DMM Movie Player App fails to verify SSL server certificates


DMM Movie Player App provided by DMM.com Labo Co.,Ltd. fails to verify SSL server certificates.

Yuji Tounai of NTT Com Security (Japan) KK 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 4.8 (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

DMM.com Labo Co.,Ltd.
  • Movie Player App for Android versions prior to 1.2.1
  • Movie Player App for iPhone/iPad versions prior to 2.1.3


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

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

DMM.com Labo Co.,Ltd.
CWE (What is CWE?)

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

  1. CVE-2016-4829

  1. JVN : JVN#39594409
  2. National Vulnerability Database (NVD) : CVE-2016-4829
Revision History

  • [2016/06/27]
      Web page was published
      References : Content was added