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Exam Code: 312-50v13

Exam Name Certified Ethical Hacker v13

Certification Provider: ECCouncil

Corresponding Certification: CEH

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ECCouncil 312-50v13 Practice Test 55

Question 540

At Timberline Foods, the supply-chain assurance team is conducting a coordinated processing-plant assessment under requirements for food safety and secure logistics. Following the approved correction, auditors require proof that: A browser application reflects user-submitted comments into HTML without context-appropriate output encoding. Which result BEST demonstrates successful remediation?

  1. A completed reset consumes the token and attempts to reuse or expire it fail safely.
  2. An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.
  3. Altering the hidden field cannot approve an invoice and authorized approvers continue working.
  4. A harmless test string containing HTML metacharacters renders as text instead of creating executable markup.

Explanation

Correct Answer

D:

A harmless test string containing HTML metacharacters renders as text instead of creating executable markup. The observable result demonstrates that the documented condition, A browser application reflects user-submitted comments into HTML without context-appropriate output encoding. has been addressed. The planned remediation is: Encode untrusted content for the output context and use reviewed templates and browser controls. This is a stronger validation than a saved ticket or unverified claim by Timberline Foods.

Incorrect Answers

A:

A completed reset consumes the token and attempts to reuse or expire it fail safely. That observation would verify another scenario: An application uses an unbounded password reset token and never expires outstanding reset links after a successful reset. The corrective step for that other scenario is: Use short-lived single-use reset tokens, securely verify ownership, and invalidate prior tokens on password change. But Timberline Foods is evaluating: A browser application reflects user-submitted comments into HTML without context-appropriate output encoding. The necessary outcome is: A harmless test string containing HTML metacharacters renders as text instead of creating executable markup.

B:

An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable. That observation would verify another scenario: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. The corrective step for that other scenario is: Use explicit allowlists for writable fields and maintain role assignment through privileged backend workflows. But Timberline Foods is evaluating: A browser application reflects user-submitted comments into HTML without context-appropriate output encoding. The necessary outcome is: A harmless test string containing HTML metacharacters renders as text instead of creating executable markup.

C:

Altering the hidden field cannot approve an invoice and authorized approvers continue working. That observation would verify another scenario: A web application uses a hidden HTML form field to decide whether a requester may approve an invoice. The corrective step for that other scenario is: Enforce the authorization decision on the server using the caller's identity and object rights. But Timberline Foods is evaluating: A browser application reflects user-submitted comments into HTML without context-appropriate output encoding. The necessary outcome is: A harmless test string containing HTML metacharacters renders as text instead of creating executable markup.

Question 541

At Juniper Media, the digital-platform security team is conducting a scoped content-delivery assessment under requirements for rights enforcement and safe media workflows. Assessors report the following documented condition: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. Which action BEST addresses the documented security gap?

  1. Add a server-validated anti-CSRF mechanism and appropriate SameSite cookie policy for the session model.
  2. Validate file content and size, isolate storage, and serve uploads with safe content handling and permissions.
  3. Validate post-login destinations against a trusted relative-path or allowed-origin policy.
  4. Enforce the authorization decision on the server using the caller's identity and object rights.

Explanation

Correct Answer

A:

Add a server-validated anti-CSRF mechanism and appropriate SameSite cookie policy for the session model. This directly addresses the authorized assessment finding: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. The Juniper Media team should verify the outcome rather than treat a configuration edit as proof. Acceptance evidence: A cross-origin test cannot change account settings, but an authorized first-party request succeeds.

Incorrect Answers

B:

Validate file content and size, isolate storage, and serve uploads with safe content handling and permissions. This is an appropriate control for a different issue: A file upload service stores user files in a web-executable directory and trusts the client-supplied MIME header. The Juniper Media finding instead concerns: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. It does not demonstrate the required correction. The decisive test remains: A cross-origin test cannot change account settings, but an authorized first-party request succeeds.

