JVN#81570776
"@cosme" App fails to restrict custom URL schemes properly
Overview
"@cosme" App provided by istyle Inc. fails to restrict custom URL schemes properly.
Products Affected
- "@cosme" App for Android versions prior to 5.69.0
- "@cosme" App for iOS versions prior to 6.74.0
Description
"@cosme" App provided by istyle Inc. provides the function to access a requested URL using Custom URL Scheme. The App does not restrict access to the function properly (CWE-939) which may be exploited to direct the App to access any sites.
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.
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
Credit
Pantuhong Sorasiri of LAC Co., Ltd. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
Other Information
JPCERT Alert |
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JPCERT Reports |
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CERT Advisory |
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CPNI Advisory |
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TRnotes |
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CVE |
CVE-2024-45203 |
JVN iPedia |
JVNDB-2024-000094 |