SQL Injection (SQLi) – Everything You Need to Know

What is SQL Injection?
SQL Injection is a code injection technique that allows attackers to interfere with the queries an application makes to its database.

Types of SQLi:

1. In-band SQLi – Most common and easy to exploit.

2. Blind SQLi – Data isn’t visibly returned but can still be extracted through inference.

3. Out-of-band SQLi – Uses external servers to get results (less common but powerful).

4. Time-Based Blind SQLi – Server delay used to infer info from the database.

Attack Scenarios:
Bypassing logins
Dumping database contents
Modifying or deleting data
Escalating privileges
Accessing admin panels

Common SQLi Targets:
Login forms
Search boxes
URL parameters
Cookies
Contact or feedback forms

How to Prevent SQLi:
Use parameterized queries
Employ ORM frameworks
Sanitize all user inputs
Set least privilege for DB users
Use Web Application Firewalls (WAF)

Red Team Tip
Test all user input points, especially where data touches the database. Think beyond login forms—SQLi hides in unexpected places.

Hashtags:
#SQLInjection #CyberSecurity #EthicalHacking #InfoSec #WebSecurity #RedTeam #BugBounty #Pentesting

Disclaimer:
This content is for educational purposes only. Always perform security testing with explicit permission. Unauthorized testing is illegal and unethical.