Okay, let's create a design document for the Hapi.js framework, focusing on aspects relevant for threat modeling.

BUSINESS POSTURE

Hapi.js is a rich framework for building applications and services. It's designed to enable developers to focus on writing reusable application logic instead of spending time building infrastructure. Given its nature as a web framework, the primary business goals and priorities revolve around:

Reliability: Ensuring the framework itself is stable and dependable, minimizing crashes and unexpected behavior. Applications built with Hapi.js should be able to handle expected and unexpected loads gracefully.
Maintainability: The framework's codebase should be easy to understand, modify, and extend. This is crucial for long-term viability and community contributions.
Developer Productivity: Hapi.js aims to simplify web application development, allowing developers to build features quickly and efficiently.
Security: Providing built-in mechanisms and encouraging secure coding practices to protect applications built with the framework from common web vulnerabilities.
Scalability: Allowing applications built with it to scale to handle increasing traffic and data volumes.
Extensibility: Providing a robust plugin system to allow developers to easily add or customize functionality.

Most important business risks that need to be addressed:

Framework Vulnerabilities: Vulnerabilities within Hapi.js itself could expose all applications built using it to attacks. This is the most critical risk.
Supply Chain Attacks: Dependencies of Hapi.js could be compromised, leading to vulnerabilities in the framework.
Improper Use: Developers might misuse Hapi.js features or fail to implement proper security measures in their applications, leading to vulnerabilities.
Lack of Adoption: If the framework is perceived as insecure or difficult to use, it may lose adoption, impacting its long-term viability.
Outdated Dependencies: Failure to keep dependencies up-to-date could introduce known vulnerabilities.

SECURITY POSTURE

Existing security controls and accepted risks (based on the GitHub repository and general knowledge of web frameworks):

security control: Input Validation: Hapi.js uses Joi for input validation. This is a core feature and helps prevent many common vulnerabilities like injection attacks. (Described in documentation and implemented in the core framework).
security control: Plugin System: Hapi.js's plugin architecture allows for modular security features. Security-focused plugins can be added as needed. (Described in documentation and implemented in the core framework).
security control: Route Configuration: Security-related settings can be configured at the route level, allowing for granular control over authentication, authorization, and other security aspects. (Described in documentation and implemented in the core framework).
security control: Community Scrutiny: Being an open-source project, Hapi.js benefits from community scrutiny, which can help identify and address security issues. (Implicit in the open-source nature of the project).
security control: Regular Updates: The Hapi.js team releases updates to address bugs and security vulnerabilities. (Evidenced by the release history on GitHub).
security control: Documentation: Hapi.js provides extensive documentation, including security best practices. (Available on the official website and GitHub).
security control: Secure development lifecycle: Hapi project use GitHub features to manage project, including security features. (Described in GitHub project).
accepted risk: Third-Party Plugin Risks: While the plugin system is a strength, it also introduces the risk of vulnerabilities in third-party plugins. The core Hapi.js team may not have control over the security of these plugins.
accepted risk: Developer Error: Despite the framework's features, developers can still introduce vulnerabilities through improper implementation or configuration.
accepted risk: Zero-Day Vulnerabilities: Like any software, Hapi.js is susceptible to zero-day vulnerabilities that are unknown and unpatched.

Recommended security controls (high priority):

Implement a robust Security Development Lifecycle (SDL) process, including regular security audits, penetration testing, and threat modeling.
Establish a clear vulnerability disclosure program to encourage responsible reporting of security issues.
Provide more detailed security guidance and examples in the documentation, covering common web application vulnerabilities and how to mitigate them using Hapi.js.
Consider integrating automated security scanning tools into the CI/CD pipeline to detect vulnerabilities early in the development process.
Implement a Content Security Policy (CSP) by default or provide easy configuration options for developers to enable CSP.
Provide built-in protection against Cross-Site Request Forgery (CSRF) attacks.
Offer guidance and tools for secure session management, including the use of HttpOnly and Secure cookies.

