[Japanese]

JVNDB-2017-000023

TVer App for Android fails to verify SSL server certificates

Overview

TVer App for Android provided by PRESENTCAST INC. fails to verify SSL server certificates.

Yuto Iso of NTT 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


PRESENTCAST INC.
  • TVer App for Android ver3.2.7 and earlier

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

PRESENTCAST INC.
CWE (What is CWE?)

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

  1. CVE-2017-2105
References

  1. JVN : JVN#53880182
  2. National Vulnerability Database (NVD) : CVE-2017-2105
Revision History

  • [2017/02/10]
      Web page was published
    [2017/06/06]
      References : Content was added

Date Public2017/02/10
Date First Published2017/02/10
Date Last Updated2017/06/06