Johnson Controls Software House iSTAR Configuration Utility (ICU) Tool
The iSTAR door controllers running firmware prior to version 6.6.B, does not support authenticated
communications with ICU, which may allow an attacker to gain unauthorized access
• Replace the iSTAR Pro, Edge and eX door controllers with a current generation iSTAR door controller (such
as iSTAR Ultra G2) which supports authentication and prevents the ICU from making configuration
changes.
• Ensure your iSTAR Ultra and Ultra LT door controllers are running firmware 6.6.B or greater.