II - Mission Support Classified
Rules and Groups employed by this XCCDF Profile
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SRG-NET-000512
Group -
The layer 2 switch must not have the default VLAN assigned to any host-facing switch ports.
In a VLAN-based network, switches use the default VLAN (i.e., VLAN 1) for in-band management and to communicate with other networking devices using Spanning-Tree Protocol (STP), Dynamic Trunking Pr...Rule Medium Severity -
SRG-NET-000512
Group -
The layer 2 switch must have the default VLAN pruned from all trunk ports that do not require it.
The default VLAN (i.e., VLAN 1) is a special VLAN used for control plane traffic such as Spanning-Tree Protocol (STP), Dynamic Trunking Protocol (DTP), VLAN Trunking Protocol (VTP), and Port Aggreg...Rule Medium Severity -
SRG-NET-000512
Group -
The layer 2 switch must not use the default VLAN for management traffic.
Switches use the default VLAN (i.e., VLAN 1) for in-band management and to communicate with directly connected switches using Spanning-Tree Protocol (STP), Dynamic Trunking Protocol (DTP), VLAN Tru...Rule Medium Severity -
SRG-NET-000512
Group -
The layer 2 switch must have all user-facing or untrusted ports configured as access switch ports.
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...Rule Medium Severity -
SRG-NET-000512
Group -
The layer 2 switch must have the native VLAN assigned to an ID other than the default VLAN for all 802.1q trunk links.
VLAN hopping can be initiated by an attacker who has access to a switch port belonging to the same VLAN as the native VLAN of the trunk link connecting to another switch that the victim is connecte...Rule Medium Severity -
SRG-NET-000512
Group -
The layer 2 switch must not have any switch ports assigned to the native VLAN.
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...Rule Low Severity -
SRG-NET-000512
Group -
The layer 2 switch must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs.
Configuring the network device to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security base...Rule Medium Severity -
SRG-NET-000705
Group -
The layer 2 switch must employ organization-defined controls by type of denial-of-service (DoS) to achieve the DoS objective.
DoS events may occur due to a variety of internal and external causes, such as an attack by an adversary or a lack of planning to support organizational needs with respect to capacity and bandwidth...Rule Medium Severity -
SRG-NET-000715
Group -
The layer 2 switch must implement physically or logically separate subnetworks to isolate organization-defined critical system components and functions.
Separating critical system components and functions from other noncritical system components and functions through separate subnetworks may be necessary to reduce susceptibility to a catastrophic o...Rule Medium Severity -
SRG-NET-000760
Group -
The layer 2 switch must establish organization-defined alternate communications paths for system operations organizational command and control.
An incident, whether adversarial- or nonadversarial-based, can disrupt established communications paths used for system operations and organizational command and control. Alternate communications p...Rule Medium Severity
Node 2
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