Vulnerability-Lookup

CVE-2024-27440 (GCVE-0-2024-27440)

Vulnerability from cvelistv5 – Published: 2024-03-13 05:40 – Updated: 2024-08-05 13:41

Summary

The Toyoko Inn official App for iOS versions prior to 1.13.0 and Toyoko Inn official App for Android versions prior 1.3.14 don't properly verify server certificates, which allows a man-in-the-middle attacker to spoof servers and obtain sensitive information via a crafted certificate.

Severity

4.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-03-13 14:30 UTC

CWE

Improper server certificate verification
CWE-295 - Improper Certificate Validation

Assigner

jpcert jpcert root

References

3 references

URL	Tags
https://apps.apple.com/jp/app/%E3%83%9B%E3%83%86%…
https://play.google.com/store/apps/details?id=com…
https://jvn.jp/en/jp/JVN52919306/

Impacted products

3 products

Vendor	Product	Version	CPE status
Toyoko Inn IT Solution Co., Ltd.	Toyoko Inn official App for iOS	Affected: prior to 1.13.0	guessed
Toyoko Inn IT Solution Co., Ltd.	Toyoko Inn official App for Android	Affected: prior 1.3.14	guessed
toyoko_inn	toyoko_inn	Affected: 0 , < 1.13.0 (custom) cpe:2.3:a:toyoko_inn:toyoko_inn::::::::

Show details on NVD website

JSON

To clipboard

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      "dataVersion": "5.1"
    }
  }
}

FKIE_CVE-2024-27440

Vulnerability from fkie_nvd - Published: 2024-03-13 06:15 - Updated: 2026-06-17 07:19

Severity

4.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Summary

References

	URL	Tags
	vultures@jpcert.or.jp	https://apps.apple.com/jp/app/%E3%83%9B%E3%83%86%E3%83%AB%E6%9D%B1%E6%A8%AAinn-%E6%9D%B1%E6%A8%AA%E3%82%A4%E3%83%B3-%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1439388270
	vultures@jpcert.or.jp	https://jvn.jp/en/jp/JVN52919306/
	vultures@jpcert.or.jp	https://play.google.com/store/apps/details?id=com.toyoko_inn.toyokoandroid
	af854a3a-2127-422b-91ae-364da2661108	https://apps.apple.com/jp/app/%E3%83%9B%E3%83%86%E3%83%AB%E6%9D%B1%E6%A8%AAinn-%E6%9D%B1%E6%A8%AA%E3%82%A4%E3%83%B3-%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1439388270
	af854a3a-2127-422b-91ae-364da2661108	https://jvn.jp/en/jp/JVN52919306/
	af854a3a-2127-422b-91ae-364da2661108	https://play.google.com/store/apps/details?id=com.toyoko_inn.toyokoandroid

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Toyoko Inn official App for iOS",
          "vendor": "Toyoko Inn IT Solution Co., Ltd.",
          "versions": [
            {
              "status": "affected",
              "version": "prior to 1.13.0"
            }
          ]
        },
        {
          "product": "Toyoko Inn official App for Android",
          "vendor": "Toyoko Inn IT Solution Co., Ltd.",
          "versions": [
            {
              "status": "affected",
              "version": "prior 1.3.14"
            }
          ]
        }
      ],
      "source": "vultures@jpcert.or.jp"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:toyoko_inn:toyoko_inn:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "toyoko_inn",
          "vendor": "toyoko_inn",
          "versions": [
            {
              "lessThan": "1.13.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Toyoko Inn official App for iOS versions prior to 1.13.0 and Toyoko Inn official App for Android versions prior 1.3.14 don\u0027t properly verify server certificates, which allows a man-in-the-middle attacker to spoof servers and obtain sensitive information via a crafted certificate."
    },
    {
      "lang": "es",
      "value": "La aplicaci\u00f3n oficial de Toyoko Inn para versiones de iOS anteriores a 1.13.0 y la aplicaci\u00f3n oficial de Toyoko Inn para versiones de Android anteriores a 1.3.14 no verifican correctamente los certificados del servidor, lo que permite a un atacante intermediario falsificar servidores y obtener datos e informaci\u00f3n confidencial a trav\u00e9s de un certificado elaborado."
    }
  ],
  "id": "CVE-2024-27440",
  "lastModified": "2026-06-17T07:19:54.290",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 2.5,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-27440",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-03-13T14:30:43.556851Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-03-13T06:15:52.273",
  "references": [
    {
      "source": "vultures@jpcert.or.jp",
      "url": "https://apps.apple.com/jp/app/%E3%83%9B%E3%83%86%E3%83%AB%E6%9D%B1%E6%A8%AAinn-%E6%9D%B1%E6%A8%AA%E3%82%A4%E3%83%B3-%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1439388270"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "url": "https://jvn.jp/en/jp/JVN52919306/"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "url": "https://play.google.com/store/apps/details?id=com.toyoko_inn.toyokoandroid"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://apps.apple.com/jp/app/%E3%83%9B%E3%83%86%E3%83%AB%E6%9D%B1%E6%A8%AAinn-%E6%9D%B1%E6%A8%AA%E3%82%A4%E3%83%B3-%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1439388270"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://jvn.jp/en/jp/JVN52919306/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://play.google.com/store/apps/details?id=com.toyoko_inn.toyokoandroid"
    }
  ],
  "sourceIdentifier": "vultures@jpcert.or.jp",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}

