CVE-2021-27662

KT-1 Capture-replay

Published Sep 15, 2021 CVSS 3.1 · 8.6 High EPSS < 1% KEV · Not listed
Description
The KT-1 door controller is susceptible to replay or man-in-the-middle attacks where an attacker can record and replay TCP packets. This issue affects Johnson Controls KT-1 all versions up to and including 3.01

Remediation

Vendor Solution

Upgrade the KT-1 controller to version 3.04 and upgrade EntraPass to version 8.40.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-14408 The KT-1 door controller is susceptible to replay or man-in-the-middle attacks where an attacker can record and replay TCP packets. This issue affects Johnson Controls KT-1 all versions up to and including 3.01
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
jci
Published
Updated
Sep 17, 2024, 12:31 AM
Reserved
Feb 24, 2021, 12:00 AM
Status
Modified
Published
Sep 15, 2021, 1:15 PM
Modified
Jun 17, 2026, 3:45 AM