Executive Summary

Title TrackR Bravo contains multiple vulnerabilities
Name VU#617567 First vendor Publication 2016-10-25
Vendor VU-CERT Last vendor Modification 2016-10-27
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:A/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 5.8 Attack Range Adjacent network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 6.5 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


Vulnerability Note VU#617567

TrackR Bravo contains multiple vulnerabilities

Original Release date: 25 Oct 2016 | Last revised: 27 Oct 2016


TrackR Bravo contains multiple vulnerabilities including sensitive information exposure and missing authentication.


CWE-313: Cleartext Storage in a File or on Disk - CVE-2016-6538

The TrackR Bravo 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-2016-6539
The Trackr device ID is constructed of a manufacturer identifier of four zeroes followed by the BLE MAC address in reverse. The MAC address can be obtained by being in close proximity to the Bluetooth device, effectively exposing the device ID. The ID can be used to track devices.

CWE-306: Missing Authentication for Critical Function - CVE-2016-6540
Unauthenticated access to the cloud-based service maintained by the vendor is allowed for querying or sending GPS data for any Trackr device by using the tracker ID number which can be discovered as described in CVE-2016-6539.

CWE-306: Missing Authentication for Critical Function - CVE-2016-6541
TrackR Bravo device allows unauthenticated pairing, which enables unauthenticated connected applications to write to various device attributes.

The CVSS Score below represents CVE-2016-6540


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


Apply an update

Updated apps, version 5.1.6 for iOS and 2.2.5 for Android, have been released by the vendor to address these vulnerabilities. See the vendor statement for more details.

Use with caution

If a user is unable to apply an update, they should practice caution as to where these devices are used.

Vendor Information (Learn More)

VendorStatusDate NotifiedDate Updated
TrackRAffected13 Sep 201627 Oct 2016
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)



  • https://www.thetrackr.com/bravo
  • 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-2016-6538CVE-2016-6539CVE-2016-6540CVE-2016-6541
  • Date Public:25 Oct 2016
  • Date First Published:25 Oct 2016
  • Date Last Updated:27 Oct 2016
  • Document Revision:35


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/617567

CWE : Common Weakness Enumeration

% Id Name
60 % CWE-200 Information Exposure
20 % CWE-287 Improper Authentication
20 % CWE-255 Credentials Management

CPE : Common Platform Enumeration

Os 2
Os 2

Alert History

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Date Informations
2018-09-04 21:22:39
  • Multiple Updates
2018-07-07 00:21:05
  • Multiple Updates
2016-10-27 21:24:12
  • Multiple Updates
2016-10-25 21:19:58
  • Multiple Updates
2016-10-25 17:22:56
  • First insertion