tidy up documentation for alpha release
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Warp Agent
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docs/alpha/sds/SDS-04-Security-Design.md
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docs/alpha/sds/SDS-04-Security-Design.md
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# SDS-04: Security Design
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## 1. Security Overview
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### 1.1 Security Principles
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- **Defense in Depth**: Multiple layers of security
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- **Principle of Least Privilege**: Minimum required permissions
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- **Secure by Default**: Secure default configurations
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- **Input Validation**: Validate all inputs
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- **Output Encoding**: Encode all outputs
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## 2. Authentication
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### 2.1 Authentication Method
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- **JWT Tokens**: JSON Web Tokens for stateless authentication
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- **Token Expiration**: Configurable expiration time
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- **Token Refresh**: Refresh token mechanism (future)
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### 2.2 Password Security
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- **Hashing**: bcrypt with cost factor 10
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- **Password Requirements**: Minimum length, complexity
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- **Password Storage**: Hashed passwords only, never plaintext
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### 2.3 Session Management
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- **Stateless**: No server-side session storage
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- **Token Storage**: Secure storage in frontend (localStorage/sessionStorage)
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- **Token Validation**: Validate on every request
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## 3. Authorization
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### 3.1 Role-Based Access Control (RBAC)
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- **Roles**: Admin, Operator, ReadOnly
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- **Permissions**: Resource-based permissions (storage:read, storage:write)
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- **Role Assignment**: Users assigned to roles
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- **Permission Inheritance**: Permissions inherited from roles
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### 3.2 Permission Model
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```
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Resource:Action
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Examples:
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- storage:read
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- storage:write
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- iscsi:read
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- iscsi:write
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- backup:read
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- backup:write
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- system:read
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- system:write
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```
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### 3.3 Permission Checking
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- **Middleware**: Permission middleware checks on protected routes
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- **Handler Level**: Additional checks in handlers if needed
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- **Service Level**: Business logic permission checks
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## 4. Input Validation
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### 4.1 Validation Layers
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1. **Frontend**: Client-side validation
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2. **Handler**: Request validation
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3. **Service**: Business logic validation
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4. **Database**: Constraint validation
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### 4.2 Validation Rules
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- **Required Fields**: Check for required fields
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- **Type Validation**: Validate data types
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- **Format Validation**: Validate formats (email, IP, etc.)
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- **Range Validation**: Validate numeric ranges
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- **Length Validation**: Validate string lengths
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### 4.3 SQL Injection Prevention
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- **Parameterized Queries**: Use parameterized queries only
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- **No String Concatenation**: Never concatenate SQL strings
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- **Input Sanitization**: Sanitize all inputs
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## 5. Output Encoding
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### 5.1 XSS Prevention
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- **HTML Encoding**: Encode HTML in responses
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- **JSON Encoding**: Proper JSON encoding
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- **Content Security Policy**: CSP headers
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### 5.2 Response Headers
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```
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Content-Security-Policy: default-src 'self'
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X-Content-Type-Options: nosniff
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X-Frame-Options: DENY
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X-XSS-Protection: 1; mode=block
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```
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## 6. HTTPS & TLS
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### 6.1 TLS Configuration
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- **TLS Version**: TLS 1.2 minimum
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- **Cipher Suites**: Strong cipher suites only
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- **Certificate**: Valid SSL certificate
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### 6.2 HTTPS Enforcement
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- **Redirect HTTP to HTTPS**: Force HTTPS
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- **HSTS**: HTTP Strict Transport Security
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## 7. Rate Limiting
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### 7.1 Rate Limit Strategy
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- **IP-Based**: Rate limit by IP address
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- **User-Based**: Rate limit by authenticated user
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- **Endpoint-Based**: Different limits per endpoint
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### 7.2 Rate Limit Configuration
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- **Default**: 100 requests/minute
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- **Authenticated**: 200 requests/minute
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- **Strict Endpoints**: Lower limits for sensitive endpoints
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## 8. Audit Logging
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### 8.1 Audit Events
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- **Authentication**: Login, logout, failed login
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- **Authorization**: Permission denied events
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- **Data Access**: Read operations (configurable)
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- **Data Modification**: Create, update, delete operations
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- **System Actions**: System configuration changes
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### 8.2 Audit Log Format
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```json
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{
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"id": "uuid",
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"user_id": "uuid",
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"action": "CREATE_SHARE",
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"resource_type": "share",
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"resource_id": "uuid",
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"method": "POST",
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"path": "/api/v1/shares",
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"ip_address": "192.168.1.100",
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"user_agent": "Mozilla/5.0...",
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"request_body": {...},
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"response_status": 201,
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"created_at": "2025-01-01T00:00:00Z"
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}
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```
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## 9. Error Handling
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### 9.1 Error Information
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- **Public Errors**: Safe error messages for users
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- **Private Errors**: Detailed errors in logs only
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- **No Stack Traces**: Never expose stack traces to users
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### 9.2 Error Logging
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- **Log All Errors**: Log all errors with context
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- **Sensitive Data**: Never log passwords, tokens, secrets
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- **Error Tracking**: Track error patterns
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## 10. File Upload Security
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### 10.1 Upload Restrictions
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- **File Types**: Whitelist allowed file types
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- **File Size**: Maximum file size limits
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- **File Validation**: Validate file contents
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### 10.2 Storage Security
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- **Secure Storage**: Store in secure location
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- **Access Control**: Restrict file access
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- **Virus Scanning**: Scan uploaded files (future)
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## 11. API Security
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### 11.1 API Authentication
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- **Bearer Tokens**: JWT in Authorization header
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- **Token Validation**: Validate on every request
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- **Token Expiration**: Enforce token expiration
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### 11.2 API Rate Limiting
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- **Per IP**: Rate limit by IP address
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- **Per User**: Rate limit by authenticated user
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- **Per Endpoint**: Different limits per endpoint
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## 12. Database Security
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### 12.1 Database Access
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- **Connection Security**: Encrypted connections
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- **Credentials**: Secure credential storage
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- **Least Privilege**: Database user with minimum privileges
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### 12.2 Data Encryption
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- **At Rest**: Database encryption (future)
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- **In Transit**: TLS for database connections
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- **Sensitive Data**: Encrypt sensitive fields
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## 13. System Security
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### 13.1 Command Execution
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- **Whitelist**: Only allow whitelisted commands
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- **Input Validation**: Validate command inputs
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- **Output Sanitization**: Sanitize command outputs
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### 13.2 File System Access
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- **Path Validation**: Validate all file paths
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- **Access Control**: Restrict file system access
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- **Symlink Protection**: Prevent symlink attacks
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## 14. Security Headers
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### 14.1 HTTP Security Headers
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```
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X-Content-Type-Options: nosniff
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X-Frame-Options: DENY
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X-XSS-Protection: 1; mode=block
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Content-Security-Policy: default-src 'self'
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Strict-Transport-Security: max-age=31536000
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Referrer-Policy: strict-origin-when-cross-origin
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```
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## 15. Security Monitoring
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### 15.1 Security Events
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- **Failed Logins**: Monitor failed login attempts
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- **Permission Denials**: Monitor permission denials
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- **Suspicious Activity**: Detect suspicious patterns
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### 15.2 Alerting
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- **Security Alerts**: Alert on security events
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- **Thresholds**: Alert thresholds for suspicious activity
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- **Notification**: Notify administrators
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