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BUSINESS POSTURE

This project is a Javascript charting library, designed to be integrated into web applications to provide data visualization capabilities.

Business priorities and goals:

  • Provide a reusable, easy-to-integrate charting library for web developers.
  • Offer a range of chart types and customization options to meet diverse visualization needs.
  • Ensure the library is performant and does not negatively impact the user experience of applications using it.
  • Maintain and update the library to address bugs, add features, and ensure compatibility with modern web browsers and frameworks.
  • Encourage community contribution and adoption to improve and expand the library's capabilities.

Most important business risks:

  • Low adoption rate due to competition from other charting libraries or lack of perceived value.
  • Bugs or performance issues that lead to negative feedback and discourage adoption.
  • Security vulnerabilities in the library that could be exploited in applications using it, damaging reputation and trust.
  • Lack of maintenance and updates, leading to obsolescence and reduced usability over time.

SECURITY POSTURE

Existing security controls:

  • security control: Code hosted on GitHub, leveraging GitHub's infrastructure security.
  • security control: Open-source project, allowing community review and potential vulnerability identification.

Accepted risks:

  • accepted risk: Reliance on community contributions for security vulnerability identification and patching.
  • accepted risk: Security vulnerabilities in dependencies if not regularly updated and scanned.
  • accepted risk: Potential for vulnerabilities in the library code itself, requiring ongoing security awareness and code review.

Recommended security controls:

  • security control: Implement a Secure Software Development Lifecycle (SSDLC) including security requirements, threat modeling, secure coding practices, and security testing.
  • security control: Integrate Static Application Security Testing (SAST) tools into the development and build process to automatically identify potential code vulnerabilities.
  • security control: Implement Dependency Scanning to automatically identify and alert on known vulnerabilities in third-party libraries used by the project.
  • security control: Establish a process for security vulnerability reporting and response, including a security policy and contact information.
  • security control: Conduct regular code reviews with a focus on security best practices.

Security requirements:

  • Authentication: Not applicable for a client-side charting library. Authentication is the responsibility of the applications that integrate this library.
  • Authorization: Not applicable for a client-side charting library. Authorization is the responsibility of the applications that integrate this library.
  • Input validation:
    • security requirement: The library must validate all input data to prevent unexpected behavior, errors, or potential vulnerabilities when processing data for chart rendering.
    • security requirement: Input validation should be implemented to handle various data types, formats, and potential edge cases, ensuring robustness and preventing injection attacks if data is dynamically generated.
  • Cryptography: Not directly applicable for the core charting functionality of the library. Cryptographic operations are expected to be handled by the applications that integrate this library if needed for data security.

DESIGN

C4 CONTEXT

flowchart LR
    subgraph Web Applications
    A["Web Application"]
    end
    B["End User"]
    C["pnchart Library"]
    A --> C
    B --> A
    C -->> B : Renders Charts
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Context Diagram elements:

  • Name: Web Application
    • Type: Software System
    • Description: Web applications that integrate the pnchart library to display charts and visualizations to end users.
    • Responsibilities:
      • Integrate the pnchart library into their codebase.
      • Provide data to the pnchart library for chart rendering.
      • Handle user interactions with the charts.
      • Implement application-level security controls, including authentication and authorization.
    • Security controls:
      • security control: Input validation of data before passing it to the pnchart library.
      • security control: Implementation of application-level authentication and authorization.
      • security control: Secure deployment and hosting of the web application.
  • Name: End User
    • Type: Person
    • Description: Users who interact with web applications and view charts rendered by the pnchart library in their web browsers.
    • Responsibilities:
      • Access web applications through web browsers.
      • View and interact with charts displayed in web applications.
    • Security controls:
      • security control: Use of modern and secure web browsers.
      • security control: Awareness of potential risks when interacting with web applications.
  • Name: pnchart Library
    • Type: Software System
    • Description: A Javascript library that takes data as input and renders various types of charts in web browsers.
    • Responsibilities:
      • Provide chart rendering functionality in web browsers.
      • Accept data input from web applications.
      • Render charts based on provided data and configuration.
      • Ensure client-side performance and compatibility across browsers.
    • Security controls:
      • security control: Input validation of data received from web applications.
      • security control: Adherence to secure coding practices during development.
      • security control: Security testing and vulnerability scanning of the library code.

