[Japanese]

JVNDB-2018-000100

+Message App fails to verify SSL server certificates

Overview

+Message App fails to verify SSL server certificates.

ma.la of LINE Corporation reported this vulnerability to the developer, and also to IPA in order to notify users of its solution through JVN.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 4.8 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: High
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 4.0 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: High
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products


KDDI
  • +Message (PlusMessage) App for Android prior to version 1.0.6
  • +Message (PlusMessage) App for iOS prior to version 1.1.23
SoftBank
  • +Message (PlusMessage) App for Android prior to version 10.1.7
  • +Message (PlusMessage) App for iOS prior to version 1.1.23
NTT DOCOMO, INC.
  • +Message (PlusMessage) App for Android prior to version 42.40.2800
  • +Message (PlusMessage) App for iOS prior to version 1.1.23

Impact

A man-in-the-middle attack may allow an attacker to eavesdrop on an encrypted communication.
Solution

[Update the Application]
Update to the latest version according to the information provided by the developer.
Vendor Information

KDDI SoftBank NTT DOCOMO, INC.
CWE (What is CWE?)

  1. No Mapping(CWE-Other) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2018-0691
References

  1. JVN : JVN#37288228
Revision History

  • [2018/09/27]
      Web page was published
  • [2018/10/01]
      Overview was modified