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Infrastructure L3 Switch Security Technical Implementation Guide



Findings (MAC III - Administrative Sensitive)

Finding ID Severity Title
V-3062 High Network devices must be configured to ensure passwords are not viewable when displaying configuration information.
V-3012 High Network devices must be password protected.
V-5626 High The switch must be configured to use 802.1x authentication on host facing access switch ports.
V-4582 High The network device must require authentication for console access.
V-3175 High The network device must require authentication prior to establishing a management connection for administrative access.
V-3210 High The network device must not use the default or well-known SNMP community strings public and private.
V-3196 High The network device must use SNMP Version 3 Security Model with FIPS 140-2 validated cryptography for any SNMP agent configured on the device.
V-15434 High The emergency account must be set to an appropriate authorization level to perform necessary administrative functions when the authentication server is not online.
V-3056 High Group accounts must not be configured for use on the network device.
V-3143 High Network devices must not have any default manufacturer passwords.
V-3069 Medium Management connections to a network device must be established using secure protocols with FIPS 140-2 validated cryptographic modules.
V-31285 Medium Network devices must authenticate all BGP peers within the same or between autonomous systems (AS).
V-15432 Medium Network devices must use two or more authentication servers for the purpose of granting administrative access.
V-5646 Medium The network device must drop half-open TCP connections through filtering thresholds or timeout periods.
V-3014 Medium The network devices must timeout management connections for administrative access after 10 minutes or less of inactivity.
V-14669 Medium Network devices must have BSDr commands disabled.
V-14668 Medium FTP servers on the device must be disabled.
V-5628 Medium A dedicated management VLAN or VLANs must be configured to keep management traffic separate from user data and control plane traffic.
V-5624 Medium The IAO/NSO will ensure if 802.1x Port Authentication is implemented, re-authentication must occur every 60 minutes.
V-5622 Medium The native VLAN must be assigned to a VLAN ID other than the default VLAN for all 802.1q trunk links.
V-14693 Medium The network device must be configured to ensure IPv6 Site Local Unicast addresses are not defined in the enclave, (FEC0::/10). Note that this consist of all addresses that begin with FEC, FED, FEE and FEF.
V-18566 Medium The switch must only allow a maximum of one registered MAC address per access port.
V-14671 Medium Network devices must authenticate all NTP messages received from NTP servers and peers.
V-3971 Medium VLAN 1 must not be used for user VLANs.
V-17835 Medium Traffic entering the tunnels is not restricted to only the authorized management packets based on destination address.
V-17834 Medium An inbound ACL is not configured for the management network sub-interface of the trunk link to block non-management traffic.
V-17833 Medium Authorized management traffic must be forwarded by the multi-layer switch from the production or managed VLANs to the management VLAN.
V-17832 Medium The management VLAN must be configured with an IP address from the management network address block.
V-30744 Medium L2TPv3 sessions must be authenticated prior to transporting traffic.
V-3160 Medium Network devices must be running a current and supported operating system with all IAVMs addressed.
V-18790 Medium Default routes must not be directed to the tunnel entry point.
V-3969 Medium Network devices must only allow SNMP read-only access.
V-5611 Medium The network devices must only allow management connections for administrative access from hosts residing in the management network.
V-3967 Medium The network devices must time out access to the console port at 10 minutes or less of inactivity.
V-3966 Medium In the event the authentication server is down or unavailable, there must only be one local account of last resort created for emergency use.
V-17824 Medium The management interface is an access switchport and has not been assigned to a separate management VLAN.
V-17826 Medium The access switchport connecting to the OOBM access switch is not the only port with membership to the management VLAN.
V-17821 Medium The network devices OOBM interface must be configured with an OOBM network address.
V-17822 Medium The network devices management interface must be configured with both an ingress and egress ACL.
V-19188 Medium The network device must have control plane protection enabled.
V-14717 Medium The network device must not allow SSH Version 1 to be used for administrative access.
V-30577 Medium The administrator must ensure that Protocol Independent Multicast (PIM) is disabled on all interfaces that are not required to support multicast routing.
V-17815 Medium IGP instances configured on the OOBM gateway router do not peer only with their appropriate routing domain.
V-17814 Medium Gateway configuration at the remote VPN end-point is a not a mirror of the local gateway
V-17817 Medium Traffic from the managed network is able to access the OOBM gateway router
V-17816 Medium The routes from the two IGP domains are redistributed to each other.
V-17819 Medium Management network traffic must not leak onto the managed network.
V-17818 Medium Traffic from the managed network will leak into the management network via the gateway router interface connected to the OOBM backbone.
V-30578 Medium The administrator must ensure that a PIM neighbor filter is bound to all interfaces that have PIM enabled.
V-3057 Medium Authorized accounts must be assigned the least privilege level necessary to perform assigned duties.
V-15288 Medium ISATAP tunnels must terminate at an interior router.
V-3058 Medium Unauthorized accounts must not be configured for access to the network device.
