1.6.1.1 Ensure SELinux is not disabled in bootloader configuration - selinux = 0

Information

Configure SELINUX to be enabled at boot time and verify that it has not been overwritten by the grub boot parameters.

Rationale:

SELinux must be enabled at boot time in your grub configuration to ensure that the controls it provides are not overridden.

Solution

Edit /etc/default/grub and remove all instances of selinux=0 and enforcing=0 from all CMDLINE_LINUX parameters:

GRUB_CMDLINE_LINUX_DEFAULT='quiet'
GRUB_CMDLINE_LINUX=''

Run the following command to update the grub2 configuration:

# update-grub

Additional Information:

This recommendation is designed around the grub bootloader, if LILO or another bootloader is in use in your environment enact equivalent settings.

See Also

https://workbench.cisecurity.org/files/3399

Item Details

Category: ACCESS CONTROL, MEDIA PROTECTION

References: 800-53|AC-3, 800-53|AC-5, 800-53|AC-6, 800-53|MP-2, CSCv6|14.4, CSCv7|14.6

Plugin: Unix

Control ID: 2e948977c836c6b522d7f7703a7aa5999cbb082e9fa15de2f492cd051e50ce99