GHSA-6H99-8764-6J4P

Vulnerability from github – Published: 2024-03-13 06:30 – Updated: 2024-08-05 15:30

Details

Severity

4.8 (Medium)


                  
                    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2024-27440"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-13T06:15:52Z",
    "severity": "MODERATE"
  },
  "details": "The Toyoko Inn official App for iOS versions prior to 1.13.0 and Toyoko Inn official App for Android versions prior 1.3.14 don\u0027t properly verify server certificates, which allows a man-in-the-middle attacker to spoof servers and obtain sensitive information via a crafted certificate.",
  "id": "GHSA-6h99-8764-6j4p",
  "modified": "2024-08-05T15:30:50Z",
  "published": "2024-03-13T06:30:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27440"
    },
    {
      "type": "WEB",
      "url": "https://apps.apple.com/jp/app/%E3%83%9B%E3%83%86%E3%83%AB%E6%9D%B1%E6%A8%AAinn-%E6%9D%B1%E6%A8%AA%E3%82%A4%E3%83%B3-%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1439388270"
    },
    {
      "type": "WEB",
      "url": "https://jvn.jp/en/jp/JVN52919306"
    },
    {
      "type": "WEB",
      "url": "https://play.google.com/store/apps/details?id=com.toyoko_inn.toyokoandroid"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2024-27440

Vulnerability from gsd - Updated: 2024-02-26 06:02

Details

Aliases

CVE-2024-27440

JSON

To clipboard

{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2024-27440"
      ],
      "details": "The Toyoko Inn official App for iOS versions prior to 1.13.0 and Toyoko Inn official App for Android versions prior 1.3.14 don\u0027t properly verify server certificates, which allows a man-in-the-middle attacker to spoof servers and obtain sensitive information via a crafted certificate.",
      "id": "GSD-2024-27440",
      "modified": "2024-02-26T06:02:26.767042Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "vultures@jpcert.or.jp",
        "ID": "CVE-2024-27440",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Toyoko Inn official App for iOS",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "prior to 1.13.0"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Toyoko Inn official App for Android",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "prior 1.3.14"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Toyoko Inn IT Solution Co., Ltd."
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "The Toyoko Inn official App for iOS versions prior to 1.13.0 and Toyoko Inn official App for Android versions prior 1.3.14 don\u0027t properly verify server certificates, which allows a man-in-the-middle attacker to spoof servers and obtain sensitive information via a crafted certificate."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Improper server certificate verification"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://apps.apple.com/jp/app/%E3%83%9B%E3%83%86%E3%83%AB%E6%9D%B1%E6%A8%AAinn-%E6%9D%B1%E6%A8%AA%E3%82%A4%E3%83%B3-%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1439388270",
            "refsource": "MISC",
            "url": "https://apps.apple.com/jp/app/%E3%83%9B%E3%83%86%E3%83%AB%E6%9D%B1%E6%A8%AAinn-%E6%9D%B1%E6%A8%AA%E3%82%A4%E3%83%B3-%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1439388270"
          },
          {
            "name": "https://play.google.com/store/apps/details?id=com.toyoko_inn.toyokoandroid",
            "refsource": "MISC",
            "url": "https://play.google.com/store/apps/details?id=com.toyoko_inn.toyokoandroid"
          },
          {
            "name": "https://jvn.jp/en/jp/JVN52919306/",
            "refsource": "MISC",
            "url": "https://jvn.jp/en/jp/JVN52919306/"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "descriptions": [
          {
            "lang": "en",
            "value": "The Toyoko Inn official App for iOS versions prior to 1.13.0 and Toyoko Inn official App for Android versions prior 1.3.14 don\u0027t properly verify server certificates, which allows a man-in-the-middle attacker to spoof servers and obtain sensitive information via a crafted certificate."
          },
          {
            "lang": "es",
            "value": "La aplicaci\u00f3n oficial de Toyoko Inn para versiones de iOS anteriores a 1.13.0 y la aplicaci\u00f3n oficial de Toyoko Inn para versiones de Android anteriores a 1.3.14 no verifican correctamente los certificados del servidor, lo que permite a un atacante intermediario falsificar servidores y obtener datos e informaci\u00f3n confidencial a trav\u00e9s de un certificado elaborado."
          }
        ],
        "id": "CVE-2024-27440",
        "lastModified": "2024-03-13T12:33:51.697",
        "metrics": {},
        "published": "2024-03-13T06:15:52.273",
        "references": [
          {
            "source": "vultures@jpcert.or.jp",
            "url": "https://apps.apple.com/jp/app/%E3%83%9B%E3%83%86%E3%83%AB%E6%9D%B1%E6%A8%AAinn-%E6%9D%B1%E6%A8%AA%E3%82%A4%E3%83%B3-%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1439388270"
          },
          {
            "source": "vultures@jpcert.or.jp",
            "url": "https://jvn.jp/en/jp/JVN52919306/"
          },
          {
            "source": "vultures@jpcert.or.jp",
            "url": "https://play.google.com/store/apps/details?id=com.toyoko_inn.toyokoandroid"
          }
        ],
        "sourceIdentifier": "vultures@jpcert.or.jp",
        "vulnStatus": "Awaiting Analysis"
      }
    }
  }
}

