What are some examples of SQL injection attacks?

What are some examples of SQL injection attacks?

SQL injection is a code injection technique that exploits vulnerabilities in an application's software. For example, if a login form uses the following SQL query: SELECT * FROM users WHERE username = 'user' AND password = 'pass'; An attacker could input user' OR '1'='1 as the username, which would change the query to always return true, allowing unauthorized access.

Can you give me another example?

Sure! Consider a search feature that uses a query like SELECT * FROM products WHERE name = 'search_term'; An attacker might input search_term' UNION SELECT * FROM users; --, which could expose sensitive user data.

How can I prevent SQL injection?

To prevent SQL injection, use prepared statements and parameterized queries. This ensures that user input is treated as data, not executable code.

Are there any tools to test for SQL injection vulnerabilities?

Yes, there are several tools like SQLMap, Burp Suite, and OWASP ZAP that can help identify SQL injection vulnerabilities in your applications.