RBB SPEED TEST App fails to verify SSL server certificates


RBB SPEED TEST App provided by IID, Inc. fails to verify SSL server certificates.

DigiGnome 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

IID, Inc.
  • RBB SPEED TEST App for Android version 2.0.3 and earlier
  • RBB SPEED TEST App for iOS version 2.1.0 and earlier


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

IID, Inc.
CWE (What is CWE?)

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

  1. CVE-2017-2278

  1. JVN : JVN#24238648
  2. National Vulnerability Database (NVD) : CVE-2017-2278
Revision History

  • [2017/07/24]
      Web page was published
      References : Content was added