JVNDB-2024-000029

Vulnerability from jvndb - Published: 2024-03-06 04:53 - Updated:2024-03-06 04:53

Severity

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

Summary

Toyoko Inn official App vulnerable to improper server certificate verification

Details

Toyoko Inn official App provided by Toyoko Inn IT Solution Co., Ltd. is vulnerable to improper server certificate verification (CWE-295). Ryo Nihonyanagi of BroadBand Security, Inc. 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/JVN52919306/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2024-27440
	No Mapping(CWE-Other)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

	TOYOKO INN IT SHUUKYAKU SOLUTION, CO.,LTD	Official Android app for Hotel Chain Toyoko Inn.
	TOYOKO INN IT SHUUKYAKU SOLUTION, CO.,LTD	Official iPhone app for Hotel Chain Toyoko Inn.

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2024/JVNDB-2024-000029.html",
  "dc:date": "2024-03-06T13:53+09:00",
  "dcterms:issued": "2024-03-06T13:53+09:00",
  "dcterms:modified": "2024-03-06T13:53+09:00",
  "description": "Toyoko Inn official App provided by Toyoko Inn IT Solution Co., Ltd. is vulnerable to improper server certificate verification (CWE-295).\r\n\r\nRyo Nihonyanagi of BroadBand Security, Inc. 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/2024/JVNDB-2024-000029.html",
  "sec:cpe": [
    {
      "#text": "cpe:/a:misc:toyoko_inn_it_solution_official_android_app_for_hotel_chain_toyoko_inn.",
      "@product": "Official Android app for Hotel Chain Toyoko Inn.",
      "@vendor": "TOYOKO INN IT SHUUKYAKU SOLUTION, CO.,LTD",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/a:misc:toyoko_inn_it_solution_official_iphone_app_for_hotel_chain_toyoko_inn.",
      "@product": "Official iPhone app for Hotel Chain Toyoko Inn.",
      "@vendor": "TOYOKO INN IT SHUUKYAKU SOLUTION, CO.,LTD",
      "@version": "2.2"
    }
  ],
  "sec:cvss": [
    {
      "@score": "4.0",
      "@severity": "Medium",
      "@type": "Base",
      "@vector": "AV:N/AC:H/Au:N/C:P/I:P/A:N",
      "@version": "2.0"
    },
    {
      "@score": "4.8",
      "@severity": "Medium",
      "@type": "Base",
      "@vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "@version": "3.0"
    }
  ],
  "sec:identifier": "JVNDB-2024-000029",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN52919306/index.html",
      "@id": "JVN#52919306",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2024-27440",
      "@id": "CVE-2024-27440",
      "@source": "CVE"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-Other",
      "@title": "No Mapping(CWE-Other)"
    }
  ],
  "title": "Toyoko Inn official App vulnerable to improper server certificate verification"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2024-27440 (GCVE-0-2024-27440)

FKIE_CVE-2024-27440

GHSA-6H99-8764-6J4P

GSD-2024-27440

JVNDB-2024-000029

Tags

Sightings

Nomenclature

Related by attack behaviour