![]() In some cases, error-based SQL injection alone is enough for an attacker to enumerate an entire database. The two most common types of in-band SQL Injection are Error-based SQLi and Union-based SQLi.Įrror-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-band SQL Injection occurs when an attacker is able to use the same communication channel to both launch the attack and gather results. In-band SQL Injection is the most common and easy-to-exploit of SQL Injection attacks. In some situations, an attacker can escalate an SQL injection attack to compromise the underlying server or other back-end infrastructure, or perform a denial-of-service attack. In many cases, an attacker can modify or delete this data, causing persistent changes to the application's content or behavior. This might include data belonging to other users, or any other data that the application itself is able to access. ![]() It generally allows an attacker to view data that they are not normally able to retrieve. ![]() SQL injection is a web security vulnerability that allows an attacker to interfere with the queries that an application makes to its database. In this section, we'll explain what SQL injection is, describe some common examples, explain how to find and exploit various kinds of SQL injection vulnerabilities, and summarize how to prevent SQL injection. ![]()
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