Security Requirements:

Authentication:
- The framework should support various authentication mechanisms (e.g., API keys, OAuth, JWT).
- Authentication mechanisms should be configurable and extensible.
- Sensitive credentials should never be stored in plain text.
Authorization:
- The framework should provide mechanisms for controlling access to resources based on user roles and permissions.
- Authorization should be enforced consistently across all routes and resources.
- Support for both role-based access control (RBAC) and attribute-based access control (ABAC) is desirable.
Input Validation:
- All user input should be validated using a strict whitelist approach.
- Validation rules should be configurable and extensible.
- The framework should provide built-in validation for common data types.
- Input validation should occur as early as possible in the request processing pipeline.
Cryptography:
- The framework should use strong, industry-standard cryptographic algorithms for all security-sensitive operations.
- Cryptographic keys should be managed securely.
- The framework should provide utilities for common cryptographic tasks (e.g., hashing, encryption, signing).
Output Encoding:
- The framework should provide mechanisms for encoding output to prevent Cross-Site Scripting (XSS) vulnerabilities.
- Output encoding should be context-aware (e.g., HTML encoding, JavaScript encoding).

DESIGN

C4 CONTEXT

graph LR
    User["User (Web Browser/API Client)"] -- "HTTPS" --> HapiApp["Hapi.js Application"];
    HapiApp -- "Database Connection" --> Database["Database"];
    HapiApp -- "Various Protocols" --> ExternalServices["External Services (e.g., Payment Gateway, Email Service)"];
    HapiApp -- "Various Protocols" --> ThirdPartyLibraries["Third-party Libraries/APIs"];

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Elements Description:

Element:
- Name: User (Web Browser/API Client)
- Type: Person
- Description: Represents a user interacting with the Hapi.js application, either through a web browser or by directly consuming APIs.
- Responsibilities: Initiates requests to the application, provides input, and receives responses.
- Security controls: Uses HTTPS for secure communication. Relies on browser security features and potentially user authentication.
Element:
- Name: Hapi.js Application
- Type: Software System
- Description: The application built using the Hapi.js framework. This is the core system.
- Responsibilities: Handles incoming requests, processes business logic, interacts with databases and external services, and returns responses to the user.
- Security controls: Input validation, authentication, authorization, output encoding, session management, and other security features provided by Hapi.js and implemented by the application developers.
Element:
- Name: Database
- Type: Software System
- Description: The database used by the Hapi.js application to store data.
- Responsibilities: Stores and retrieves data as requested by the application.
- Security controls: Database access controls, encryption at rest, encryption in transit, auditing, and other database-specific security measures.
Element:
- Name: External Services
- Type: Software System
- Description: External services that the Hapi.js application interacts with, such as payment gateways, email services, or other APIs.
- Responsibilities: Provides specific functionalities as required by the application.
- Security controls: Relies on the security measures implemented by the external service providers. The Hapi.js application should use secure communication protocols and authenticate with these services appropriately.
Element:
- Name: Third-party Libraries/APIs
- Type: Software System
- Description: External libraries and APIs that are used by Hapi.js application.
- Responsibilities: Provides specific functionalities as required by the application.
- Security controls: Relies on the security measures implemented by the external libraries and APIs.

C4 CONTAINER

graph LR
    User["User (Web Browser/API Client)"] -- "HTTPS" --> WebServer["Web Server (e.g., Node.js)"];
    WebServer -- "HTTP" --> HapiApp["Hapi.js Application"];
    HapiApp -- "Database Connection" --> Database["Database"];
    HapiApp -- "Various Protocols" --> ExternalServices["External Services"];
    HapiApp -- "Various Protocols" --> ThirdPartyLibraries["Third-party Libraries/APIs"];
    subgraph HapiApp
        RequestHandlers["Request Handlers (Controllers)"] -- "Uses" --> BusinessLogic["Business Logic (Services)"];
        BusinessLogic -- "Uses" --> DataAccess["Data Access Layer"];
        BusinessLogic -- "Uses" --> Plugins["Plugins (e.g., Authentication, Validation)"];
    end

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Elements Description:

