SumaHo for Android fails to verify SSL/TLS server certificates


SumaHo for Android fails to verify SSL/TLS 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?)

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

Mitsui Sumitomo Insurance Co., Ltd.
  • SumaHo for Android ver3.0.0 and earlier
  • SumaHo "driving capability"diagnosis result transmission for Android ver1.2.2 and earlier


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

[Update the Software]
Apply the appropriate update according to the information provided by the developer.
Vendor Information

Mitsui Sumitomo Insurance Co., Ltd.
CWE (What is CWE?)

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

  1. CVE-2014-7242

  1. JVN : JVN#27388160
  2. National Vulnerability Database (NVD) : CVE-2014-7242
Revision History

  • [2014/10/23]
      Web page was published
  • [2018/03/07]
      References : Content was added