For example, if the sleep time is 5 seconds then it instructs the database to sleep for 5 seconds. The SQL query implemented here would be similar to Boolean Attack but would have a sleep function in the query. If the site denies this and loads without any pause it means that they are not vulnerable. Hackers here instruct the database to wait for a certain time period before responding. In many cases the Vulnerable SQL queries would be displayed visually on a web page but can be still easy to find out. SQL Injection is done through Time Based Query: To confirm this suspicion, the hacker would put a wrong query:Īs this condition is false and if the webpage does not work as usual it shows that webpage is vulnerable to SQL Injection attack. On confirmation of these notifications the hacker inserts a false condition into the SQL query to test the vulnerability level of the application and the proximity of data extraction.Īfter inserting this query if the website loads normally then it gives an indication that it is vulnerable to an SQL injection.
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