CVE-2021-27662 - Vulnerability Details - OpenCVE

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

Published: 2021-09-15

Score: 8.6 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Johnson Controls

KT-1

affected

Version	Status	Constraints
`all versions up to and including 3.01`	affected	≤ 3.01

Configuration 1 [-]

AND

cpe:2.3:o:johnsoncontrols:kantech_kt-1_door_controller_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:johnsoncontrols:kantech_kt-1_door_controller:-:*:*:*:*:*:*:*

No data.

No data available yet.

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-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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact High

Availability Impact Low

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.0018.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://us-cert.gov/ics/advisories
https://www.johnsoncontrols.com/cyber-solutions/security-advisories

History

No history.

Subscriptions

Johnsoncontrols Kantech Kt-1 Door Controller Kantech Kt-1 Door Controller Firmware

MITRE

Status: PUBLISHED

Assigner: jci

Published: 2021-09-15T12:04:22.918Z

Updated: 2024-09-17T00:31:51.342Z

Reserved: 2021-02-24T00:00:00.000Z

Link: CVE-2021-27662

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-09-15T13:15:07.800

Modified: 2024-11-21T05:58:24.013

Link: CVE-2021-27662

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-294

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