ASPECT is an award-winning scalable building energy management and control solution designed to allow users seamless access to their building data through standard building protocols including smart devices.
The ABB Cylon Aspect BAS controller allows login using guest:guest, which initiates a web session but restricts access to administrative features by returning an 'Invalid Admin Username and/or Password' message. However, the session is still active and valid within the HMI environment. Despite failed privilege validation in the login flow, direct navigation to /setup.php bypasses authentication and authorization controls entirely. This endpoint serves as the administrative dashboard and allows full configuration access, including the ability to change credentials for the privileged aamuser account. This flaw results in privilege escalation from a limited guest session to full administrative control, compromising the integrity of the system.