II - Mission Support Public
Rules and Groups employed by this XCCDF Profile
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SRG-APP-000440-DNS-000065
<GroupDescription></GroupDescription>Group -
The Windows DNS Server must implement cryptographic mechanisms to detect changes to information during transmission.
<VulnDiscussion>Encrypting information for transmission protects it from unauthorized disclosure and modification. Cryptographic mechanisms i...Rule Medium Severity -
SRG-APP-000516-DNS-000078
<GroupDescription></GroupDescription>Group -
The validity period for the Resource Record Signatures (RRSIGs) covering a zone's DNSKEY RRSet must be no less than two days and no more than one week.
<VulnDiscussion>The best way for a zone administrator to minimize the impact of a key compromise is by limiting the validity period of RRSIGs...Rule Medium Severity -
SRG-APP-000516-DNS-000084
<GroupDescription></GroupDescription>Group -
NSEC3 must be used for all internal DNS zones.
<VulnDiscussion>NSEC records list the resource record types for the name, as well as the name of the next resource record. This information r...Rule Medium Severity -
SRG-APP-000516-DNS-000085
<GroupDescription></GroupDescription>Group -
The Windows DNS Server's zone files must have NS records that point to active name servers authoritative for the domain specified in that record.
<VulnDiscussion>Poorly constructed NS records pose a security risk because they create conditions under which an adversary might be able to p...Rule High Severity -
SRG-APP-000516-DNS-000087
<GroupDescription></GroupDescription>Group -
All authoritative name servers for a zone must be located on different network segments.
<VulnDiscussion>Most enterprises have an authoritative primary server and a host of authoritative secondary name servers. It is essential tha...Rule Medium Severity
Node 2
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