Ensure rsyncd service is disabled

An XCCDF Rule

Description

The rsyncd service can be disabled with the following command:

$ sudo systemctl mask --now rsyncd.service

Rationale

The rsyncd service presents a security risk as it uses unencrypted protocols for communication.

ID: xccdf_org.ssgproject.content_rule_service_rsyncd_disabled
Severity: Medium
References: 2.2 2.2.4
Updated: about 1 month ago

Remediation Templates

include disable_rsyncd
class disable_rsyncd {
  service {'rsyncd':
    enable => false,
    ensure => 'stopped',
  }
}

[customizations.services]
masked = ["rsyncd"]

# Remediation is applicable only in certain platforms
if rpm --quiet -q kernel; then
SYSTEMCTL_EXEC='/usr/bin/systemctl'
"$SYSTEMCTL_EXEC" stop 'rsyncd.service'
"$SYSTEMCTL_EXEC" disable 'rsyncd.service'
"$SYSTEMCTL_EXEC" mask 'rsyncd.service'# Disable socket activation if we have a unit file for it
if "$SYSTEMCTL_EXEC" -q list-unit-files rsyncd.socket; then
    "$SYSTEMCTL_EXEC" stop 'rsyncd.socket'
    "$SYSTEMCTL_EXEC" mask 'rsyncd.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 'rsyncd.service' || true

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

- name: Gather the package facts
  package_facts:
    manager: auto
  tags:
  - PCI-DSSv4-2.2
  - PCI-DSSv4-2.2.4  - disable_strategy
  - low_complexity
  - low_disruption
  - medium_severity
  - no_reboot_needed
  - service_rsyncd_disabled
- name: Ensure rsyncd service is disabled - 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:
  - PCI-DSSv4-2.2
  - PCI-DSSv4-2.2.4
  - disable_strategy
  - low_complexity
  - low_disruption
  - medium_severity
  - no_reboot_needed
  - service_rsyncd_disabled

- name: Ensure rsyncd service is disabled - Ensure rsyncd.service is Masked
  ansible.builtin.systemd:
    name: rsyncd.service
    state: stopped
    enabled: false
    masked: true
  when:
  - '"kernel" in ansible_facts.packages'
  - service_exists.stdout_lines is search("rsyncd.service", multiline=True)
  tags:
  - PCI-DSSv4-2.2
  - PCI-DSSv4-2.2.4
  - disable_strategy
  - low_complexity
  - low_disruption
  - medium_severity
  - no_reboot_needed
  - service_rsyncd_disabled

- name: Unit Socket Exists - rsyncd.socket
  ansible.builtin.command: systemctl -q list-unit-files rsyncd.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:
  - PCI-DSSv4-2.2
  - PCI-DSSv4-2.2.4
  - disable_strategy
  - low_complexity
  - low_disruption
  - medium_severity
  - no_reboot_needed
  - service_rsyncd_disabled

- name: Ensure rsyncd service is disabled - Disable Socket rsyncd
  ansible.builtin.systemd:
    name: rsyncd.socket
    enabled: false
    state: stopped
    masked: true
  when:
  - '"kernel" in ansible_facts.packages'
  - socket_file_exists.stdout_lines is search("rsyncd.socket", multiline=True)
  tags:
  - PCI-DSSv4-2.2
  - PCI-DSSv4-2.2.4
  - disable_strategy
  - low_complexity
  - low_disruption
  - medium_severity
  - no_reboot_needed
  - service_rsyncd_disabled

Ensure rsyncd service is disabled

Description

Rationale

Remediation Templates

A Puppet Snippet

OS Build Blueprint

A Shell Script

An Ansible Snippet