CVE-2021-32978

Automation Direct CLICK PLC CPU Modules Plaintext Storage of a Password

Published Apr 4, 2022 CVSS 3.1 · 7.5 High EPSS 1.0% KEV · Not listed
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.

Remediation

Vendor Solution

Automation Direct reports these vulnerabilities are all mitigated by Version 3.00 and recommends users update software and firmware to the latest version. Automation Direct also recommends users follow its security guidelines.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-19699 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.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Apr 16, 2025, 4:31 PM
Reserved
May 13, 2021, 12:00 AM
Status
Modified
Published
Apr 4, 2022, 8:15 PM
Modified
Jun 17, 2026, 3:53 AM