CVE-2021-32986 — Automation Direct CLICK PLC CPU Modules Authentication Bypass Using an Alternate Path or Channel

CVE-2021-32986

Automation Direct CLICK PLC CPU Modules Authentication Bypass Using an Alternate Path or Channel PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Automation Direct / CLICK PLC CPU Modules: C0-1x CPUs	affected unspecified before 3.00

CWE

CWE-288

References

https://www.cisa.gov/uscert/ics/advisories/icsa-21-166-02

ADP enrichment

CVE

No English description supplied.

https://www.cisa.gov/uscert/ics/advisories/icsa-21-166-02

CISA-ADP

No English description supplied.

No references supplied.