Sql Injection Attacks, Prevention Techniques, And Why It Matters

SQL Injection – an input validation attack specific to database applications where SQL code is inserted into application queries to manipulate the database.

The Aim Higher college has recently had some issues of sensitive information being stolen from students when registering for classes. I believe that the web application that the student information system is using is a problem named SQL injection. A SQL injection attack is an attack where the attacker can run malicious SQL queries against a web application’s database server and it can be a danger for the users who access the web page because the hacker will look for their personal information records, then delete it or modify the information gained. This type of attack is no joke we have to take action and create a plan to resolve this vulnerability on our database, so the students will register for their courses with our security on their side.

Even though there are this kind of attacks. This Microsoft SQL Server has the tools and technologies that mitigate this kind of attacks and there are what am going to talk about.

SQL means Structured Query Language: almost all databases provide an SQL interface. It's a standardised and restricted set of keywords which can be used to query, create and update databases.

Figure 11 shows the relationship of a database using DBMS, connecting the user with the information from the database. A database consists of many data from customers to orders, services, employees, and so on. The user can be a customer or employee. Employees use DBMS to find customer’s information, service types, and service provider information. Later in the process, the DBMS will then extract data from the database to answer the users’ questions.

Databases are normally used by businesses and schools to store their data. These databases are kept secure, and users can only access the information stored on the database they have been granted access to. Now data is added to, accessed, or remove from a database using languages such as SQL (Structured Query Language), MYSQL (My Sequel), etc.

SQL assault process SQL vulnerabilities exist where there are applications need to powerfully developed SQL explanations as per Web customer environment. Since the server-side applications use SQL statements as interwoven operation of the database, which permits an invader to present the information they need incorporated into SQL proclamations. For

SQL injections are the serious threat to the web applications; they permit attackers to acquire unlimited access to the databases and sensitive data these databases contain. Despite the fact that analysts and experts have proposed different strategies to address the SQL injection attacks. Many solutions are able to solve only some of the issues related to it. This document provides the types

SQL injection is a technique where malicious users inject SQL commands into an SQL statement, via web page input. Injected SQL commands can alter SQL statement and compromise the security of a web application. SQL injection is one of the oldest, most prevalent and dangerous of web application vulnerability. I believe attackers could steal information by following methods. Most web pages have users or given user id to login, and original idea

There are numerous techniques to mitigate security threats to databases out of which few are mentioned below

With the advent of Internet, web applications have become a day to day feature in our lives. Also with the constant usage of online services increasing every day, there has been an equally growing concern regarding the security threats in web applications. One of the most common attacks exploiting the vulnerabilities of various types of applications along with web applications is through the Structured Query Language Injection Attack also known as SQL Injection Attack. Based on a recent study by OWASP, SQL injection attack has the highest rank in revealing web based vulnerabilities. One of the major motivation for the attacker to perform SQL injection attack is for retrieving all the contents from the database without any authorization or permission. It is a code injection technique where an attacker inserts a malicious query in the original legitimate SQL query. After the execution of the query, the attacker has the access to the database and can obtain, change, and update data for which he/she does not have any permission.

SQL Injection is one of the main database attack mechanisms used by hackers to loot organization 's data from databases. Hacker target the application layer program and takes advantage of the improper coding methods to inject SQL command into a web form and then gain access to the database. SQL injection may adversely affect the integrity of the database and may reveal sensitive data of the organization. The intensity of the SQL injection attack vary depend on the capabilities of the backend database in use. With the help of SQL injection hacker can change existing queries, attach additional queries, read in or write to file or execute operating system command from the database. To protect organization data from SQL injection we need to apply security measures in the application layer and in the database layer. The purpose of this study is to analyze the database functionalities/security holes, mainly Oracle and MySQL, and propose the preventive measures database developers need to consider in the database layer while working with these databases to secure data from SQL injection.

There are various but similar SQL injection codes that are utilized to exploit website accounts. But the Hacker has to be well versed with SQL query language. Not that a quick search and some dedication to obtaining that information is not feasible. Finally having understood the step-by-step SQL injection execution, let’s look into how to mitigate SQL injections. (Kali, 2017)

Web applications are nowadays serving as a company’s public face to the internet. This has created the need to identify threats and attacks directed to data servers and web applications. Hackers exploit vulnerabilities in input validation and authentication affecting the web application in order to gain illegal access and disclose sensitive data or manipulate it to their benefits.

The protection of the database from unauthorized users is the maintenance of database security. This controls come in the form of user names and passwords to identify people who have the authority to use the database. The accessibility of an authorized person can be limited by the operation types such as retrieval, insert, update, delete. For instance, the DBA has access to all the data in the database, a branch manager may have access to all data that relates to his or her branch office and a sales assistant may have right to access with related to properties but no access to sensitive data such as staff salary details.