Smartphone Passbook fails to verify SSL server certificates


Smartphone Passbook provided by Ogaki Kyoritsu bank Ltd. fails to verify SSL server certificates.

Hiroshi Kumagai reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

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

Ogaki Kyoritsu bank Ltd.
  • Smartphone Passbook Ver.1.0.0


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

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

Ogaki Kyoritsu bank Ltd.
CWE (What is CWE?)

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

  1. CVE-2015-0874

  1. JVN : JVN#14522790
Revision History

  Web page was published
  Vendor Information : Content was modified