C:

Validate post-login destinations against a trusted relative-path or allowed-origin policy. This is an appropriate control for a different issue: An API trusts a client-provided redirect URL and sends authenticated users to an unapproved external site after login. The Juniper Media finding instead concerns: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. It does not demonstrate the required correction. The decisive test remains: A cross-origin test cannot change account settings, but an authorized first-party request succeeds.

D:

Enforce the authorization decision on the server using the caller's identity and object rights. This is an appropriate control for a different issue: A web application uses a hidden HTML form field to decide whether a requester may approve an invoice. The Juniper Media finding instead concerns: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. It does not demonstrate the required correction. The decisive test remains: A cross-origin test cannot change account settings, but an authorized first-party request succeeds.

Question 542

At Juniper Media, the digital-platform security team is conducting a scoped content-delivery assessment under requirements for rights enforcement and safe media workflows. The team now needs objective retest evidence for: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. Which result BEST demonstrates successful remediation?

  1. A user cannot retrieve or modify another customer's order by substituting the identifier.
  2. Attempts to request unrelated files return an authorization error while approved reports remain downloadable.
  3. Altering the hidden field cannot approve an invoice and authorized approvers continue working.
  4. A cross-origin test cannot change account settings, but an authorized first-party request succeeds.

Explanation

Correct Answer

D:

A cross-origin test cannot change account settings, but an authorized first-party request succeeds. The observable result demonstrates that the documented condition, A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. has been addressed. The planned remediation is: Add a server-validated anti-CSRF mechanism and appropriate SameSite cookie policy for the session model. This is a stronger validation than a saved ticket or unverified claim by Juniper Media.

Incorrect Answers

A:

A user cannot retrieve or modify another customer's order by substituting the identifier. That observation would verify another scenario: A customer portal fetches an order by numeric identifier but fails to check whether the current user owns that order. The corrective step for that other scenario is: Apply object-level authorization checks on every read and mutation endpoint. But Juniper Media is evaluating: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. The necessary outcome is: A cross-origin test cannot change account settings, but an authorized first-party request succeeds.

B:

Attempts to request unrelated files return an authorization error while approved reports remain downloadable. That observation would verify another scenario: A report download endpoint accepts an arbitrary server path and returns files outside the approved reports directory. The corrective step for that other scenario is: Resolve download resources through scoped identifiers and a fixed allowlisted storage location. But Juniper Media is evaluating: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. The necessary outcome is: A cross-origin test cannot change account settings, but an authorized first-party request succeeds.

C:

Altering the hidden field cannot approve an invoice and authorized approvers continue working. That observation would verify another scenario: A web application uses a hidden HTML form field to decide whether a requester may approve an invoice. The corrective step for that other scenario is: Enforce the authorization decision on the server using the caller's identity and object rights. But Juniper Media is evaluating: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. The necessary outcome is: A cross-origin test cannot change account settings, but an authorized first-party request succeeds.

Question 543

At Meadowbrook Finance, the banking cyber assurance team is conducting a controlled financial-services security review under requirements for auditability and transaction integrity. The control assessment finds: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. Which action BEST addresses the documented security gap?

  1. Recalculate totals server-side from authoritative prices and validated discounts rather than client-controlled arithmetic.
  2. Add a server-validated anti-CSRF mechanism and appropriate SameSite cookie policy for the session model.
  3. Encode untrusted content for the output context and use reviewed templates and browser controls.
  4. Use explicit allowlists for writable fields and maintain role assignment through privileged backend workflows.

Explanation

Correct Answer

B:

Add a server-validated anti-CSRF mechanism and appropriate SameSite cookie policy for the session model. This directly addresses the authorized assessment finding: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. The Meadowbrook Finance team should verify the outcome rather than treat a configuration edit as proof. Acceptance evidence: A cross-origin test cannot change account settings, but an authorized first-party request succeeds.

