Published:2015/09/11  Last Updated:2015/09/11

Japan Connected-free Wi-Fi vulnerable to script injection


Japan Connected-free Wi-Fi provided by NTT Broadband Platform, Inc. contains a script injection vulnerability.

Products Affected

  • Japan Connected-free Wi-Fi for Android 1.6.0 and earlier
  • Japan Connected-free Wi-Fi for iOS 1.0.2 and earlier


Japan Connected-free Wi-Fi provided by NTT Broadband Platform, Inc. is vulnerable to script injection when displaying malformed strings contained in SSID.


When the device running the app connects to an access point and its SSID contains malicious script, the script may be executed.


Update the Software
Update to the latest version according to the information provided by the developer.

Vendor Status

Vendor Status Last Update Vendor Notes
NTT Broadband Platform, Inc. Vulnerable 2015/09/11


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2015.09.11 (CVSS Base Metrics)

What is CVSS?

Measures Severity Description
Access Vector(AV) Local (L) Adjacent Network (A) Network (N) A vulnerability exploitable with adjacent network access requires the attacker to have access to either the broadcast or collision domain of the vulnerable software.
Access Complexity(AC) High (H) Medium (M) Low (L) The access conditions are somewhat specialized.
Authentication(Au) Multiple (M) Single (S) None (N) Authentication is not required to exploit the vulnerability.
Confidentiality Impact(C) None (N) Partial (P) Complete (C) There is considerable informational disclosure. Access to some system files is possible, but the attacker does not have control over what is obtained, or the scope of the loss is constrained.
Integrity Impact(I) None (N) Partial (P) Complete (C) Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.
Availability Impact(A) None (N) Partial (P) Complete (C) There is reduced performance or interruptions in resource availability.

Base Score:5.4


Kenta Suefusa and Tomonori Shiomi of Sprout Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2015-5630
JVN iPedia JVNDB-2015-000116