Blind SQL Injection Prevention, Testing, And Examples
Mar 21, 2022
Injection flaws allow adversaries to inject untrusted data into a system or application through a malicious query/command. The malicious code is typically used to compromise both the application’s clients and backend systems. This article explains a Blind SQL Injection flaw, various types of attacks, and best practices to prevent them.
Table of contentsWhat is SQL Injection?Blind SQLi ExplainedHow to Prevent Blind Injection Attacks and its Importance in SecurityBlind SQL Injection ExampleFAQs What is SQL Injection?
The SQL injection (SQLi) vulnerability enables attackers to send malicious input to an application by modifying database queries. By exploiting SQLi flaws, hackers can manipulate the application’s backend using malicious statements that control its database server. Therefore, the hackers can access all the database contents or bypass application security checks using SQL injection vulnerabilities. Adversaries can also use dangerous SQL queries to delete, modify or add remote database records, thus impacting the credibility of data processed by the vulnerable web application.
The hacker must scan the application for user input interfaces vulnerable to injection to perform an SQL injection attack. They then create a malicious payload using SQL statements to be executed by the application’s database. Besides accessing data tables and user credentials, attackers can craft malicious SQL queries to access the OS using the database server. SQL injection is