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HIGH · 7.5

CVE-2021-32978

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...

Vulnerability 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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
AutomationdirectC0-10Dd1E-D Firmware< 3.00
AutomationdirectC0-10Dd1E-D-
AutomationdirectC0-10Dd2E-D Firmware< 3.00
AutomationdirectC0-10Dd2E-D-
AutomationdirectC0-10Dre-D Firmware< 3.00
AutomationdirectC0-10Dre-D-
AutomationdirectC0-10Are-D Firmware< 3.00
AutomationdirectC0-10Are-D-
AutomationdirectC0-11Dd1E-D Firmware< 3.00
AutomationdirectC0-11Dd1E-D-
AutomationdirectC0-11Dd2E-D Firmware< 3.00
AutomationdirectC0-11Dd2E-D-
AutomationdirectC0-11Dre-D Firmware< 3.00
AutomationdirectC0-11Dre-D-
AutomationdirectC0-11Are-D Firmware< 3.00
AutomationdirectC0-11Are-D-
AutomationdirectC0-12Dd1E-D Firmware< 3.00
AutomationdirectC0-12Dd1E-D-
AutomationdirectC0-12Dd2E-D Firmware< 3.00
AutomationdirectC0-12Dd2E-D-

Related Weaknesses (CWE)

CWE-522CWE-256

References

FAQ

What is CVE-2021-32978?

CVE-2021-32978 is a vulnerability with a CVSS score of 7.5 (HIGH). 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...

How severe is CVE-2021-32978?

CVE-2021-32978 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-32978?

Check the references section above for vendor advisories and patch information. Affected products include: Automationdirect C0-10Dd1E-D Firmware, Automationdirect C0-10Dd1E-D, Automationdirect C0-10Dd2E-D Firmware, Automationdirect C0-10Dd2E-D, Automationdirect C0-10Dre-D Firmware.