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FKIE_CVE-2021-0319

Vulnerability from fkie_nvd - Published: 2021-01-11 22:15 - Updated: 2026-06-17 03:29
Severity
7.3 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Summary
In checkCallerIsSystemOr of CompanionDeviceManagerService.java, there is a possible way to get a nearby Bluetooth device's MAC address without appropriate permissions due to a permissions bypass. This could lead to local escalation of privilege that grants access to nearby MAC addresses, with User execution privileges needed. User interaction is needed for exploitation. Product: Android; Versions: Android-8.0, Android-8.1, Android-9, Android-10, Android-11; Android ID: A-167244818.
References
security@android.comhttps://source.android.com/security/bulletin/2021-01-01Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://source.android.com/security/bulletin/2021-01-01Patch, Vendor Advisory
Impacted products
Vendor Product Version
google android 8.0
google android 8.1
google android 9.0
google android 10.0
google android 11.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Android",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Android-8.0"
            },
            {
              "status": "affected",
              "version": "Android-8.1"
            },
            {
              "status": "affected",
              "version": "Android-9"
            },
            {
              "status": "affected",
              "version": "Android-10"
            },
            {
              "status": "affected",
              "version": "Android-11"
            }
          ]
        }
      ],
      "source": "security@android.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:google:android:8.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "B578E383-0D77-4AC7-9C81-3F0B8C18E033",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:google:android:8.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "B06BE74B-83F4-41A3-8AD3-2E6248F7B0B2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:google:android:9.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "8DFAAD08-36DA-4C95-8200-C29FE5B6B854",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "D558D965-FA70-4822-A770-419E73BA9ED3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "109DD7FD-3A48-4C3D-8E1A-4433B98E1E64",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In checkCallerIsSystemOr of CompanionDeviceManagerService.java, there is a possible way to get a nearby Bluetooth device\u0027s MAC address without appropriate permissions due to a permissions bypass. This could lead to local escalation of privilege that grants access to nearby MAC addresses, with User execution privileges needed. User interaction is needed for exploitation. Product: Android; Versions: Android-8.0, Android-8.1, Android-9, Android-10, Android-11; Android ID: A-167244818."
    },
    {
      "lang": "es",
      "value": "En la funci\u00f3n checkCallerIsSystemOr del archivo CompanionDeviceManagerService.java, existe una posible manera de obtener la direcci\u00f3n MAC de un dispositivo Bluetooth cercano sin los permisos apropiados debido a una omisi\u00f3n de permisos.\u0026#xa0;Esto podr\u00eda conllevar a una escalada de privilegios local que otorgue acceso a direcciones MAC cercanas, con privilegios de ejecuci\u00f3n User necesarios.\u0026#xa0;Es requerida una interacci\u00f3n del usuario para su explotaci\u00f3n.\u0026#xa0;Producto: Android;\u0026#xa0;Versiones: Android-8.0, Android-8.1, Android-9, Android-10, Android-11;\u0026#xa0;ID de Android: A-167244818"
    }
  ],
  "id": "CVE-2021-0319",
  "lastModified": "2026-06-17T03:29:47.110",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.4,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.4,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.3,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-01-11T22:15:13.643",
  "references": [
    {
      "source": "security@android.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://source.android.com/security/bulletin/2021-01-01"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://source.android.com/security/bulletin/2021-01-01"
    }
  ],
  "sourceIdentifier": "security@android.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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