II - Mission Support Public
Rules and Groups employed by this XCCDF Profile
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SRG-APP-000001-DNS-000115
<GroupDescription></GroupDescription>Group -
The Windows DNS Server must restrict incoming dynamic update requests to known clients.
<VulnDiscussion>Limiting the number of concurrent sessions reduces the risk of denial of service (DoS) on any system. A DNS server's functio...Rule Medium Severity -
SRG-APP-000348-DNS-000042
<GroupDescription></GroupDescription>Group -
The Windows DNS Server must be configured to record who added/modified/deleted DNS zone information.
<VulnDiscussion>Without a means for identifying the individual that produced the information, the information cannot be relied on. Identifyin...Rule Medium Severity -
SRG-APP-000350-DNS-000044
<GroupDescription></GroupDescription>Group -
The Windows DNS Server must notify the DNS administrator in the event of an error validating another DNS server's identity.
<VulnDiscussion>Failing to act on validation errors may result in the use of invalid, corrupted, or compromised information. The validation o...Rule Medium Severity -
SRG-APP-000089-DNS-000004
<GroupDescription></GroupDescription>Group -
The Windows DNS Server log must be enabled.
<VulnDiscussion>Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events r...Rule Medium Severity -
SRG-APP-000516-DNS-000500
<GroupDescription></GroupDescription>Group -
The "Manage auditing and security log" user right must be assigned only to authorized personnel.
<VulnDiscussion>Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events r...Rule Medium Severity -
SRG-APP-000214-DNS-000079
<GroupDescription></GroupDescription>Group -
The validity period for the Resource Record Signatures (RRSIGs) covering the Delegation Signer (DS) Resource Record (RR) for a zone's delegated children 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-000218-DNS-000027
<GroupDescription></GroupDescription>Group -
The Windows DNS name servers for a zone must be geographically dispersed.
<VulnDiscussion>In addition to network-based separation, authoritative name servers should be dispersed geographically. In other words, in ad...Rule Medium Severity -
SRG-APP-000383-DNS-000047
<GroupDescription></GroupDescription>Group -
The Windows DNS Server must prohibit recursion on authoritative name servers for which forwarders have not been configured for external queries.
<VulnDiscussion>A potential vulnerability of DNS is that an attacker can poison a name server's cache by sending queries that will cause the ...Rule Medium Severity -
SRG-APP-000383-DNS-000047
<GroupDescription></GroupDescription>Group -
Forwarders on an authoritative Windows DNS Server, if enabled for external resolution, must forward only to an internal, non-Active Directory (AD)-integrated DNS server or to the DOD Enterprise Recursive Services (ERS).
<VulnDiscussion>A potential vulnerability of DNS is that an attacker can poison a name server's cache by sending queries that will cause the ...Rule Medium Severity -
SRG-APP-000383-DNS-000047
<GroupDescription></GroupDescription>Group -
The Windows DNS Server with a caching name server role must restrict recursive query responses to only the IP addresses and IP address ranges of known supported clients.
<VulnDiscussion>A potential vulnerability of DNS is that an attacker can poison a name server's cache by sending queries that will cause the ...Rule High Severity
Node 2
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