FKIE_CVE-2021-20591

Vulnerability from fkie_nvd - Published: 2021-06-11 16:15 - Updated: 2024-11-21 05:46
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Uncontrolled Resource Consumption vulnerability in Mitsubishi Electric MELSEC iQ-R series CPU modules (R00/01/02CPU all versions, R04/08/16/32/120(EN)CPU all versions, R08/16/32/120SFCPU all versions, R08/16/32/120PCPU all versions, R08/16/32/120PSFCPU all versions) allows a remote unauthenticated attacker to prevent legitimate clients from connecting to the MELSOFT transmission port (TCP/IP) by not closing a connection properly, which may lead to a denial of service (DoS) condition.
References
Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jphttps://jvn.jp/vu/JVNVU98060539/index.htmlThird Party Advisory
Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jphttps://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-003_en.pdfVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://jvn.jp/vu/JVNVU98060539/index.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-003_en.pdfVendor Advisory
Impacted products
Vendor Product Version
mitsubishielectric r00cpu_firmware *
mitsubishielectric r00cpu -
mitsubishielectric r01cpu_firmware *
mitsubishielectric r01cpu -
mitsubishielectric r02cpu_firmware *
mitsubishielectric r02cpu -
mitsubishielectric r04cpu_firmware *
mitsubishielectric r04cpu -
mitsubishielectric r08cpu_firmware *
mitsubishielectric r08cpu -
mitsubishielectric r16cpu_firmware *
mitsubishielectric r16cpu -
mitsubishielectric r32cpu_firmware *
mitsubishielectric r32cpu -
mitsubishielectric r120cpu_firmware *
mitsubishielectric r120cpu -
mitsubishielectric r08sfcpu_firmware *
mitsubishielectric r08sfcpu -
mitsubishielectric r16sfcpu_firmware *
mitsubishielectric r16sfcpu -
mitsubishielectric r32sfcpu_firmware *
mitsubishielectric r32sfcpu -
mitsubishielectric r120sfcpu_firmware *
mitsubishielectric r120sfcpu -
mitsubishielectric r08pcpu_firmware *
mitsubishielectric r08pcpu -
mitsubishielectric r16pcpu_firmware *
mitsubishielectric r16pcpu -
mitsubishielectric r32pcpu_firmware *
mitsubishielectric r32pcpu -
mitsubishielectric r120pcpu_firmware *
mitsubishielectric r120pcpu -
mitsubishielectric r08psfcpu_firmware *
mitsubishielectric r08psfcpu -
mitsubishielectric r16psfcpu_firmware *
mitsubishielectric r16psfcpu -
mitsubishielectric r32psfcpu_firmware *
mitsubishielectric r32psfcpu -
mitsubishielectric r120psfcpu_firmware *
mitsubishielectric r120psfcpu -
To clipboard 

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  "descriptions": [
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      "lang": "en",
      "value": "Uncontrolled Resource Consumption vulnerability in Mitsubishi Electric MELSEC iQ-R series CPU modules (R00/01/02CPU all versions, R04/08/16/32/120(EN)CPU all versions, R08/16/32/120SFCPU all versions, R08/16/32/120PCPU all versions, R08/16/32/120PSFCPU all versions) allows a remote unauthenticated attacker to prevent legitimate clients from connecting to the MELSOFT transmission port (TCP/IP) by not closing a connection properly, which may lead to a denial of service (DoS) condition."
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      "lang": "es",
      "value": "Una vulnerabilidad de Consumo Incontrolado de Recursos en Mitsubishi Electric MELSEC iQ-R series CPU modules (R00/01/02CPU todas las versiones, R04/08/16/32/120(ES)CPU todas las versiones, R08/16/32/120SFCPU todas las versiones, R08/16/32/120PCPU todas las versiones, R08/16/32/120PSFCPU todas las versiones) permite a un atacante remoto no autentificado impedir que clientes leg\u00edtimos se conecten al puerto de transmisi\u00f3n de MELSOFT (TCP/IP) al no cerrar una conexi\u00f3n apropiadamente, lo que puede conllevar a una condici\u00f3n de denegaci\u00f3n de servicio (DoS)"
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  "id": "CVE-2021-20591",
  "lastModified": "2024-11-21T05:46:50.187",
  "metrics": {
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          "authentication": "NONE",
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          "baseScore": 7.8,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
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          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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  "published": "2021-06-11T16:15:08.987",
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    }
  ],
  "sourceIdentifier": "Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.