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 month ago

Remediation Templates

# Remediation is applicable only in certain platforms
if rpm --quiet -q kernel; 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',
  }
}

- name: Gather the package facts
  package_facts:
    manager: auto
  tags:
  - disable_strategy
  - low_complexity  - low_disruption
  - no_reboot_needed
  - service_rpcgssd_disabled
  - unknown_severity
- name: Disable Secure RPC Client Service (rpcgssd) - Collect systemd Services Present
    in the System
  ansible.builtin.command: systemctl -q list-unit-files --type service
  register: service_exists
  changed_when: false
  failed_when: service_exists.rc not in [0, 1]
  check_mode: false
  when: '"kernel" in ansible_facts.packages'
  tags:
  - disable_strategy
  - low_complexity
  - low_disruption
  - no_reboot_needed
  - service_rpcgssd_disabled
  - unknown_severity

- name: Disable Secure RPC Client Service (rpcgssd) - Ensure rpcgssd.service is Masked
  ansible.builtin.systemd:
    name: rpcgssd.service
    state: stopped
    enabled: false
    masked: true
  when:
  - '"kernel" in ansible_facts.packages'
  - service_exists.stdout_lines is search("rpcgssd.service", multiline=True)
  tags:
  - disable_strategy
  - low_complexity
  - low_disruption
  - no_reboot_needed
  - service_rpcgssd_disabled
  - unknown_severity

- name: Unit Socket Exists - rpcgssd.socket
  ansible.builtin.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: '"kernel" in ansible_facts.packages'
  tags:
  - disable_strategy
  - low_complexity
  - low_disruption
  - no_reboot_needed
  - service_rpcgssd_disabled
  - unknown_severity

- name: Disable Secure RPC Client Service (rpcgssd) - Disable Socket rpcgssd
  ansible.builtin.systemd:
    name: rpcgssd.socket
    enabled: false
    state: stopped
    masked: true
  when:
  - '"kernel" in ansible_facts.packages'
  - 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

service disable rpcgssd

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]
masked = ["rpcgssd"]

Disable Secure RPC Client Service (rpcgssd)

Description

Remediation Templates

A Shell Script

A Puppet Snippet

An Ansible Snippet

script:kickstart

A Kubernetes Patch

OS Build Blueprint