Improper Privilege Management in Johnson Controls Facility Explorer

1) Improper Privilege Management

EUVDB-ID: #VU54509

Risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-27661

CWE-ID: CWE-269 - Improper Privilege Management

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges.

The vulnerability exists due to improper privilege management. A remote authenticated attacker can send specially crafted web messages and access or modify system files.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Facility Explorer SNC Series Supervisory Controller: 11

External links

http://us-cert.gov/ics/advisories
http://www.johnsoncontrols.com/cyber-solutions/security-advisories

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.