Welcome to the Web Security Deep Dive guide! This page explores advanced techniques and concepts to secure your web applications. Let's start with the essentials:

🔐 Common Web Vulnerabilities

  • SQL Injection 🐍
    Attackers exploit input fields to execute malicious SQL queries. Always use parameterized statements or ORM tools to prevent this.

  • Cross-Site Scripting (XSS) 🧑💻
    Malicious scripts are injected into trusted websites. Sanitize user inputs and use Content Security Policy (CSP) headers to mitigate risks.

  • Insecure Authentication ⚠️
    Weak password policies or lack of 2FA can lead to unauthorized access. Implement OAuth 2.0 and enforce strong session management.

🛡️ Defense Strategies

  • Input Validation 📜
    Ensure all user inputs meet expected formats. Use regex and whitelists to filter data.

  • Regular Updates 🔄
    Keep dependencies and frameworks up-to-date to patch known vulnerabilities. Tools like npm audit can help.

  • Security Headers 📡
    Enable Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options to enhance browser security.

🧰 Recommended Tools

  • OWASP ZAP 🛠️
    A powerful tool for automated scanning and manual testing of web apps.

  • Burp Suite 🧪
    Ideal for intercepting and modifying HTTP requests during security assessments.

  • Snyk 🔍
    Integrates with CI/CD pipelines to detect vulnerabilities in code.

For a deeper understanding of foundational concepts, check out our Web Security Basics guide.

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Stay curious and keep securing! 🌐🔑