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JciCVE-2021-27661

HistoryJul 01, 2021 - 2:15 p.m.

CVE-2021-27661

2021-07-0114:15:07

CWE-269

CWE-863

jci

web.nvd.nist.gov

cve-2021-27661

facility explorer

snc series

supervisory controller

file system

unauthorized access

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.4

Confidence

High

EPSS

0.001

Percentile

42.8%

JSON

Successful exploitation of this vulnerability could give an authenticated Facility Explorer SNC Series Supervisory Controller (F4-SNC) user an unintended level of access to the controller’s file system, allowing them to access or modify system files by sending specifically crafted web messages to the F4-SNC.

Affected configurations

Nvd

Node

johnsoncontrolsf4-snc_firmwareMatch11

AND

johnsoncontrolsf4-sncMatch-

VendorProductVersionCPE
johnsoncontrolsf4-snc_firmware11cpe:2.3:o:johnsoncontrols:f4-snc_firmware:11:*:*:*:*:*:*:*
johnsoncontrolsf4-snc-cpe:2.3:h:johnsoncontrols:f4-snc:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
johnsoncontrols	f4-snc_firmware	11	cpe:2.3:o:johnsoncontrols:f4-snc_firmware:11:::::::*
johnsoncontrols	f4-snc	-	cpe:2.3:h:johnsoncontrols:f4-snc:-:::::::*

CNA Affected

[
  {
    "product": "Facility Explorer SNC Series Supervisory Controllers (F4-SNC)",
    "vendor": "Johnson Controls",
    "versions": [
      {
        "status": "affected",
        "version": "Facility Explorer SNC Series Supervisory Controllers version 11 11"
      }
    ]
  }
]

References

us-cert.cisa.gov/ics/advisories/icsa-21-182-01

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

Social References

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.4

Confidence

High

EPSS

0.001

Percentile

42.8%

JSON

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