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CVE-2020-5667

Estado: ModificadaMedia (5.5)—

La aplicación Studyplus para Android versiones v6.3.7 y anteriores y la aplicación Studyplus para iOS versiones v8.29.0 y anteriores, usan una clave API embebida para un servicio externo. Al explotar esta vulnerabilidad, la clave API para un servicio externo puede ser obtenida mediante el análisis de los datos en la aplicación

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)

Wantedlyinc — Studyplus

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-5667",
  "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": "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": "vultures@jpcert.or.jp",
      "affectedData": [
        {
          "vendor": "Studyplus Inc.",
          "product": "Studyplus App",
          "versions": [
            {
              "status": "affected",
              "version": "for Android v6.3.7 and earlier, and for iOS v8.29.0 and earlier"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-11-06T03:15:17.777",
  "references": [
    {
      "url": "https://jvn.jp/en/jp/JVN00414047/index.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "vultures@jpcert.or.jp"
    },
    {
      "url": "https://jvn.jp/en/jp/JVN00414047/index.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-798"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Studyplus App for Android v6.3.7 and earlier and Studyplus App for iOS v8.29.0 and earlier use a hard-coded API key for an external service. By exploiting this vulnerability, API key for an external service may be obtained by analyzing data in the app."
    },
    {
      "lang": "es",
      "value": "La aplicación Studyplus para Android versiones v6.3.7 y anteriores y la aplicación Studyplus para iOS versiones v8.29.0 y anteriores, usan una clave API embebida para un servicio externo. Al explotar esta vulnerabilidad, la clave API para un servicio externo puede ser obtenida mediante el análisis de los datos en la aplicación"
    }
  ],
  "lastModified": "2026-06-17T03:22:03.980",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:wantedlyinc:studyplus:*:*:*:*:*:android:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1F8A4885-F83A-4364-8ADF-96E1109C215B",
              "versionEndIncluding": "6.3.7"
            },
            {
              "criteria": "cpe:2.3:a:wantedlyinc:studyplus:*:*:*:*:*:iphone_os:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A4BC2E3B-846A-4F4A-A56D-8AD085B3D84E",
              "versionEndIncluding": "8.29.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "vultures@jpcert.or.jp"
}