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Assessment Title
Rule Text
The Docker Enterprise hosts UTS namespace must not be shared.
Description
Discussion Text
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 namespace. Processes running within containers do not typically require to know hostname and domain name. Hence, the namespace should not be shared with the host.
Sharing the UTS namespace with the host provides full permission to the container to change the hostname of the host. This must not be allowed.
By default, all containers have the UTS namespace enabled and host UTS namespace is not shared with any container.
Sharing the UTS namespace with the host provides full permission to the container to change the hostname of the host. This must not be allowed.
By default, all containers have the UTS namespace enabled and host UTS namespace is not shared with any container.
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