STIGQter: STIG Summary: Dell OS10 Switch NDM Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 10 Dec 2024:

The Dell OS10 Switch must enforce approved authorizations for controlling the flow of management information within the network device based on information flow control policies.

DISA Rule

SV-269770r1051695_rule

Vulnerability Number

V-269770

Group Title

SRG-APP-000038-NDM-000213

Rule Version

OS10-NDM-000110

Severity

CAT II

CCI(s)

• CCI-001368 - Enforce approved authorizations for controlling the flow of information within the system based on organization-defined information flow control policies.
• CCI-004192 - Protect nonlocal maintenance sessions by separating the maintenance session from other network sessions with the system by logically separated communications paths.

Weight

10

Fix Recommendation

Configure the OS10 Switch to restrict management access to specific IP addresses as shown in the example below.

Step 1: Configure inbound ACLs to restrict which packets should be allowed to reach to the control plane from the OOBM port and from the front panel data ports:

OS10(config)# ip access-list MGMT_TRAFFIC_FROM_OOBM
OS10(config-ipv4-acl)# seq 10 permit ip 192.168.105.0/28 192.168.105.17/32
OS10(config-ipv4-acl)# seq 20 deny ip any 192.168.105.17/32 log

OS10(config)# ip access-list MGMT_TRAFFIC_FROM_DATA
OS10(config-ipv4-acl)# seq 10 permit ip 10.20.30.0/24 10.20.31.1/32
OS10(config-ipv4-acl)# seq 20 deny ip any 10.20.31.1 log

Step 2: Apply the ACLs to the ingress of the control-plane:

OS10(config)# control-plane
OS10(config-control-plane)# ip access-group MGMT_TRAFFIC_FROM_OOBM mgmt in
OS10(config-control-plane)# ip access-group MGMT_TRAFFIC_FROM_DATA data in

Check Contents

Review the OS10 Switch configuration to verify that administrative access to the switch is allowed only from hosts residing in the management network.

Step 1: Examine the interface configuration for the control plane ACLs applied to the traffic destined to the router control plane from the OOBM port or front panel data ports:

!
control-plane
ip access-group MGMT_TRAFFIC_FROM_OOBM mgmt in
ip access-group MGMT_TRAFFIC_FROM_DATA data in

Step 2: Review the control plane ACLs to verify traffic is limited appropriately.

For example, to restrict the management traffic access to a switch at address 192.168.105.17 to only a subset of the 192.168.105.0 subnet, check for an ACL list such as the following:
!
ip access-list MGMT_TRAFFIC_FROM_OOBM
seq 10 permit ip 192.168.105.0/28 192.168.105.17/32
seq 20 deny ip any 192.168.105.17/32 log

Likewise, to restrict the management traffic arriving to a switch address 10.20.30.1 on the front panel data ports:

!
ip access-list MGMT_TRAFFIC_FROM_DATA
seq 10 permit ip 10.20.30.0/24 10.20.31.1/32
seq 20 deny ip any 10.20.31.1 log

If the OS10 Switch is not configured to enforce approved authorizations for controlling the flow of management information within the device based on control policies, this is a finding.

Vulnerability Number

V-269770

Documentable

False

Rule Version

OS10-NDM-000110

Severity Override Guidance

Review the OS10 Switch configuration to verify that administrative access to the switch is allowed only from hosts residing in the management network.

Step 1: Examine the interface configuration for the control plane ACLs applied to the traffic destined to the router control plane from the OOBM port or front panel data ports:

!
control-plane
ip access-group MGMT_TRAFFIC_FROM_OOBM mgmt in
ip access-group MGMT_TRAFFIC_FROM_DATA data in

Step 2: Review the control plane ACLs to verify traffic is limited appropriately.

For example, to restrict the management traffic access to a switch at address 192.168.105.17 to only a subset of the 192.168.105.0 subnet, check for an ACL list such as the following:
!
ip access-list MGMT_TRAFFIC_FROM_OOBM
seq 10 permit ip 192.168.105.0/28 192.168.105.17/32
seq 20 deny ip any 192.168.105.17/32 log

Likewise, to restrict the management traffic arriving to a switch address 10.20.30.1 on the front panel data ports:

!
ip access-list MGMT_TRAFFIC_FROM_DATA
seq 10 permit ip 10.20.30.0/24 10.20.31.1/32
seq 20 deny ip any 10.20.31.1 log

If the OS10 Switch is not configured to enforce approved authorizations for controlling the flow of management information within the device based on control policies, this is a finding.

Check Content Reference

M

Target Key

5666