[Japanese]

JVNDB-2023-000098

e-Gov Client Application fails to restrict custom URL schemes properly

Overview

e-Gov Client Application is installed, a Custom URL Scheme is configured on the system to enable invoking the product through a web browser.
This custom URL contains the information about the website which the product should access, and a crafted URL may direct the application to access an unexpected website (CWE-939).

Toyama Taku of NEC Corporation 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


Digital Agency
  • e-Gov Electronic application (Windows version) versions prior to 2.1.1.0
  • e-Gov Electronic application (macOS version) versions prior to 1.1.1.0

Impact

A crafted URL may direct the product to access an arbitrary website. As a result, the user may become a victim of a phishing attack.
Solution

[Update the Product]
Update the product to the latest version according to the information provided by the developer.
The developer released the following versions to fix the issue.
  • e-Gov Client Application (Windows version) 2.1.1.0
  • e-Gov Client Application (macOS version) 1.1.1.0
Vendor Information

Digital Agency
CWE (What is CWE?)

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

  1. CVE-2023-44689
References

  1. JVN : JVN#15808274
  2. National Vulnerability Database (NVD) : CVE-2023-44689
Revision History

  • [2023/10/06]
      Web page was published
  • [2024/05/17]
      References : Content was added