CVE-2021-20594
Vulnerability from cvelistv5
Published
2021-08-06 00:00
Modified
2024-08-03 17:45
Severity ?
Summary
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU firmware versions "26" and prior and Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU firmware versions "11" and prior allows a remote unauthenticated attacker to acquire legitimate user names registered in the module via brute-force attack on user names.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:45:44.726Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://jvn.jp/vu/JVNVU98578731/index.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-008_en.pdf"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-250-01"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU; Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU firmware versions \"26\" and prior"
            },
            {
              "status": "affected",
              "version": "Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU firmware versions \"11\" and prior"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eExposure of Sensitive Information to an Unauthorized Actor vulnerability in Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU firmware versions \"26\" and prior and Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU firmware versions \"11\" and prior allows a remote unauthenticated attacker to acquire legitimate user names registered in the module via brute-force attack on user names.\u003c/p\u003e"
            }
          ],
          "value": "Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU firmware versions \"26\" and prior and Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU firmware versions \"11\" and prior allows a remote unauthenticated attacker to acquire legitimate user names registered in the module via brute-force attack on user names."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-05-24T07:53:21.422Z",
        "orgId": "e0f77b61-78fd-4786-b3fb-1ee347a748ad",
        "shortName": "Mitsubishi"
      },
      "references": [
        {
          "url": "https://jvn.jp/vu/JVNVU98578731/index.html"
        },
        {
          "url": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-008_en.pdf"
        },
        {
          "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-250-01"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "e0f77b61-78fd-4786-b3fb-1ee347a748ad",
    "assignerShortName": "Mitsubishi",
    "cveId": "CVE-2021-20594",
    "datePublished": "2021-08-06T00:00:00",
    "dateReserved": "2020-12-17T00:00:00",
    "dateUpdated": "2024-08-03T17:45:44.726Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-20594\",\"sourceIdentifier\":\"Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp\",\"published\":\"2021-08-06T17:15:07.103\",\"lastModified\":\"2024-05-24T08:15:08.543\",\"vulnStatus\":\"Modified\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU firmware versions \\\"26\\\" and prior and Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU firmware versions \\\"11\\\" and prior allows a remote unauthenticated attacker to acquire legitimate user names registered in the module via brute-force attack on user names.\"},{\"lang\":\"es\",\"value\":\"La exposici\u00f3n de informaci\u00f3n sensible a un actor no autorizado es una vulnerabilidad en los m\u00f3dulos de CPU de seguridad de la serie MELSEC iQ-R de Mitsubishi Electric R08/16/32/120SFCPU, versiones de firmware \\\"26\\\" y anteriores, y en los m\u00f3dulos de CPU de proceso SIL2 de la serie MELSEC iQ-R de Mitsubishi Electric R08/16/32/120PSFCPU, todas las versiones, que permite a un atacante remoto no autenticado adquirir nombres de usuario leg\u00edtimos registrados en el m\u00f3dulo mediante un ataque de fuerza bruta a los nombres de usuario\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:N/A:N\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":5.0},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-200\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:mitsubishielectric:r08sfcpu:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B185323A-C9E3-48A0-AD28-DA7AC7846E18\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:mitsubishielectric:r08sfcpu_firmware:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"66D3AC7B-50E0-47D5-B0D1-07329D724EFE\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:mitsubishielectric:r16sfcpu:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C4BBE066-33C4-4410-85D3-4B77B3773330\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:mitsubishielectric:r16sfcpu_firmware:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AA81D5C7-46C8-4F0E-9550-D240DC0366F3\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:mitsubishielectric:r32sfcpu:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6F6304BE-DAEE-49AB-B0B1-CEE6878CBECE\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:mitsubishielectric:r32sfcpu_firmware:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7FB53D61-6C69-4A4A-92B1-C10D0B8F0EC9\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:mitsubishielectric:r120sfcpu:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"515BDC46-5A1C-4A94-816A-B4751BB1B58D\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:mitsubishielectric:r120sfcpu_firmware:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8218130C-4E7D-4FB9-976B-2351977C82D4\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:mitsubishielectric:r08psfcpu:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"EA37F2FC-8F75-4FEA-882D-87AD5CC1558E\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:mitsubishielectric:r08psfcpu_firmware:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5A63D33D-302A-428C-986F-FC3F83CE9C86\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:mitsubishielectric:r16psfcpu:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"17AD5875-B7D7-498B-9484-23049753133E\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:mitsubishielectric:r16psfcpu_firmware:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FFB42739-E503-44B2-A020-0DB2B8791A81\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:mitsubishielectric:r32psfcpu:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0EC2594C-6067-40BA-B8B2-AEC9B9C7922F\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:mitsubishielectric:r32psfcpu_firmware:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3B1F532B-8EAF-4E66-9AF5-5EEFF5A0BC23\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:mitsubishielectric:r120psfcpu:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CA3FB3E1-D7D3-424B-A207-D3C6F4365D12\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:mitsubishielectric:r120psfcpu_firmware:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B2C03EA2-34BF-4F86-A19C-2818788E092B\"}]}]}],\"references\":[{\"url\":\"https://jvn.jp/vu/JVNVU98578731/index.html\",\"source\":\"Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.cisa.gov/uscert/ics/advisories/icsa-21-250-01\",\"source\":\"Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp\"},{\"url\":\"https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-008_en.pdf\",\"source\":\"Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading...

Loading...

Loading...

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.