FKIE_CVE-2021-20835

Vulnerability from fkie_nvd - Published: 2021-11-24 16:15 - Updated: 2024-11-21 05:47
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
Improper authorization in handler for custom URL scheme vulnerability in Android App 'Mercari (Merpay) - Marketplace and Mobile Payments App' (Japan version) versions prior to 4.49.1 allows a remote attacker to lead a user to access an arbitrary website and the website launches an arbitrary Activity of the app via the vulnerable App, which may result in Mercari account's access token being obtained.
References
vultures@jpcert.or.jphttps://jvn.jp/en/jp/JVN49465877/index.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://jvn.jp/en/jp/JVN49465877/index.htmlThird Party Advisory
Impacted products
Vendor Product Version
mercari mercari *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mercari:mercari:*:*:*:*:*:android:*:*",
              "matchCriteriaId": "AD3E0EAD-AADA-4EFF-9663-CD638377A02F",
              "versionEndExcluding": "4.49.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper authorization in handler for custom URL scheme vulnerability in Android App \u0027Mercari (Merpay) - Marketplace and Mobile Payments App\u0027 (Japan version) versions prior to 4.49.1 allows a remote attacker to lead a user to access an arbitrary website and the website launches an arbitrary Activity of the app via the vulnerable App, which may result in Mercari account\u0027s access token being obtained."
    },
    {
      "lang": "es",
      "value": "Una autorizaci\u00f3n inapropiada en el manejador para la vulnerabilidad del esquema de URL personalizado en la aplicaci\u00f3n Android \"Mercari (Merpay) - Marketplace and Mobile Payments App\" (versi\u00f3n de Jap\u00f3n) versiones anteriores a la 4.49.1, permite a un atacante remoto conllevar a un usuario a acceder a un sitio web arbitrario y el sitio web lanza una actividad arbitraria de la aplicaci\u00f3n por medio de la aplicaci\u00f3n vulnerable, lo que puede resultar en una obtenci\u00f3n del token de acceso de la cuenta Mercari"
    }
  ],
  "id": "CVE-2021-20835",
  "lastModified": "2024-11-21T05:47:15.110",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-11-24T16:15:12.970",
  "references": [
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://jvn.jp/en/jp/JVN49465877/index.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://jvn.jp/en/jp/JVN49465877/index.html"
    }
  ],
  "sourceIdentifier": "vultures@jpcert.or.jp",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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