Skip to content

Latest commit

 

History

History
301 lines (252 loc) · 19.1 KB

sec-design.md

File metadata and controls

301 lines (252 loc) · 19.1 KB

BUSINESS POSTURE

This project, represented by the GitHub repository seanmonstar/warp, provides a web server framework written in Rust. The primary business goal for adopting such a framework is to efficiently and reliably build web applications and services.

Business Priorities and Goals:

  • Rapid development of web applications: warp aims to be easy to use and composable, facilitating faster development cycles.
  • High performance and efficiency: Rust is known for its performance, and warp leverages this to provide fast and resource-efficient web services.
  • Reliability and stability: Rust's memory safety and strong type system contribute to building robust and stable applications.
  • Flexibility and customization: warp is designed to be composable, allowing developers to tailor it to specific application needs.
  • Modern web standards support: A modern web framework should support current web protocols and standards.

Business Risks:

  • Security vulnerabilities in the framework: Like any software, warp could contain vulnerabilities that could be exploited in applications built with it.
  • Insecure application development: Developers using warp might introduce security flaws in their applications if they are not security-conscious or lack sufficient training.
  • Dependency vulnerabilities: warp relies on other Rust crates (libraries), and vulnerabilities in these dependencies could impact applications using warp.
  • Operational risks: Misconfiguration or improper deployment of warp-based applications can lead to security and availability issues.
  • Performance bottlenecks: While warp is designed for performance, inefficient application code or resource constraints can still lead to performance problems.

SECURITY POSTURE

Existing Security Controls:

  • security control: Memory safety provided by Rust language. Rust's memory management system prevents many common memory-related vulnerabilities like buffer overflows and use-after-free errors. Implemented at the language level.
  • security control: Type safety provided by Rust language. Rust's strong type system helps catch type-related errors at compile time, reducing the risk of certain types of vulnerabilities. Implemented at the language level.
  • security control: HTTPS support. warp supports TLS/SSL for secure communication over HTTPS. Described in documentation and examples.
  • security control: Input handling and routing. warp provides mechanisms for defining routes and handling incoming requests, allowing developers to implement input validation and sanitization. Described in documentation and examples.
  • accepted risk: Security of applications built using warp is primarily the responsibility of the application developers. The framework provides tools, but secure application design and implementation are crucial.
  • accepted risk: Dependency vulnerabilities are managed through crate updates, but timely updates and vulnerability scanning are the responsibility of the application developers.

Recommended Security Controls:

  • security control: Implement automated security scanning (SAST/DAST) for applications built with warp as part of the CI/CD pipeline.
  • security control: Conduct regular security code reviews of applications built with warp.
  • security control: Implement dependency vulnerability scanning and management for applications using warp.
  • security control: Provide security guidelines and best practices documentation specifically for developing secure applications with warp.
  • security control: Encourage and facilitate community security audits of the warp framework itself.

Security Requirements:

  • Authentication: Applications built with warp will likely need to implement various authentication mechanisms to verify user identities. warp should provide flexibility to integrate different authentication strategies (e.g., session-based, token-based, OAuth).
  • Authorization: Applications need to control access to resources based on user roles and permissions. warp should provide mechanisms to implement authorization logic, potentially through middleware or route guards.
  • Input Validation: All external inputs to warp applications must be validated to prevent injection attacks (e.g., SQL injection, cross-site scripting). warp should facilitate easy input validation and sanitization.
  • Cryptography: Applications might need to use cryptography for data encryption, secure communication, and secure storage. warp should not hinder the use of cryptographic libraries and should ideally provide utilities for common cryptographic tasks if applicable to a web framework.
  • Secure Defaults: warp should strive to have secure defaults in its configuration and usage patterns to minimize the risk of misconfiguration leading to vulnerabilities.
  • Logging and Monitoring: Applications should log security-relevant events for auditing and monitoring purposes. warp should integrate well with logging frameworks and provide mechanisms to log request details and security events.
  • Error Handling: Error handling should be implemented securely to avoid leaking sensitive information in error messages. warp should encourage secure error handling practices.
  • Protection against common web attacks: warp and applications built on it should be protected against common web attacks such as Cross-Site Scripting (XSS), Cross-Site Request Forgery (CSRF), and others.

