FKIE_CVE-2018-14987

Vulnerability from fkie_nvd - Published: 2018-12-28 21:29 - Updated: 2026-06-17 01:42
Severity
7.1 (High) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Summary
The MXQ TV Box 4.4.2 Android device with a build fingerprint of MBX/m201_N/m201_N:4.4.2/KOT49H/20160106:user/test-keys contains the Android framework with a package name of android (versionCode=19, versionName=4.4.2-20170213) that dynamically registers a broadcast receiver app component named com.android.server.MasterClearReceiver instead of statically registering it in the AndroidManifest.xml file of the core Android package, as done in Android Open Source Project (AOSP) code for Android 4.4.2. The dynamic-registration of the MasterClearReceiver broadcast receiver app component is not protected with the android.permission.MASTER_CLEAR permission during registration, so any app co-located on the device, even those without any permissions, can programmatically initiate a factory reset of the device. A factory reset will remove all user data and apps from the device. This will result in the loss of any data that have not been backed up or synced externally. The capability to perform a factory reset is not directly available to third-party apps (those that the user installs themselves with the exception of enabled Mobile Device Management (MDM) apps), although this capability can be obtained by leveraging an unprotected app component of core Android process.
References
cve@mitre.orghttps://www.kryptowire.com/portal/android-firmware-defcon-2018/Third Party Advisory
cve@mitre.orghttps://www.kryptowire.com/portal/wp-content/uploads/2018/12/DEFCON-26-Johnson-and-Stavrou-Vulnerable-Out-of-the-Box-An-Eval-of-Android-Carrier-Devices-WP-Updated.pdfThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.kryptowire.com/portal/android-firmware-defcon-2018/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.kryptowire.com/portal/wp-content/uploads/2018/12/DEFCON-26-Johnson-and-Stavrou-Vulnerable-Out-of-the-Box-An-Eval-of-Android-Carrier-Devices-WP-Updated.pdfThird Party Advisory
Impacted products
Vendor Product Version
mxq_project mxq_tv_box_firmware 4.4.2
mxq_project mxq_tv_box -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mxq_project:mxq_tv_box_firmware:4.4.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "44ED84B6-156F-475E-8E17-A4F3A6F29D36",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mxq_project:mxq_tv_box:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "A8BF8850-FD17-402F-B30F-C98766D6E931",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The MXQ TV Box 4.4.2 Android device with a build fingerprint of MBX/m201_N/m201_N:4.4.2/KOT49H/20160106:user/test-keys contains the Android framework with a package name of android (versionCode=19, versionName=4.4.2-20170213) that dynamically registers a broadcast receiver app component named com.android.server.MasterClearReceiver instead of statically registering it in the AndroidManifest.xml file of the core Android package, as done in Android Open Source Project (AOSP) code for Android 4.4.2. The dynamic-registration of the MasterClearReceiver broadcast receiver app component is not protected with the android.permission.MASTER_CLEAR permission during registration, so any app co-located on the device, even those without any permissions, can programmatically initiate a factory reset of the device. A factory reset will remove all user data and apps from the device. This will result in the loss of any data that have not been backed up or synced externally. The capability to perform a factory reset is not directly available to third-party apps (those that the user installs themselves with the exception of enabled Mobile Device Management (MDM) apps), although this capability can be obtained by leveraging an unprotected app component of core Android process."
    },
    {
      "lang": "es",
      "value": "El dispositivo Android MXQ TV Box 4.4.2 con una huella digital de MBX/m201_N/m201_N:4.4.2/KOT49H/20160106:user/test-keys contiene el framework de Android con un nombre de paquete android (versionCode=19, versionName=4.4.2-20170213) que registra din\u00e1micamente un componente de app de recepci\u00f3n de transmisiones llamado com.android.server.MasterClearReceiver, en lugar de registrarlo est\u00e1ticamente en el archivo AndroidManifest.xml del paquete core de Android, tal y como se realiza en el c\u00f3digo de Android Open Source Project (AOSP) para Android 4.4.2. El registro din\u00e1mico del componente de app de recepci\u00f3n de transmisiones MasterClearReceiver no est\u00e1 protegido con el permiso android.permission.MASTER_CLEAR durante el registro, por lo que cualquier app que est\u00e9 en el dispositivo, incluso las que no tienen permisos, pueden iniciar program\u00e1ticamente un reinicio de f\u00e1brica del dispositivo. Una restauraci\u00f3n de f\u00e1brica eliminar\u00e1 todos los datos y aplicaciones del usuario del dispositivo. Esto resultar\u00e1 en la p\u00e9rdida de cualquier dato que no haya sido sincronizado externamente o del que no tenga una copia de seguridad. La capacidad para realizar una restauraci\u00f3n de f\u00e1brica no est\u00e1 directamente disponible para aplicaciones de terceros (las que los usuarios instalan por s\u00ed mismos, exceptuando las aplicaciones habilitadas MDM, o de gesti\u00f3n del dispositivo m\u00f3vil), aunque puede obtenerse aprovechando un componente sin proteger de un proceso core de Android."
    }
  ],
  "id": "CVE-2018-14987",
  "lastModified": "2026-06-17T01:42:01.593",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 5.6,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 7.8,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2018-12-28T21:29:00.497",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.kryptowire.com/portal/android-firmware-defcon-2018/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.kryptowire.com/portal/wp-content/uploads/2018/12/DEFCON-26-Johnson-and-Stavrou-Vulnerable-Out-of-the-Box-An-Eval-of-Android-Carrier-Devices-WP-Updated.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.kryptowire.com/portal/android-firmware-defcon-2018/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.kryptowire.com/portal/wp-content/uploads/2018/12/DEFCON-26-Johnson-and-Stavrou-Vulnerable-Out-of-the-Box-An-Eval-of-Android-Carrier-Devices-WP-Updated.pdf"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-732"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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