OpenControls Logo

STIG Viewer

STIGViewer Support

Nutanix OS must be configured to prohibit or restrict using functions, ports, protocols, and/or services, as defined in the Ports, Protocols, and Services Management (PPSM) Category Assurance List (CAL) and vulnerability assessments.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-279597NXAC-OS-000151SV-279597r1192559_ruleCCI-000382medium
Description
To prevent unauthorized device connection, unauthorized information transfer, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable or restrict unused or unnecessary physical and logical ports/protocols on information systems. Operating systems can provide 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. Additionally, it is sometimes convenient to provide multiple services from a single component (e.g., VPN and IPS); however, doing so increases risk over limiting the services provided by any one component. To support the requirements and principles of least functionality, the operating system must support the organizational requirements, providing only essential capabilities and limiting the use of ports, protocols, and/or services to only those required, authorized, and approved to conduct official business or to address authorized quality of life issues.
STIGDate
Nutanix Acropolis GPOS Security Technical Implementation Guide2026-02-24

Related Frameworks

1 mapping across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CFG-01Configuration Management Program
1.00
CFG-03Least Functionality
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (33) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-17(1)Monitoring and Control
1.00
AC-17(2)Protection of Confidentiality and Integrity Using Encryption
1.00
AC-17(9)Disconnect or Disable Access
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(4)Automated Audit Actions
1.00
AC-3Access Enforcement
1.00
AC-4Information Flow Enforcement
1.00
AC-6(8)Privilege Levels for Code Execution
1.00
AC-6(9)Log Use of Privileged Functions
1.00
AU-12Audit Record Generation
1.00

+23 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.4.6
1.00
CCI1 mapping
CCI-000382
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

PR.PS-01
1.00
PR.PS-05
1.00

Who does this work

5 NICE work roles and 5 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-279597r1192559_chk)

1. Verify Nutanix OS prohibits or restricts using functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments using the following command. $ sudo iptables -S 2. If IPv6 is in use, run the following command. $ sudo ip6tables -S 3. Review the site or program PPSM CAL; Verify the services allowed by the firewall match the PPSM Component Local Service Assessment (CLSA). If there are additional ports, protocols, or services that are not in the PPSM CLSA, or there are ports, protocols, or services that are prohibited by the PPSM CAL, this is a finding.

Fix Text (F-84055r1192558_fix)

Restrict using functions, ports, protocols, and/or services as defined in the PPSM CAL and vulnerability assessments. 1. For AOS, run the following command. $ sudo salt-call state.sls security/CVM/iptables/init 2. For Prism Central, run the following command. $ sudo salt-call state.sls security/PVCM/iptables/init 3. For Files, run the following command. $ sudo salt-call state.sls security/AFS/iptables/init 4. For AHV, run the following command. $ sudo salt-call state.sls security/KVM/iptablesKVM