Hatena Bookmark App for iOS contains an address bar spoofing vulnerability


Hatena Bookmark App for iOS provided by Hatena Co., Ltd. contains a vulnerability where the address bar displays a different URL than the URL that is being accessed.

Kenichiro Wakitani 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 3.1 (Low) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: High
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: None
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 2.6 (Low) [IPA Score]
  • Access Vector: Network
  • Access Complexity: High
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products

Hatena Co., Ltd.
  • Hatena Bookmark App for iOS Version 3.0 to 3.70


This vulnerability could be leveraged to forge the contents of the address bar for conducting phishing attacks.

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

Hatena Co., Ltd.
CWE (What is CWE?)

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

  1. CVE-2018-0560

  1. JVN : JVN#77753476
Revision History

  • [2018/04/10]
      Web page was published