Welcome to the Secure Coding Guide! This tutorial is designed to help developers write secure code that is resistant to common vulnerabilities. Whether you are new to coding or a seasoned professional, this guide will provide you with the knowledge and best practices to create more secure applications.

Common Security Vulnerabilities

Here are some of the most common security vulnerabilities that developers should be aware of:

  • SQL Injection: This occurs when malicious SQL code is inserted into a SQL query via the application.
  • Cross-Site Scripting (XSS): This vulnerability allows attackers to inject malicious scripts into web pages viewed by other users.
  • Cross-Site Request Forgery (CSRF): This attack forces an end user to execute unwanted actions on a web application in which they are currently authenticated.
  • Buffer Overflow: This occurs when a program writes data past the end, or beyond the bounds, of a buffer, causing memory corruption.

Best Practices

To help prevent these vulnerabilities, follow these best practices:

  • Use Prepared Statements: This helps prevent SQL injection by separating the code from the data.
  • Validate Input: Always validate user input to ensure it meets the expected format and type.
  • Sanitize Output: Encode output to prevent XSS attacks.
  • Implement CSRF Tokens: This helps prevent CSRF attacks by requiring a unique token for each request.
  • Use Secure Functions: Use functions that have been designed to prevent buffer overflows, such as strncpy() instead of strcpy().

Learn More

For more information on secure coding, check out our Introduction to Secure Coding tutorial.

Secure Coding

By following these guidelines and best practices, you can significantly reduce the risk of security vulnerabilities in your applications. Happy coding!