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CVE-2021-25344

Estado: ModificadaMedia (5.5)—

La falta de comprobación de permisos en el servicio knox_custom anterior a SMR Mar-2021 Release 1, permite a los atacantes obtener acceso al número de serie del dispositivo sin permiso

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)

Google — Android

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-25344",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/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": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "mobile.security@samsung.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.2,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/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": 2.5
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "mobile.security@samsung.com",
      "affectedData": [
        {
          "vendor": "Samsung Mobile",
          "product": "Samsung Mobile Devices",
          "versions": [
            {
              "status": "affected",
              "version": "Q(10.0), R(11.0)",
              "lessThan": "SMR Mar-2021 Release 1",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-03-04T22:15:14.063",
  "references": [
    {
      "url": "https://security.samsungmobile.com/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "mobile.security@samsung.com"
    },
    {
      "url": "https://security.samsungmobile.com/securityUpdate.smsb",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "mobile.security@samsung.com"
    },
    {
      "url": "https://security.samsungmobile.com/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.samsungmobile.com/securityUpdate.smsb",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Missing permission check in knox_custom service prior to SMR Mar-2021 Release 1 allows attackers to gain access to device's serial number without permission."
    },
    {
      "lang": "es",
      "value": "La falta de comprobación de permisos en el servicio knox_custom anterior a SMR Mar-2021 Release 1, permite a los atacantes obtener acceso al número de serie del dispositivo sin permiso"
    }
  ],
  "lastModified": "2026-06-17T03:41:54.573",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D558D965-FA70-4822-A770-419E73BA9ED3"
            },
            {
              "criteria": "cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "109DD7FD-3A48-4C3D-8E1A-4433B98E1E64"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "mobile.security@samsung.com"
}