II - Mission Support Sensitive
Rules and Groups employed by this XCCDF Profile
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SRG-APP-000516
<GroupDescription></GroupDescription>Group -
The DNS implementation must implement internal/external role separation.
<VulnDiscussion>DNS servers with an internal role only process name/address resolution requests from within the organization (i.e., internal ...Rule Medium Severity -
SRG-APP-000516
<GroupDescription></GroupDescription>Group -
The DNS must utilize valid root name servers in the local root zone file.
<VulnDiscussion>All caching name servers must be authoritative for the root zone because, without this starting point, they would have no kno...Rule Medium Severity -
SRG-APP-000516
<GroupDescription></GroupDescription>Group -
The DNS name server software must be at the latest version.
<VulnDiscussion>Each newer version of the name server software, especially the BIND software, generally is devoid of vulnerabilities found in...Rule Medium Severity -
SRG-APP-000516
<GroupDescription></GroupDescription>Group -
The DNS Name Server software must run with restricted privileges.
<VulnDiscussion>Failure to provide logical access restrictions associated with changes to application configuration may have significant effe...Rule Medium Severity -
SRG-APP-000516
<GroupDescription></GroupDescription>Group -
The IP address for hidden master authoritative name servers must not appear in the name servers set in the zone database.
<VulnDiscussion>A hidden master authoritative server is an authoritative DNS server whose IP address does not appear in the name server set f...Rule Medium Severity -
SRG-APP-000516
<GroupDescription></GroupDescription>Group -
The platform on which the name server software is hosted must be configured to respond to DNS traffic only.
<VulnDiscussion>OS configuration practices as issued by the US Computer Emergency Response Team (US CERT) and the National Institute of Stand...Rule Medium Severity -
SRG-APP-000516
<GroupDescription></GroupDescription>Group -
The platform on which the name server software is hosted must be configured to send outgoing DNS messages from a random port.
<VulnDiscussion>OS configuration practices as issued by the US Computer Emergency Response Team (US CERT) and the National Institute of Stand...Rule Medium Severity -
SRG-APP-000516
<GroupDescription></GroupDescription>Group -
The private key corresponding to the ZSK, stored on name servers accepting dynamic updates, must have appropriate directory/file-level access control list-based or cryptography-based protections.
<VulnDiscussion>The private keys in the KSK and ZSK key pairs must be protected from unauthorized access. If possible, the private keys shoul...Rule Medium Severity -
SRG-APP-000516
<GroupDescription></GroupDescription>Group -
The private keys corresponding to both the ZSK and the KSK must not be kept on the DNSSEC-aware primary authoritative name server when the name server does not support dynamic updates.
<VulnDiscussion>The private keys in the KSK and ZSK key pairs must be protected from unauthorized access. If possible, the private keys shoul...Rule Medium Severity -
SRG-APP-000516
<GroupDescription></GroupDescription>Group -
A zone file must not include resource records that resolve to a fully qualified domain name residing in another zone.
<VulnDiscussion>If a name server were able to claim authority for a resource record in a domain for which it was not authoritative, this woul...Rule Medium Severity
Node 2
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