Control: 3.23 Ensure that the Containerd socket file ownership is set to root:root
Description
You should verify that the Containerd socket file is owned by root
and group owned by root
.
Containerd is an underlying component used by Docker to create and manage containers. It provides a socket file similar to the Docker socket, which must be protected from unauthorized access. If any other user or process owns this socket, it might be possible for that non-privileged user or process to interact with the Containerd daemon. Additionally, in this case a non-privileged user or process might be able to interact with containers which is neither a secure nor desired behavior.
Unlike the Docker socket, there is usually no requirement for non-privileged users to
connect to the socket, so the ownership should be root:root
.
Remediation
You should execute the following command
chown root:root /run/containerd/containerd.sock
This sets the ownership to root
and group ownership to root for the default Containerd socket file.
Default Value
By default, the ownership and group ownership for the Containerd socket file is correctly set to root:root
Usage
Run the control in your terminal:
powerpipe control run docker_compliance.control.cis_v160_3_23
Snapshot and share results via Turbot Pipes:
powerpipe loginpowerpipe control run docker_compliance.control.cis_v160_3_23 --share
SQL
This control uses a named query:
exec_ownership_root_root_docker_containerd_socket