CVE-2024-27440 - Vulnerability Details - OpenCVE

Description

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.

Published: 2024-03-13

Score: 4.8 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Toyoko Inn IT Solution Co., Ltd.

Toyoko Inn official App for iOS

affected

Version	Status	Constraints
`prior to 1.13.0`	affected	—

Toyoko Inn IT Solution Co., Ltd.

Toyoko Inn official App for Android

affected

Version	Status	Constraints
`prior 1.3.14`	affected	—

No data.

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0011.

Key SSVC decision points have not yet been added.

References

Link	Providers
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
https://jvn.jp/en/jp/JVN52919306/
https://play.google.com/store/apps/details?id=com.toyoko_inn.toyokoandroid

History

No history.

Subscriptions

No data.

MITRE

Status: PUBLISHED

Assigner: jpcert

Published: 2024-03-13T05:40:22.838Z

Updated: 2024-08-05T13:41:39.271Z

Reserved: 2024-02-26T01:49:51.712Z

Link: CVE-2024-27440

Vulnrichment

Updated: 2024-08-02T00:34:52.381Z

NVD

Status : Deferred

Published: 2024-03-13T06:15:52.273

Modified: 2026-04-15T00:35:42.020

Link: CVE-2024-27440

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-295

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-27440", "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce", "state": "PUBLISHED", "assignerShortName": "jpcert", "dateReserved": "2024-02-26T01:49:51.712Z", "datePublished": "2024-03-13T05:40:22.838Z", "dateUpdated": "2024-08-05T13:41:39.271Z"}, "containers": {"cna": {"affected": [{"vendor": "Toyoko Inn IT Solution Co., Ltd.", "product": "Toyoko Inn official App for iOS", "versions": [{"version": "prior to 1.13.0", "status": "affected"}]}, {"vendor": "Toyoko Inn IT Solution Co., Ltd.", "product": "Toyoko Inn official App for Android", "versions": [{"version": "prior 1.3.14", "status": "affected"}]}], "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't properly verify server certificates, which allows a man-in-the-middle attacker to spoof servers and obtain sensitive information via a crafted certificate."}], "problemTypes": [{"descriptions": [{"description": "Improper server certificate verification", "lang": "en", "type": "text"}]}], "references": [{"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"}, {"url": "https://play.google.com/store/apps/details?id=com.toyoko_inn.toyokoandroid"}, {"url": "https://jvn.jp/en/jp/JVN52919306/"}], "providerMetadata": {"orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce", "shortName": "jpcert", "dateUpdated": "2024-03-13T05:40:22.838Z"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:34:52.381Z"}, "title": "CVE Program Container", "references": [{"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", "tags": ["x_transferred"]}, {"url": "https://play.google.com/store/apps/details?id=com.toyoko_inn.toyokoandroid", "tags": ["x_transferred"]}, {"url": "https://jvn.jp/en/jp/JVN52919306/", "tags": ["x_transferred"]}]}, {"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-295", "lang": "en", "description": "CWE-295 Improper Certificate Validation"}]}], "affected": [{"vendor": "toyoko_inn", "product": "toyoko_inn", "cpes": ["cpe:2.3:a:toyoko_inn:toyoko_inn:*:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "versions": [{"version": "0", "status": "affected", "lessThan": "1.13.0", "versionType": "custom"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2024-03-13T14:30:43.556851Z", "id": "CVE-2024-27440", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-08-05T13:41:39.271Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"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", "tags": ["x_transferred"]}, {"url": "https://play.google.com/store/apps/details?id=com.toyoko_inn.toyokoandroid", "tags": ["x_transferred"]}, {"url": "https://jvn.jp/en/jp/JVN52919306/", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:34:52.381Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2024-27440", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2024-03-13T14:30:43.556851Z"}}}], "affected": [{"cpes": ["cpe:2.3:a:toyoko_inn:toyoko_inn:*:*:*:*:*:*:*:*"], "vendor": "toyoko_inn", "product": "toyoko_inn", "versions": [{"status": "affected", "version": "0", "lessThan": "1.13.0", "versionType": "custom"}], "defaultStatus": "unknown"}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-295", "description": "CWE-295 Improper Certificate Validation"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-08-05T13:39:32.343Z"}}], "cna": {"affected": [{"vendor": "Toyoko Inn IT Solution Co., Ltd.", "product": "Toyoko Inn official App for iOS", "versions": [{"status": "affected", "version": "prior to 1.13.0"}]}, {"vendor": "Toyoko Inn IT Solution Co., Ltd.", "product": "Toyoko Inn official App for Android", "versions": [{"status": "affected", "version": "prior 1.3.14"}]}], "references": [{"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"}, {"url": "https://play.google.com/store/apps/details?id=com.toyoko_inn.toyokoandroid"}, {"url": "https://jvn.jp/en/jp/JVN52919306/"}], "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't properly verify server certificates, which allows a man-in-the-middle attacker to spoof servers and obtain sensitive information via a crafted certificate."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "text", "description": "Improper server certificate verification"}]}], "providerMetadata": {"orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce", "shortName": "jpcert", "dateUpdated": "2024-03-13T05:40:22.838Z"}}}, "cveMetadata": {"cveId": "CVE-2024-27440", "state": "PUBLISHED", "dateUpdated": "2024-08-05T13:41:39.271Z", "dateReserved": "2024-02-26T01:49:51.712Z", "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce", "datePublished": "2024-03-13T05:40:22.838Z", "assignerShortName": "jpcert"}, "dataVersion": "5.1"}

{"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't 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": "2026-04-15T00:35:42.020", "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"}]}, "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"}]}