Incorrect Answers

A:

Recalculate totals server-side from authoritative prices and validated discounts rather than client-controlled arithmetic. This is an appropriate control for a different issue: A shopping application applies a discount only in browser JavaScript and trusts the client-submitted final payment amount. The Meadowbrook Finance finding instead concerns: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. It does not demonstrate the required correction. The decisive test remains: A cross-origin test cannot change account settings, but an authorized first-party request succeeds.

C:

Encode untrusted content for the output context and use reviewed templates and browser controls. This is an appropriate control for a different issue: A browser application reflects user-submitted comments into HTML without context-appropriate output encoding. The Meadowbrook Finance finding instead concerns: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. It does not demonstrate the required correction. The decisive test remains: A cross-origin test cannot change account settings, but an authorized first-party request succeeds.

D:

Use explicit allowlists for writable fields and maintain role assignment through privileged backend workflows. This is an appropriate control for a different issue: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. The Meadowbrook Finance finding instead concerns: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. It does not demonstrate the required correction. The decisive test remains: A cross-origin test cannot change account settings, but an authorized first-party request succeeds.

Question 544

At Meadowbrook Finance, the banking cyber assurance team is conducting a controlled financial-services security review under requirements for auditability and transaction integrity. An independent validation is requested for the original problem: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. Which result BEST demonstrates successful remediation?

  1. A user cannot retrieve or modify another customer's order by substituting the identifier.
  2. A completed reset consumes the token and attempts to reuse or expire it fail safely.
  3. A cross-origin test cannot change account settings, but an authorized first-party request succeeds.
  4. Tampered browser totals are rejected and approved purchases retain correct server-calculated charges.

Explanation

Correct Answer

C:

A cross-origin test cannot change account settings, but an authorized first-party request succeeds. The observable result demonstrates that the documented condition, A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. has been addressed. The planned remediation is: Add a server-validated anti-CSRF mechanism and appropriate SameSite cookie policy for the session model. This is a stronger validation than a saved ticket or unverified claim by Meadowbrook Finance.

Incorrect Answers

A:

A user cannot retrieve or modify another customer's order by substituting the identifier. That observation would verify another scenario: A customer portal fetches an order by numeric identifier but fails to check whether the current user owns that order. The corrective step for that other scenario is: Apply object-level authorization checks on every read and mutation endpoint. But Meadowbrook Finance is evaluating: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. The necessary outcome is: A cross-origin test cannot change account settings, but an authorized first-party request succeeds.

B:

A completed reset consumes the token and attempts to reuse or expire it fail safely. That observation would verify another scenario: An application uses an unbounded password reset token and never expires outstanding reset links after a successful reset. The corrective step for that other scenario is: Use short-lived single-use reset tokens, securely verify ownership, and invalidate prior tokens on password change. But Meadowbrook Finance is evaluating: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. The necessary outcome is: A cross-origin test cannot change account settings, but an authorized first-party request succeeds.

D:

Tampered browser totals are rejected and approved purchases retain correct server-calculated charges. That observation would verify another scenario: A shopping application applies a discount only in browser JavaScript and trusts the client-submitted final payment amount. The corrective step for that other scenario is: Recalculate totals server-side from authoritative prices and validated discounts rather than client-controlled arithmetic. But Meadowbrook Finance is evaluating: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. The necessary outcome is: A cross-origin test cannot change account settings, but an authorized first-party request succeeds.

Question 545

At Eastshore Energy, the energy risk engineering team is conducting an authorized field-security exercise under requirements for remote equipment availability. The authorized review identifies: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. Which action BEST addresses the documented security gap?

  1. Use short-lived single-use reset tokens, securely verify ownership, and invalidate prior tokens on password change.
  2. Encode untrusted content for the output context and use reviewed templates and browser controls.
  3. Apply object-level authorization checks on every read and mutation endpoint.
  4. Use explicit allowlists for writable fields and maintain role assignment through privileged backend workflows.

Explanation

Correct Answer

D:

Use explicit allowlists for writable fields and maintain role assignment through privileged backend workflows. This directly addresses the authorized assessment finding: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. The Eastshore Energy team should verify the outcome rather than treat a configuration edit as proof. Acceptance evidence: An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.

