Allowing external connectivity to a database can make the database vulnerable to

Question

Allowing external connectivity to a database can make the database vulnerable to attack. One such method is SQL Injection. Review the W3Schools website on SQL Injection: http://www.w3schools.com/sql/sql_injection.asp. Perform your own research as needed to address the following questions:

a) What is the impact of SQL injection vulnerabilities?

b) What is the main reason for the existence of SQL injection vulnerability?

c) Is any web programming language immune to SQL injection?

d) Can SQL injection be prevented?

Explanation / Answer

a) SQL Injection vulnerabilities enables the hacker to extract information from your web database by executing any inappropriate query through the web application.It can give the hacker an unauthorized access to the confidential links and he can manage and use the data in his own way.

b) The main reason fo the existence of SQL injection vulnerability is the developer and others have made it easy to use.This is due to the lack of design and security.The encryption techniues are not hard and the designer who developes the database keeps all the information at one place that makes it more attractive to the hacker to use SQL injection.

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