Honeywell Trend Controls Inter-Controller Protocol
Several Trend Controls IQ Series building automation controllers utilize an Inter-Controller (IC) protocol that uses a 4-digit authentication PIN transmitted in plaintext, allowing usernames and passwords to be transmitted in plaintext when utilizing unsupported legacy versions of the controller. This may allow an attacker with local OT network access to obtain these credentials.CVE-2022-30312 has been assigned to this vulnerability. A CVSS v3 base score of 7.1 has been assigned; the CVSS vector string is (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N).