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Mitigation Strategies Analysis for cypress-io/cypress

Mitigation Strategy: Environment-Controlled Authentication Bypass (Cypress Code)

  • Description:

    1. Within your Cypress test files, identify all instances of cy.request() used for authentication/authorization bypass.

    2. Ensure you have environment variables defined in your Cypress configuration (e.g., cypress.config.js or environment-specific files) – for example, BYPASS_AUTH (boolean) and ENVIRONMENT (string).

    3. Wrap the bypass logic within a conditional block inside your Cypress test code:

      if (Cypress.env('BYPASS_AUTH') === true && Cypress.env('ENVIRONMENT') === 'test') {
  // ... cy.request() calls for authentication bypass ...
} else {
  // ... Standard login flow through the UI using cy.get(), cy.type(), etc. ...
}

    4. For any test that requires the standard login flow, ensure it's not within the conditional block, or add an explicit else condition to handle the UI-based login.

    5. Document within the test file comments the purpose and conditions of the bypass.

  • Threats Mitigated:

    • Authentication Bypass Backdoor (Severity: Critical): Prevents bypass code from executing in unintended environments (staging/production) if environment variables are correctly configured externally.
    • Unauthorized API Access (Severity: High): Limits the scope of the bypass to the testing environment, reducing the risk of misuse if environment variables are correctly configured.

  • Impact:

    • Authentication Bypass Backdoor: Risk significantly reduced, dependent on external CI/CD configuration. Within Cypress itself, the code is now conditional.
    • Unauthorized API Access: Risk reduced, as the bypass is conditionally active only within the test environment (again, dependent on external configuration).

  • Currently Implemented:

    • Cypress test files: cypress/e2e/auth.cy.js, cypress/e2e/api_tests.cy.js (conditional logic implemented).

  • Missing Implementation:

    • Comprehensive Review: Need to review all test files to ensure no cy.request() calls bypass authentication outside of the conditional block.
    • Test Coverage: Ensure tests exist that explicitly cover both the bypass and non-bypass scenarios.

Mitigation Strategy: Secrets Access via Cypress.env()

  • Description:

    1. Within your Cypress test files, identify all instances where sensitive data (API keys, passwords, etc.) is hardcoded.

    2. Replace all hardcoded values with calls to Cypress.env():

      // BAD:
const apiKey = 'my-secret-api-key';

// GOOD:
const apiKey = Cypress.env('API_KEY');

    3. Ensure that the corresponding environment variables (e.g., API_KEY) are defined in your Cypress configuration or are provided through your CI/CD pipeline. (This part is external to Cypress, but the usage is within Cypress).

    4. Add comments within the test file to indicate which environment variables are used and their purpose.

  • Threats Mitigated:

    • Exposure of Sensitive Data in Test Code (Severity: High): Prevents hardcoding of sensitive data directly within the test scripts.
    • Credential Leakage (Severity: High): Reduces the risk if the test code repository is compromised (as the secrets themselves are not in the code).

  • Impact:

    • Exposure of Sensitive Data in Test Code: Risk significantly reduced, assuming the environment variables are managed securely externally.
    • Credential Leakage: Risk reduced, dependent on the security of the external secrets management system.

  • Currently Implemented:

    • Cypress test files: Partially implemented. Some tests use Cypress.env(), but others still have hardcoded values.

  • Missing Implementation:

    • Complete Migration: Need to refactor all Cypress tests to use Cypress.env() for all sensitive data.
    • Consistency Check: Ensure all environment variables used in tests are documented and consistently defined across different environments.

Mitigation Strategy: XSS Input Validation Testing (Cypress Assertions)

  • Description:

    1. Within your Cypress test files, create dedicated tests (or add to existing tests) that specifically target input fields susceptible to XSS.
    2. Use cy.get() to select the input field.
    3. Use cy.type() to inject XSS payloads (e.g., <script>alert('XSS')</script>).
    4. Crucially, use Cypress assertions to verify that the XSS payload is not executed:
      • cy.on('window:alert', (str) => { expect(str).to.not.equal('XSS'); }); (Check that no alert box with the payload appears).
      • cy.get('script').should('not.exist'); (Check that no script tag was injected into the DOM).
      • cy.contains('<script>').should('not.exist'); (Check for the presence of the injected script tag text).
    5. Repeat this process with a variety of XSS payloads.

  • Threats Mitigated:

    • XSS Vulnerabilities Introduced by Test Code (Severity: Medium): Ensures the test code itself doesn't trigger XSS.
    • Application XSS Vulnerabilities (Severity: High): Helps identify and prevent XSS in the application (secondary benefit, as the focus is on Cypress-specific risks).

  • Impact:

    • XSS Vulnerabilities Introduced by Test Code: Risk reduced from Medium to Low.
    • Application XSS Vulnerabilities: Contributes to reducing application XSS risk (but relies on the application's own security).

  • Currently Implemented:

    • Cypress test files: A few basic XSS tests exist in cypress/e2e/security.cy.js, but they are not comprehensive.

  • Missing Implementation:

    • Comprehensive Coverage: Need tests for all relevant input fields.
    • Wider Payload Range: Use a broader range of XSS payloads (OWASP cheat sheet).
    • Specific Assertions: Use more specific assertions (like cy.on('window:alert')) to directly check for XSS execution.