CVE-2021-32978

moderate-risk
Published 2022-04-04

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.

Do I need to act?

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0.22% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (20)

C0-10Dd1E-D Firmware
C0-10Dd2E-D Firmware
C0-10Dre-D Firmware
C0-10Are-D Firmware
C0-11Dd1E-D Firmware
C0-11Dd2E-D Firmware
C0-11Dre-D Firmware
C0-11Are-D Firmware
C0-12Dd1E-D Firmware
C0-12Dd2E-D Firmware
C0-12Dre-D Firmware
C0-12Are-D Firmware
C0-12Dd1E-1-D Firmware
C0-12Dd2E-1-D Firmware
C0-12Dre-1-D Firmware
C0-12Are-1-D Firmware
C0-12Dd1E-2-D Firmware
C0-12Dd2E-2-D Firmware
C0-12Dre-2-D Firmware
C0-12Are-2-D Firmware

Affected Vendors

Automationdirect

References (2)

Third Party Advisory https://www.cisa.gov/uscert/ics/advisories/icsa-21-166-02
Third Party Advisory https://www.cisa.gov/uscert/ics/advisories/icsa-21-166-02
47
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 1/34 · Minimal
Exposure 20/34 · Moderate