CVE-2021-32978

Automation Direct CLICK PLC CPU Modules Plaintext Storage of a Password

State: Published
Severity: 7.5 High
Published: Apr 4, 2022
Updated: Apr 16, 2025
Reserved: May 13, 2021

Description

The programming protocol allows for a previously entered password and lock state to be read by an attacker. If the previously entered password was successful, the attacker can then use the password to unlock Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	icscert

Weaknesses

CWE-256 Plaintext Storage of a Password

Affected Products

Product	Versions
CLICK PLC CPU Modules: C0-1x CPUsAutomation Direct	before 3.00Affected

References

https://www.cisa.gov/uscert/ics/advisories/icsa-21-166-02

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