What does sql injection mean?

SQL injection means that the user can submit a database query code and obtain certain data that needs to be known based on the results returned by the program. SQL injection attacks are one of the common means used by hackers to attack databases. We can achieve effective protection through database security protection technology.

sql injection introduction

SQL injection attack is one of the common means used by hackers to attack the database.

With the development of B/S mode application development, more and more programmers use this mode to write applications. However, due to the uneven level and experience of programmers, a considerable number of programmers do not judge the legality of user input data when writing code, causing security risks in applications.

The user can submit a database query code and obtain some data he wants to know based on the results returned by the program. This is the so-called SQL Injection, that is, SQL injection.

Database security protection technology:

SQL injection attack is one of the database security attack methods. Effective protection can be achieved through database security protection technology. Database security protection technology includes: database leak scanning , database encryption, database firewall, data desensitization, database security audit system.

Database security risks caused by SQL injection attacks include: database brushing, database dragging, and database stuffing.

SQL injection is accessed from the normal WWW port, and on the surface it looks no different from ordinary Web page access, so the firewalls on the market will not issue an alert for SQL injection. If the administrator does not check the IIS log Habits may be invaded without being noticed for a long time.

However, the SQL injection method is quite flexible. You will encounter many unexpected situations during injection, and you need to construct clever SQL statements to successfully obtain the desired data.

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