[Japanese]

JVNDB-2024-000085

"Rakuten Ichiba App" fails to restrict custom URL schemes properly

Overview

"Rakuten Ichiba App" provided by Rakuten Group, 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.

Shiga Takuma of BroadBand Security, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 3.1 (Low) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: High
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: None
  • Integrity Impact: Low
  • Availability Impact: None
Affected Products


Rakuten Group, Inc.
  • "Rakuten Ichiba App" for Android versions 12.4.0 and earlier
  • "Rakuten Ichiba App" for iOS versions 11.7.0 and earlier

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.
Vendor Information

Rakuten Group, Inc.
CWE (What is CWE?)

  1. Permissions(CWE-264) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2024-41918
References

  1. JVN : JVN#56648919
Revision History

  • [2024/08/20]
      Web page was published

Date Public2024/08/20
Date First Published2024/08/20
Date Last Updated2024/08/20