FKIE_CVE-2020-5523

Vulnerability from fkie_nvd - Published: 2020-01-28 06:15 - Updated: 2024-11-21 05:34
Severity
7.4 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Summary
Android App 'MyPallete' and some of the Android banking applications based on 'MyPallete' do not verify X.509 certificates from servers, and also do not properly validate certificates with host-mismatch, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
References
vultures@jpcert.or.jphttp://jvn.jp/en/jp/JVN28845872/index.htmlThird Party Advisory
vultures@jpcert.or.jphttp://www.dokodemobank.ne.jp/info_20200128_bankingapp.htmlThird Party Advisory
vultures@jpcert.or.jphttps://www.77bank.co.jp/pdf/oshirase/20012801_appvulnerability.pdfThird Party Advisory
vultures@jpcert.or.jphttps://www.ashikagabank.co.jp/appbanking/pdf/oshirase.pdfThird Party Advisory
vultures@jpcert.or.jphttps://www.hokkaidobank.co.jp/common/dat/2020/0120/15795047141946146699.pdfThird Party Advisory
vultures@jpcert.or.jphttps://www.hokugin.co.jp/info/archives/personal/2020/1913.htmlThird Party Advisory
vultures@jpcert.or.jphttps://www.naganobank.co.jp/soshiki/2/app-ssl.htmlThird Party Advisory
vultures@jpcert.or.jphttps://www.shikokubank.co.jp/info/apps20200128.htmlThird Party Advisory
vultures@jpcert.or.jphttps://www.sihd-bk.jp/common_v2/pdf/20200127.pdfThird Party Advisory
vultures@jpcert.or.jphttps://www.tohoku-bank.co.jp/news/topics/200128_applissl.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://jvn.jp/en/jp/JVN28845872/index.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.dokodemobank.ne.jp/info_20200128_bankingapp.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.77bank.co.jp/pdf/oshirase/20012801_appvulnerability.pdfThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.ashikagabank.co.jp/appbanking/pdf/oshirase.pdfThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.hokkaidobank.co.jp/common/dat/2020/0120/15795047141946146699.pdfThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.hokugin.co.jp/info/archives/personal/2020/1913.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.naganobank.co.jp/soshiki/2/app-ssl.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.shikokubank.co.jp/info/apps20200128.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.sihd-bk.jp/common_v2/pdf/20200127.pdfThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.tohoku-bank.co.jp/news/topics/200128_applissl.htmlThird Party Advisory
Impacted products
Vendor Product Version
77bank 77_bank *
ashikagabank ashigin *
hokkaidobank dogin *
hokugin hokuriku_bank_portal *
naganobank nagagin *
nttdata mypallete -
shikokubank shikoku_bank *
sihd-bk ikeda_senshu_bank *
tohoku-bank tougin *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:77bank:77_bank:*:*:*:*:*:android:*:*",
              "matchCriteriaId": "7F484419-4038-47D4-85CF-1756BFB67E2A",
              "versionEndIncluding": "2.0.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:ashikagabank:ashigin:*:*:*:*:*:android:*:*",
              "matchCriteriaId": "04BF27EE-2955-4517-8A7B-D8F39631B7B6",
              "versionEndIncluding": "1.0.4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:hokkaidobank:dogin:*:*:*:*:*:android:*:*",
              "matchCriteriaId": "488D7CBE-9389-4DA7-99AE-3AF33FCE5FA8",
              "versionEndIncluding": "3.0.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:hokugin:hokuriku_bank_portal:*:*:*:*:*:android:*:*",
              "matchCriteriaId": "8CD46460-45D4-46FC-84F9-7D22EB5B2D27",
              "versionEndIncluding": "2.0.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:naganobank:nagagin:*:*:*:*:*:android:*:*",
              "matchCriteriaId": "5B219F59-31DC-48E1-8590-79868C05BB98",
              "versionEndIncluding": "1.0.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:nttdata:mypallete:-:*:*:*:*:android:*:*",
              "matchCriteriaId": "145255E1-B0C0-4B0B-8C5D-63A21982042C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:shikokubank:shikoku_bank:*:*:*:*:*:android:*:*",
              "matchCriteriaId": "F02DADD1-75A5-4155-A88C-D3383C6BB3CE",
              "versionEndIncluding": "2.0.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sihd-bk:ikeda_senshu_bank:*:*:*:*:*:android:*:*",
              "matchCriteriaId": "396C963D-0260-4BCD-AA7C-0FB6055A298F",
              "versionEndIncluding": "3.0.4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:tohoku-bank:tougin:*:*:*:*:*:android:*:*",
              "matchCriteriaId": "9FA99794-E4DA-410D-B278-8D5955E2C6BF",
              "versionEndIncluding": "1.0.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Android App \u0027MyPallete\u0027 and some of the Android banking applications based on \u0027MyPallete\u0027 do not verify X.509 certificates from servers, and also do not properly validate certificates with host-mismatch, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate."
    },
    {
      "lang": "es",
      "value": "La aplicaci\u00f3n de Android \"MyPallete\" y algunas de las aplicaciones bancarias de Android basadas en \"MyPallete\" no verifican los certificados X.509 de los servidores, y tampoco comprueban apropiadamente los certificados con incompatibilidad de host, lo que permite a atacantes de tipo man-in-the-middle falsificar servidores y obtener informaci\u00f3n confidencial por medio de un certificado dise\u00f1ado."
    }
  ],
  "id": "CVE-2020-5523",
  "lastModified": "2024-11-21T05:34:12.540",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.4,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-01-28T06:15:12.353",
  "references": [
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://jvn.jp/en/jp/JVN28845872/index.html"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://www.dokodemobank.ne.jp/info_20200128_bankingapp.html"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.77bank.co.jp/pdf/oshirase/20012801_appvulnerability.pdf"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.ashikagabank.co.jp/appbanking/pdf/oshirase.pdf"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.hokkaidobank.co.jp/common/dat/2020/0120/15795047141946146699.pdf"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.hokugin.co.jp/info/archives/personal/2020/1913.html"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.naganobank.co.jp/soshiki/2/app-ssl.html"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.shikokubank.co.jp/info/apps20200128.html"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.sihd-bk.jp/common_v2/pdf/20200127.pdf"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.tohoku-bank.co.jp/news/topics/200128_applissl.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://jvn.jp/en/jp/JVN28845872/index.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://www.dokodemobank.ne.jp/info_20200128_bankingapp.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.77bank.co.jp/pdf/oshirase/20012801_appvulnerability.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.ashikagabank.co.jp/appbanking/pdf/oshirase.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "https://www.hokkaidobank.co.jp/common/dat/2020/0120/15795047141946146699.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.hokugin.co.jp/info/archives/personal/2020/1913.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.naganobank.co.jp/soshiki/2/app-ssl.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "https://www.shikokubank.co.jp/info/apps20200128.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://www.sihd-bk.jp/common_v2/pdf/20200127.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://www.tohoku-bank.co.jp/news/topics/200128_applissl.html"
    }
  ],
  "sourceIdentifier": "vultures@jpcert.or.jp",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.