C4 CONTAINER

flowchart LR
    subgraph Web Browser
    A["Javascript Engine"]
    B["DOM"]
    C["pnchart Library"]
    D["Web Application Code"]
    D --> C
    C -->> A : Executes
    C -->> B : Manipulates
    end
    E["Web Application"]
    E -->> Web Browser : Delivers HTML, CSS, Javascript
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Container Diagram elements:

  • Name: Javascript Engine
    • Type: Execution Environment
    • Description: The Javascript engine within a web browser that executes the pnchart library code.
    • Responsibilities:
      • Execute Javascript code, including the pnchart library.
      • Provide runtime environment for the library.
    • Security controls:
      • security control: Browser security features (e.g., sandboxing, Content Security Policy).
      • security control: Regular browser updates to patch security vulnerabilities.
  • Name: DOM (Document Object Model)
    • Type: Data Structure
    • Description: The Document Object Model provided by the web browser, which the pnchart library manipulates to render charts visually.
    • Responsibilities:
      • Represent the structure of the web page.
      • Allow Javascript code to interact with and modify page content.
    • Security controls:
      • security control: Browser security policies to prevent malicious DOM manipulation.
  • Name: pnchart Library
    • Type: Library
    • Description: The Javascript charting library code itself, consisting of Javascript files.
    • Responsibilities:
      • Implement chart rendering logic.
      • Process input data and generate chart visualizations.
      • Interact with the DOM to display charts.
    • Security controls:
      • security control: Input validation within the library code.
      • security control: Secure coding practices to prevent vulnerabilities.
      • security control: Regular security audits and vulnerability scanning.
  • Name: Web Application Code
    • Type: Application Code
    • Description: The Javascript code of the web application that integrates and uses the pnchart library.
    • Responsibilities:
      • Load and initialize the pnchart library.
      • Provide data to the library for chart rendering.
      • Handle user interactions and application logic.
    • Security controls:
      • security control: Secure coding practices in application code.
      • security control: Input validation before passing data to the pnchart library.
  • Name: Web Application
    • Type: Software System
    • Description: The overall web application, including server-side and client-side components, that delivers the web application code to the browser.
    • Responsibilities:
      • Serve web application files (HTML, CSS, Javascript).
      • Potentially provide data to the client-side application (though not directly interacting with pnchart library).
    • Security controls:
      • security control: Secure web server configuration.
      • security control: HTTPS for secure communication.
      • security control: Server-side security controls (authentication, authorization, etc.).

DEPLOYMENT

Deployment Diagram:

flowchart LR
    subgraph End User Environment
    A["End User Browser"]
    end
    subgraph CDN (Content Delivery Network)
    B["CDN Node 1"]
    C["CDN Node N"]
    end
    subgraph Origin Server
    D["Web Server"]
    E["pnchart Library Files"]
    D --> E : Serves
    B --> E : Fetches
    C --> E : Fetches
    A --> B : Fetches Library
    A --> C : Fetches Library
    A --> D : Fetches Application
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Deployment elements:

  • Name: End User Browser
    • Type: Environment
    • Description: The web browser running on the end user's device where the web application and pnchart library execute.
    • Responsibilities:
      • Execute Javascript code.
      • Render web pages and charts.
      • Provide user interface for interaction.
    • Security controls:
      • security control: Browser security features.
      • security control: User awareness of browser security best practices.
  • Name: CDN (Content Delivery Network)
    • Type: Infrastructure
    • Description: A Content Delivery Network used to host and distribute the pnchart library files for faster and more reliable delivery to end users globally.
    • Responsibilities:
      • Host static files (pnchart library Javascript files).
      • Distribute files to geographically distributed nodes.
      • Provide fast content delivery to end users.
    • Security controls:
      • security control: CDN provider's infrastructure security.
      • security control: HTTPS for secure delivery of library files.
      • security control: Access controls to manage CDN content.
  • Name: CDN Node 1, CDN Node N
    • Type: Server
    • Description: Individual servers within the CDN network that cache and serve the pnchart library files.
    • Responsibilities:
      • Cache and serve library files to nearby end users.
    • Security controls:
      • security control: CDN provider's server security measures.
  • Name: Origin Server
    • Type: Infrastructure
    • Description: The origin server hosting the original pnchart library files and potentially the web application itself.
    • Responsibilities:
      • Store the authoritative copy of the pnchart library files.
      • Serve library files to the CDN for distribution.
      • Potentially host the web application files.
    • Security controls:
      • security control: Server operating system and application security hardening.
      • security control: Access controls to protect library files.
      • security control: Regular security patching and updates.
  • Name: Web Server
    • Type: Application
    • Description: The web server software running on the origin server, responsible for serving files.
    • Responsibilities:
      • Serve static files (pnchart library files, web application files).
      • Handle HTTP requests.
    • Security controls:
      • security control: Web server configuration security hardening.
      • security control: HTTPS configuration.
      • security control: Access logs and monitoring.
  • Name: pnchart Library Files
    • Type: Data
    • Description: The static Javascript files that constitute the pnchart library.
    • Responsibilities:
      • Contain the library's code and assets.
    • Security controls:
      • security control: Integrity checks to ensure files are not tampered with.
      • security control: Access controls to restrict modification of files on the origin server.

