Vulnerability in Automation Direct Click Plc Cpu Modules: C0-1x Cpus
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 unlock Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00.
EPSS: 0.010 (58.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Automation Direct Click Plc Cpu Modules: C0-1x Cpus — versions unspecified
- Automationdirect C0-10are-d
- Automationdirect C0-10are-d_firmware
- Automationdirect C0-10dd1e-d
- Automationdirect C0-10dd1e-d_firmware
- Automationdirect C0-10dd2e-d
- Automationdirect C0-10dd2e-d_firmware
- Automationdirect C0-10dre-d
- Automationdirect C0-10dre-d_firmware
- Automationdirect C0-11are-d
Weakness classification (CWE)
Public proof-of-concept exploits
References
- ics-cert@hq.dhs.gov (x_refsource_CONFIRM, US Government Resource, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-32978?
- CVE-2021-32978 is a high-severity vulnerability in Automation Direct Click Plc Cpu Modules: C0-1x Cpus, classified under Plaintext Storage of a Password. CVSS score: 7.5/10. Published 2022-04-04.
- How severe is CVE-2021-32978?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-32978 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.