SQL Injection Protection

Overview

SQL Injection is a code injection technique that exploits vulnerabilities in an application’s software by manipulating SQL queries.

Django’s Protection Mechanisms

• ORM (Object-Relational Mapping): Django’s ORM automatically escapes parameters used in queries, preventing SQL injection.
• Parameterized Queries: Always use parameterized queries to avoid injecting raw SQL.

Example

# Vulnerable code
user = User.objects.raw("SELECT * FROM auth_user WHERE username = '%s'" % username)

# Safe code using ORM
user = User.objects.get(username=username)

Best Practices

• Avoid using raw() for SQL queries.
• Use Django’s ORM to interact with the database securely.