Incorrect Answers

A:

Use short-lived single-use reset tokens, securely verify ownership, and invalidate prior tokens on password change. This is an appropriate control for a different issue: An application uses an unbounded password reset token and never expires outstanding reset links after a successful reset. The Eastshore Energy finding instead concerns: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. It does not demonstrate the required correction. The decisive test remains: An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.

B:

Encode untrusted content for the output context and use reviewed templates and browser controls. This is an appropriate control for a different issue: A browser application reflects user-submitted comments into HTML without context-appropriate output encoding. The Eastshore Energy finding instead concerns: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. It does not demonstrate the required correction. The decisive test remains: An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.

C:

Apply object-level authorization checks on every read and mutation endpoint. This is an appropriate control for a different issue: A customer portal fetches an order by numeric identifier but fails to check whether the current user owns that order. The Eastshore Energy finding instead concerns: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. It does not demonstrate the required correction. The decisive test remains: An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.

Question 546

At Eastshore Energy, the energy risk engineering team is conducting an authorized field-security exercise under requirements for remote equipment availability. Following the approved correction, auditors require proof that: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. Which result BEST demonstrates successful remediation?

  1. An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.
  2. A user cannot retrieve or modify another customer's order by substituting the identifier.
  3. A harmless disallowed file-type test cannot execute as server code and approved uploads remain accessible only to their owners.
  4. A completed reset consumes the token and attempts to reuse or expire it fail safely.

Explanation

Correct Answer

A:

An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable. The observable result demonstrates that the documented condition, A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. has been addressed. The planned remediation is: Use explicit allowlists for writable fields and maintain role assignment through privileged backend workflows. This is a stronger validation than a saved ticket or unverified claim by Eastshore Energy.

Incorrect Answers

B:

A user cannot retrieve or modify another customer's order by substituting the identifier. That observation would verify another scenario: A customer portal fetches an order by numeric identifier but fails to check whether the current user owns that order. The corrective step for that other scenario is: Apply object-level authorization checks on every read and mutation endpoint. But Eastshore Energy is evaluating: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. The necessary outcome is: An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.

C:

A harmless disallowed file-type test cannot execute as server code and approved uploads remain accessible only to their owners. That observation would verify another scenario: A file upload service stores user files in a web-executable directory and trusts the client-supplied MIME header. The corrective step for that other scenario is: Validate file content and size, isolate storage, and serve uploads with safe content handling and permissions. But Eastshore Energy is evaluating: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. The necessary outcome is: An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.

D:

A completed reset consumes the token and attempts to reuse or expire it fail safely. That observation would verify another scenario: An application uses an unbounded password reset token and never expires outstanding reset links after a successful reset. The corrective step for that other scenario is: Use short-lived single-use reset tokens, securely verify ownership, and invalidate prior tokens on password change. But Eastshore Energy is evaluating: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. The necessary outcome is: An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.

Question 547

At Alpine Healthcare, the clinical technology defense team is conducting an authorized hospital risk exercise under requirements for patient safety and minimized disruption. Assessors report the following documented condition: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. Which action BEST addresses the documented security gap?

  1. Validate file content and size, isolate storage, and serve uploads with safe content handling and permissions.
  2. Enforce the authorization decision on the server using the caller's identity and object rights.
  3. Use explicit allowlists for writable fields and maintain role assignment through privileged backend workflows.
  4. Add a server-validated anti-CSRF mechanism and appropriate SameSite cookie policy for the session model.

Explanation

Correct Answer

C:

Use explicit allowlists for writable fields and maintain role assignment through privileged backend workflows. This directly addresses the authorized assessment finding: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. The Alpine Healthcare team should verify the outcome rather than treat a configuration edit as proof. Acceptance evidence: An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.

