Missing Authentication for Critical Function in Johnson Controls Metasys ADS, ADX, OAS

1) Missing Authentication for Critical Function

EUVDB-ID: #VU65738

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-36200

CWE-ID: CWE-306 - Missing Authentication for Critical Function

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to missing authentication for critical function. A remote attacker can access the Metasys ADS/ADX/OAS web API and enumerate users.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Metasys ADS: 10 - 11

Metasys ADX: 10 - 11

Metasys Open Application Server (OAS): 10 - 11

CPE2.3

• cpe:2.3:a:johnson_controls:metasys_ads:10:*:*:*:*:*:*:*
• cpe:2.3:a:johnson_controls:metasys_ads:11:*:*:*:*:*:*:*
• cpe:2.3:a:johnson_controls:metasys_adx:10:*:*:*:*:*:*:*
• cpe:2.3:a:johnson_controls:metasys_adx:11:*:*:*:*:*:*:*
• cpe:2.3:a:johnson_controls:metasys_open_application_server_oas:10:*:*:*:*:*:*:*
• cpe:2.3:a:johnson_controls:metasys_open_application_server_oas:11:*:*:*:*:*:*:*

External links

https://www.johnsoncontrols.com/cyber-solutions/security-advisories
https://www.cisa.gov/uscert/ics/advisories/icsa-22-202-02

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.