SQL Injection

Manipulate database queries. Extract data. Execute commands. OWASP Top 10 #1 vulnerability.

IntermediateInteractive Dual Perspective

SQL Injection

#1 on OWASP Top 10 - Database Exploitation

Requires: Web application access • Difficulty: Low • Impact: Critical

💻 Desktop Experience Available

View this module on desktop for an interactive SQL Injection exploitation simulation.

SQL Injection (SQLi) is a web application vulnerability that occurs when untrusted user input is directly concatenated into SQL queries without proper sanitization. Attackers can inject malicious SQL code to manipulate database queries, extract sensitive data, and even execute operating system commands on the database server.

How SQL Injection Works (Vulnerable Code):

$query = "SELECT * FROM users WHERE username = '" . $_GET["username"] . "'";

User input is directly concatenated into SQL query. No validation or parameterization.

If user enters: admin' OR '1'='1

SELECT * FROM users WHERE username = 'admin' OR '1'='1'

This returns all users because '1'='1' is always true.

Attack Impact:

• Data Extraction: Dump entire databases, including passwords, credit cards, PII
• Authentication Bypass: Login without valid credentials
• Privilege Escalation: Gain admin access to application
• OS Command Execution: Execute commands on database server (if privileged)
• Data Manipulation: Modify or delete data

Why It's Still #1 on OWASP Top 10: Despite being known since 1998, SQL injection remains the most common web vulnerability. Many developers still use string concatenation instead of parameterized queries. Legacy applications often have SQLi vulnerabilities that are difficult to fix.

Legal & Ethical Warning

SQL Injection techniques should only be used in authorized penetration testing, bug bounty programs, or controlled lab environments. Unauthorized access to databases is illegal under CFAA and equivalent laws worldwide. Always obtain written permission before testing.

Loading Theory...

SQL Injection Lab

Interactive Database Exploitation // OWASP Top 10 #1

Attack Console

Ready to Attack

Vulnerable Parameter (User ID):

Backend: SELECT * FROM users WHERE id = '1'

ATTACK_LOG

SQLMAP AUTOMATION SUITE v1.7.3

TARGET: http://internal-db.corp.local/login.php

Ready to begin SQL injection attack...

Backend Query Inspector

// Executed on Server

SELECT * FROM users WHERE id = '1'

Database Schema & Data

Database LockedStart attack to enumerate structure

SQL Injection Attack Chain

Test Vulnerability:

Inject payloads to confirm SQL injection exists

Enumerate Structure:

Discover databases, tables, and columns

Extract Data:

Retrieve sensitive information from database

Exfiltrate:

Export compromised data for further attacks

OPSEC: Training Environment Only

SQL Injection is illegal without authorization. This simulation is for educational purposes. Never test SQL injection on systems you don't own. OWASP Top 10 #1 vulnerability.

Loading Simulation...

SQL Injection

#1 on OWASP Top 10 - Database Exploitation

Requires: Web application access • Difficulty: Low • Impact: Critical

💻 Desktop Experience Available

View this module on desktop for an interactive SQL Injection exploitation simulation.

How SQL Injection Works (Vulnerable Code):

$query = "SELECT * FROM users WHERE username = '" . $_GET["username"] . "'";

User input is directly concatenated into SQL query. No validation or parameterization.

If user enters: admin' OR '1'='1

SELECT * FROM users WHERE username = 'admin' OR '1'='1'

This returns all users because '1'='1' is always true.

Attack Impact:

• Data Extraction: Dump entire databases, including passwords, credit cards, PII
• Authentication Bypass: Login without valid credentials
• Privilege Escalation: Gain admin access to application
• OS Command Execution: Execute commands on database server (if privileged)
• Data Manipulation: Modify or delete data

Legal & Ethical Warning

SQL Injection Lab

Interactive Database Exploitation // OWASP Top 10 #1

Attack Console

Ready to Attack

Vulnerable Parameter (User ID):

Backend: SELECT * FROM users WHERE id = '1'

ATTACK_LOG

SQLMAP AUTOMATION SUITE v1.7.3

TARGET: http://internal-db.corp.local/login.php

Ready to begin SQL injection attack...

Backend Query Inspector

// Executed on Server

SELECT * FROM users WHERE id = '1'

Database Schema & Data

Database LockedStart attack to enumerate structure

SQL Injection Attack Chain

Test Vulnerability:

Inject payloads to confirm SQL injection exists

Enumerate Structure:

Discover databases, tables, and columns

Extract Data:

Retrieve sensitive information from database

Exfiltrate:

Export compromised data for further attacks

OPSEC: Training Environment Only

SQL Injection is illegal without authorization. This simulation is for educational purposes. Never test SQL injection on systems you don't own. OWASP Top 10 #1 vulnerability.

SQL Injection

Theory & Documentation

SQL Injection

How SQL Injection Works (Vulnerable Code):

Attack Impact:

Legal & Ethical Warning

SQL Injection Lab

Attack Console

SQL Injection Attack Chain

SQL Injection

How SQL Injection Works (Vulnerable Code):

Attack Impact:

Legal & Ethical Warning

SQL Injection Lab

Attack Console

SQL Injection Attack Chain