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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-4399	GEN006380	SV-63813r1_rule		High

Description
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.

STIG	Date
Oracle Linux 5 Security Technical Implementation Guide	2020-02-25

Details

Check Text ( C-52357r1_chk )
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 (F-54391r1_fix)
Configure the system to not use UDP for NIS and NIS+. Consult vendor documentation for the required procedure.