Nutanix AOS must monitor remote access methods.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-254123	NUTX-OS-000060	SV-254123r846457_rule		Medium

Description
Remote access services, such as those providing remote access to network devices and information systems, which lack automated monitoring capabilities, increase risk and make remote user access management difficult at best. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, nonorganization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Automated monitoring of remote access sessions allows organizations to detect cyberattacks and also ensure ongoing compliance with remote access policies by auditing connection activities of remote access capabilities, such as Remote Desktop Protocol (RDP), on a variety of information system components (e.g., servers, workstations, notebook computers, smartphones, and tablets).

Description

Remote access services, such as those providing remote access to network devices and information systems, which lack automated monitoring capabilities, increase risk and make remote user access management difficult at best. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, nonorganization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Automated monitoring of remote access sessions allows organizations to detect cyberattacks and also ensure ongoing compliance with remote access policies by auditing connection activities of remote access capabilities, such as Remote Desktop Protocol (RDP), on a variety of information system components (e.g., servers, workstations, notebook computers, smartphones, and tablets).

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

Details

Check Text ( C-57608r846455_chk )
Confirm Nutanix AOS monitors remote access methods. $ sudo grep -i loglevel /etc/ssh/sshd_config If the LogLevel is not set to "VERBOSE", this is a finding.

Fix Text (F-57559r846456_fix)
Configure SSH to verbosely log connection attempts and failed logon attempts to the operating system by running the following command. $ sudo salt-call state.sls security/CVM/sshdCVM The SSH service will need to be restarted for the changes to take effect: $ sudo systemctl restart sshd