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


Finding ID Version Rule ID IA Controls Severity
V-89637 VRAU-SL-000545 SV-100287r1_rule Medium
Implementing 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.
VMware vRealize Automation 7.x SLES Security Technical Implementation Guide 2018-10-12


Check Text ( C-89329r1_chk )
If the SLES for vRealize does not use NIS or NIS+, this is not applicable.

Check if NIS or NIS+ is implemented using UDP:

# rpcinfo -p | grep yp | grep udp

If NIS or NIS+ is implemented using UDP, this is a finding.
Fix Text (F-96379r1_fix)
Configure the SLES for vRealize to not use UDP for NIS and NIS+. Consult vendor documentation for the required procedure.