BIND 9.x Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-APP-000001-DNS-000001
<GroupDescription></GroupDescription>Group -
The BIND 9.x secondary name server must limit the number of zones requested from a single master name server.
<VulnDiscussion>Limiting the number of concurrent sessions reduces the risk of Denial of Service (DoS) to the DNS implementation. Name serve...Rule Medium Severity -
SRG-APP-000001-DNS-000001
<GroupDescription></GroupDescription>Group -
The BIND 9.x secondary name server must limit the total number of zones the name server can request at any one time.
<VulnDiscussion>Limiting the number of concurrent sessions reduces the risk of Denial of Service (DoS) to the DNS implementation. Name serve...Rule Medium Severity -
A BIND 9.x server implementation must manage excess capacity, bandwidth, or other redundancy to limit the effects of information flooding types of Denial of Service (DoS) attacks.
<VulnDiscussion>A DoS is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot ...Rule Medium Severity -
SRG-APP-000246-DNS-000035
<GroupDescription></GroupDescription>Group -
A BIND 9.x server implementation must prohibit recursion on authoritative name servers.
<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-000516-DNS-000088
<GroupDescription></GroupDescription>Group -
The master servers in a BIND 9.x implementation must notify authorized secondary name servers when zone files are updated.
<VulnDiscussion>It is important to maintain the integrity of a zone file. The serial number of the SOA record is used to indicate to secondar...Rule Low Severity -
SRG-APP-000516-DNS-000088
<GroupDescription></GroupDescription>Group
Node 2
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