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 loginsDumping database contentsModifying or deleting dataEscalating privilegesAccessing admin panels
Common SQLi Targets:
Login formsSearch boxesURL parametersCookiesContact or feedback forms
How to Prevent SQLi:
Use parameterized queriesEmploy ORM frameworksSanitize all user inputsSet least privilege for DB usersUse 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.
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.
Common Entry Points
Use parameterized queries
Image Description (for visual):
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. Another thing to keep in mind: your typical automated vulnerability scanners might completely miss this one due to the pre-auth nature.
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Plus, their command and control chats happen over a Base64-encoded TCP socket.
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With a CVSS score of 7.8, you'll want to jump on this fix ASAP. It impacts versions 11.x.x and 12.x.x, so upgrading to 12.5.1 needs to be right at the top of your list!
