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The RUCKUS ICX switch must have all user-facing or untrusted ports configured as access switch ports.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-273692RCKS-L2S-000250SV-273692r1110995_ruleCCI-000366medium
Description
Double encapsulation can be initiated by an attacker who has access to a switch port belonging to the native VLAN of the trunk port. Knowing the victim's MAC address and with the victim attached to a different switch belonging to the same trunk group, thereby requiring the trunk link and frame tagging, the malicious user can begin the attack by sending frames with two sets of tags. The outer tag that will have the attacker's VLAN ID (probably the well-known and omnipresent default VLAN) is stripped off by the switch, and the inner tag that will have the victim's VLAN ID is used by the switch as the next hop and sent out the trunk port.
STIGDate
RUCKUS ICX Layer 2 Switch Security Technical Implementation Guide2025-06-03

Related Frameworks

1 mapping across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (8) 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
END-01Endpoint Device Management (EDM)
1.00
END-04Malicious Code Protection (Anti-Malware)
1.00
END-06Endpoint File Integrity Monitoring (FIM)
1.00
MON-01Continuous Monitoring
1.00
MON-01.7File Integrity Monitoring (FIM)
1.00
CFG-02Secure Baseline Configurations
0.50
CFG-02.7Approved Configuration Deviations
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (100) 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-12Session Termination
1.00
AC-16(1)Dynamic Attribute Association
1.00
AC-17(1)Monitoring and Control
1.00
AC-2Account Management
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(11)Usage Conditions
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00
AC-24(1)Transmit Access Authorization Information
1.00
AC-25Reference Monitor
1.00

+90 more (top 10 by confidence shown)

NIST 800-1710 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.

3.4.1
1.00
3.4.2
1.00
CCI1 mapping
CCI-000366
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-09
1.00
PR.PS-01
1.00
PR.DS-10
0.50
PR.PSPlatform Security
0.50
PR.PS-05
0.50

Who does this work

10 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-273692r1110995_chk)

Review the switch configurations and examine all user-facing or untrusted switch ports. device#show vlans Total PORT-VLAN entries: 2 Maximum PORT-VLAN entries: 1024 Legend: [Stk=Stack-Id, S=Slot] PORT-VLAN 222, Name Access, Priority level0, On Untagged Ports: (U1/M1) 1 2 3 4 5 6 7 8 9 10 11 12 Untagged Ports: (U1/M1) 13 14 15 17 18 19 20 21 22 23 24 25 Untagged Ports: (U1/M1) 26 27 28 29 30 31 32 33 34 35 36 37 Untagged Ports: (U1/M1) 38 39 40 41 43 44 45 46 47 48 Untagged Ports: (U1/M2) 1 2 3 4 5 6 7 8 Tagged Ports: (U1/M2) 1 Mac-Vlan Ports: None Monitoring: Disabled PORT-VLAN 333, Name trunk, Priority level0, Off Untagged Ports: None Tagged Ports: (U1/M2) 1 Mac-Vlan Ports: None Monitoring: Disabled device# If all user-facing or untrusted ports are not configured as access (i.e., untagged) ports, this is a finding.

Fix Text (F-77688r1110098_fix)

Disable trunking on all user-facing or untrusted switch ports. 1. Access Ports: device(config)# vlan 222 name access device(config-vlan-222)# untagged ethernet 1/1/2 to 1/1/48 2. Trunk Port: device(config-vlan-222)# tagged ethernet 1/2/1