Disable rlogin Service

An XCCDF Rule

Description

The rlogin service, which is available with the rsh-server package and runs as a service through xinetd or separately as a systemd socket, should be disabled. If using xinetd, set disable to yes in /etc/xinetd.d/rlogin. The rlogin socket can be disabled with the following command:

$ sudo systemctl mask --now rlogin.socket

Rationale

The rlogin service uses unencrypted network communications, which means that data from the login session, including passwords and all other information transmitted during the session, can be stolen by eavesdroppers on the network.

ID: xccdf_org.ssgproject.content_rule_service_rlogin_disabled
Severity: High
References: 1 11 12 14 15 16 3 5 8 9

APO13.01 BAI10.01 BAI10.02 BAI10.03 BAI10.05 DSS01.04 DSS05.02 DSS05.03 DSS05.04 DSS05.05 DSS05.07 DSS05.10 DSS06.03 DSS06.06 DSS06.10

3.1.13 3.4.7

CCI-001436

164.308(a)(4)(i) 164.308(b)(1) 164.308(b)(3) 164.310(b) 164.312(e)(1) 164.312(e)(2)(ii)

4.3.3.2.2 4.3.3.5.1 4.3.3.5.2 4.3.3.5.3 4.3.3.5.4 4.3.3.5.5 4.3.3.5.6 4.3.3.5.7 4.3.3.5.8 4.3.3.6.1 4.3.3.6.2 4.3.3.6.3 4.3.3.6.4 4.3.3.6.5 4.3.3.6.6 4.3.3.6.7 4.3.3.6.8 4.3.3.6.9 4.3.3.7.1 4.3.3.7.2 4.3.3.7.3 4.3.3.7.4 4.3.4.3.2 4.3.4.3.3

SR 1.1 SR 1.10 SR 1.11 SR 1.12 SR 1.13 SR 1.2 SR 1.3 SR 1.4 SR 1.5 SR 1.6 SR 1.7 SR 1.8 SR 1.9 SR 2.1 SR 2.2 SR 2.3 SR 2.4 SR 2.5 SR 2.6 SR 2.7 SR 3.1 SR 3.5 SR 3.8 SR 4.1 SR 4.3 SR 5.1 SR 5.2 SR 5.3 SR 7.1 SR 7.6

A.11.2.6 A.12.1.2 A.12.5.1 A.12.6.2 A.13.1.1 A.13.2.1 A.14.1.3 A.14.2.2 A.14.2.3 A.14.2.4 A.18.1.4 A.6.2.1 A.6.2.2 A.7.1.1 A.9.1.2 A.9.2.1 A.9.2.2 A.9.2.3 A.9.2.4 A.9.2.6 A.9.3.1 A.9.4.2 A.9.4.3

CM-6(a) CM-7(a) CM-7(b) IA-5(1)(c)

PR.AC-1 PR.AC-3 PR.AC-6 PR.AC-7 PR.IP-1 PR.PT-3 PR.PT-4

CCE-88395-9
Updated: about 1 month ago

Remediation Templates

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

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

include disable_rlogin
class disable_rlogin {
  service {'rlogin':
    enable => false,
    ensure => 'stopped',
  }
}

service disable rlogin

- name: Gather the package facts
  package_facts:
    manager: auto
  tags:
  - CCE-88395-9
  - NIST-800-171-3.1.13  - NIST-800-171-3.4.7
  - NIST-800-53-CM-6(a)
  - NIST-800-53-CM-7(a)
  - NIST-800-53-CM-7(b)
  - NIST-800-53-IA-5(1)(c)
  - disable_strategy
  - high_severity
  - low_complexity
  - low_disruption
  - no_reboot_needed
  - service_rlogin_disabled
- name: Disable rlogin Service - 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:
  - CCE-88395-9
  - NIST-800-171-3.1.13
  - NIST-800-171-3.4.7
  - NIST-800-53-CM-6(a)
  - NIST-800-53-CM-7(a)
  - NIST-800-53-CM-7(b)
  - NIST-800-53-IA-5(1)(c)
  - disable_strategy
  - high_severity
  - low_complexity
  - low_disruption
  - no_reboot_needed
  - service_rlogin_disabled

- name: Disable rlogin Service - Ensure rlogin.service is Masked
  ansible.builtin.systemd:
    name: rlogin.service
    state: stopped
    enabled: false
    masked: true
  when:
  - '"kernel" in ansible_facts.packages'
  - service_exists.stdout_lines is search("rlogin.service", multiline=True)
  tags:
  - CCE-88395-9
  - NIST-800-171-3.1.13
  - NIST-800-171-3.4.7
  - NIST-800-53-CM-6(a)
  - NIST-800-53-CM-7(a)
  - NIST-800-53-CM-7(b)
  - NIST-800-53-IA-5(1)(c)
  - disable_strategy
  - high_severity
  - low_complexity
  - low_disruption
  - no_reboot_needed
  - service_rlogin_disabled

- name: Unit Socket Exists - rlogin.socket
  ansible.builtin.command: systemctl -q list-unit-files rlogin.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:
  - CCE-88395-9
  - NIST-800-171-3.1.13
  - NIST-800-171-3.4.7
  - NIST-800-53-CM-6(a)
  - NIST-800-53-CM-7(a)
  - NIST-800-53-CM-7(b)
  - NIST-800-53-IA-5(1)(c)
  - disable_strategy
  - high_severity
  - low_complexity
  - low_disruption
  - no_reboot_needed
  - service_rlogin_disabled

- name: Disable rlogin Service - Disable Socket rlogin
  ansible.builtin.systemd:
    name: rlogin.socket
    enabled: false
    state: stopped
    masked: true
  when:
  - '"kernel" in ansible_facts.packages'
  - socket_file_exists.stdout_lines is search("rlogin.socket", multiline=True)
  tags:
  - CCE-88395-9
  - NIST-800-171-3.1.13
  - NIST-800-171-3.4.7
  - NIST-800-53-CM-6(a)
  - NIST-800-53-CM-7(a)
  - NIST-800-53-CM-7(b)
  - NIST-800-53-IA-5(1)(c)
  - disable_strategy
  - high_severity
  - low_complexity
  - low_disruption
  - no_reboot_needed
  - service_rlogin_disabled

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

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

Disable rlogin Service

Description

Rationale

Remediation Templates

OS Build Blueprint

A Kubernetes Patch

A Puppet Snippet

script:kickstart

An Ansible Snippet

A Shell Script