Control: 3.24 Ensure that the Containerd socket file permissions are set to 660 or more restrictively
Description
You should verify that the Containerd socket file has permissions of 660
or are configured more restrictively.
Only root and the members of the root
group should be allowed to read and write to the default Containerd Unix socket. The Containerd socket file should therefore have permissions of 660
or more restrictive permissions.
Remediation
You should execute the following command
chmod 660 /run/containerd/containerd.sock
This sets the file permissions of the Containerd socket file to 660
.
Default Value
By default, the permissions for the Containerd socket file is correctly set to 660
.
Usage
Run the control in your terminal:
powerpipe control run docker_compliance.control.cis_v160_3_24
Snapshot and share results via Turbot Pipes:
powerpipe loginpowerpipe control run docker_compliance.control.cis_v160_3_24 --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, stderr_output, _ctx ->> 'connection_name' as conn from exec_command, os_output where os_conn = _ctx ->> 'connection_name' and command = 'stat -c %a /run/containerd/containerd.sock')select host as resource, case when os.os ilike '%Darwin%' then 'skip' when o.stderr_output like '%No such file or directory%' then 'skip' when o.stdout_output like '%660%' or o.stdout_output like '%600%' then 'ok' else 'alarm' end as status, case when os.os ilike '%Darwin%' then host || ' /run/containerd/containerd.sock does not exist on ' || os.os || ' OS.' when o.stderr_output like '%No such file or directory%' then host || ' recommendation is not applicable as the file is unavailable.' else host || ' containerd socket file permission set to ' || (btrim(o.stdout_output, E' \n\r\t')) || '.' end as reason , h._ctx ->> 'connection_name' as connection_namefrom hostname as h, os_output as os, linux_output as owhere os.os_conn = h.host_conn and h.host_conn = o.conn;