CVE-2021-32978
Last modified
CVE-2021-32978 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.97% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Automationdirect | C0-10dd1e-D Firmware | < 3.00 |
| Automationdirect | C0-10dd2e-D Firmware | < 3.00 |
| Automationdirect | C0-10dre-D Firmware | < 3.00 |
| Automationdirect | C0-10are-D Firmware | < 3.00 |
| Automationdirect | C0-11dd1e-D Firmware | < 3.00 |
| Automationdirect | C0-11dd2e-D Firmware | < 3.00 |
| Automationdirect | C0-11dre-D Firmware | < 3.00 |
| Automationdirect | C0-11are-D Firmware | < 3.00 |
| Automationdirect | C0-12dd1e-D Firmware | < 3.00 |
| Automationdirect | C0-12dd2e-D Firmware | < 3.00 |
| Automationdirect | C0-12dre-D Firmware | < 3.00 |
| Automationdirect | C0-12are-D Firmware | < 3.00 |
| Automationdirect | C0-12dd1e-1-D Firmware | < 3.00 |
| Automationdirect | C0-12dd2e-1-D Firmware | < 3.00 |
| Automationdirect | C0-12dre-1-D Firmware | < 3.00 |
| Automationdirect | C0-12are-1-D Firmware | < 3.00 |
| Automationdirect | C0-12dd1e-2-D Firmware | < 3.00 |
| Automationdirect | C0-12dd2e-2-D Firmware | < 3.00 |
| Automationdirect | C0-12dre-2-D Firmware | < 3.00 |
| Automationdirect | C0-12are-2-D Firmware | < 3.00 |
References
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-166-02Third Party Advisory, US Government Resource
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-166-02Third Party Advisory, US Government Resource
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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