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documentation_complete: true
title: 'Ensure SELinux Not Disabled in /etc/default/grub'
description: |-
SELinux can be disabled at boot time by an argument in
<tt>/etc/default/grub</tt>.
Remove any instances of <tt>selinux=0</tt> from the kernel arguments in that
file to prevent SELinux from being disabled at boot.
rationale: |-
Disabling a major host protection feature, such as SELinux, at boot time prevents
it from confining system services at boot time. Further, it increases
the chances that it will remain off during system operation.
severity: medium
identifiers:
cce@rhcos4: CCE-82666-9
cce@rhel8: CCE-80827-9
cce@rhel9: CCE-84078-5
cce@rhel10: CCE-88989-9
cce@sle15: CCE-91443-2
references:
cis-csc: 1,11,12,13,14,15,16,18,3,4,5,6,8,9
cobit5: APO01.06,APO11.04,APO13.01,BAI03.05,DSS01.05,DSS03.01,DSS05.02,DSS05.04,DSS05.05,DSS05.07,DSS06.02,DSS06.03,DSS06.06,MEA02.01
cui: 3.1.2,3.7.2
hipaa: 164.308(a)(1)(ii)(D),164.308(a)(3),164.308(a)(4),164.310(b),164.310(c),164.312(a),164.312(e)
isa-62443-2009: 4.2.3.4,4.3.3.2.2,4.3.3.3.9,4.3.3.4,4.3.3.5.1,4.3.3.5.2,4.3.3.5.3,4.3.3.5.4,4.3.3.5.5,4.3.3.5.6,4.3.3.5.7,4.3.3.5.8,4.3.3.6.1,4.3.3.6.2,4.3.3.6.3,4.3.3.6.4,4.3.3.6.5,4.3.3.6.6,4.3.3.6.7,4.3.3.6.8,4.3.3.6.9,4.3.3.7.1,4.3.3.7.2,4.3.3.7.3,4.3.3.7.4,4.3.4.4.7,4.4.2.1,4.4.2.2,4.4.2.4,4.4.3.3
isa-62443-2013: 'SR 1.1,SR 1.10,SR 1.11,SR 1.12,SR 1.13,SR 1.2,SR 1.3,SR 1.4,SR 1.5,SR 1.6,SR 1.7,SR 1.8,SR 1.9,SR 2.1,SR 2.10,SR 2.11,SR 2.12,SR 2.2,SR 2.3,SR 2.4,SR 2.5,SR 2.6,SR 2.7,SR 2.8,SR 2.9,SR 3.1,SR 3.5,SR 3.8,SR 4.1,SR 4.3,SR 5.1,SR 5.2,SR 5.3,SR 7.1,SR 7.6'
iso27001-2013: A.10.1.1,A.11.1.4,A.11.1.5,A.11.2.1,A.12.1.1,A.12.1.2,A.12.4.1,A.12.4.2,A.12.4.3,A.12.4.4,A.12.7.1,A.13.1.1,A.13.1.2,A.13.1.3,A.13.2.1,A.13.2.2,A.13.2.3,A.13.2.4,A.14.1.2,A.14.1.3,A.6.1.2,A.7.1.1,A.7.1.2,A.7.3.1,A.8.2.2,A.8.2.3,A.9.1.1,A.9.1.2,A.9.2.1,A.9.2.3,A.9.4.1,A.9.4.4,A.9.4.5
nerc-cip: CIP-003-8 R5.1.1,CIP-003-8 R5.3,CIP-004-6 R2.2.3,CIP-004-6 R2.3,CIP-007-3 R5.1,CIP-007-3 R5.1.2,CIP-007-3 R5.2,CIP-007-3 R5.3.1,CIP-007-3 R5.3.2,CIP-007-3 R5.3.3
nist: AC-3,AC-3(3)(a)
nist-csf: DE.AE-1,ID.AM-3,PR.AC-4,PR.AC-5,PR.AC-6,PR.DS-5,PR.PT-1,PR.PT-3,PR.PT-4
platform: grub2
ocil_clause: 'SELinux is disabled at boot time'
ocil: |-
Inspect <tt>/etc/default/grub</tt> for any instances of <tt>selinux=0</tt>
in the kernel boot arguments. Presence of <tt>selinux=0</tt> indicates
that SELinux is disabled at boot time.
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