How does a time based SQL Injection work?
In a time-based SQL injection, the attacker sends SQL queries to the database, which force the database to wait for a specified amount of time before responding. The response time will indicate to the attacker whether the result of the query is true or false.
How is SQL injection used to reconstruct a database?
Instead, an attacker is able to reconstruct the database structure by sending payloads, observing the web application’s response and the resulting behavior of the database server. The two types of inferential SQL Injection are Blind-boolean-based SQLi and Blind-time-based SQLi.
How does a Boolean based SQL Injection work?
Boolean-based SQL Injection is an inferential SQL Injection technique that relies on sending an SQL query to the database which forces the application to return a different result depending on whether the query returns a TRUE or FALSE result. Depending on the result, the content within the HTTP response will change, or remain the same.
How is N1QL injection used in NoSQL databases?
This publication is focused on the N1QL injection, which can be interpreted as a type of SQL injection in a NoSQL database, and the tool we made to aid exploiting it, N1QLMap! Some of the initial content discussed can also be interpreted as generic for various database queries, however they are included to set the scene and a baseline.
How does SQL injection affect a web site?
While SQL Injection can affect any data-driven application that uses a SQL database, it is most often used to attack web sites. SQL Injection is a code injection technique that hackers can use to insert malicious SQL statements into input fields for execution by the underlying SQL database.
Which is SQL injection technique relies on error messages?
Error-based SQLi is an in-band SQL Injection technique that relies on error messages thrown by the database server to obtain information about the structure of the database. In some cases, error-based SQL injection alone is enough for an attacker to enumerate an entire database.