attackers can spam with invalid tokens

### 3. No Password Complexity 🟡
- **Current**: Any 6+ character password accepted
- **Required**: Upper, lower, number, special char
- **Risk**: Weak passwords

### 4. No Token Revocation 🟡
- **Current**: Tokens valid until expiration
- **Required**: Blacklist/revocation mechanism
- **Risk**: Can't invalidate compromised tokens

### 5. Fixed Bcrypt Rounds 🟡
- **Current**: Hardcoded to 10 rounds
- **Required**: Configurable (12-14 recommended)
- **Risk**: May become insufficient over time

### 6. In-Memory Session Storage 🟡
- **Current**: Sessions stored in memory
- **Required**: Redis or database storage
- **Risk**: Lost on restart, not scalable

## Priority Fixes

1. **Rate Limiting Bypass** (Critical)
2. **Password Requirements** (High)
3. **Password Complexity** (High)
4. **Token Revocation** (Medium)
5. **Bcrypt Rounds** (Medium)
6. **Session Storage** (Low - for scalability)