Published:2024/08/20  Last Updated:2024/08/20

JVN#56648919
"Rakuten Ichiba App" fails to restrict custom URL schemes properly

Overview

"Rakuten Ichiba App" provided by Rakuten Group, Inc. fails to restrict custom URL schemes properly.

Products Affected

  • "Rakuten Ichiba App" for Android versions 12.4.0 and earlier
  • "Rakuten Ichiba App" for iOS versions 11.7.0 and earlier

Description

"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.

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 Status

Vendor Status Last Update Vendor Notes
Rakuten Group, Inc. Vulnerable 2024/08/20

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

CVSS v3 CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
Base Score: 3.1
Attack Vector(AV) Physical (P) Local (L) Adjacent (A) Network (N)
Attack Complexity(AC) High (H) Low (L)
Privileges Required(PR) High (H) Low (L) None (N)
User Interaction(UI) Required (R) None (N)
Scope(S) Unchanged (U) Changed (C)
Confidentiality Impact(C) None (N) Low (L) High (H)
Integrity Impact(I) None (N) Low (L) High (H)
Availability Impact(A) None (N) Low (L) High (H)

Credit

Shiga Takuma of BroadBand Security,Inc reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2024-41918
JVN iPedia JVNDB-2024-000085

Update History

2024/08/20
Information under the section [Credit] was updated