CVE-2021-32978 (GCVE-0-2021-32978)

Vulnerability from cvelistv5 – Published: 2022-04-04 19:45 – Updated: 2025-04-16 16:31
VLAI
Title
Automation Direct CLICK PLC CPU Modules Plaintext Storage of a Password
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-16 15:57 UTC
CWE
  • CWE-256 - Plaintext Storage of a Password
Assigner
References
Impacted products
Vendor Product Version CPE status
Automation Direct CLICK PLC CPU Modules: C0-1x CPUs Affected: unspecified , < 3.00 (custom)
guessed Create a notification for this product.
Credits
Irfan Ahmed and Adeen Ayub of Virginia Commonwealth University and Hyunguk Yoo of the University of New Orleans reported these vulnerabilities to Automation Direct.
Show details on NVD website
To clipboard 

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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.