Disable RPC ID Mapping Service (rpcidmapd)

An XCCDF Rule

Description

The rpcidmapd service is used to map user names and groups to UID and GID numbers on NFSv4 mounts. If NFS is not in use on the local system then this service should be disabled. The rpcidmapd service can be disabled with the following command:

$ sudo systemctl mask --now rpcidmapd.service

ID: xccdf_org.ssgproject.content_rule_service_rpcidmapd_disabled
Severity: Unknown
References: CCE-80231-4
Updated: about 1 year ago

apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
spec:
  config:
    ignition:
      version: 3.1.0    systemd:
      units:
      - name: rpcidmapd.service
        enabled: false
        mask: true
      - name: rpcidmapd.socket
        enabled: false
        mask: true


[customizations.services]
disabled = ["rpcidmapd"]

include disable_rpcidmapd

class disable_rpcidmapd {
  service {'rpcidmapd':
    enable => false,
    ensure => 'stopped',  }
}

# Remediation is applicable only in certain platforms
if [ ! -f /.dockerenv ] && [ ! -f /run/.containerenv ]; then

SYSTEMCTL_EXEC='/usr/bin/systemctl'
"$SYSTEMCTL_EXEC" stop 'rpcidmapd.service'
"$SYSTEMCTL_EXEC" disable 'rpcidmapd.service'"$SYSTEMCTL_EXEC" mask 'rpcidmapd.service'
# Disable socket activation if we have a unit file for it
if "$SYSTEMCTL_EXEC" -q list-unit-files rpcidmapd.socket; then
    "$SYSTEMCTL_EXEC" stop 'rpcidmapd.socket'
    "$SYSTEMCTL_EXEC" mask 'rpcidmapd.socket'
fi
# The service may not be running because it has been started and failed,
# so let's reset the state so OVAL checks pass.
# Service should be 'inactive', not 'failed' after reboot though.
"$SYSTEMCTL_EXEC" reset-failed 'rpcidmapd.service' || true

else
    >&2 echo 'Remediation is not applicable, nothing was done'
fi

- name: Block Disable service rpcidmapd
  block:

  - name: Disable service rpcidmapd
    block:
    - name: Disable service rpcidmapd
      systemd:
        name: rpcidmapd.service
        enabled: 'no'
        state: stopped
        masked: 'yes'
    rescue:

    - name: Intentionally ignored previous 'Disable service rpcidmapd' failure, service
        was already disabled
      meta: noop
  when: ansible_virtualization_type not in ["docker", "lxc", "openvz", "podman", "container"]
  tags:
  - CCE-80231-4
  - disable_strategy
  - low_complexity
  - low_disruption
  - no_reboot_needed
  - service_rpcidmapd_disabled
  - unknown_severity

- name: Unit Socket Exists - rpcidmapd.socket
  command: systemctl -q list-unit-files rpcidmapd.socket
  register: socket_file_exists
  changed_when: false
  failed_when: socket_file_exists.rc not in [0, 1]
  check_mode: false
  when: ansible_virtualization_type not in ["docker", "lxc", "openvz", "podman", "container"]
  tags:
  - CCE-80231-4
  - disable_strategy
  - low_complexity
  - low_disruption
  - no_reboot_needed
  - service_rpcidmapd_disabled
  - unknown_severity

- name: Disable socket rpcidmapd
  systemd:
    name: rpcidmapd.socket
    enabled: 'no'
    state: stopped
    masked: 'yes'
  when:
  - ansible_virtualization_type not in ["docker", "lxc", "openvz", "podman", "container"]
  - socket_file_exists.stdout_lines is search("rpcidmapd.socket",multiline=True)
  tags:
  - CCE-80231-4
  - disable_strategy
  - low_complexity
  - low_disruption
  - no_reboot_needed
  - service_rpcidmapd_disabled
  - unknown_severity

Disable RPC ID Mapping Service (rpcidmapd)

Description

Remediation - Kubernetes Patch

Remediation - OS Build Blueprint

Remediation - Puppet

Remediation - Shell Script

Remediation - Ansible