CAS-005: CompTIA SecurityX

The routine reads the user ID and password but then executes an unconditional jump straight to the :ALLOWUSER label, so the credential comparison that follows it is never actually reached before access is granted. Making the credential check and the access-granting logic execute as a single atomic operation prevents this kind of control-flow bypass, whereas the input is already validated by the hash comparison, there is no time-of-check/time-of-use gap involved, and the flaw exists regardless of whether the database connection is encrypted.