Denial of service in Johnson Controls Metasys and Facility Explorer

1) Resource exhaustion

EUVDB-ID: #VU83988

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-4486

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Metasys Network Automation Engine (NAE55): before 12.0.4

Metasys SNE engines: before 12.0.4

Metasys SNC engines: before 12.0.4

Facility Explorer F4-SNC: before 11.0.6

CPE2.3

• cpe:2.3:h:johnson_controls:metasys_network_automation_engine_nae55:*:*:*:*:*:*:*:*
• cpe:2.3:h:johnson_controls:metasys_sne_engines:*:*:*:*:*:*:*:*
• cpe:2.3:h:johnson_controls:metasys_snc_engines:*:*:*:*:*:*:*:*
• cpe:2.3:h:johnson_controls:facility_explorer_f4-snc:*:*:*:*:*:*:*:*

External links

https://www.johnsoncontrols.com/cyber-solutions/security-advisories
https://www.cisa.gov/news-events/ics-advisories/icsa-23-341-03

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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