nvd-json-data-feeds/CVE-2018/CVE-2018-182xx/CVE-2018-18203.json

{
  "id": "CVE-2018-18203",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2018-11-28T23:29:00.357",
  "lastModified": "2024-11-21T03:55:31.973",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the update mechanism of Subaru StarLink Harman head units 2017, 2018, and 2019 may give an attacker (with physical access to the vehicle's USB ports) the ability to rewrite the firmware of the head unit. This occurs because the device accepts modified QNX6 filesystem images (as long as the attacker obtains access to certain Harman decryption/encryption code) as a consequence of a bug where unsigned images pass a validity check. An attacker could potentially install persistent malicious head unit firmware and execute arbitrary code as the root user."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en el mecanismo de actualizaci\u00f3n de Subaru StarLink Harman, en las unidades principales 2017, 2018 y 2019, podr\u00eda otorgar a un atacante (con acceso f\u00edsico a los puertos USB del veh\u00edculo) la capacidad de reescribir el firmware de la unidad principal. Esto ocurre debido a que el dispositivo acepta im\u00e1genes modificadas del sistema de archivos QNX6 (siempre que el atacante obtenga acceso a cierto c\u00f3digo de descifrado/cifrado de Harman) como consecuencia de un error por el cual las im\u00e1genes no firmadas pasan una comprobaci\u00f3n de validez. Un atacante podr\u00eda instalar firmware de la unidad principal malicioso y persistente, as\u00ed como ejecutar c\u00f3digo arbitrario como usuario root."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 6.4,
          "baseSeverity": "MEDIUM",
          "attackVector": "PHYSICAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 0.5,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
          "baseScore": 6.9,
          "accessVector": "LOCAL",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "availabilityImpact": "COMPLETE"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 3.4,
        "impactScore": 10.0,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-347"
        }
      ]
    }
  ],
  "configurations": [
    {
      "operator": "AND",
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:subaru:starlink_2017_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "9F58AE13-21B3-4D68-BD6C-3DFB87C22EEC"
            }
          ]
        },
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": false,
              "criteria": "cpe:2.3:h:subaru:starlink_2017:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "AE566456-6FDF-46F2-A134-CF10F5A651A2"
            }
          ]
        }
      ]
    },
    {
      "operator": "AND",
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:subaru:starlink_2018_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "5F4A934A-77D5-458B-AEDF-DEAE4141D132"
            }
          ]
        },
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": false,
              "criteria": "cpe:2.3:h:subaru:starlink_2018:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "2C4D4E5F-2C65-4B74-95B5-7CB56A497B1B"
            }
          ]
        }
      ]
    },
    {
      "operator": "AND",
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:subaru:starlink_2019_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "84AE643D-BA28-4A9E-9F93-59016FC6D29B"
            }
          ]
        },
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": false,
              "criteria": "cpe:2.3:h:subaru:starlink_2019:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "10055215-2FA2-44F3-AC50-71654CA25353"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/sgayou/subaru_starlink_research",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/sgayou/subaru_starlink_research",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    }
  ]
}