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Introduction
Node.js is a powerful and widely-used JavaScript runtime environment for building server-side applications. However, like any other software, Node has its own set of vulnerabilities that can lead to security issues if not properly addressed. Please do note that these vulnerabilities are not unique to Node, they can be found in every backend programming language.
This article will explore 5 common vulnerabilities:
1) Injection Vulnerabilities
Node applications are vulnerable to injection attacks, such as SQL injection, NoSQL injection, and Command Injection. These types of attacks occur when an attacker inputs malicious code into a vulnerable application and the application executes it.
2) Cross-Site Scripting (XSS) Vulnerabilities
XSS attacks allow attackers to inject malicious scripts into web pages viewed by other users. This can result in sensitive information being stolen, such as login credentials or other sensitive data. To prevent XSS attacks, it’s important to sanitize all user-generated data and validate it before sending it to the client.
3) Denial-of-Service (DoS) Vulnerabilities
DoS attacks are designed to overload the server and cause it to crash. This can be done through a variety of methods, such as sending a large number of requests to the server or flooding the server with data.
4) Improper Authentication and Authorization
Improper authentication and authorization can result in unauthorized access to sensitive data, which can lead to theft or damage. To prevent this, it’s important to implement proper authentication and authorization methods, such as using secure passwords and two-factor authentication.
5) Insecure Direct Object References
Just like improper authorization, in insecure direct object references, an attacker can access and manipulate objects directly, bypassing the intended security controls.
