Vulnerability identifier: #VU53993

Vulnerability risk: Medium

CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2021-27657

CWE-ID: CWE-269

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Metasys System
Universal components / Libraries / Software for developers

Vendor: Johnson Controls

Description

The vulnerability allows a remote attacker to escalate privileges.

The vulnerability exists due to Metasys servers, engines and tools do not properly assign, modify, track or check privileges for an actor. A remote authenticated attacker can escalate privileges.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Metasys System: 11.0

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External links
http://www.johnsoncontrols.com/cyber-solutions/security-advisories
http://us-cert.cisa.gov/ics/advisories/icsa-21-159-01

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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.