CVE-2021-32984

high-risk
Published 2022-04-04

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.

Do I need to act?

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0.29% 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
9
CVSS 9.8/10 Critical
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
53
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 1/34 · Minimal
Exposure 20/34 · Moderate