jvndb - jvndb-2021-000064

jvndb-2021-000064

Vulnerability from jvndb

Published

2021-07-07 13:16

Modified

2021-07-07 13:16

Severity ?

4.3 (Medium) - cvssV3_0 - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Summary

GU App for Android fails to restrict access permissions

Details

GU App for Android provided by G.U. CO., LTD. contains an access restriction bypass issue (CWE-939). The App launched by a Custom URL Scheme may lead an user to access an arbitrary URL. Nao Komatsu of LAC Co., Ltd. reported this vulnerability to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

References

▼	Type	URL
	JVN	https://jvn.jp/en/jp/JVN25850723/index.html
	CVE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20777
	NVD	https://nvd.nist.gov/vuln/detail/CVE-2021-20777
	Permissions(CWE-264)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

▼	Vendor	Product
	GU.CO.,LTD.	GU

Show details on JVN DB website

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2021/JVNDB-2021-000064.html",
  "dc:date": "2021-07-07T13:16+09:00",
  "dcterms:issued": "2021-07-07T13:16+09:00",
  "dcterms:modified": "2021-07-07T13:16+09:00",
  "description": "GU App for Android provided by G.U. CO., LTD. contains an access restriction bypass issue (CWE-939). The App launched by a Custom URL Scheme may lead an user to access an arbitrary URL.\r\n\r\nNao Komatsu of LAC Co., Ltd. reported this vulnerability to IPA.\r\nJPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2021/JVNDB-2021-000064.html",
  "sec:cpe": {
    "#text": "cpe:/a:gu-global:gu",
    "@product": "GU",
    "@vendor": "GU.CO.,LTD.",
    "@version": "2.2"
  },
  "sec:cvss": [
    {
      "@score": "4.3",
      "@severity": "Medium",
      "@type": "Base",
      "@vector": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
      "@version": "2.0"
    },
    {
      "@score": "4.3",
      "@severity": "Medium",
      "@type": "Base",
      "@vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
      "@version": "3.0"
    }
  ],
  "sec:identifier": "JVNDB-2021-000064",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN25850723/index.html",
      "@id": "JVN#25850723",
      "@source": "JVN"
    },
    {
      "#text": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20777",
      "@id": "CVE-2021-20777",
      "@source": "CVE"
    },
    {
      "#text": "https://nvd.nist.gov/vuln/detail/CVE-2021-20777",
      "@id": "CVE-2021-20777",
      "@source": "NVD"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-264",
      "@title": "Permissions(CWE-264)"
    }
  ],
  "title": "GU App for Android fails to restrict access permissions"
}

cve-2021-20777

Vulnerability from cvelistv5

Published

2021-07-07 07:05

Modified

2024-08-03 17:53

Severity ?

Summary

Improper authorization in handler for custom URL scheme vulnerability in GU App for Android versions from 4.8.0 to 5.0.2 allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.

References

▼	URL	Tags
	https://jvn.jp/en/jp/JVN25850723/index.html	x_refsource_MISC

Impacted products

▼	Vendor	Product
	G.U. CO., LTD.	GU App for Android

Show details on NVD website

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:53:22.082Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://jvn.jp/en/jp/JVN25850723/index.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "GU App for Android",
          "vendor": "G.U. CO., LTD.",
          "versions": [
            {
              "status": "affected",
              "version": "versions from 4.8.0 to 5.0.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Improper authorization in handler for custom URL scheme vulnerability in GU App for Android versions from 4.8.0 to 5.0.2 allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Improper Authorization in Handler for Custom URL Scheme",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-07-07T07:05:29",
        "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "shortName": "jpcert"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://jvn.jp/en/jp/JVN25850723/index.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "vultures@jpcert.or.jp",
          "ID": "CVE-2021-20777",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "GU App for Android",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "versions from 4.8.0 to 5.0.2"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "G.U. CO., LTD."
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Improper authorization in handler for custom URL scheme vulnerability in GU App for Android versions from 4.8.0 to 5.0.2 allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Improper Authorization in Handler for Custom URL Scheme"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://jvn.jp/en/jp/JVN25850723/index.html",
              "refsource": "MISC",
              "url": "https://jvn.jp/en/jp/JVN25850723/index.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
    "cveId": "CVE-2021-20777",
    "datePublished": "2021-07-07T07:05:29",
    "dateReserved": "2020-12-17T00:00:00",
    "dateUpdated": "2024-08-03T17:53:22.082Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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