II - Mission Support Sensitive
Rules and Groups employed by this XCCDF Profile
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SRG-APP-000141
Group -
SELinux security options must be set on Red Hat or CentOS systems for Docker Enterprise.
SELinux provides a Mandatory Access Control (MAC) system on RHEL and CentOS that greatly augments the default Discretionary Access Control (DAC) model. The user can thus add an extra layer of safet...Rule Medium Severity -
SRG-APP-000141
Group -
Linux Kernel capabilities must be restricted within containers as defined in the System Security Plan (SSP) for Docker Enterprise.
By default, Docker starts containers with a restricted set of Linux Kernel Capabilities. It means that any process may be granted the required capabilities instead of root access. Using Linux Kerne...Rule Medium Severity -
SRG-APP-000141
Group -
Privileged Linux containers must not be used for Docker Enterprise.
Using the --privileged flag gives all Linux Kernel Capabilities to the container thus overwriting the --cap-add and --cap-drop flags. Ensure that it is not used. The --privileged flag gives all cap...Rule Medium Severity -
SRG-APP-000141
Group -
SSH must not run within Linux containers for Docker Enterprise.
SSH server should not be running within the container. The user should instead use Universal Control Plane (UCP) to console in to running containers. Running SSH within the container increases the...Rule Medium Severity -
SRG-APP-000141
Group -
Only required ports must be open on the containers in Docker Enterprise.
Dockerfile for a container image defines the ports to be opened by default on a container instance. The list of ports may or may not be relevant to the application running within the container. A ...Rule Medium Severity -
SRG-APP-000141
Group -
Docker Enterprise hosts network namespace must not be shared.
The networking mode on a container when set to --net=host, skips placing the container inside separate network stack. In essence, this choice tells Docker to not containerize the container's networ...Rule High Severity -
SRG-APP-000141
Group -
Memory usage for all containers must be limited in Docker Enterprise.
By default, all containers on a Docker host share the resources equally. By using the resource management capabilities of Docker host, such as memory limit, the amount of memory that a container ma...Rule Medium Severity -
SRG-APP-000141
Group -
Docker Enterprise CPU priority must be set appropriately on all containers.
By default, all containers on a Docker host share the resources equally. By using the resource management capabilities of Docker host, such as CPU shares, the user control the host CPU resources th...Rule Low Severity -
SRG-APP-000141
Group -
All Docker Enterprise containers root filesystem must be mounted as read only.
The container's root filesystem should be treated as a 'golden image' by using Docker run's --read-only option. This prevents any writes to the container's root filesystem at container runtime and ...Rule High Severity -
SRG-APP-000141
Group -
Docker Enterprise host devices must not be directly exposed to containers.
Host devices can be directly exposed to containers at runtime. Do not directly expose host devices to containers especially for containers that are not trusted. The --device option exposes the hos...Rule High Severity -
SRG-APP-000141
Group -
Mount propagation mode must not set to shared in Docker Enterprise.
Mount propagation mode allows mounting volumes in shared, slave or private mode on a container. Do not use shared mount propagation mode until needed. A shared mount is replicated at all mounts an...Rule Medium Severity -
SRG-APP-000141
Group -
The Docker Enterprise hosts UTS namespace must not be shared.
UTS namespaces provide isolation of two system identifiers: the hostname and the NIS domain name. It is used for setting the hostname and the domain that is visible to running processes in that nam...Rule Medium Severity -
SRG-APP-000141
Group -
The Docker Enterprise default seccomp profile must not be disabled.
Seccomp filtering provides a means for a process to specify a filter for incoming system calls. The default Docker seccomp profile works on whitelist basis and allows 311 system calls blocking all ...Rule High Severity -
SRG-APP-000141
Group -
Docker Enterprise exec commands must not be used with privileged option.
Do not use docker exec with --privileged option. Using --privileged option in docker exec gives extended Linux capabilities to the command. Do not run docker exec with the --privileged option, esp...Rule High Severity -
SRG-APP-000141
Group -
Docker Enterprise exec commands must not be used with the user option.
Do not docker exec with --user option. Using --user option in docker exec executes the command within the container as that user. Do not run docker exec with the --user option , especially when ru...Rule Medium Severity -
SRG-APP-000141
Group -
cgroup usage must be confirmed in Docker Enterprise.
It is possible to attach to a particular cgroup on container run. Confirming cgroup usage would ensure that containers are running under defined cgroups. System administrators typically define cgr...Rule Medium Severity -
SRG-APP-000141
Group -
All Docker Enterprise containers must be restricted from acquiring additional privileges.
Restrict the container from acquiring additional privileges via suid or sgid bits. A process can set the no_new_priv bit in the kernel. It persists across fork, clone, and execve. The no_new_priv ...Rule High Severity -
SRG-APP-000141
Group -
The Docker Enterprise hosts user namespace must not be shared.
Do not share the host's user namespaces with the containers. User namespaces ensure that a root process inside the container will be mapped to a non-root process outside the container. Sharing the...Rule High Severity -
SRG-APP-000141
Group -
The Docker Enterprise socket must not be mounted inside any containers.
The docker socket docker.sock (Linux) and \\.\pipe\docker_engine (Windows) should not be mounted inside a container, with the exception case being during the installation of Universal Control Plane...Rule High Severity -
SRG-APP-000142
Group -
Docker Enterprise privileged ports must not be mapped within containers.
The TCP/IP port numbers below 1024 are considered privileged ports. Normal users and processes are not allowed to use them for various security reasons. Docker allows a container port to be mapped ...Rule High Severity -
SRG-APP-000142
Group -
Docker Enterprise incoming container traffic must be bound to a specific host interface.
By default, Docker containers can make connections to the outside world, but the outside world cannot connect to containers. Each outgoing connection will appear to originate from one of the host m...Rule Medium Severity -
SRG-APP-000149
Group -
SAML integration must be enabled in Docker Enterprise.
Both the Universal Control Plane (UCP) and Docker Trusted Registry (DTR) components of Docker Enterprise leverage the same authentication and authorization backplane known as eNZi. The eNZi backpla...Rule Medium Severity -
SRG-APP-000175
Group -
The certificate chain used by Universal Control Plane (UCP) client bundles must match what is defined in the System Security Plan (SSP) in Docker Enterprise.
Both the UCP and Docker Trusted Registry (DTR) components of Docker Enterprise leverage the same authentication and authorization backplane known as eNZi. UCP has the ability to use external certif...Rule Medium Severity -
SRG-APP-000176
Group -
Docker Enterprise Swarm manager must be run in auto-lock mode.
Run Docker swarm manager in auto-lock mode. When Docker restarts, both the TLS key used to encrypt communication among swarm nodes, and the key used to encrypt and decrypt Raft logs on disk, are l...Rule Medium Severity -
SRG-APP-000176
Group -
Docker Enterprise secret management commands must be used for managing secrets in a Swarm cluster.
Use Docker's in-built secret management commands for managing sensitive data that which can be stored in key/value pairs. Examples include API tokens, database connection strings and credentials, S...Rule Medium Severity
Node 2
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