Control: 1.1.8 Ensure auditing is configured for Docker files and directories - containerd.sock

Description

Audit the containerd.sock if applicable. As well as auditing the normal Linux file system and system calls, you should also audit the Docker daemon. Because this daemon runs with root privileges, it is very important to audit its activities and usage. Its behavior depends on some key files and directories with containerd.sock being one such file, and as this holds various parameters for the Docker daemon, it should be audited.

Remediation

If the file exists, a rule for it should be added. For example, Add the line as below to the /etc/audit/audit.rules file:

-w /run/containerd/containerd.sock -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. The file containerd.sock may not be present, but if it is, it should be audited.

Usage

Run the control in your terminal:

powerpipe control run docker_compliance.control.cis_v160_1_1_8

Snapshot and share results via Turbot Pipes:

powerpipe login
powerpipe control run docker_compliance.control.cis_v160_1_1_8 --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 containerd.sock'
),
linux_file_location as (
  select
    stdout_output,
    _ctx ->> 'connection_name' as conn
  from
    exec_command,
    os_output
  where
    os_conn = _ctx ->> 'connection_name'
    and command = 'grep ''containerd.sock'' /etc/containerd/config.toml'
)
select
  host as resource,
  case
    when os.os ilike '%Darwin%' then 'skip'
    when l.stdout_output = '' then 'skip'
    when o.stdout_output = '' then 'alarm'
    else 'ok'
  end as status,
  case
    when os.os ilike '%Darwin%' then host || ' /etc/containerd/config.toml does not exist on ' || os.os || ' OS.'
    when l.stdout_output = '' then host || ' recommendation is not applicable as the file is unavailable.'
    when o.stdout_output = '' then host || ' containerd.sock auditing is not configured.'
    else host || ' containerd.sock 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,
  linux_file_location as l
where
  os.os_conn = h.host_conn
  and h.host_conn = o.conn
  and h.host_conn = l.conn;

Control: 1.1.8 Ensure auditing is configured for Docker files and directories - containerd.sock

Description

Remediation

Default Value

Usage

SQL

Tags