Title

The system must not use UDP for NIS/NIS+. (Cat I impact)

Discussion

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.

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.

Additional Identifiers

Rule ID: SV-227948r603266_rule

Vulnerability ID: V-227948

Group Title: SRG-OS-000095

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.