CVE-2021-32984
Last modified
CVE-2021-32984 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. All programming connections receive the same unlocked privileges, which can result in a privilege escalation. During the time Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00 is unlocked by an authorized user, an attacker can connect to the PLC and read the project without authorization.. EPSS estimates a 1.07% chance of exploitation in the next 30 days.
Description
All programming connections receive the same unlocked privileges, which can result in a privilege escalation. During the time Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00 is unlocked by an authorized user, an attacker can connect to the PLC and read the project without authorization.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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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