Control: 5.26 Ensure that the container is restricted from acquiring additional privileges
Description
You should restrict the container from acquiring additional privileges via suid or sgid bits.
A process can set the no_new_priv bit in the kernel and this persists across forks, clones and execve. The no_new_priv bit ensures that the process and its child processes do not gain any additional privileges via suid or sgid bits. This reduces the danger associated with many operations because the possibility of subverting privileged binaries is lessened.
Remediation
You should start your container with the options below:
docker run --rm -it --security-opt=no-new-privileges ubuntu bash
Default Value
By default, new privileges are not restricted.
Usage
Run the control in your terminal:
powerpipe control run docker_compliance.control.cis_v160_5_26Snapshot and share results via Turbot Pipes:
powerpipe loginpowerpipe control run docker_compliance.control.cis_v160_5_26 --shareSQL
This control uses a named query:
docker_container_no_new_privileges