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The Red Hat Enterprise Linux operating system must not have the ypserv package installed.


Overview

Finding ID Version Rule ID IA Controls Severity
V-204443 RHEL-07-020010 SV-204443r603261_rule High
Description
Removing the "ypserv" package decreases the risk of the accidental (or intentional) activation of NIS or NIS+ services.
STIG Date
Red Hat Enterprise Linux 7 Security Technical Implementation Guide 2021-03-01

Details

Check Text ( C-4567r88521_chk )
The NIS service provides an unencrypted authentication service that does not provide for the confidentiality and integrity of user passwords or the remote session.

Check to see if the "ypserve" package is installed with the following command:

# yum list installed ypserv

If the "ypserv" package is installed, this is a finding.
Fix Text (F-4567r88522_fix)
Configure the operating system to disable non-essential capabilities by removing the "ypserv" package from the system with the following command:

# yum remove ypserv