Nutanix AOS must maintain the confidentiality and integrity of information during reception.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-254231	NUTX-OS-001550	SV-254231r846781_rule		Medium

Description
Information can be either unintentionally or maliciously disclosed or modified during reception, including, for example, during aggregation, at protocol transformation points, and during packing/unpacking. These unauthorized disclosures or modifications compromise the confidentiality or integrity of the information. Ensuring the confidentiality of transmitted information requires the operating system to take measures in preparing information for transmission. This can be accomplished via access control and encryption. Use of this requirement will be limited to situations where the data owner has a strict requirement for ensuring data integrity and confidentiality is maintained at every step of the data transfer and handling process. When receiving data, operating systems need to leverage protection mechanisms such as TLS, SSL VPNs, or IPsec.

Description

Information can be either unintentionally or maliciously disclosed or modified during reception, including, for example, during aggregation, at protocol transformation points, and during packing/unpacking. These unauthorized disclosures or modifications compromise the confidentiality or integrity of the information. Ensuring the confidentiality of transmitted information requires the operating system to take measures in preparing information for transmission. This can be accomplished via access control and encryption. Use of this requirement will be limited to situations where the data owner has a strict requirement for ensuring data integrity and confidentiality is maintained at every step of the data transfer and handling process. When receiving data, operating systems need to leverage protection mechanisms such as TLS, SSL VPNs, or IPsec.

STIG	Date
Nutanix AOS 5.20.x OS Security Technical Implementation Guide	2022-08-24

Details

Check Text ( C-57716r846779_chk )
Confirm Nutanix AOS has SSH loaded and active. $ sudo systemctl status sshd sshd.service - OpenSSH server daemon Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled) Active: active (running) since Tue 2015-11-17 15:17:22 EST; 4 weeks 0 days ago Main PID: 1348 (sshd) CGroup: /system.slice/sshd.service 1053 /usr/sbin/sshd -D If "sshd" does not show a status of "active" and "running", this is a finding. If the "SSH server" package is not installed, this is a finding.

Check Text ( C-57716r846779_chk )

Confirm Nutanix AOS has SSH loaded and active.

$ sudo systemctl status sshd
sshd.service - OpenSSH server daemon
Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled)
Active: active (running) since Tue 2015-11-17 15:17:22 EST; 4 weeks 0 days ago
Main PID: 1348 (sshd)
CGroup: /system.slice/sshd.service
1053 /usr/sbin/sshd -D

If "sshd" does not show a status of "active" and "running", this is a finding.

If the "SSH server" package is not installed, this is a finding.

Fix Text (F-57667r846780_fix)
Configure SSH on Nutanix AOS by running the following command: $ sudo salt-call state.sls security/CVM/sshdCVM