Protecting Your Bluetooth Devices from BlueBorne

By David Schwalenberg

A new attack vector, codenamed BlueBorne, can potentially affect all devices with Bluetooth capabilities – ordinary computers, mobile phones, and IoT devices – literally billions of devices in the world today. Hackers can use this attack vector to leverage Bluetooth connections to completely take over targeted devices.

BlueBorne spreads through the air, allowing it to bypass all security measures and potentially infect even “air-gapped” networks. The attack does not require the attacker’s device and the targeted device to be paired; in fact, the targeted device does not even need to be set on discoverable mode. The BlueBorne attack vector requires no user interaction, no connection to the internet, covers multiple OS versions, and does not require any special configuration other than Bluetooth being active on the targeted device. BlueBorne is completely undetected by the user and can be used for a large range of attacks, including remote code execution and man-in-the-middle attacks, ransomware, creating IoT botnets and more.

Tenable Coverage

CVE-2017-8628, CVE-2017-1000250 and CVE-2017-1000251 cover the vulnerabilities that allow the BlueBorne attack vector to succeed in Windows and Linux environments. Tenable has released following plugins to address those CVEs:

Plugin ID Plugin Name CVE
103127 KB4038777: Windows 7 and Windows Server 2008 R2 September 2017 Cumulative Update CVE-2017-8628
103128 KB4038782: Windows 10 Version 1607 and Windows Server 2016 September 2017 Cumulative Update CVE-2017-8628
103129 KB4038783: Windows 10 Version 1511 September 2017 Cumulative Update CVE-2017-8628
103130 KB4038788: Windows 10 Version 1703 September 2017 Cumulative Update CVE-2017-8628
103131 KB4038792: Windows 8.1 and Windows Server 2012 R2 September 2017 Cumulative Update CVE-2017-8628
103140 Windows 2008 September 2017 Multiple Security Updates CVE-2017-8628
103144 CentOS 6 : kernel (CESA-2017:2681) CVE-2017-1000251
103145 CentOS 6 : bluez (CESA-2017:2685) CVE-2017-1000250
103196 CentOS 7 : kernel (CESA-2017:2679) CVE-2017-1000251
103198 Debian DSA-3972-1 : bluez – security update CVE-2017-1000250
103202 Fedora 26 : bluez (2017-fe95a5b88b) CVE-2017-1000250
103165 Oracle Linux 6 : kernel (ELSA-2017-2681) CVE-2017-1000251
103164 Oracle Linux 7 : kernel (ELSA-2017-2679) CVE-2017-1000251
103166 Oracle Linux 6 / 7 : bluez (ELSA-2017-2685) CVE-2017-1000250
103169 RHEL 6 : kernel (RHSA-2017:2681) CVE-2017-1000251
103170 RHEL 6 : kernel (RHSA-2017:2682) CVE-2017-1000251
103171 RHEL 6 : kernel (RHSA-2017:2683) CVE-2017-1000251
103208 RHEL 6 : kernel (RHSA-2017:2707) CVE-2017-1000251
103167 RHEL 7 : kernel (RHSA-2017:2679) CVE-2017-1000251
103168 RHEL 7 : kernel (RHSA-2017:2680) CVE-2017-1000251
103207 RHEL 7 : kernel (RHSA-2017:2706) CVE-2017-1000251
103206 RHEL 7 : kernel-rt (RHSA-2017:2704) CVE-2017-1000251
103172 RHEL 6 / 7 : bluez (RHSA-2017:2685) CVE-2017-1000250
103174 Scientific Linux Security Update : kernel on SL6.x i386/x86_64 CVE-2017-1000251
103175 Scientific Linux Security Update : kernel on SL7.x x86_6 CVE-2017-1000251
103173 Scientific Linux Security Update : bluez on SL6.x, SL7.x i386/x86_64 CVE-2017-1000250
103187 Ubuntu 14.04 LTS / 16.04 LTS / 17.04 : bluez vulnerability (USN-3413-1) CVE-2017-1000250

To find your vulnerable systems, in the Vulnerability Workbench, click on “Advanced” and do a search for CVE equal to “CVE-2017-8628,CVE-2017-1000250,CVE-2017-1000251” (note that there are no spaces after the commas):

Additional vulnerability detection plugins related to BlueBorne will have “BlueBorne” in their names. To do a search for these vulnerabilities, click on “Advanced” in the vulnerability workbench and do a search for Plugin name contains “blueborne” (the search is not case sensitive):

BlueBorne name search

Also note that Plugin 43830 (WMI Bluetooth Network Adapter Enumeration) can be used for finding Bluetooth network adapters on your Windows systems.

Now What?

If you’ve discovered that you have vulnerabilities that could be exploited by BlueBorne, you should update your systems as soon as possible. Microsoft has already issued security patches to all supported Windows systems, with coordinated notification on Tuesday, September 12. Patches for the various Linux OS distros have also been released. Devices running iOS 10 already have the vulnerability mitigated, but all iPhone, iPad and iPod touch devices with iOS 9.3.5 and lower, and AppleTV devices with version 7.2.2 and lower are vulnerable.

Source:: Tenable Blog