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CVE-2021-23885

Estado: ModificadaAlta (8.8)—

Privilege escalation vulnerability in McAfee Web Gateway (MWG) prior to 9.2.8 allows an authenticated user to gain elevated privileges through the User Interface and execute commands on the appliance via incorrect improper neutralization of user input in the troubleshooting page.

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)

Mcafee — WEB Gateway

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-23885",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "trellixpsirt@trellix.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 9,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 2.3
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "trellixpsirt@trellix.com",
      "affectedData": [
        {
          "vendor": "McAfee,LLC",
          "product": "McAfee Web Gateway (MWG)",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "9.2.8",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-02-17T10:15:12.647",
  "references": [
    {
      "url": "https://kc.mcafee.com/corporate/index?page=content&id=SB10349",
      "source": "trellixpsirt@trellix.com"
    },
    {
      "url": "https://kc.mcafee.com/corporate/index?page=content&id=SB10349",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "trellixpsirt@trellix.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Privilege escalation vulnerability in McAfee Web Gateway (MWG) prior to 9.2.8 allows an authenticated user to gain elevated privileges through the User Interface and execute commands on the appliance via incorrect improper neutralization of user input in the troubleshooting page."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de escalada de privilegios en McAfee Web Gateway (MWG) versiones anteriores a 9.2.8, permite a un usuario autenticado alcanzar privilegios elevados por medio de la interfaz de usuario y ejecutar comandos en el dispositivo por medio de la neutralización inapropiada e incorrecta de la entrada del usuario en la página de solución de problemas"
    }
  ],
  "lastModified": "2026-06-17T03:38:58.930",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "368112E1-3BB1-4EA4-8C7B-23C16C5ADA40",
              "versionEndExcluding": "8.2.17"
            },
            {
              "criteria": "cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "74D83AD2-38B7-447F-8E0D-61E8E95E2EA5",
              "versionEndExcluding": "9.2.8",
              "versionStartIncluding": "9.2"
            },
            {
              "criteria": "cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2109DF5C-07B8-4F9B-B4C2-41A62B5CFD89",
              "versionEndExcluding": "10.0.4",
              "versionStartIncluding": "10.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "trellixpsirt@trellix.com"
}