DESIGN

C4 CONTEXT

graph LR
    subgraph "Organization Context"
        U1("Web User")
        S1("warp-based Application")
        S2("Database System")
        S3("External API")
    end
    U1 --> S1: HTTP Requests
    S1 --> S2: Database Queries
    S1 --> S3: API Calls
Loading

Context Diagram Elements:

  • Name: Web User

    • Type: Person
    • Description: End-users who interact with the web application through a web browser or other HTTP client.
    • Responsibilities: Accessing and using the web application's features and functionalities.
    • Security controls: Browser security controls, user device security.

  • Name: warp-based Application

    • Type: Software System
    • Description: The web application built using the warp framework. This is the system being designed and analyzed.
    • Responsibilities: Handling user requests, processing business logic, interacting with databases and external APIs, and providing responses to users.
    • Security controls: Authentication, authorization, input validation, session management, secure logging, error handling, HTTPS.

  • Name: Database System

    • Type: Software System
    • Description: A database system used by the warp-based application to store and retrieve data. Could be relational (e.g., PostgreSQL, MySQL) or NoSQL (e.g., MongoDB, Redis).
    • Responsibilities: Storing application data, providing data persistence, and ensuring data integrity and availability.
    • Security controls: Database access controls, encryption at rest, encryption in transit, database auditing.

  • Name: External API

    • Type: Software System
    • Description: External services or APIs that the warp-based application interacts with to retrieve data or perform actions.
    • Responsibilities: Providing external data or services to the application.
    • Security controls: API authentication and authorization, secure API communication (HTTPS), rate limiting.

C4 CONTAINER

graph LR
    subgraph "warp-based Application"
        C1("Web Server")
        C2("Application Logic")
        C3("Data Access Layer")
    end
    C1 --> C2: Function Calls
    C2 --> C3: Function Calls
    C1 -- HTTP --> U1("Web User")
    C3 -- Database Protocol --> S2("Database System")
    C2 -- API Calls --> S3("External API")
Loading

Container Diagram Elements:

  • Name: Web Server

    • Type: Container (Logical Component)
    • Description: The core warp framework component responsible for handling HTTP requests, routing, and managing connections. This is the entry point for all web requests.
    • Responsibilities: HTTP request handling, routing requests to application logic, managing HTTP connections, implementing web server security features (e.g., TLS).
    • Security controls: HTTPS configuration, request parsing and validation, rate limiting, web server hardening.

  • Name: Application Logic

    • Type: Container (Logical Component)
    • Description: Contains the business logic of the web application. This is where the core application functionality is implemented, handling user requests and orchestrating data processing.
    • Responsibilities: Implementing business rules, processing user requests, coordinating data access, and interacting with external services.
    • Security controls: Authorization logic, input validation, secure coding practices, output encoding, session management.

  • Name: Data Access Layer

    • Type: Container (Logical Component)
    • Description: Responsible for interacting with the database system. This component abstracts database interactions from the application logic, providing data access and persistence.
    • Responsibilities: Database query construction, data mapping, database connection management, data validation, and handling database interactions.
    • Security controls: Parameterized queries or ORM usage to prevent SQL injection, database access control, data sanitization before database storage.

DEPLOYMENT

Deployment Solution: Cloud-based Containerized Deployment (using Docker and Kubernetes on AWS EKS)

graph LR
    subgraph "AWS EKS Cluster"
        subgraph "Worker Node 1"
            D1("Container: warp-app-container")
        end
        subgraph "Worker Node 2"
            D2("Container: warp-app-container")
        end
        D3("Load Balancer")
    end
    Internet -- HTTPS --> D3
    D3 -- HTTP --> D1
    D3 -- HTTP --> D2
    D1 -- Database Protocol --> RDS("AWS RDS (Database)")
    D2 -- Database Protocol --> RDS
Loading

Deployment Diagram Elements:

  • Name: Container: warp-app-container

    • Type: Container Instance
    • Description: Docker container instance running the warp-based application. Multiple instances are deployed for scalability and availability.
    • Responsibilities: Running the warp application, handling requests, and processing application logic.
    • Security controls: Container image security scanning, resource limits, network policies, application-level security controls.

