Disable Secure RPC Client Service (rpcgssd)

An XCCDF Rule

Description

The rpcgssd service manages RPCSEC GSS contexts required to secure protocols that use RPC (most often Kerberos and NFS). The rpcgssd service is the client-side of RPCSEC GSS. If the system does not require secure RPC then this service should be disabled. The rpcgssd service can be disabled with the following command:

$ sudo systemctl mask --now rpcgssd.service

ID: xccdf_org.ssgproject.content_rule_service_rpcgssd_disabled
Severity: Unknown
Updated: about 1 year ago

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


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

- name: Block Disable service rpcgssd
  block:

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

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

- name: Unit Socket Exists - rpcgssd.socket
  command: systemctl -q list-unit-files rpcgssd.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:
  - disable_strategy
  - low_complexity
  - low_disruption
  - no_reboot_needed
  - service_rpcgssd_disabled
  - unknown_severity

- name: Disable socket rpcgssd
  systemd:
    name: rpcgssd.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("rpcgssd.socket",multiline=True)
  tags:
  - disable_strategy
  - low_complexity
  - low_disruption
  - no_reboot_needed
  - service_rpcgssd_disabled
  - unknown_severity

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

SYSTEMCTL_EXEC='/usr/bin/systemctl'
"$SYSTEMCTL_EXEC" stop 'rpcgssd.service'
"$SYSTEMCTL_EXEC" disable 'rpcgssd.service'"$SYSTEMCTL_EXEC" mask 'rpcgssd.service'
# Disable socket activation if we have a unit file for it
if "$SYSTEMCTL_EXEC" -q list-unit-files rpcgssd.socket; then
    "$SYSTEMCTL_EXEC" stop 'rpcgssd.socket'
    "$SYSTEMCTL_EXEC" mask 'rpcgssd.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 'rpcgssd.service' || true

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

include disable_rpcgssd

class disable_rpcgssd {
  service {'rpcgssd':
    enable => false,
    ensure => 'stopped',  }
}

Disable Secure RPC Client Service (rpcgssd)

Description

Remediation - Kubernetes Patch

Remediation - OS Build Blueprint

Remediation - Ansible

Remediation - Shell Script

Remediation - Puppet