[Japanese]

JVNDB-2020-000062

Yodobashi App for Android fails to restrict access permissions

Overview

Yodobashi App for Android provided by Yodobashi Camera Co.,Ltd. implements the function to access a requested URL using an Intent. This function contains an improper access control vulnerability (CWE-284) that may allow the vulnerable App to receive an Intent from an arbitrary App and to access an arbitrary URL requested by an Intent.

Satoru Nagaoka of Cyber Defense Institute, 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 4.3 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: None
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 4.3 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products


YODOBASHI CAMERA CO.,LTD.
  • Yodobashi App for Android versions 1.8.7 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

YODOBASHI CAMERA CO.,LTD.
CWE (What is CWE?)

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

  1. CVE-2020-5627
References

  1. JVN : JVN#32396594
  2. National Vulnerability Database (NVD) : CVE-2020-5627
Revision History

  • [2020/09/07]
      Web page was published

Date Public2020/09/07
Date First Published2020/09/07
Date Last Updated2020/09/07