Party Track SDK for iOS fails to verify server certificates


Party Track SDK for iOS provided by Adways Inc. fails to verify server certificates in encrypted HTTPS communications.
According to the developer, in addition to communications by the SDK, communications by the application using NSURLConnection also fail to verify server certificates.

ma.la of LINE Corporation 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

Adways Inc.
  • Party Track SDK versions prior to 1.6.6

Applications built with the above product are affected by this vulnerability.

A man-in-the-middle attack may result in an attacker to eavesdrop or alter an encrypted communication.

[Update SDK and rebuild the application]
Update to the latest version of Party Track SDK and rebuild the application according to the information provided by Adways Inc.
Vendor Information

CWE (What is CWE?)

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

  1. CVE-2015-5655

  1. JVN : JVN#48211537
  2. National Vulnerability Database (NVD) : CVE-2015-5655
Revision History

  • [2015/10/14]
      Web page was published
      Overview was modified
      References : Content was added