Web Security: Common Vulnerabilities And Their Mitigation - SQLi mitigation - parameterized queries and stored procedure

The video tutorial discusses SQL injection threats and how to mitigate them using techniques like parameterized statements, prepared statements, and stored procedures. It explains the importance of separating code from user data to prevent malicious SQL injection. Examples are provided to illustrate how these methods work, emphasizing the security benefits and potential performance trade-offs.

Which of the following is NOT a recommended method to protect against SQL injection?

• Using parameterized statements

• Sanitizing user input

• Using stored procedures

• Giving all accounts maximum privileges

What is a key advantage of using parameterized statements in SQL queries?

• They are more complex to write

• They allow user input to be directly concatenated

• They require more privileges for execution

• They separate code from data, preventing SQL injection

In the context of parameterized queries, what does the placeholder '?' represent?

• A database table

• A user input value

• A SQL command

• A query result

How does binding user input to a prepared statement help in preventing SQL injection?

• It ignores the input completely

• It concatenates the input with the query

• It allows the input to be executed as a command

• It treats the input as a literal string

What happens if an attacker tries to inject SQL through a parameterized query?

• The query is ignored

• The database crashes

• The input is treated as a literal string, preventing injection

• The query executes with the injected SQL

What is a potential downside of using prepared statements?

• They always improve query performance

• They are not supported by any database

• They can sometimes harm query performance

• They require more complex syntax

How do stored procedures help in mitigating SQL injection attacks?

• They allow dynamic query construction

• They execute SQL statements in an all-or-nothing manner

• They require user input to be concatenated

• They increase the privileges of the database user