  • Name: Load Balancer

    • Type: Infrastructure Component
    • Description: AWS Elastic Load Balancer (ELB) distributing incoming HTTPS traffic across multiple container instances.
    • Responsibilities: Load balancing, SSL termination, health checks, and routing traffic to healthy container instances.
    • Security controls: SSL/TLS configuration, security groups, access logging, DDoS protection.

  • Name: AWS RDS (Database)

    • Type: Managed Database Service
    • Description: AWS Relational Database Service (RDS) providing a managed database instance for the application.
    • Responsibilities: Data storage, data persistence, database management, and providing database access to the application containers.
    • Security controls: Database access controls, encryption at rest, encryption in transit, database backups, security patching.

  • Name: AWS EKS Cluster

    • Type: Infrastructure Component
    • Description: AWS Elastic Kubernetes Service (EKS) cluster providing the container orchestration platform.
    • Responsibilities: Container orchestration, scaling, deployment management, and resource management.
    • Security controls: Kubernetes RBAC, network policies, pod security policies, cluster security hardening.

  • Name: Worker Node 1 & Worker Node 2

    • Type: Infrastructure Component
    • Description: Virtual machines in the EKS cluster that run the application containers.
    • Responsibilities: Providing compute resources for running containers.
    • Security controls: Operating system hardening, security patching, access controls, monitoring.

BUILD

graph LR
    subgraph "Developer Workstation"
        DEV("Developer")
    end
    subgraph "CI/CD Pipeline (GitHub Actions)"
        BC("Build Container")
        SAST("SAST Scanner")
        LINT("Linter")
        TEST("Automated Tests")
        IMG_BUILD("Container Image Build")
        IMG_SCAN("Container Image Scanner")
        REG("Container Registry")
    end
    DEV -- Code Commit --> BC
    BC --> SAST: Source Code
    BC --> LINT: Source Code
    BC --> TEST: Source Code
    SAST --> BC: Results
    LINT --> BC: Results
    TEST --> BC: Results
    BC --> IMG_BUILD: Build Context
    IMG_BUILD --> IMG_SCAN: Container Image
    IMG_SCAN --> REG: Container Image
    BC -- Build Artifacts --> REG
Loading

Build Process Description:

  1. Developer (DEV) writes code and commits it to a version control system (e.g., GitHub).
  2. Code commit triggers the CI/CD pipeline, which starts a Build Container (BC) in GitHub Actions.
  3. Build Container (BC) performs the following steps:
    • Static Application Security Testing (SAST): SAST Scanner analyzes the source code for potential security vulnerabilities.
    • Linting: Linter checks the code for code quality and style issues.
    • Automated Tests: Automated tests (unit, integration, etc.) are executed to ensure code functionality and catch regressions.
    • Container Image Build (IMG_BUILD): A Docker container image for the application is built.
    • Container Image Scanning (IMG_SCAN): The container image is scanned for vulnerabilities using a container image scanner.
  4. Build artifacts (e.g., binaries, container images) are pushed to a Container Registry (REG).
  5. Results from SAST, Linter, and Tests are collected and reported.

Build Diagram Elements:

  • Name: Developer

    • Type: Person
    • Description: Software developer writing and committing code for the warp-based application.
    • Responsibilities: Writing secure and functional code, performing local testing, and committing code changes.
    • Security controls: Secure coding practices, code review, local development environment security.

  • Name: Build Container

    • Type: Automated Process
    • Description: Containerized build environment in CI/CD pipeline (GitHub Actions) that executes build steps.
    • Responsibilities: Compiling code, running tests, performing security scans, and building artifacts.
    • Security controls: Secure build environment, access controls, build process isolation.

