Crucial Exams

Certified Ethical Hacker (CEH) Practice Question

While testing an e-commerce site, you discover a numeric product_id parameter that is vulnerable to SQL injection but does not return any visible error messages or data. You want to confirm that the back-end database connection can still execute your injected code without relying on displayed output. Which attack technique is specifically designed to verify database connectivity in this situation by measuring server response time?

  • Append an inline comment (--) to truncate the original query and observe the page layout.

  • Inject a time-based SQL payload that forces the database to pause before responding.

  • Use a UNION-based payload to join the results of SELECT @@version to the HTTP response.

  • Attempt a stacked query that inserts a new row and then selects it back.

Certified Ethical Hacker (CEH)
Web Application Hacking
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