What is SQL injection? What can be the way to mitigate this vulnerability?

Question

Accepted Answer

SQL injection is a code injection technique that attackers use to exploit vulnerabilities in a database-driven application.

SQL injection occurs when an attacker inserts malicious SQL code into a query, allowing them to manipulate or extract data from the database.
It can lead to unauthorized access, data breaches, data manipulation, or even complete system compromise.
To mitigate SQL injection, use parameterized queries or prepared statements to ensure input is properly sanitized and validated.
Implementing input validation and output encoding can also help prevent SQL injection attacks.
Regularly updating and patching the application and database software can reduce the risk of SQL injection vulnerabilities.

Accepted Answer

SQL Injection (SQLi) is a type of an injection attack that makes it possible to execute malicious SQL statements. These statements control a database server behind a web application. Attackers can use SQL Injection vulnerabilities to bypass application security measures. They can go around authentication and authorization of a web page or web application and retrieve the content of the entire SQL database. They can also use SQL Injection to add, modify, and delete records in the database.

The only sure way to prevent SQL Injection attacks is input validation and parametrized queries including prepared statements. The application code should never use the input directly. The developer must sanitize all input, not only web form inputs such as login forms.

What is SQL injection? What can be the way to mitigate this vulnerability?

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