  • Name: SAST Scanner

    • Type: Security Tool
    • Description: Static Application Security Testing tool that analyzes source code for vulnerabilities.
    • Responsibilities: Identifying potential security flaws in the code.
    • Security controls: Regularly updated vulnerability rules, configuration for relevant security checks.

  • Name: Linter

    • Type: Code Quality Tool
    • Description: Linter tool that checks code for style and quality issues.
    • Responsibilities: Enforcing code quality standards and identifying potential code defects.
    • Security controls: Configuration for security-related linting rules.

  • Name: Automated Tests

    • Type: Automated Process
    • Description: Automated test suite (unit, integration, etc.) that verifies code functionality.
    • Responsibilities: Ensuring code functionality and catching regressions.
    • Security controls: Test environment security, secure test data management.

  • Name: Container Image Build

    • Type: Automated Process
    • Description: Process of building a Docker container image for the application.
    • Responsibilities: Creating a runnable container image of the application.
    • Security controls: Base image selection, minimal image layers, avoiding secrets in images.

  • Name: Container Image Scanner

    • Type: Security Tool
    • Description: Tool that scans container images for known vulnerabilities in base images and dependencies.
    • Responsibilities: Identifying vulnerabilities in container images before deployment.
    • Security controls: Regularly updated vulnerability database, integration with container registry.

  • Name: Container Registry

    • Type: Artifact Repository
    • Description: Repository for storing and managing container images (e.g., Docker Hub, AWS ECR).
    • Responsibilities: Storing and distributing container images.
    • Security controls: Access controls, image signing, vulnerability scanning integration, registry security hardening.

RISK ASSESSMENT

Critical Business Processes:

  • Providing web application functionality to users. This includes all features and services offered by the warp-based application. Disruption or compromise of this process would directly impact users and business operations.
  • Data storage and retrieval. The application relies on the database system to store and retrieve critical data. Data loss, corruption, or unauthorized access would have significant business impact.
  • External API integrations. If the application relies on external APIs for core functionality, the availability and security of these integrations are critical.

Data Sensitivity:

  • The sensitivity of data depends on the specific application built with warp. However, common types of data in web applications and their potential sensitivity levels include:
    • User credentials (usernames, passwords, API keys): Confidential. Requires strong protection to prevent unauthorized access.
    • Personal Identifiable Information (PII) (names, addresses, emails, etc.): Confidential or Private. Requires protection to comply with privacy regulations and maintain user trust.
    • Application data (business-specific data): Sensitivity varies depending on the nature of the business and data. Could be Public, Internal, Confidential, or Restricted.
    • Session data: Potentially Confidential. May contain session identifiers or temporary user data that needs to be protected during the session.
    • Logs and audit trails: Internal. Important for security monitoring and incident response, needs to be protected from unauthorized access and tampering.

QUESTIONS & ASSUMPTIONS

Questions:

  • What type of application will be built using warp? (e.g., e-commerce, API service, content management system). This will help to refine the business posture and security requirements.
  • What are the specific data types and sensitivity levels that the application will handle? This is crucial for data protection and risk assessment.
  • What are the compliance requirements for the application (e.g., GDPR, HIPAA, PCI DSS)? Compliance requirements will dictate specific security controls.
  • What is the organization's risk appetite? This will influence the prioritization of security controls and accepted risks.
  • What existing security infrastructure and tools are already in place? Leveraging existing tools and infrastructure can improve efficiency and reduce costs.
  • What is the expected scale and performance requirements for the application? This will impact deployment architecture and security considerations related to performance and availability.

Assumptions:

  • The organization adopting warp is building a web application or service that requires performance, reliability, and security.
  • The development team has some familiarity with Rust and web application development principles.
  • Security is a relevant concern for the application being built, and the organization is willing to invest in security controls.
  • The deployment environment is assumed to be a cloud-based infrastructure, but other deployment models are possible.
  • The build process includes automated CI/CD pipelines, but manual build processes are also possible in simpler scenarios.