JVN#97434260: Hot Pepper Gourmet App fails to restrict access permissions

Hot Pepper Gourmet App provided by Recruit Co., Ltd. implements the function to access a requested URL using Custom URL Scheme.
This function contains an improper access control vulnerability (CWE-284) that may allow the vulnerable App to receive an request from an arbitrary App and execute access.

Impact

A remote attacker may lead a user to access an arbitrary website via the vulnerable App. As a result, the user may become a victim of a phishing attack.

Solution

Update the Application
Update the application to the latest version according to the information provided by the developer.
The developer has released the following versions.

• Hot Pepper Gourmet App for Android ver.4.111.5
• Hot Pepper Gourmet App for iOS ver.4.111.5

Products Affected

• Hot Pepper Gourmet App for Android ver.4.111.0 and earlier
• Hot Pepper Gourmet App for iOS ver.4.111.0 and earlier