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The Cisco perimeter router must be configured to block all outbound management traffic.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-216767CISC-RT-000390SV-216767r945857_ruleCCI-001097medium
Description
For in-band management, the management network must have its own subnet in order to enforce control and access boundaries provided by Layer 3 network nodes, such as routers and firewalls. Management traffic between the managed network elements and the management network is routed via the same links and nodes as that used for production or operational traffic. Safeguards must be implemented to ensure that the management traffic does not leak past the perimeter of the managed network.
STIGDate
Cisco IOS XR Router RTR Security Technical Implementation Guide2024-08-22

Related Frameworks

1 mapping across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (18) 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-02Secure Baseline Configurations
1.00
CRY-01Use of Cryptographic Controls
1.00
CRY-01.1Alternate Physical Protection
1.00
CRY-03Transmission Confidentiality
1.00
CRY-04Transmission Integrity
1.00
CRY-05Encrypting Data At Rest
1.00
DCH-01Data Protection
1.00
IAC-21Least Privilege
1.00
MON-01Continuous Monitoring
1.00
MON-01.1Intrusion Detection & Prevention Systems (IDS & IPS)
1.00

+8 more (top 10 by confidence shown)

NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (10) 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.

CM-6Configuration Settings
1.00
SC-24Fail in Known State
1.00
SC-47Alternate Communications Paths
1.00
SC-5Denial-of-service Protection
1.00
SC-7Boundary Protection
1.00
SC-7(11)Restrict Incoming Communications Traffic
1.00
SC-7(29)Separate Subnets to Isolate Functions
1.00
SC-7(5)Deny by Default — Allow by Exception
1.00
SI-4System Monitoring
1.00
SI-4(11)Analyze Communications Traffic Anomalies
1.00
NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (3) 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.

3.13.1
1.00
3.13.2
1.00
3.13.5
1.00
CCI1 mapping
CCI-001097
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (5) 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.

DE.CM-01
1.00
PR.DS-01
1.00
PR.DS-02
1.00
PR.DS-10
1.00
PR.IR-01
1.00

Who does this work

15 NICE work roles and 9 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-216767r945857_chk)

This requirement is not applicable for the DODIN Backbone. The perimeter router of the managed network must be configured with an outbound ACL on the egress interface to block all management traffic as shown in the example below. Step 1: Verify that all external interfaces has been configured with an outbound ACL as shown in the example below. interface GigabitEthernet0/0/0/2 ipv4 address 10.1.35.3 255.255.255.0 ipv4 access-group EXTERNAL_ACL_OUTBOUND egress Step 2: Verify that the outbound ACL discards management traffic as shown in the example below. ipv4 access-list EXTERNAL_ACL_OUTBOUND 10 deny tcp any any eq tacacs log-input 20 deny tcp any any eq ssh log-input 30 deny udp any any eq snmp log-input 40 deny udp any any eq snmptrap log-input 50 deny udp any any eq syslog log-input 60 permit tcp any any eq www log-input 70 deny ipv4 any any log-input If management traffic is not blocked at the perimeter, this is a finding.

Fix Text (F-17997r288685_fix)

This requirement is not applicable for the DODIN Backbone. Configure the perimeter router of the managed network with an outbound ACL on the egress interface to block all management traffic. Step 1: Configure an ACL to block egress management traffic. RP/0/0/CPU0:R3(config)#Ipv4 access-list EXTERNAL_ACL_OUTBOUND RP/0/0/CPU0:R3(config-ipv4-acl)#deny tcp any any eq tacacs log-input RP/0/0/CPU0:R3(config-ipv4-acl)#deny tcp any any eq 22 log-input RP/0/0/CPU0:R3(config-ipv4-acl)#deny udp any any eq snmp log-input RP/0/0/CPU0:R3(config-ipv4-acl)#deny udp any any eq snmptrap log-input RP/0/0/CPU0:R3(config-ipv4-acl)#deny udp any any eq syslog log-input RP/0/0/CPU0:R3(config-ipv4-acl)#permit tcp any any eq www log-input RP/0/0/CPU0:R3(config-ipv4-acl)#deny ip any any log-input RP/0/0/CPU0:R3(config-ipv4-acl)#end Note: Permit commands would be configured to allow applicable outbound traffic. The example above is allowing web traffic. Step 2: Configure the external interfaces with the outbound ACL. RP/0/0/CPU0:R3(config)#int g0/0/0/2 RP/0/0/CPU0:R3(config-if)#ipv4 access-group EXTERNAL_ACL_OUTBOUND egress