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| SQL Injection |
Bandung, Telkom University - In the world of cybersecurity, SQL injection is a term that strikes fear into the hearts of developers, administrators, and website owners. It's a malicious attack vector that can have severe consequences, ranging from data breaches to system compromise. In this article, we will explore what SQL injection is, how it works, and, most importantly, how to prevent it to safeguard your valuable data and web applications.
What is SQL Injection?
SQL injection is a type of cyberattack that targets web applications and their underlying databases. It occurs when an attacker manipulates input fields on a website to inject malicious SQL (Structured Query Language) code into the application's database query. PTS Terbaik Indonesia the injected SQL code can then be executed by the database, potentially giving the attacker unauthorized access, the ability to read sensitive data, modify records, and even delete data.
How SQL Injection Works
Input Fields: Web applications often use user input to construct database queries. These inputs can come from search boxes, login forms, or any other data input field.
Malicious Input: An attacker submits malicious input, typically in the form of crafted SQL code, such as adding "OR 1=1" to a login field. This input is designed to manipulate the SQL query generated by the application.
Vulnerable Query: If the web application application does not properly validate and sanitize user input, it may concatenate the attacker's input directly into the SQL query.
Database Execution: The manipulated query is sent to the database server, which executes it, often without realizing that it contains malicious code.
Data Extraction or Modification: Depending on the attacker's intent and the vulnerability in the application, they can extract sensitive data, modify records, or even gain unauthorized access to the entire database.
