CVE-2024-32752

Johnson Controls Software House iSTAR Configuration Utility (ICU) Tool

Published Jun 6, 2024 CVSS 4.0 · 8.8 High EPSS < 1% KEV · Not listed
Description
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

Remediation

Vendor Solution

• 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.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-30539 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
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00211}

epss

{'score': 0.00212}

Type Values Removed Values Added
First Time appeared Johnsoncontrols
Johnsoncontrols icu
Johnsoncontrols software House Istar Pro Door Controller
CPEs cpe:2.3:h:johnsoncontrols:icu:*:*:*:*:*:*:*:*
cpe:2.3:h:johnsoncontrols:software_house_istar_pro_door_controller:*:*:*:*:*:*:*:*
Vendors & Products Johnsoncontrols
Johnsoncontrols icu
Johnsoncontrols software House Istar Pro Door Controller
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Under certain circumstances communications between the ICU tool and an iSTAR Pro door controller is susceptible to Machine-in-the-Middle attacks which could impact door control and configuration. 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
Title Johnson Controls Software House iStar Pro Door Controller Johnson Controls Software House iSTAR Configuration Utility (ICU) Tool
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
jci
Published
Updated
Apr 24, 2025, 8:05 PM
Reserved
Apr 17, 2024, 5:26 PM
Status
Deferred
Published
Jun 6, 2024, 9:15 PM
Modified
Jun 17, 2026, 7:30 AM