FKIE_CVE-2021-32984

Vulnerability from fkie_nvd - Published: 2022-04-04 20:15 - Updated: 2026-06-17 03:53
Summary
All programming connections receive the same unlocked privileges, which can result in a privilege escalation. During the time Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00 is unlocked by an authorized user, an attacker can connect to the PLC and read the project without authorization.

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "All programming connections receive the same unlocked privileges, which can result in a privilege escalation. During the time Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00 is unlocked by an authorized user, an attacker can connect to the PLC and read the project without authorization."
    },
    {
      "lang": "es",
      "value": "Todas las conexiones de programaci\u00f3n reciben los mismos privilegios desbloqueados, lo que puede resultar en una escalada de privilegios. Durante el tiempo que los M\u00f3dulos de CPU de PLC CLICK de Automation Direct: CPUs C0-1x con versiones de firmware anteriores a v3.00, es desbloqueado por un usuario autorizado, un atacante puede conectarse al PLC y leer el proyecto sin autorizaci\u00f3n"
    }
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  "id": "CVE-2021-32984",
  "lastModified": "2026-06-17T03:53:57.087",
  "metrics": {
    "cvssMetricV2": [
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        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
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          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
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        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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          "attackVector": "NETWORK",
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          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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          "confidentialityImpact": "HIGH",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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          "options": [
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              "exploitation": "none"
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            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
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          "role": "CISA Coordinator",
          "timestamp": "2025-04-16T15:56:19.421509Z",
          "version": "2.0.3"
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  "published": "2022-04-04T20:15:09.100",
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      "source": "ics-cert@hq.dhs.gov",
      "tags": [
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      "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-166-02"
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}



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Tags
Taxonomy of the tags.


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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.

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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.


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