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JciCVE-2021-27662

HistorySep 15, 2021 - 1:15 p.m.

CVE-2021-27662

2021-09-1513:15:07

CWE-294

jci

web.nvd.nist.gov

kt-1

door controller

vulnerability

replay attack

nvd

cve-2021-27662

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

AI Score

7.9

Confidence

High

EPSS

0.002

Percentile

52.5%

JSON

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

Affected configurations

Nvd

Node

johnsoncontrolskantech_kt-1_door_controller_firmwareRange≤3.01

AND

johnsoncontrolskantech_kt-1_door_controllerMatch-

VendorProductVersionCPE
johnsoncontrolskantech_kt-1_door_controller_firmware*cpe:2.3:o:johnsoncontrols:kantech_kt-1_door_controller_firmware:*:*:*:*:*:*:*:*
johnsoncontrolskantech_kt-1_door_controller-cpe:2.3:h:johnsoncontrols:kantech_kt-1_door_controller:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
johnsoncontrols	kantech_kt-1_door_controller_firmware	*	cpe:2.3:o:johnsoncontrols:kantech_kt-1_door_controller_firmware::::::::
johnsoncontrols	kantech_kt-1_door_controller	-	cpe:2.3:h:johnsoncontrols:kantech_kt-1_door_controller:-:::::::*

CNA Affected

[
  {
    "product": "KT-1",
    "vendor": "Johnson Controls",
    "versions": [
      {
        "lessThanOrEqual": "3.01",
        "status": "affected",
        "version": "all versions up to and including 3.01",
        "versionType": "custom"
      }
    ]
  }
]

References

us-cert.gov/ics/advisories

www.johnsoncontrols.com/cyber-solutions/security-advisories

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

AI Score

7.9

Confidence

High

EPSS

0.002

Percentile

52.5%

JSON

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