Executive Summary

Title Zizai Tech Nut contains multiple vulnerabilities
Name VU#402847 First vendor Publication 2016-10-25
Vendor VU-CERT Last vendor Modification 2016-10-25
Severity (Vendor) N/A Revision M

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:N/A:N)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


Vulnerability Note VU#402847

Zizai Tech Nut contains multiple vulnerabilities

Original Release date: 25 Oct 2016 | Last revised: 25 Oct 2016


Zizai Tech Nut contains multiple vulnerabilities including sensitive information exposure and missing authentication.


CWE-313: Cleartext Storage in a File or on Disk - CVE-2016-6547

The Nut mobile app stores the account password used to authenticate to the cloud API in cleartext in the cache.db file.

CWE-200: Information Exposure - CVE-2016-6548
The Nut mobile app makes requests via HTTP instead of HTTPS. These requests contain the user's authenticated session token with the URL. An attacker can capture these requests and reuse the session token to gain full access the user's account.

CWE-306: Missing Authentication for Critical Function - CVE-2016-6549
The Nut device allows unauthenticated Bluetooth pairing, which enables unauthenticated connected applications to write data to the device name attribute.

The CVSS Score below represents CVE-2016-6548


These vulnerabilities may allow a remote attacker to track a user's location without their consent.


The CERT/CC is currently unaware of a practical solution to this problem.

Use with caution

Until the vendor supplies a patch, the user should practice caution as to where these devices are used.

Vendor Information (Learn More)

VendorStatusDate NotifiedDate Updated
Zizai TechAffected13 Sep 201625 Oct 2016
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)



  • http://nutspace.com/
  • https://community.rapid7.com/community/infosec/blog/2016/10/25/multiple-bluetooth-low-energy-ble-tracker-vulnerabilities


Thanks to Deral Heiland and Adam Compton of Rapid7, Inc. for reporting this vulnerability.

This document was written by Trent Novelly.

Other Information

  • CVE IDs:CVE-2016-6547CVE-2016-6548CVE-2016-6549
  • Date Public:25 Oct 2016
  • Date First Published:25 Oct 2016
  • Date Last Updated:25 Oct 2016
  • Document Revision:23


If you have feedback, comments, or additional information about this vulnerability, please send us email.

Original Source

Url : http://www.kb.cert.org/vuls/id/402847

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-200 Information Exposure
25 % CWE-287 Improper Authentication
25 % CWE-255 Credentials Management

CPE : Common Platform Enumeration

Application 1

Alert History

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Date Informations
2018-09-08 00:21:46
  • Multiple Updates
2018-07-14 00:21:04
  • Multiple Updates
2016-10-25 21:19:58
  • Multiple Updates
2016-10-25 17:22:56
  • First insertion