Element:
- Name: User (Web Browser/API Client)
- Type: Person
- Description: Same as in the Context diagram.
- Responsibilities: Same as in the Context diagram.
- Security controls: Same as in the Context diagram.
Element:
- Name: Web Server (e.g., Node.js)
- Type: Container
- Description: The underlying web server that hosts the Hapi.js application. Hapi.js runs on Node.js, so Node.js itself acts as the web server.
- Responsibilities: Receives incoming HTTP requests and forwards them to the Hapi.js application.
- Security controls: TLS configuration, potentially a reverse proxy or load balancer in front for additional security (e.g., WAF).
Element:
- Name: Hapi.js Application
- Type: Container
- Description: The application built using the Hapi.js framework.
- Responsibilities: Same as in the Context diagram.
- Security controls: Same as in the Context diagram.
Element:
- Name: Request Handlers (Controllers)
- Type: Component
- Description: Handles incoming requests, performs initial validation, and routes requests to the appropriate business logic.
- Responsibilities: Request parsing, input validation, routing, calling business logic.
- Security controls: Input validation (using Joi), authentication checks (potentially using plugins).
Element:
- Name: Business Logic (Services)
- Type: Component
- Description: Contains the core application logic and business rules.
- Responsibilities: Implements the application's functionality, interacts with the data access layer and plugins.
- Security controls: Authorization checks, data validation, business rule enforcement.
Element:
- Name: Data Access Layer
- Type: Component
- Description: Handles interactions with the database.
- Responsibilities: Data retrieval, storage, and manipulation.
- Security controls: Parameterized queries (to prevent SQL injection), data validation, access control.
Element:
- Name: Plugins (e.g., Authentication, Validation)
- Type: Component
- Description: Reusable modules that extend the functionality of the Hapi.js application.
- Responsibilities: Provides specific features like authentication, authorization, validation, logging, etc.
- Security controls: Implements specific security features (e.g., authentication, authorization, input validation).
Element:
- Name: Database
- Type: Container
- Description: Same as in the Context diagram.
- Responsibilities: Same as in the Context diagram.
- Security controls: Same as in the Context diagram.
Element:
- Name: External Services
- Type: Container
- Description: Same as in the Context diagram.
- Responsibilities: Same as in the Context diagram.
- Security controls: Same as in the Context diagram.
Element:
- Name: Third-party Libraries/APIs
- Type: Container
- Description: Same as in the Context diagram.
- Responsibilities: Same as in the Context diagram.
- Security controls: Same as in the Context diagram.

DEPLOYMENT

Hapi.js applications, being Node.js applications, can be deployed in various ways:

Bare Metal Servers: Directly on physical or virtual servers.
Virtual Machines (VMs): On cloud providers like AWS EC2, Google Compute Engine, Azure VMs.
Containers (Docker): Packaged as Docker containers and deployed on container orchestration platforms like Kubernetes, Docker Swarm, or cloud services like AWS ECS, Google Kubernetes Engine (GKE), Azure Kubernetes Service (AKS).
Platform as a Service (PaaS): On platforms like Heroku, AWS Elastic Beanstalk, Google App Engine.
Serverless Functions: Specific parts of the application can be deployed as serverless functions (e.g., AWS Lambda, Google Cloud Functions, Azure Functions), especially for event-driven or API-based workloads.

We'll describe a containerized deployment using Docker and Kubernetes, as it's a common and robust approach.

graph LR
    Developer["Developer"] -- "Code Commit" --> GitRepo["Git Repository (e.g., GitHub)"];
    GitRepo -- "Webhook Trigger" --> CI_CD["CI/CD Pipeline (e.g., Jenkins, GitHub Actions)"];
    CI_CD -- "Build & Test" --> DockerImage["Docker Image"];
    DockerImage -- "Push" --> ContainerRegistry["Container Registry (e.g., Docker Hub, ECR, GCR)"];
    ContainerRegistry -- "Pull" --> KubernetesCluster["Kubernetes Cluster"];
    KubernetesCluster -- "Exposes" --> LoadBalancer["Load Balancer"];
    LoadBalancer -- "HTTPS" --> User["User (Web Browser/API Client)"];

    subgraph KubernetesCluster
        HapiAppPod["Hapi.js App Pod(s)"] -- "Database Connection" --> DatabaseService["Database Service"];
        DatabaseService -- "" --> DatabasePod["Database Pod(s)"];
        HapiAppPod -- "Service Discovery" --> ExternalServices["External Services"];
    end

