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.

Everything About SQL Injection

What is SQL Injection?
SQL Injection is a web vulnerability that lets attackers manipulate database queries. This can lead to unauthorized access, data leaks, or even full control of the system.

Types of SQL Injection

Classic SQLi – Injecting raw SQL commands.
Blind SQLi – No errors, but the response changes.
Time-Based SQLi – Uses response delays to extract data.
Union-Based SQLi – Merges malicious queries with valid ones.
Out-of-Band SQLi – Exfiltrates data through DNS, HTTP, etc.

Potential Impact
Access & dump sensitive data
Bypass login systems
Alter or delete database entries
Full system compromise

Common Entry Points
Login forms
Search inputs
Contact forms
URL query parameters

Defense Strategies
Use parameterized queries
Validate & sanitize inputs
Apply least privilege to DB accounts
Monitor logs for anomalies
Perform regular security audits

Image Description (for visual):
A sleek cyber-themed layout with:
A hacker icon injecting code
A login form being exploited
Database icons showing exposed data
A shield labeled “Prepared Statements” blocking the attack

Tags
#SQLInjection #CyberSecurity #EthicalHacking #WebSecurity #BugBounty #InfoSec #Pentesting #OWASP #DatabaseSecurity #HackerTips

Disclaimer
This content is for educational and ethical purposes only. Do not attempt to exploit vulnerabilities without proper authorization. Always follow legal and ethical guidelines when testing or learning about cybersecurity.