Certified Ethical Hacker (CEH v10) — Question 199

You are looking for SQL injection vulnerability by sending a special character to web applications. Which of the following is the most useful for quick validation?

Answer options

• A. Double quotation
• B. Backslash
• C. Semicolon
• D. Single quotation

Correct answer: D

Explanation

The correct answer is D, as a single quotation mark is the most commonly used character to exploit SQL injection vulnerabilities, allowing attackers to manipulate SQL queries. The other options, while they may have some relevance in specific contexts, do not typically lead to the same level of immediate validation for SQL injection as the single quotation does.