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The Bluetooth protocol handler must be disabled or not installed.


Overview

Finding ID Version Rule ID IA Controls Severity
V-22539 GEN007660 SV-45979r1_rule Medium
Description
Bluetooth is a Personal Area Network (PAN) technology. Binding this protocol to the network stack increases the attack surface of the host. Unprivileged local processes may be able to cause the kernel to dynamically load a protocol handler by opening a socket using the protocol.
STIG Date
SUSE Linux Enterprise Server v11 for System z 2016-12-20

Details

Check Text ( C-43261r1_chk )
Verify the Bluetooth protocol handler is prevented from dynamic loading.
# grep 'install bluetooth' /etc/modprobe.conf /etc/modprobe.conf.local /etc/modprobe.d/* | grep ‘/bin/true’

If no result is returned, this is a finding.
Fix Text (F-39344r1_fix)
Prevent the Bluetooth protocol handler for dynamic loading.
# echo "install bluetooth /bin/true" >> /etc/modprobe.conf.local