Incorrect Answers

A:

Validate file content and size, isolate storage, and serve uploads with safe content handling and permissions. This is an appropriate control for a different issue: A file upload service stores user files in a web-executable directory and trusts the client-supplied MIME header. The Alpine Healthcare finding instead concerns: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. It does not demonstrate the required correction. The decisive test remains: An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.

B:

Enforce the authorization decision on the server using the caller's identity and object rights. This is an appropriate control for a different issue: A web application uses a hidden HTML form field to decide whether a requester may approve an invoice. The Alpine Healthcare finding instead concerns: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. It does not demonstrate the required correction. The decisive test remains: An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.

D:

Add a server-validated anti-CSRF mechanism and appropriate SameSite cookie policy for the session model. This is an appropriate control for a different issue: A state-changing account setting endpoint accepts authenticated cross-site requests without checking request origin or CSRF defenses. The Alpine Healthcare finding instead concerns: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. It does not demonstrate the required correction. The decisive test remains: An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.

Question 548

At Alpine Healthcare, the clinical technology defense team is conducting an authorized hospital risk exercise under requirements for patient safety and minimized disruption. The team now needs objective retest evidence for: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. Which result BEST demonstrates successful remediation?

  1. A harmless disallowed file-type test cannot execute as server code and approved uploads remain accessible only to their owners.
  2. An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.
  3. Attempts to request unrelated files return an authorization error while approved reports remain downloadable.
  4. Tampered browser totals are rejected and approved purchases retain correct server-calculated charges.

Explanation

Correct Answer

B:

An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable. The observable result demonstrates that the documented condition, A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. has been addressed. The planned remediation is: Use explicit allowlists for writable fields and maintain role assignment through privileged backend workflows. This is a stronger validation than a saved ticket or unverified claim by Alpine Healthcare.

Incorrect Answers

A:

A harmless disallowed file-type test cannot execute as server code and approved uploads remain accessible only to their owners. That observation would verify another scenario: A file upload service stores user files in a web-executable directory and trusts the client-supplied MIME header. The corrective step for that other scenario is: Validate file content and size, isolate storage, and serve uploads with safe content handling and permissions. But Alpine Healthcare is evaluating: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. The necessary outcome is: An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.

C:

Attempts to request unrelated files return an authorization error while approved reports remain downloadable. That observation would verify another scenario: A report download endpoint accepts an arbitrary server path and returns files outside the approved reports directory. The corrective step for that other scenario is: Resolve download resources through scoped identifiers and a fixed allowlisted storage location. But Alpine Healthcare is evaluating: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. The necessary outcome is: An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.

D:

Tampered browser totals are rejected and approved purchases retain correct server-calculated charges. That observation would verify another scenario: A shopping application applies a discount only in browser JavaScript and trusts the client-submitted final payment amount. The corrective step for that other scenario is: Recalculate totals server-side from authoritative prices and validated discounts rather than client-controlled arithmetic. But Alpine Healthcare is evaluating: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. The necessary outcome is: An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.

Question 549

At Brookside Manufacturing, the industrial security team is conducting a plant safety and IT security assessment under requirements for production continuity and controlled test windows. The control assessment finds: An application uses an unbounded password reset token and never expires outstanding reset links after a successful reset. Which action BEST addresses the documented security gap?

  1. Validate file content and size, isolate storage, and serve uploads with safe content handling and permissions.
  2. Recalculate totals server-side from authoritative prices and validated discounts rather than client-controlled arithmetic.
  3. Enforce the authorization decision on the server using the caller's identity and object rights.
  4. Use short-lived single-use reset tokens, securely verify ownership, and invalidate prior tokens on password change.

Explanation

Correct Answer

D:

Use short-lived single-use reset tokens, securely verify ownership, and invalidate prior tokens on password change. This directly addresses the authorized assessment finding: An application uses an unbounded password reset token and never expires outstanding reset links after a successful reset. The Brookside Manufacturing team should verify the outcome rather than treat a configuration edit as proof. Acceptance evidence: A completed reset consumes the token and attempts to reuse or expire it fail safely.

