Web Security: Common Vulnerabilities And Their Mitigation - Types of SQL injection

The video tutorial explains different types of SQL injection attacks: inband, blind, and out of band. Inband SQL injection uses the same communication channel for attack and data retrieval, with subtypes like error-based and union-based. Blind SQL injection involves no direct data transfer, relying on server response to infer database structure, and includes Boolean-based and time-based methods. Out of band SQL injection depends on specific database features to send data to an attacker, such as DNS requests.

Which type of SQL injection uses the same communication channel for both launching the attack and gathering results?

• Inband SQL Injection

• Blind SQL Injection

• Time-based SQL Injection

• Out-of-band SQL Injection

What is a key characteristic of Error-based SQL injection?

• It uses DNS requests to gather information.

• It relies on time delays to infer data.

• It combines multiple SQL statements using UNION.

• It exploits error messages to gain database insights.

How does Union-based SQL injection work?

• By appending a UNION statement to the original query.

• By exploiting server features to make external requests.

• By sending multiple payloads to observe server behavior.

• By using error messages to extract data.

In a Blind SQL injection attack, how does an attacker infer the database structure?

• By observing server responses to different payloads.

• By directly viewing the results of the attack.

• By using error messages from the server.

• By making DNS requests to the attacker's server.

What distinguishes Boolean-based SQL injection from other types?

• It relies on true or false server responses.

• It uses time delays to infer data.

• It exploits server features to make external requests.

• It combines multiple SQL statements using UNION.

What is a characteristic of Time-based SQL injection?

• It exploits server features to make external requests.

• It combines multiple SQL statements using UNION.

• It relies on server response delays to infer information.

• It uses error messages to extract data.

What makes Out-of-band SQL injection less common?

• It requires specific server features to be enabled.

• It relies on error messages to extract data.

• It uses time delays to infer data.

• It combines multiple SQL statements using UNION.