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CVE-2023-39249

Estado: ModificadaMedia (5.3)—

Dell SupportAssist for Business PCs version 3.4.0 contains a local Authentication Bypass vulnerability that allows locally authenticated non-admin users to gain temporary privilege within the SupportAssist User Interface on their respective PC. The Run as Admin temporary privilege feature enables IT/System Administrators to perform driver scans and Dell-recommended driver installations without requiring them to log out of the local non-admin user session. However, the granted privilege is limited solely to the SupportAssist User Interface and automatically expires after 15 minutes.

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)

Dell — Supportassist FOR Home PCS

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-39249",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-39249",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-08-14T18:11:48.763812Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security_alert@emc.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.3,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 3.7,
        "exploitabilityScore": 2
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 3.4,
        "exploitabilityScore": 1.8
      }
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  },
  "affected": [
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      "source": "security_alert@emc.com",
      "affectedData": [
        {
          "vendor": "Dell",
          "product": "SupportAssist Client Consumer",
          "versions": [
            {
              "status": "affected",
              "version": "3.4.0"
            }
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  "published": "2024-02-14T08:15:09.013",
  "references": [
    {
      "url": "https://www.dell.com/support/kbdoc/en-us/000216574/security-update-for-dell-supportassist-for-business-pcs-vulnerability",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security_alert@emc.com"
    },
    {
      "url": "https://www.dell.com/support/kbdoc/en-us/000216574/security-update-for-dell-supportassist-for-business-pcs-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-280"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "\nDell SupportAssist for Business PCs version 3.4.0 contains a local Authentication Bypass vulnerability that allows locally authenticated non-admin users to gain temporary privilege within the SupportAssist User Interface on their respective PC. The Run as Admin temporary privilege feature enables IT/System Administrators to perform driver scans and Dell-recommended driver installations without requiring them to log out of the local non-admin user session. However, the granted privilege is limited solely to the SupportAssist User Interface and automatically expires after 15 minutes.\n\n"
    },
    {
      "lang": "es",
      "value": "Dell SupportAssist para PC empresariales versión 3.4.0 contiene una vulnerabilidad de omisión de autenticación local que permite a los usuarios no administradores autenticados localmente obtener privilegios temporales dentro de la interfaz de usuario de SupportAssist en sus respectivas PC. La función de privilegio temporal Ejecutar como administrador permite a los administradores de sistemas/TI realizar análisis de controladores e instalaciones de controladores recomendadas por Dell sin necesidad de cerrar sesión en la sesión de usuario local que no es administrador. Sin embargo, el privilegio otorgado se limita únicamente a la interfaz de usuario de SupportAssist y caduca automáticamente después de 15 minutos."
    }
  ],
  "lastModified": "2026-06-17T06:11:50.477",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:dell:supportassist_for_home_pcs:3.4.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "39D7A1D4-D5A2-49AA-9186-0F3D345D6585"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "security_alert@emc.com"
}