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Nutanix AOS must not have the telnet-server package installed.


Overview

Finding ID Version Rule ID IA Controls Severity
V-254202 NUTX-OS-001150 SV-254202r846694_rule Medium
Description
It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of nonessential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled.
STIG Date
Nutanix AOS 5.20.x OS Security Technical Implementation Guide 2022-08-24

Details

Check Text ( C-57687r846692_chk )
Confirm Nutanix AOS is configured to disable nonessential capabilities.

$ sudo yum list installed telnet-server

If the telnet-server package is installed, this is a finding.
Fix Text (F-57638r846693_fix)
Remove any finding identified by running the correlating command:

$ sudo yum remove telnet-server