FKIE_CVE-2021-21528

Vulnerability from fkie_nvd - Published: 2021-11-12 23:15 - Updated: 2026-06-17 03:35
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
Dell EMC PowerScale OneFS versions 9.1.0, 9.2.0.x, 9.2.1.x contain an Exposure of Information through Directory Listing vulnerability. This vulnerability is triggered when upgrading from a previous versions.
References
security_alert@emc.comhttps://www.dell.com/support/kbdoc/en-us/000193005/Mitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.dell.com/support/kbdoc/en-us/000193005/Mitigation, Vendor Advisory
Impacted products
Vendor Product Version
dell emc_powerscale_onefs 9.1.0.0
dell emc_powerscale_onefs 9.2.0.0
dell emc_powerscale_onefs 9.2.1.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "PowerScale OneFS",
          "vendor": "Dell",
          "versions": [
            {
              "status": "affected",
              "version": "9.1.0, 9.2.0.x, 9.2.1.x"
            }
          ]
        }
      ],
      "source": "security_alert@emc.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:dell:emc_powerscale_onefs:9.1.0.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "5F9E9789-7B7C-43CF-8129-12F3958478E6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:dell:emc_powerscale_onefs:9.2.0.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "4A1E2393-0CFD-424E-A7E0-64F6CCFE170D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:dell:emc_powerscale_onefs:9.2.1.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "22329930-BBC9-40B1-BC0A-5E444E11F781",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Dell EMC PowerScale OneFS versions 9.1.0, 9.2.0.x, 9.2.1.x contain an Exposure of Information through Directory Listing vulnerability. This vulnerability is triggered when upgrading from a previous versions."
    },
    {
      "lang": "es",
      "value": "Dell EMC PowerScale OneFS versiones 9.1.0, 9.2.0.x y 9.2.1.x de  contienen una vulnerabilidad de Exposici\u00f3n de Informaci\u00f3n mediante Listas de Directorios. Esta vulnerabilidad es desencadenada cuando es actualizada desde una versi\u00f3n anterior"
    }
  ],
  "id": "CVE-2021-21528",
  "lastModified": "2026-06-17T03:35:43.330",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security_alert@emc.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-11-12T23:15:08.240",
  "references": [
    {
      "source": "security_alert@emc.com",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://www.dell.com/support/kbdoc/en-us/000193005/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://www.dell.com/support/kbdoc/en-us/000193005/"
    }
  ],
  "sourceIdentifier": "security_alert@emc.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-548"
        }
      ],
      "source": "security_alert@emc.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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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.

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Nomenclature

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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