Disable the HTTP Statistics Server

MittelStufe 1Automatisiertbind

Beschreibung

Starting in BIND 9.5.0 there was a new statistics web server included, that is a useful debugging tool in a non-production environment. The HTTP server provides data in XML format about the condition of a BIND 9 server. The statistics server provides the same statistics that are available to the statistics-file dump. This server should be left disabled. The audit fails when a statistics-channels statement is configured. The audit parses the effective configuration printed by named-checkconf -p (all include files resolved) from /etc/named.conf (RHEL; chroot /var/named/chroot is detected) or /etc/bind/named.conf (Debian/Ubuntu).

So wird geprüft

Prüfmethode: Shell-Befehl

shell

if [ -f /var/named/chroot/etc/named.conf ]; then out=$(named-checkconf -t /var/named/chroot -p /etc/named.conf 2>/dev/null) || exit 1
else conf=/etc/named.conf; [ -f "$conf" ] || conf=/etc/bind/named.conf
  out=$(named-checkconf -p "$conf" 2>/dev/null) || exit 1; fi
flat=$(printf '%s\n' "$out" | tr '\t\n' '  ' | tr -s ' ')
opts=$(printf '%s\n' "$out" | awk '/^options[ \t]*\{/{f=1} f{print} f&&/^\};/{exit}' | tr '\t\n' '  ' | tr -s ' ')
printf '%s\n' "$flat" | grep -Eq '(^|[ ;}])statistics-channels \{' && echo 'statistics-channels is configured' || echo compliant

Erwartete Ausgabe: compliant

So wird behoben

Behebungsmethode: Anleitung oder Infrastruktur-Patch

Remove the statistics-channel option from the configuration file.

Eigenschaften

Betriebssysteme: Beliebig
Tags: binddnsoperations
Referenz: CIS ISC BIND DNS Server 9.11 Benchmark v1.0.0 - 9.4 Disable the HTTP Statistics Server

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shell

tmaegis scan --target bind