The Bluetooth protocol handler must be disabled or not installed.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22539	GEN007660	SV-63447r1_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
Oracle Linux 5 Security Technical Implementation Guide	2020-02-25

Details

Check Text ( C-52145r1_chk )
Verify the Bluetooth protocol handler is prevented from dynamic loading. # grep 'install bluetooth /bin/true' /etc/modprobe.conf /etc/modprobe.d/* If no result is returned, this is a finding.

Fix Text (F-54053r1_fix)
Prevent the Bluetooth protocol handler for dynamic loading. # echo "install bluetooth /bin/true" >> /etc/modprobe.conf