CVE-2021-32986
Critical
Description
After Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00 is unlocked by an authorized user, the unlocked state does not timeout. If the programming software is interrupted, the PLC remains unlocked. All subsequent programming connections are allowed without authorization. The PLC is only relocked by a power cycle, or when the programming software disconnects correctly.
SeverityCritical
CVSS9.8
Exploit probability—
ProductAutomationdirect C0-10dd1e-d Firmware
PublishedApr 4, 2022
First seenApr 4, 2022
Weakness typeCWE-288CWE-288
How to fix
Update
- automationdirect c0-10dd1e-d_firmware3.00 or later
- automationdirect c0-10dd2e-d_firmware3.00 or later
- automationdirect c0-10dre-d_firmware3.00 or later
- automationdirect c0-10are-d_firmware3.00 or later
- automationdirect c0-11dd1e-d_firmware3.00 or later
- automationdirect c0-11dd2e-d_firmware3.00 or later
- automationdirect c0-11dre-d_firmware3.00 or later
- automationdirect c0-11are-d_firmware3.00 or later
- automationdirect c0-12dd1e-d_firmware3.00 or later
- automationdirect c0-12dd2e-d_firmware3.00 or later
- automationdirect c0-12dre-d_firmware3.00 or later
- automationdirect c0-12are-d_firmware3.00 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| automationdirect c0-10dd1e-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-10dd2e-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-10dre-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-10are-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-11dd1e-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-11dd2e-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-11dre-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-11are-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-12dd1e-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-12dd2e-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-12dre-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-12are-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-12dd1e-1-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-12dd2e-1-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-12dre-1-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-12are-1-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-12dd1e-2-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-12dd2e-2-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-12dre-2-d_firmware | v < 3.00 | 3.00 |
| automationdirect c0-12are-2-d_firmware | v < 3.00 | 3.00 |
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