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The Cisco ACI must be configured to prohibit the use of all unnecessary and/or nonsecure functions, ports, protocols, and/or services.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-271920CACI-ND-000005SV-271920r1168358_ruleCCI-000382high
Description
To prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable unused or unnecessary physical and logical ports/protocols on information systems. By default, Cisco ACI only exposes two ports from the outside: - HTTPS (TCP 443) for GUI access and REST API access, on both the APIC and switches. - SSH (TCP 22) for CLI access, on both the APIC and switches. Cisco ACI enables Link Layer Discovery Protocol (LLDP) by default to support zero-touch fabric provisioning. DOD sites may keep LLDP enabled on trusted interfaces for loop prevention and VMM integration. Sites must disable LLDP on interfaces facing untrusted networks. Cisco ACI is designed not to run nonrequired services by default, as well as to limit remote management services or protocols that are active by default. Hence, there is no action required from an administrator standpoint to disable them. If any other protocol is required, such as SNMP, administrators must explicitly configure it.
STIGDate
Cisco ACI NDM Security Technical Implementation Guide2025-12-11

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-271920r1168358_chk)

From the APIC GUI: 1. Navigate to Fabric >> Fabric Policies >> Policies >> Pod >> Management Access. 2. Navigate to Tenants >> mgmt >> Node Management EPGs >> Out-Of-Band EPG - Default. Verify insecure or unnecessary ports/protocols, services, and ciphers are disabled. This is the default. If the Cisco ACI is configured to listen or run unnecessary and/or nonsecure functions, ports, protocols, and/or services, this is a finding.

Fix Text (F-75877r1168357_fix)

From the APIC GUI: Navigate to Fabric >> Fabric Policies >> Policies >> Pod >> Management Access. This will limit the ports the management plane is listening on. Add an OOB contract to limit the mgmt interfaces to only accept the required port traffic. Navigate to Tenants >> mgmt >> Node Management EPGs >> Out-Of-Band EPG - Default. Disable insecure or unnecessary ports/protocols, services, and ciphers that have been enabled, such as HTTP, FTP, unauthorized TLS versions, and TELNET.