312-50V12 Question #154: Real Exam Question with Answer & Explanation

Question

You're the security manager for a tech company that uses a database to store sensitive customer data. You have implemented countermeasures against SQL injection attacks. Recently, you noticed some suspicious activities and suspect an attacker is using SQL injection techniques. The attacker is believed to use different forms of payloads in his SQL queries. In the case of a successful SQL injection attack, which of the following payloads would have the most significant impact?

Options

• AUNION SELECT NULL, NULL, NULL -- : This payload manipulates the UNION SQL operator,
• B' OR username LIKE '%': This payload uses the LIKE operator to search for a specific pattern in a
• C' OR '1'='l: This payload manipulates the WHERE clause of an SQL statement, allowing the
• D' OR 'a'='a; DROP TABLE members; --: This payload combines the manipulation of the WHERE