Never trust user input. Use an "allow-list" approach to ensure that a keyword only contains expected characters (like alphanumeric characters) and reject anything containing keywords like SELECT , FROM , or special symbols like -- and || [5]. 4. Use Web Application Firewalls (WAF)
If you are a developer or a site owner looking to defend against this specific type of attack, here is a quick guide on how to handle it: 1. Identify the Vulnerability Never trust user input
"SELECT * FROM products WHERE name = '" + userInput + "'" Use Web Application Firewalls (WAF) If you are
The string you provided is designed to trick a database into executing a command by appending it to a legitimate search term ( KEYWORD ). It uses the SELECT CASE statement to test if a condition (like 9298=9298 ) is true, which helps an attacker confirm that the database is vulnerable [2, 3]. 2. Primary Defense: Prepared Statements you use placeholders.
The most effective way to stop this is to use (Prepared Statements). Instead of building a query string with user input, you use placeholders.