V-3043 Medium The network device must use different SNMP community names or groups for various levels of read and write access.
V-3013 Medium Network devices must display the DoD-approved logon banner warning.
V-3984 Medium Access switchports must not be assigned to the native VLAN.
V-18545 Medium The SA will ensure a packet filter is implemented to filter the enclave traffic to and from printer VLANs to allow only print traffic.
V-3021 Medium Network devices must only allow SNMP access from addresses belonging to the management network.
V-5613 Medium The network device must be configured for a maximum number of unsuccessful SSH logon attempts set at 3 before resetting the interface.
V-5612 Medium The network devices must be configured to timeout after 60 seconds or less for incomplete or broken SSH sessions.
V-18522 Medium Server VLAN interfaces must be protected by restrictive ACLs using a deny-by-default security posture.
V-18523 Medium The IAO will ensure the Server Farm infrastructure is secured by ACLs on VLAN interfaces that restrict data originating from one server farm segment destined to another server farm segment.
V-3085 Medium Network devices must have HTTP service for administrative access disabled.
V-3081 Medium IP source routing must be disabled.
V-28784 Medium A service or feature that calls home to the vendor must be disabled.
V-30660 Medium The administrator must ensure the 6-to-4 router is configured to drop any IPv4 packets with protocol 41 received from the internal network.
V-3034 Medium Network devices must authenticate all IGP peers.
V-5623 Medium Port trunking must be disabled on all access ports (do not configure trunk on, desirable, non-negotiate, or auto--only off).
V-14707 Medium The network element must be configured from accepting any outbound IP packet that contains an illegitimate address in the source address field via egress ACL or by enabling Unicast Reverse Path Forwarding in an IPv6 enclave.
V-17754 Medium IPSec tunnels used to transit management traffic must be restricted to only the authorized management packets based on destination and source IP address.
V-3008 Medium The IAO will ensure IPSec VPNs are established as tunnel type VPNs when transporting management traffic across an ip backbone network.
V-14681 Low The network device must use its loopback interface address as the source address for all iBGP peering sessions.
V-3079 Low Network devices must have the Finger service disabled.
V-3070 Low Network devices must log all attempts to establish a management connection for administrative access.
V-3072 Low The running configuration must be synchronized with the startup configuration after changes have been made and implemented.
V-30617 Low Network devices must have a maximum hop limit of at least 32.
V-4584 Low The network device must log all messages except debugging and send all log data to a syslog server.
V-14672 Low The network device must use its loopback or OOB management interface address as the source address when originating authentication services traffic.
V-14673 Low The network device must use its loopback or OOB management interface address as the source address when originating syslog traffic.
V-14674 Low The network device must use its loopback or OOB management interface address as the source address when originating NTP traffic.
V-3972 Low VLAN 1 must be pruned from all trunk and access ports that do not require it.
V-3973 Low Disabled switch ports must be placed in an unused VLAN (do not use VLAN1).
V-17837 Low The core router within the managed network has not been configured to provide preferred treatment for management traffic that must traverse several nodes to reach the management network.
V-17836 Low Management traffic is not classified and marked at the nearest upstream MLS or router when management traffic must traverse several nodes to reach the management network.
V-23747 Low Network devices must use at least two NTP servers to synchronize time.
V-17825 Low An address has not been configured for the management VLAN from space belonging to the OOBM network assigned to that site.
V-17827 Low The management VLAN is not pruned from any VLAN trunk links belonging to the managed network’s infrastructure.
V-17823 Low The management interface must be configured as passive for the IGP instance deployed in the managed network.
V-19189 Low The administrator must ensure that multicast routers are configured to establish boundaries for Admin-local or Site-local scope multicast traffic.
V-18544 Low Printers must be assigned to a VLAN that is not shared by unlike devices.
V-30736 Low The administrator must ensure the 6-to-4 router is configured to drop any outbound IPv6 packets from the internal network with a source address that is not within the 6to4 prefix 2002:V4ADDR::/48 where V4ADDR is the designated IPv4 6to4 address for the enclave.
V-14675 Low The network device must use its loopback or OOB management interface address as the source address when originating SNMP traffic.
V-14676 Low The network device must use its loopback or OOB management interface address as the source address when originating IP Flow/NetFlow traffic.
V-14677 Low The network device must use its loopback or OOB management interface address as the source address when originating TFTP or FTP traffic.
V-3020 Low Network devices must have DNS servers defined if it is configured as a client resolver.
V-14667 Low Network devices must be configured with rotating keys used for authenticating IGP peers that have a duration exceeding 180 days.
V-30585 Low The administrator must ensure that multicast groups used for source specific multicast (SSM) routing are from the specific multicast address space reserved for this purpose.
V-7011 Low The auxiliary port must be disabled unless it is connected to a secured modem providing encryption and authentication.
V-3000 Low The network device must log all interface access control lists (ACL) deny statements.