FKIE_CVE-2019-15027

Vulnerability from fkie_nvd - Published: 2019-08-14 13:15 - Updated: 2026-06-17 02:19
Severity
9.8 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
The MediaTek Embedded Multimedia Card (eMMC) subsystem for Android on MT65xx, MT66xx, and MT8163 SoC devices allows attackers to execute arbitrary commands as root via shell metacharacters in a filename under /data, because clear_emmc_nomedia_entry in platform/mt6577/external/meta/emmc/meta_clr_emmc.c invokes 'system("/system/bin/rm -r /data/' followed by this filename upon an eMMC clearance from a Meta Mode boot. NOTE: compromise of Fire OS on the Amazon Echo Dot would require a second hypothetical vulnerability that allows creation of the required file under /data.
References
cve@mitre.orghttps://dojo.bullguard.com/dojo-by-bullguard/blog/gaining-rooting-primitives-for-android-mediatek-chips/Exploit, Third Party Advisory
cve@mitre.orghttps://github.com/andr3jx/MTK6577/blob/238012ebf18e3751397884d1742ff7ab6417e80d/mediatek/platform/mt6577/external/meta/emmc/meta_clr_emmc.c#L302-L305Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://dojo.bullguard.com/dojo-by-bullguard/blog/gaining-rooting-primitives-for-android-mediatek-chips/Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/andr3jx/MTK6577/blob/238012ebf18e3751397884d1742ff7ab6417e80d/mediatek/platform/mt6577/external/meta/emmc/meta_clr_emmc.c#L302-L305Third Party Advisory
Impacted products
Vendor Product Version
mediatek mt8163_firmware -
mediatek mt8163 -
mediatek mt6625_firmware -
mediatek mt6625 -
mediatek mt6577_firmware -
mediatek mt6577 -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The MediaTek Embedded Multimedia Card (eMMC) subsystem for Android on MT65xx, MT66xx, and MT8163 SoC devices allows attackers to execute arbitrary commands as root via shell metacharacters in a filename under /data, because clear_emmc_nomedia_entry in platform/mt6577/external/meta/emmc/meta_clr_emmc.c invokes \u0027system(\"/system/bin/rm -r /data/\u0027 followed by this filename upon an eMMC clearance from a Meta Mode boot. NOTE: compromise of Fire OS on the Amazon Echo Dot would require a second hypothetical vulnerability that allows creation of the required file under /data."
    },
    {
      "lang": "es",
      "value": "El subsistema MediaTek Embedded Multimedia Card (eMMC) para Android sobre dispositivos SoC MT65xx, MT66xx y MT8163, permite a atacantes ejecutar comandos arbitrarios como root por medio de metacaracteres de shell en un nombre de archivo bajo /data, porque la funci\u00f3n clear_emmc_nomedia_entry en el archivo plataforma/mt6577/external/meta/emmc/meta_clr_emmc.c invoca \"system(\"/system/bin/rm -r /data/\" seguido de este nombre de archivo luego de una autorizaci\u00f3n de eMMC de un arranque en Modo Meta. NOTA: el compromiso del Fire OS en Amazon Echo Dot requerir\u00eda una segunda vulnerabilidad hipot\u00e9tica que permite la creaci\u00f3n del archivo requerido bajo /data."
    }
  ],
  "id": "CVE-2019-15027",
  "lastModified": "2026-06-17T02:19:33.480",
  "metrics": {
    "cvssMetricV2": [
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        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 10.0,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
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        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2019-08-14T13:15:11.187",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
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      "url": "https://dojo.bullguard.com/dojo-by-bullguard/blog/gaining-rooting-primitives-for-android-mediatek-chips/"
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    }
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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