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V-4399

CAT I (High)

The system must not use UDP for NIS/NIS+.

Rule ID

SV-45908r1_rule

STIG

SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide

Version

V1R12

CCIs

CCI-001436

Discussion

Implementing Network Information Service (NIS) or NIS+ under UDP may make the system more susceptible to a Denial of Service attack and does not provide the same quality of service as TCP.

Check Content

If the system does not use NIS or NIS+, this is not applicable.

Check if NIS or NIS+ is implemented using UDP.

Procedure:
# rpcinfo -p | grep yp | grep udp

If NIS or NIS+ is implemented using UDP, this is a finding.

Fix Text

Configure the system to not use UDP for NIS and NIS+. Consult vendor documentation for the required procedure.