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CVE-2020-5386

Estado: ModificadaAlta (7.5)—

Dell EMC ECS, versions prior to 3.5, contains an Exposure of Resource vulnerability. A remote unauthenticated attacker can access the list of DT (Directory Table) objects of all internally running services and gain knowledge of sensitive data of the system.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Fuente: mapeo oficial MITRE CTID (CVE → ATT&CK).

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Data Loss Prevention

Tecnologías afectadas (1)

Dell — EMC Elastic Cloud Storage

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-5386",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "security_alert@emc.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.2
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security_alert@emc.com",
      "affectedData": [
        {
          "vendor": "Dell",
          "product": "Elastic Cloud Storage",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "3.5",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-09-02T21:15:13.047",
  "references": [
    {
      "url": "https://www.dell.com/support/security/en-us/details/545893/DSA-2020-208-Dell-EMC-ECS-Security-Update-for-an-Exposure-of-Resource-vulnerability",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security_alert@emc.com"
    },
    {
      "url": "https://www.dell.com/support/security/en-us/details/545893/DSA-2020-208-Dell-EMC-ECS-Security-Update-for-an-Exposure-of-Resource-vulnerability",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security_alert@emc.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-668"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-668"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Dell EMC ECS, versions prior to 3.5, contains an Exposure of Resource vulnerability. A remote unauthenticated attacker can access the list of DT (Directory Table) objects of all internally running services and gain knowledge of sensitive data of the system."
    },
    {
      "lang": "es",
      "value": "Dell EMC ECS, versiones anteriores a 3.5, contiene una vulnerabilidad de Exposición de Recursos. Un atacante remoto no autenticado puede acceder a la lista de objetos DT (Directory Table) de todos los servicios que se ejecutan internamente y lograr conocer los datos confidenciales del sistema"
    }
  ],
  "lastModified": "2026-06-17T03:21:23.500",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:dell:emc_elastic_cloud_storage:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A9A89D6A-3AFF-4F29-8D75-3894E93887C8",
              "versionEndExcluding": "3.5.0.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security_alert@emc.com"
}