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Elements Description:

Element:
- Name: Developer
- Type: Person
- Description: The developer writing and committing code.
- Responsibilities: Writing code, committing changes, triggering builds.
- Security controls: Code reviews, secure coding practices.
Element:
- Name: Git Repository (e.g., GitHub)
- Type: Software System
- Description: Stores the application's source code.
- Responsibilities: Version control, code storage.
- Security controls: Access controls, branch protection rules, code scanning.
Element:
- Name: CI/CD Pipeline (e.g., Jenkins, GitHub Actions)
- Type: Software System
- Description: Automates the build, test, and deployment process.
- Responsibilities: Building Docker images, running tests, pushing images to a registry, deploying to Kubernetes.
- Security controls: Secure configuration, access controls, vulnerability scanning.
Element:
- Name: Docker Image
- Type: Artifact
- Description: The packaged Hapi.js application.
- Responsibilities: Contains the application code and its dependencies.
- Security controls: Image signing, vulnerability scanning.
Element:
- Name: Container Registry (e.g., Docker Hub, ECR, GCR)
- Type: Software System
- Description: Stores Docker images.
- Responsibilities: Image storage, access control.
- Security controls: Access controls, vulnerability scanning, image signing.
Element:
- Name: Kubernetes Cluster
- Type: Infrastructure
- Description: The container orchestration platform.
- Responsibilities: Managing the deployment and scaling of the application.
- Security controls: Network policies, RBAC, pod security policies, secrets management.
Element:
- Name: Hapi.js App Pod(s)
- Type: Container Instance
- Description: Running instances of the Hapi.js application container.
- Responsibilities: Handling requests, processing business logic.
- Security controls: Same as the Hapi.js Application container, plus Kubernetes-specific controls.
Element:
- Name: Database Service
- Type: Service
- Description: A Kubernetes service that provides a stable endpoint for accessing the database.
- Responsibilities: Routing traffic to the database pods.
- Security controls: Network policies.
Element:
- Name: Database Pod(s)
- Type: Container Instance
- Description: Running instances of the database container.
- Responsibilities: Storing and retrieving data.
- Security controls: Same as the Database container, plus Kubernetes-specific controls.
Element:
- Name: External Services
- Type: Software System
- Description: Same as in the Context diagram.
- Responsibilities: Same as in the Context diagram.
- Security controls: Same as in the Context diagram.
Element:
- Name: Load Balancer
- Type: Infrastructure
- Description: Distributes traffic across multiple instances of the Hapi.js application.
- Responsibilities: Load balancing, TLS termination.
- Security controls: TLS configuration, WAF integration.
Element:
- Name: User (Web Browser/API Client)
- Type: Person
- Description: Same as in the Context diagram.
- Responsibilities: Same as in the Context diagram.
- Security controls: Same as in the Context diagram.

BUILD

The build process for a Hapi.js application typically involves the following steps:

Code Checkout: The CI/CD pipeline checks out the source code from the Git repository.
Dependency Installation: Dependencies are installed using npm or yarn (e.g., npm install).
Linting: Code is linted using tools like ESLint to enforce coding standards and identify potential errors.
Testing: Unit tests, integration tests, and potentially end-to-end tests are executed.
Building (if necessary): If the application uses a transpiler like Babel or TypeScript, the code is compiled into JavaScript.
Packaging: The application and its dependencies are packaged into a Docker image.
Image Scanning: The Docker image is scanned for vulnerabilities using tools like Trivy, Clair, or Anchore.
Image Pushing: The Docker image is pushed to a container registry.

