CVE-2021-32986

CRITICAL

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/4/2022

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

automationdirect:c0-10are-dautomationdirect:c0-10are-d_firmwareautomationdirect:c0-10dd1e-dautomationdirect:c0-10dd1e-d_firmwareautomationdirect:c0-10dd2e-dautomationdirect:c0-10dd2e-d_firmwareautomationdirect:c0-10dre-dautomationdirect:c0-10dre-d_firmwareautomationdirect:c0-11are-dautomationdirect:c0-11are-d_firmwareautomationdirect:c0-11dd1e-dautomationdirect:c0-11dd1e-d_firmwareautomationdirect:c0-11dd2e-dautomationdirect:c0-11dd2e-d_firmwareautomationdirect:c0-11dre-dautomationdirect:c0-11dre-d_firmwareautomationdirect:c0-12are-1-dautomationdirect:c0-12are-1-d_firmwareautomationdirect:c0-12are-2-dautomationdirect:c0-12are-2-d_firmwareautomationdirect:c0-12are-dautomationdirect:c0-12are-d_firmwareautomationdirect:c0-12dd1e-1-dautomationdirect:c0-12dd1e-1-d_firmwareautomationdirect:c0-12dd1e-2-dautomationdirect:c0-12dd1e-2-d_firmwareautomationdirect:c0-12dd1e-dautomationdirect:c0-12dd1e-d_firmwareautomationdirect:c0-12dd2e-1-dautomationdirect:c0-12dd2e-1-d_firmwareautomationdirect:c0-12dd2e-2-dautomationdirect:c0-12dd2e-2-d_firmwareautomationdirect:c0-12dd2e-dautomationdirect:c0-12dd2e-d_firmwareautomationdirect:c0-12dre-1-dautomationdirect:c0-12dre-1-d_firmwareautomationdirect:c0-12dre-2-dautomationdirect:c0-12dre-2-d_firmwareautomationdirect:c0-12dre-dautomationdirect:c0-12dre-d_firmware

Weaknesses (CWE)

CWE-288CWE-863

References

https://www.cisa.gov/uscert/ics/advisories/icsa-21-166-02(ics-cert@hq.dhs.gov)

https://www.cisa.gov/uscert/ics/advisories/icsa-21-166-02(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.