Control: 1.1.5 Ensure auditing is configured for Docker files and directories - /var/lib/docker

Description

Audit /var/lib/docker. As well as auditing the normal Linux file system and system calls, you should also audit all Docker related files and directories. The Docker daemon runs with root privileges and its behaviour depends on some key files and directories. /var/lib/docker is one such directory. As it holds all the information about containers it should be audited.

Remediation

You should add a rule for the /var/lib/docker directory. For example, Add the line as below to the /etc/audit/audit.rules file:

-a exit,always -F path=/var/lib/docker -F perm=war -k docker

Then, restart the audit daemon using the following command

systemctl restart auditd

Default Value

By default, Docker related files and directories are not audited.

Usage

Run the control in your terminal:

powerpipe control run docker_compliance.control.cis_v160_1_1_5

Snapshot and share results via Turbot Pipes:

powerpipe login
powerpipe control run docker_compliance.control.cis_v160_1_1_5 --share

SQL

This control uses a named query:

with os_output as (
  select
    btrim(stdout_output, E' \n\r\t') as os,
    _ctx ->> 'connection_name' as os_conn
  from
    exec_command
  where
    command = 'uname -s'
), hostname as (
  select
    btrim(stdout_output, E' \n\r\t') as host,
    _ctx ->> 'connection_name' as host_conn,
    _ctx
  from
    exec_command
  where
    command = 'hostname'
),

linux_output as (
  select
    stdout_output,
    _ctx ->> 'connection_name' as conn
  from
    exec_command,
    os_output
  where
    os_conn = _ctx ->> 'connection_name'
    and command = 'sudo -n auditctl -l | grep /var/lib/docker'
)
select
  host as resource,
  case
    when os.os ilike '%Darwin%' then 'skip'
    when o.stdout_output = '' then 'alarm'
    else 'ok'
  end as status,
  case
    when os.os ilike '%Darwin%' then host || ' /var/lib/docker does not exist on ' || os.os || ' OS.'
    when o.stdout_output = '' then host || ' /var/lib/docker auditing is not configured.'
    else host || ' /var/lib/docker auditing is configured.'
  end as reason
  , h._ctx ->> 'connection_name' as connection_name
from
  hostname as h,
  os_output as os,
  linux_output as o
where
  os.os_conn = h.host_conn
  and h.host_conn = o.conn;

Control: 1.1.5 Ensure auditing is configured for Docker files and directories - /var/lib/docker

Description

Remediation

Default Value

Usage

SQL

Tags