graph LR
    Developer["Developer"] -- "Code Commit" --> GitRepo["Git Repository (e.g., GitHub)"];
    GitRepo -- "Webhook Trigger" --> CI_CD["CI/CD Pipeline (e.g., Jenkins, GitHub Actions)"];
    CI_CD -- "Checkout Code" --> Code["Source Code"];
    Code -- "npm install" --> Dependencies["Dependencies (node_modules)"];
    Dependencies -- "Linting (ESLint)" --> LintedCode["Linted Code"];
    LintedCode -- "Testing (Jest, Mocha)" --> TestResults["Test Results"];
    TestResults -- "Build (Babel, TypeScript)" --> BuiltCode["Built Code (JavaScript)"];
    BuiltCode -- "Packaging (Docker)" --> DockerImage["Docker Image"];
    DockerImage -- "Image Scanning (Trivy, Clair)" --> ScannedImage["Scanned Docker Image"];
    ScannedImage -- "Push" --> ContainerRegistry["Container Registry (e.g., Docker Hub, ECR, GCR)"];

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Security Controls in the Build Process:

Dependency Management: Using npm or yarn with package-lock.json or yarn.lock to ensure consistent and reproducible builds. Regularly auditing dependencies for known vulnerabilities using tools like npm audit or yarn audit.
Linting: Enforcing coding standards and identifying potential security issues using linters.
Static Application Security Testing (SAST): Integrating SAST tools into the CI/CD pipeline to scan the code for vulnerabilities.
Software Composition Analysis (SCA): Using tools to identify and manage open-source dependencies and their associated vulnerabilities.
Image Scanning: Scanning Docker images for vulnerabilities before pushing them to a registry.
Secure Build Environment: Ensuring the CI/CD pipeline itself is secure, with appropriate access controls and secrets management.

RISK ASSESSMENT

Critical Business Processes:
- Serving web requests and API calls reliably.
- Protecting user data and ensuring privacy.
- Maintaining the integrity of application data and functionality.
- Ensuring the availability of the application.
Data Sensitivity:
- User Data (PII): Names, email addresses, passwords (hashed), addresses, phone numbers, etc. (High Sensitivity)
- Financial Data: Payment card information, transaction details (if applicable). (High Sensitivity)
- Session Data: User session tokens, authentication state. (High Sensitivity)
- Application Data: Data specific to the application's functionality (variable sensitivity depending on the application).
- Configuration Data: API keys, database credentials, other secrets. (High Sensitivity)
- Logs: Application logs may contain sensitive information if not properly configured. (Medium to High Sensitivity)

QUESTIONS & ASSUMPTIONS

Questions:
- What specific types of applications are typically built with Hapi.js within the organization using this design document? (This helps tailor the threat model to specific use cases.)
- What are the existing security policies and standards within the organization?
- What is the organization's risk tolerance?
- Are there any specific regulatory compliance requirements (e.g., GDPR, HIPAA, PCI DSS)?
- What is the expected traffic volume and scalability requirements for applications built with Hapi.js?
- What level of support and maintenance is provided for the Hapi.js framework itself?
- What is the process for handling security vulnerabilities discovered in Hapi.js or its dependencies?
Assumptions:
- BUSINESS POSTURE: The organization values security and is willing to invest in security measures. Developers using Hapi.js have a basic understanding of web security principles.
- SECURITY POSTURE: The organization has a basic security infrastructure in place (e.g., firewalls, intrusion detection systems). There is some level of security awareness among developers.
- DESIGN: The Hapi.js application will be deployed in a modern environment (e.g., cloud-based, containerized). The application will interact with a database and potentially other external services. The application will be built using a CI/CD pipeline.

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sec-design.md

sec-design.md

BUSINESS POSTURE

SECURITY POSTURE

DESIGN

C4 CONTEXT

C4 CONTAINER

DEPLOYMENT

BUILD

RISK ASSESSMENT

QUESTIONS & ASSUMPTIONS

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BUSINESS POSTURE

SECURITY POSTURE

DESIGN

C4 CONTEXT

C4 CONTAINER

DEPLOYMENT

BUILD

RISK ASSESSMENT

QUESTIONS & ASSUMPTIONS