CodeInjectionAssigment/README.md

Secure Software Development Code Injection and XSS practices

This project is with aiming to help developers understand and mitigate code injection and cross-site scripting (XSS) vulnerabilities in their applications. It provides best practices, examples, and tools to enhance the security of software development.

Project Structure

. ├── backend │   └── src │   ├── api │   │   ├── controller │   │   │   ├── controller.js │   │   │   └── secureController.js │   │   └── network │   │   ├── network.js │   │   └── secureNetwork.js │   ├── config │   │   └── config.js │   ├── index.js │   ├── query │   │   ├── database.js │   │   └── secureDatabase.js │   └── routes │   └── routes.js ├── frontend │   ├── index.html │   ├── src │   │   ├── api │   │   │   ├── auth.ts │   │   │   └── playground.ts │   │   ├── App.tsx │   │   ├── assets │   │   │   └── logo.png │   │   ├── components │   │   │   ├── atoms │   │   │   │   ├── InputField.tsx │   │   │   │   ├── PasswordField.tsx │   │   │   │   └── SubmitButton.tsx │   │   │   ├── molecules │   │   │   │   ├── EvalPlayground.tsx │   │   │   │   └── LoginFormFields.tsx │   │   │   ├── organisms │   │   │   │   └── LoginForm.tsx │   │   │   └── pages │   │   │   ├── CodePlayground.tsx │   │   │   ├── Header.tsx │   │   │   └── Login.tsx │   │   ├── constants │   │   │   └── app.ts │   │   ├── interfaces │   │   │   ├── auth.ts │   │   │   └── playground.ts │   │   ├── main.tsx │   │   ├── styles │   │   │   ├── App.module.scss │   │   │   ├── Header.module.scss │   │   │   └── Login.module.scss └── └── └── vite-env.d.ts

Endpoints

The backend exposes the following endpoints:

Method	Endpoint	Description
GET	/	Home endpoint
POST	/api/login	SQL Injection vulnerable login endpoint
POST	/api/secure/login	Secure login endpoint preventing SQL Injection
POST	/api/execute	eval() vulnerable code execution endpoint
POST	/api/secure/execute	Secure code execution endpoint preventing code injection

Getting Started

Prerequisites

• Node.js
• npm or yarn
• A database (PostgreSQL)

Installation

1. Clone the repository:

   git clone https://github.com/CarGDev/CodeInjectionAssigment
    cd CodeInjectionAssigment
   

2. Install backend dependencies:

   cd backend
   npm install
   

3. Install frontend dependencies:

   cd ../frontend
   npm install
   

Running the Application

1. Start the backend server:

   cd backend
   npm run dev
   

2. Start the frontend development server:

    cd ../frontend
    npm run dev
   

3. Open your browser and navigate to http://localhost:5173 to access the application.

Security Practices

The project implements the following security practices to mitigate code injection and XSS vulnerabilities:

• Parameterized Queries: All database queries use parameterized statements to prevent SQL injection attacks.
• Input Validation and Sanitization: User inputs are validated and sanitized to ensure they do not contain malicious code.
• Avoiding eval(): The playground feature is sanitized to prevent the execution of arbitrary code.