BUILD

Build Process Diagram:

flowchart LR
    A["Developer"] --> B["Code Repository (GitHub)"] : Code Commit
    B --> C["CI/CD Pipeline (GitHub Actions)"] : Triggered on Commit
    C --> D["Build Environment"] : Executes Build Steps
    D --> E["Build Artifacts (Javascript Files)"] : Outputs
    E --> F["Package Registry (npm/CDN)"] : Publish
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Build Process Description:

  • Developer: Developers write and modify the pnchart library code.
  • Code Repository (GitHub): Source code is stored and version controlled in a GitHub repository.
  • CI/CD Pipeline (GitHub Actions): A CI/CD pipeline, potentially using GitHub Actions, is triggered on code commits to the repository.
  • Build Environment: A controlled environment where the build process executes. This could be a containerized environment or a dedicated build server.
  • Build Artifacts (Javascript Files): The output of the build process, which are the distributable Javascript files of the pnchart library.
  • Package Registry (npm/CDN): The build artifacts are published to a package registry like npm for distribution and potentially to a CDN for optimized delivery.

Build Process Security Controls:

  • security control: Code Repository Access Control: Restrict access to the code repository to authorized developers.
  • security control: Branch Protection: Implement branch protection rules to require code reviews and prevent direct commits to main branches.
  • security control: CI/CD Pipeline Security: Secure the CI/CD pipeline infrastructure and configurations.
  • security control: Build Environment Isolation: Use isolated and ephemeral build environments to prevent contamination and ensure build reproducibility.
  • security control: Dependency Management: Use dependency management tools to track and manage third-party dependencies.
  • security control: Dependency Scanning: Integrate dependency scanning tools into the CI/CD pipeline to identify vulnerable dependencies.
  • security control: Static Application Security Testing (SAST): Integrate SAST tools into the CI/CD pipeline to automatically scan code for vulnerabilities.
  • security control: Code Signing: Sign build artifacts to ensure integrity and authenticity.
  • security control: Artifact Repository Security: Secure the package registry or artifact repository where build artifacts are stored and distributed.

RISK ASSESSMENT

Critical business processes we are trying to protect:

  • Maintaining the integrity and availability of the pnchart library.
  • Ensuring the library is free from vulnerabilities that could be exploited by applications using it.
  • Protecting the reputation and trust associated with the pnchart library.
  • Ensuring the continuous development and improvement of the library.

Data we are trying to protect and their sensitivity:

  • Source code of the pnchart library: Sensitive as it represents the intellectual property and contains the logic of the library. Exposure could lead to unauthorized modifications or cloning.
  • Build artifacts (Javascript files): Sensitive as compromised artifacts could be distributed to users, leading to potential security issues in applications using the library.
  • Development and build infrastructure: Sensitive as compromise could lead to unauthorized code changes or malicious artifact injection.

QUESTIONS & ASSUMPTIONS

Questions:

  • What is the intended scope of usage for this library? Is it for general public use, or specific internal projects?
  • Are there any specific compliance requirements that the library needs to adhere to (e.g., accessibility standards, data privacy regulations)?
  • What is the process for reporting and handling security vulnerabilities in the library?
  • Is there a dedicated team or individual responsible for the security of the pnchart library project?
  • What is the expected lifespan and maintenance plan for the library?

Assumptions:

  • BUSINESS POSTURE: The primary goal is to provide a useful and reliable open-source charting library for web developers. Community adoption and contribution are important for the project's success.
  • SECURITY POSTURE: Security is considered important, but the primary responsibility for application-level security lies with the developers integrating the library. Basic security controls are in place, but further enhancements are recommended.
  • DESIGN: The library is primarily a client-side Javascript component, designed to be deployed via CDN or package registries and used within web browsers. The build process is assumed to be based on standard Javascript development tools and can be enhanced with security checks.