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All they have to do is input the URL of the target site and watch the stolen data roll in.Īnd yet SQLI attacks are commonplace and happen every day. Once they've found a suitable target, SQLI attackers can use automated programs to effectively carry out the attack for them. SQLI attacks are so easy, in fact, attackers can find vulnerable websites using advanced Google searches, called Google Dorking. Malwarebytes Labs ranked SQLI as number three in the The Top 5 Dumbest Cyber Threats that Work Anyway, citing the fact that SQLI is a known, predictable attack with easily implemented countermeasures.

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Target, Yahoo, Zappos, Equifax, Epic Games, TalkTalk, LinkedIn, and Sony Pictures-these companies were all hacked by cybercriminals using SQL injections.Ī SQLI is a type of attack by which cybercriminals exploit software vulnerabilities in web applications for the purpose of stealing, deleting, or modifying data, or gaining administrative control over the systems running the affected applications.Ĭybersecurity researchers regard the SQLI as one of the least sophisticated, easy-to-defend-against cyberthreats.

Do not use system administrator accounts.You may not know what a SQL injection (SQLI) attack is or how it works, but you definitely know about the victims.

Basically, user should not be granted permission to access everything in the database.

Restricting access privileges of users and defining as to how much amount of data any outsider can access from the database.

User Authentication: Validating input from the user by pre-defining length, type of input, of the input field and authenticating the user.

So in-case the hacker is able to exploit SQL injection, the entire server is compromised. Nowadays, all online shopping applications, bank transactions use back-end database servers. It is also possible to delete the user data from the tables. The hacker can retrieve all the user-data present in the database such as user details, credit card information, social security numbers and can also gain access to protected areas like the administrator portal. Since 1=1 always holds true, user data is compromised.

So instead of the above-mentioned query the following query when executed, retrieves protected data, not intended to be shown to users. Now the malicious can use the ‘=’ operator in a clever manner to retrieve private and secure user information. Now the malicious user can also delete the student records in a similar fashion.Ĭonsider the following SQL query. So basically, all the student data is compromised. Now this 1=1 will return all records for which this holds true. So this basically translates to : SELECT * from STUDENT where

Introduction of DBMS (Database Management System) | Set 1Īnd the student enters the following in the input field:.

SQL query to find second highest salary?.

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SQL | Join (Inner, Left, Right and Full Joins).

Commonly asked DBMS interview questions | Set 2.

Commonly asked DBMS interview questions.

Basic SQL Injection and Mitigation with Example.

Making your WordPress Website More Secure.

Step by step guide to make your first WordPress Plugin.

Step by Step guide to Write your own WordPress Template.

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How to make a website using WordPress (Part – 1).

How to make a website using WordPress (Part – 2).

Mitigation of SQL Injection Attack using Prepared Statements (Parameterized Queries).

Command Injection Vulnerability and Mitigation.

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Code Injection and Mitigation with Example.

How to use SQLMAP to test a website for SQL Injection vulnerability.

ISRO CS Syllabus for Scientist/Engineer Exam.

ISRO CS Original Papers and Official Keys.

GATE CS Original Papers and Official Keys.