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The Transparent Inter-Process Communication (TIPC) protocol must be disabled unless required.


Overview

Finding ID Version Rule ID IA Controls Severity
V-38517 RHEL-06-000127 SV-50318r5_rule Medium
Description
Disabling TIPC protects the system against exploitation of any flaws in its implementation.
STIG Date
Red Hat Enterprise Linux 6 Security Technical Implementation Guide 2018-11-28

Details

Check Text ( C-46074r5_chk )
If the system is configured to prevent the loading of the "tipc" kernel module, it will contain lines inside any file in "/etc/modprobe.d" or the deprecated"/etc/modprobe.conf". These lines instruct the module loading system to run another program (such as "/bin/true") upon a module "install" event. Run the following command to search for such lines in all files in "/etc/modprobe.d" and the deprecated "/etc/modprobe.conf":

$ grep -r tipc /etc/modprobe.conf /etc/modprobe.d | grep -i “/bin/true”| grep -v “#”

If no line is returned, this is a finding.
Fix Text (F-43464r3_fix)
The Transparent Inter-Process Communication (TIPC) protocol is designed to provide communications between nodes in a cluster. To configure the system to prevent the "tipc" kernel module from being loaded, add the following line to a file in the directory "/etc/modprobe.d":

install tipc /bin/true