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SECURITY ANALYSIS

This document provides an analysis of the security aspects of the project. It outlines potential vulnerabilities, mitigation strategies, and best practices to ensure the safety and integrity of the system.

  1. Threat Assessment

    • Injection attacks (SQL, NoSQL, Command)
    • Cross-Site Scripting (XSS)
    • Broken Authentication (N/A)
    • Sensitive Data Exposure
    • Broken Access Control (N/A)
    • Security Misconfiguration
    • Check OWASP Top 10 for more details

  2. Security Requirements

    • For every security threat consider the following:
      • Requirements: What must be implemented
      • Motivation: Why it is important
      • Implementation: How it will be implemented
      • Testability: How it will be tested

  3. Security Requirements Prioritization

    • Critical: Must be implemented
    • Important: Should be implemented
    • Nice to have: Optional implementation

  4. Security Mitigations and Implementations (current state) The items below summarize concrete measures that are implemented in the current repository and CI configuration.

    • Input validation (server-side)

      • The service layer and API endpoints perform defensive checks on incoming DTOs (null checks, required fields, maximum lengths).
      • FluentValidation validators exist for create/update DTOs and are used by the endpoints to produce validation problem responses.
      • These checks mitigate injection and malformed input that could lead to downstream failures.

    • Explicit validation error handling

      • Endpoints convert FluentValidation results into standard validation problem responses (HTTP 400) with property-level error information.
      • This prevents leaking implementation details and provides consistent client feedback.

    • API design with typed results and status codes

      • Endpoints use typed results (TypedResults) and explicit response types (201/204/400/404/etc.) which reduces ambiguity and improves client error handling.

    • Dependency and package management in CI

      • CI contains a "Security Audit" step that runs dotnet list package --vulnerable --include-transitive to detect known vulnerable packages.
      • A NuGet cache is used in CI to speed restores while keeping restores reproducible.

    • Test coverage and diagnostics

      • Unit tests exercise the main service and endpoints to catch logic-level issues early.
      • Code coverage is collected in CI (Coverlet/Cobertura) which helps ensure tests cover important code paths and can reveal untested code that may contain vulnerabilities.

    • Minimal attack surface

      • The project is a minimal API with a small number of routes and a simple data model which reduces potential attack surface area.

    • Secure-by-default build settings for coverage/diagnostics

      • PDB generation for Release configuration is enabled so coverage and diagnostics map back to source line numbers (helps debugging security issues).

  5. Conclusion The repository implements server-side validation, consistent error responses, CI package auditing and test coverage.

  6. Future Work

    • Implement authentication and authorization mechanisms.
    • Enhance logging and monitoring capabilities.
    • Conduct regular security assessments and penetration testing.