Incorrect Answers

A:

Validate file content and size, isolate storage, and serve uploads with safe content handling and permissions. This is an appropriate control for a different issue: A file upload service stores user files in a web-executable directory and trusts the client-supplied MIME header. The Brookside Manufacturing finding instead concerns: An application uses an unbounded password reset token and never expires outstanding reset links after a successful reset. It does not demonstrate the required correction. The decisive test remains: A completed reset consumes the token and attempts to reuse or expire it fail safely.

B:

Recalculate totals server-side from authoritative prices and validated discounts rather than client-controlled arithmetic. This is an appropriate control for a different issue: A shopping application applies a discount only in browser JavaScript and trusts the client-submitted final payment amount. The Brookside Manufacturing finding instead concerns: An application uses an unbounded password reset token and never expires outstanding reset links after a successful reset. It does not demonstrate the required correction. The decisive test remains: A completed reset consumes the token and attempts to reuse or expire it fail safely.

C:

Enforce the authorization decision on the server using the caller's identity and object rights. This is an appropriate control for a different issue: A web application uses a hidden HTML form field to decide whether a requester may approve an invoice. The Brookside Manufacturing finding instead concerns: An application uses an unbounded password reset token and never expires outstanding reset links after a successful reset. It does not demonstrate the required correction. The decisive test remains: A completed reset consumes the token and attempts to reuse or expire it fail safely.

Question 550

At Brookside Manufacturing, the industrial security team is conducting a plant safety and IT security assessment under requirements for production continuity and controlled test windows. An independent validation is requested for the original problem: An application uses an unbounded password reset token and never expires outstanding reset links after a successful reset. Which result BEST demonstrates successful remediation?

  1. Altering the hidden field cannot approve an invoice and authorized approvers continue working.
  2. An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable.
  3. A completed reset consumes the token and attempts to reuse or expire it fail safely.
  4. A crafted external redirect is rejected while safe application routes work as intended.

Explanation

Correct Answer

C:

A completed reset consumes the token and attempts to reuse or expire it fail safely. The observable result demonstrates that the documented condition, An application uses an unbounded password reset token and never expires outstanding reset links after a successful reset. has been addressed. The planned remediation is: Use short-lived single-use reset tokens, securely verify ownership, and invalidate prior tokens on password change. This is a stronger validation than a saved ticket or unverified claim by Brookside Manufacturing.

Incorrect Answers

A:

Altering the hidden field cannot approve an invoice and authorized approvers continue working. That observation would verify another scenario: A web application uses a hidden HTML form field to decide whether a requester may approve an invoice. The corrective step for that other scenario is: Enforce the authorization decision on the server using the caller's identity and object rights. But Brookside Manufacturing is evaluating: An application uses an unbounded password reset token and never expires outstanding reset links after a successful reset. The necessary outcome is: A completed reset consumes the token and attempts to reuse or expire it fail safely.

B:

An ordinary user's attempted role change is ignored or rejected and administrative role updates remain auditable. That observation would verify another scenario: A public API accepts a client-provided role value and writes it to a user profile without server-side field restrictions. The corrective step for that other scenario is: Use explicit allowlists for writable fields and maintain role assignment through privileged backend workflows. But Brookside Manufacturing is evaluating: An application uses an unbounded password reset token and never expires outstanding reset links after a successful reset. The necessary outcome is: A completed reset consumes the token and attempts to reuse or expire it fail safely.

D:

A crafted external redirect is rejected while safe application routes work as intended. That observation would verify another scenario: An API trusts a client-provided redirect URL and sends authenticated users to an unapproved external site after login. The corrective step for that other scenario is: Validate post-login destinations against a trusted relative-path or allowed-origin policy. But Brookside Manufacturing is evaluating: An application uses an unbounded password reset token and never expires outstanding reset links after a successful reset. The necessary outcome is: A completed reset consumes the token and attempts to reuse or expire it fail safely.