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CVE-2020-36879

Estado: AplazadaAlta (8.5)—

Flexsense DiskBoss 11.7.28 allows unauthenticated attackers to elevate their privileges using any of its services, enabling remote code execution during startup or reboot with escalated privileges. Attackers can exploit the unquoted service path vulnerability by specifying a malicious service name in the 'sc qc' command, allowing them to execute arbitrary system commands.

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.

UI:R (interacción del usuario requerida) + acceso local → T1203. El atacante escala privilegios a nivel de sistema mediante servicio desquotado, logrando RCE elevado. CWE-428 confirma ruta de servicio sin comillas.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-36879",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2020-36879",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-12-05T20:08:41.218665Z"
        }
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "disclosure@vulncheck.com",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 8.5,
          "Automatable": "NOT_DEFINED",
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "PASSIVE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "disclosure@vulncheck.com",
      "affectedData": [
        {
          "vendor": "Flexsense",
          "product": "DiskBoss",
          "versions": [
            {
              "status": "affected",
              "version": "11.7.28"
            }
          ],
          "defaultStatus": "unaffected"
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        {
          "vendor": "Flexsense",
          "product": "DiskBoss Pro",
          "versions": [
            {
              "status": "affected",
              "version": "11.7.28"
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          ],
          "defaultStatus": "unaffected"
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        {
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          "product": "DiskBoss Ultimate",
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        {
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          ],
          "defaultStatus": "unaffected"
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        {
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          ],
          "defaultStatus": "unaffected"
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        {
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          "product": "DiskBoss Enterprise",
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            {
              "status": "affected",
              "version": "11.7.28"
            }
          ],
          "defaultStatus": "unaffected"
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      ]
    }
  ],
  "published": "2025-12-05T18:15:53.713",
  "references": [
    {
      "url": "https://www.diskboss.com/",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://www.diskboss.com/downloads.html",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://www.exploit-db.com/exploits/49022",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://www.vulncheck.com/advisories/flexsense-diskboss-service-unquoted-service-path-vulnerability",
      "source": "disclosure@vulncheck.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "disclosure@vulncheck.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-428"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Flexsense DiskBoss 11.7.28 allows unauthenticated attackers to elevate their privileges using any of its services, enabling remote code execution during startup or reboot with escalated privileges. Attackers can exploit the unquoted service path vulnerability by specifying a malicious service name in the 'sc qc' command, allowing them to execute arbitrary system commands."
    }
  ],
  "lastModified": "2026-06-17T03:16:24.190",
  "sourceIdentifier": "disclosure@vulncheck.com"
}