Free DISA STIG and SRG Library | Vaulted

V-60817

The Arista Multilayer Switch must enforce approved authorizations for controlling the flow of information between interconnected networks in accordance with applicable policy.

Finding ID
AMLS-L3-000100
Rule ID
SV-75273r1_rule
Severity
Cat II
CCE
(None)
Group Title
SRG-NET-000019-RTR-000002
CCI
CCI-001414
Target Key
(None)
Documentable
No
Discussion

Information flow control regulates authorized information to travel within a network and between interconnected networks. Controlling the flow of network traffic is critical so it does not introduce any unacceptable risk to the network infrastructure or data. An example of a flow control restriction is blocking outside traffic claiming to be from within the organization. For most routers, internal information flow control is a product of system design.

Fix Text

Configure the router to enforce approved authorizations for controlling the flow of information between interconnected networks in accordance with applicable policy. To use an IP access list to fulfill this function, enter the following commands, substituting organizational values for the bracketed variables. ip access-list [name] [permit/deny] [protocol] [source address] [source port] [destination address] [destination port] exit interface [type] [number] ip access-group [name] [direction]

Check Content

Verify each router enforces approved authorizations for controlling the flow of information between interconnected networks in accordance with applicable policy. This requirement may be met through the use of IP access control lists. To verify IP access lists are configured, execute the "show ip access-lists summary" command, and check that the list is configured and is active on applicable interfaces. To verify the lists control the flow of information in accordance with organizational policy, enter the "show ip access-list [name]" command, and review the associated permit and deny statements. If the router does not enforce approved authorizations for controlling the flow of information between interconnected networks in accordance with applicable policy, this is a finding.