Sql Injection Challenge 5 Security Shepherd 🎁 Ultimate

This payload causes the SQL query to look like WHERE username='admin\' AND password=' OR 1=1; --' . The backslash escapes the single quote after admin , effectively commenting out the password check.

The application will execute the query. Instead of showing the search results for the original query, it will inject the result of our second query. The password (or flag) for the Admin user will appear in the spot where the username or other data is usually displayed on the webpage.

This payload injects a conditional statement that checks the version of the database. If the version starts with '5', the query will sleep for 5 seconds.

Note: We use numbers 1 and 3 as placeholders for the columns we don't care about seeing. Sql Injection Challenge 5 Security Shepherd

If manual injection is difficult, you can automate the process using Intercept Request Burp Suite to capture the POST request for the challenge. Run sqlmap : Execute the following command in your terminal:

To help you get through this specific level, could you tell me: What do you get when you submit a single quote? Are you seeing a login box or a search field ?

to escape the application's own escaping mechanism or to manipulate how the query interprets the next character. This payload causes the SQL query to look

for position in range(1, key_length + 1): for ascii_code in range(32, 127): # Printable ASCII payload = f"ASCII(SUBSTRING((SELECT column_name FROM table_name WHERE row_condition), position, 1)) = ascii_code" if test_payload(payload): char = chr(ascii_code) target_string += char print(f"[*] Position position: char -> target_string") break

If this fails due to email validation, we need to make the payload smarter. The goal is to manipulate the query without violating the structure expected by the backend validation, for instance, 1@1.1' AND '1'='1 or breaking the query within the string quotes. Step 3: Exploiting the Coupon Code Field

import requests import string

Whitelist allowable characters. If a username should only be alphanumeric, reject input containing ' , - , or spaces.

The Java source code for this challenge reveals how the query is constructed: