If the page loads successfully, the database schema name is exactly 5 characters long. Step 2: Guess the Table and Column Names
The login form is vulnerable to SQL injection, but error-based and union-based attacks are blocked. The underlying query likely looks like:
When using prepared statements, even if an attacker passes ' OR SLEEP(5) -- , the database simply searches for a literal string matching that entire payload, rendering the attack completely harmless. To help tailor this guide, let me know:
The Security Shepherd, an OWASP flagship project, is a web and mobile application security training platform used worldwide. It presents users with a series of lessons and challenges that mirror common security flaws found in the OWASP Top 10 list, such as Cross-Site Scripting (XSS), Broken Authentication, and, of course, SQL Injection. Sql Injection Challenge 5 Security Shepherd
Completing SQL Injection Challenge 5 provides several valuable takeaways:
The backend code likely uses a function that replaces single quotes ( ' ) with backslash-escaped quotes ( \' ).
Try injecting the following payloads to test for column count using the ORDER BY technique: If the page loads successfully, the database schema
SQL Injection Challenge 5 from Security Shepherd is a web-app training exercise that demonstrates a common but subtle SQL injection pattern: blind inference attacks against application logic that uses dynamic queries and insufficient input handling. The goal of this write-up is to explain the challenge’s likely design, the vulnerability class it teaches, the exploitation methodology, and remediation strategies developers can apply.
You'll need a web browser and, optionally, a tool like Burp Suite to intercept and modify HTTP requests. Burp Suite is particularly useful for seeing the exact structure of the request and for experimenting with different payloads quickly.
SELECT * FROM customers WHERE customerId="1" OR "1"="1"; To help tailor this guide, let me know:
SELECT coupon_code FROM coupons WHERE coupon_code = 'USER_INPUT'; Use code with caution. 2. Test the Sanitization Filter
: A clear breakdown of different SQLi types, explaining how "classic" tautology injections like the one in this challenge exploit unsanitized inputs.
What is your backend project using for remediation? Share public link