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From d5673795ba2f87ae1649c84591ee13d7876af0b2 Mon Sep 17 00:00:00 2001
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From: Vojtech Polasek <vpolasek@redhat.com>
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Date: Wed, 13 Jan 2021 14:01:03 +0100
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Subject: [PATCH 1/3] add rule
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---
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.../sysctl_kernel_modules_disabled/rule.yml | 34 +++++++++++++++++++
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1 file changed, 34 insertions(+)
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create mode 100644 linux_os/guide/system/permissions/restrictions/sysctl_kernel_modules_disabled/rule.yml
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diff --git a/linux_os/guide/system/permissions/restrictions/sysctl_kernel_modules_disabled/rule.yml b/linux_os/guide/system/permissions/restrictions/sysctl_kernel_modules_disabled/rule.yml
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new file mode 100644
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index 0000000000..1811c43815
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--- /dev/null
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+++ b/linux_os/guide/system/permissions/restrictions/sysctl_kernel_modules_disabled/rule.yml
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@@ -0,0 +1,34 @@
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+documentation_complete: true
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+
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+prodtype: fedora,ol8,rhel7,rhel8
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+
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+title: 'Disable loading and unloading of kernel modules'
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+
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+description: '{{{ describe_sysctl_option_value(sysctl="kernel.modules_disabled", value="1") }}}'
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+
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+rationale: |-
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+ Malicious kernel modules can have a significant impact on system security and
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+ availability. Disabling loading of kernel modules prevents this threat. Note
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+ that once this option has been set, it cannot be reverted without doing a
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+ system reboot. Make sure that all needed kernel modules are loaded before
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+ setting this option.
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+
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+severity: medium
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+
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+identifiers:
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+ cce@rhel7: CCE-83392-1
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+ cce@rhel8: CCE-83397-0
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+
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+references:
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+ anssi: BP28(R24)
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+
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+{{{ complete_ocil_entry_sysctl_option_value(sysctl="kernel.modules_disabled", value="1") }}}
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+
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+platform: machine
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+
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+template:
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+ name: sysctl
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+ vars:
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+ sysctlvar: kernel.modules_disabled
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+ sysctlval: '1'
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+ datatype: int
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From 5e4f6a4a0b70c07488595080cfd98fdbfb02e352 Mon Sep 17 00:00:00 2001
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From: Vojtech Polasek <vpolasek@redhat.com>
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Date: Wed, 13 Jan 2021 14:01:15 +0100
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Subject: [PATCH 2/3] add rule to anssi profile
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---
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controls/anssi.yml | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/controls/anssi.yml b/controls/anssi.yml
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index 9e2b899b6d..f435459af3 100644
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--- a/controls/anssi.yml
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+++ b/controls/anssi.yml
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@@ -483,7 +483,8 @@ controls:
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sysctl kernel.modules_disabledconf:
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Prohibition of loading modules (except those already loaded to this point)
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kernel.modules_disabled = 1
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- # rules: TBD
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+ rules:
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+ - sysctl_kernel_modules_disabled
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- id: R25
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level: enhanced
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From a4a91fbb7f23854e4f80819a023c1adc4e7110c5 Mon Sep 17 00:00:00 2001
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From: Vojtech Polasek <vpolasek@redhat.com>
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Date: Thu, 14 Jan 2021 09:30:01 +0100
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Subject: [PATCH 3/3] remove cces from pool
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---
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shared/references/cce-redhat-avail.txt | 2 --
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1 file changed, 2 deletions(-)
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diff --git a/shared/references/cce-redhat-avail.txt b/shared/references/cce-redhat-avail.txt
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index 4dbec8255c..137d975a3d 100644
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--- a/shared/references/cce-redhat-avail.txt
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+++ b/shared/references/cce-redhat-avail.txt
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@@ -1,5 +1,3 @@
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-CCE-83392-1
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-CCE-83397-0
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CCE-83398-8
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CCE-83399-6
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CCE-83404-4
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