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Mitigation Strategies Analysis for go-martini/martini

Mitigation Strategy: Explicit Middleware Configuration (Martini-Specific)

Description:

  1. Avoid martini.Classic(): Do not use martini.Classic(). This is the core Martini-specific action.
  2. Create martini.Martini: Instantiate a martini.Martini object directly: m := martini.New(). This is the fundamental alternative to Classic().
  3. Add Middleware Selectively: Use m.Use() to add only the middleware you absolutely need. This is about how you use the Martini API. The choice of middleware is less Martini-specific. 
    m.Use(martini.Logger()) // Example: Using Martini's logger (if you must)
m.Use(myCustomRecoveryMiddleware) // Replacing a Martini default
// ... other middleware added via m.Use() ...
  4. Configure Martini Middleware: If using any built-in Martini middleware (like martini.Logger or martini.Static), configure them through their Martini-provided options. This is interacting directly with Martini's API.
  5. Custom Recovery (Replacing Martini's Default): Create a custom recovery middleware to replace martini.Recovery. This is a direct interaction with Martini's middleware system.

Threats Mitigated:

  • Information Disclosure (Severity: Medium to High): Directly addresses the potential for martini.Recovery to expose sensitive information.
  • Insecure Defaults (Severity: Variable): Avoids using potentially insecure default configurations of Martini's built-in middleware.
  • Directory Traversal (Severity: High): Addresses potential issues with martini.Static if you choose to use it (though a separate web server is strongly recommended). This is about how you configure martini.Static, a Martini component.

Impact:

  • Information Disclosure: Significantly reduces risk by replacing the default recovery handler.
  • Insecure Defaults: Eliminates the risk of using Martini's potentially insecure defaults.
  • Directory Traversal: Reduces risk if martini.Static is used and configured correctly (via Martini's API).

Currently Implemented:

  • Example: "The application uses martini.Martini and explicitly adds middleware via m.Use(). A custom recovery middleware replaces martini.Recovery (in middleware/recovery.go). martini.Static is not used."
  • Replace this with your project's details.

Missing Implementation:

  • Example: "The application still uses martini.Classic() in some parts of the codebase. These instances need to be refactored to use martini.Martini and explicit middleware."
  • Replace this with your project's details.

Mitigation Strategy: Strict Handler Signatures and Controlled Injection (Martini's Dependency Injection)

Description:

  1. Precise Types in Handlers: In your Martini handler functions, use the most specific Go types possible for parameters. This directly interacts with how Martini's dependency injection works. Avoid interface{}.
  2. Review m.Map() and m.MapTo(): Carefully examine all uses of Martini's m.Map() and m.MapTo() functions. These are the core of Martini's injection mechanism. Understand precisely what is being injected and where.
  3. Code Reviews (Martini Focus): During code reviews, pay extra attention to any code that uses m.Map(), m.MapTo(), or defines Martini handler function signatures. This is about scrutinizing Martini-specific code.
  4. Limit Injection Scope (Martini's m.Use()): If possible, use Martini's routing features (e.g., route groups) to limit the scope of injected dependencies. Inject dependencies at the most specific level needed, rather than globally using m.Map() at the top level. This leverages Martini's routing to control injection.

Threats Mitigated:

  • Type Confusion (Severity: Medium to High): Addresses potential issues arising from Martini's reflection-based injection and imprecise type usage.
  • Injection of Untrusted Objects (Severity: High): Mitigates the risk of malicious objects being injected via Martini's m.Map() or m.MapTo().

Impact:

  • Type Confusion: Reduces risk by making Martini's injection behavior more predictable.
  • Injection of Untrusted Objects: Reduces risk by ensuring careful control over what is injected via Martini's mechanisms.

Currently Implemented:

  • Example: "Handler functions generally use specific types. Code reviews include a checklist item specifically for reviewing Martini's m.Map() and m.MapTo() calls."
  • Replace this with your project's details.

Missing Implementation:

  • Example: "Some older handlers still use interface{} for parameters, bypassing Martini's type checking. A comprehensive review of all m.Map() and m.MapTo() calls is needed."
  • Replace this with your project's details.

Mitigation Strategy: Secure Routing (Martini's Route Definitions)

Description:

  1. Specific Route Patterns: When defining routes using Martini's m.Get(), m.Post(), m.Put(), m.Delete(), etc., use the most precise route patterns possible. Avoid overly broad patterns with excessive wildcards. This is about how you define routes within Martini.
  2. Avoid using Params directly: Instead of using Params directly, use a dedicated validation library.

Threats Mitigated:

  • Unexpected Handler Execution (Severity: Variable): Reduces the risk of unintended Martini handlers being executed due to overly broad route matching. This is specific to how Martini handles routes.
  • Broken Access Control (Severity: Medium to High): Precise routes can contribute to a more robust access control system, especially when combined with authentication and authorization middleware (though those are less Martini-specific).

Impact:

  • Unexpected Handler Execution: Improves the predictability of Martini's routing.
  • Broken Access Control: Contributes to a more secure application, though it's not a complete solution on its own.

Currently Implemented:

  • Example: "Routes are generally well-defined in routes.go, using specific patterns. A review was conducted to eliminate overly broad wildcards."
  • Replace this with your project's details.

Missing Implementation:

  • Example: "Some older routes still use broad patterns. A thorough review of all route definitions is needed to ensure they are as specific as possible, minimizing the use of wildcards."
  • Replace this with your project's details.