Ensure discard daemon is not in use

MittelStufe 1Automatisiertaix

Beschreibung

This entry starts the discard service when required. This service is used as a debugging tool by setting up a listening socket which ignores the data it receives. The discard service is used as a debugging and measurement tool. It sets up a listening socket and ignores data that it receives. This is a /dev/null service and is obsolete. This can be used in DoS attacks and therefore, must be disabled. Audit: `lssrc -s inetd -l` must not list the service (count 0).

So wird geprüft

Prüfmethode: Shell-Befehl

shell

command -v lssrc >/dev/null 2>&1 || exit 1; n=$(lssrc -s inetd -l 2>/dev/null | grep -c 'discard'); echo "$n"

Erwartete Ausgabe: 0

So wird behoben

Behebungsmethode: Anleitung oder Infrastruktur-Patch

In /etc/inetd.conf, comment out the discard entry and refresh the inetd process: chsubserver -r inetd -C /etc/inetd.conf -d -v 'discard' -p udp lssrc -s inetd && refresh -s inetd

Eigenschaften

Betriebssysteme: Beliebig
Tags: aixservices
Referenz: CIS IBM AIX 7 Benchmark v1.2.0 - 4.3.4.5 Ensure discard daemon is not in use

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