The SQL injection module of Security Shepherd is a multi-level gauntlet. It starts with the absolute basics—like classic authentication bypasses—and rapidly increases in difficulty. Each challenge introduces a new type of filter, a different injection technique, or a more complex backend query. By the time you reach Challenge 5, you'll have moved far beyond simple payloads, and you'll be thinking about how to manipulate the very logic of the application's code.
Suggested mitigations
While not foolproof on their own, stored procedures can help when used correctly. They should still use parameterized queries internally. Sql Injection Challenge 5 Security Shepherd
In Challenge 5, simply logging in or seeing a list of users isn't enough. You often need the password of the "Admin" user, but the application likely does not display the password column in the HTML output. It might only show the username and perhaps a role .
If the challenge uses a single quote filter, you may need to use hex encoding: FROM administrators WHERE admin_user=0x61646d696e (hex for 'admin') The SQL injection module of Security Shepherd is
Let's see how this works in practice. Consider an input of " OR ""=" in the password field. The backend query becomes:
String query = "SELECT * FROM users WHERE username = ?"; PreparedStatement pstmt = connection.prepareStatement(query); pstmt.setString(1, userInput); // Safe parameterization ResultSet resultSet = pstmt.executeQuery(); Use code with caution. 2. Implement the Principle of Least Privilege By the time you reach Challenge 5, you'll
You can now submit this key to the Shepherd to complete the challenge.
Not all Security Shepherd deployments are identical. Some variations of Challenge 5 include:
If response: "Valid" -> It's 'a'. If "Invalid" -> Move to 98 ('b'), or adjust range.