Improper Certificate Validation in Toyoko Inn official App

1) Improper Certificate Validation

EUVDB-ID: #VU87138

Risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-27440

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to improper certificate validation. A remote attacker can perform a man-in-the-middle (MitM) attack and eavesdrop on an encrypted communication.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Toyoko Inn official App for iOS: before 1.13.0

Toyoko Inn official App for Android: before 1.3.14

External links

http://jvn.jp/en/jp/JVN52919306/index.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.