DISA STIGS Viewer

AOS, when used as a VPN Gateway, must ensure inbound and outbound traffic is configured with a security policy in compliance with information flow control policies.

Overview

Finding ID Version Rule ID IA Controls Severity
V-266992 ARBA-VN-000040 SV-266992r1040904_rule   Medium
Description
Unrestricted traffic may contain malicious traffic, which poses a threat to an enclave or to other connected networks. Additionally, unrestricted traffic may transit a network, which uses bandwidth and other resources. VPN traffic received from another enclave with different security policy or level of trust must not bypass being inspected by the firewall before being forwarded to the private network.
STIG Date
HPE Aruba Networking AOS VPN Security Technical Implementation Guide 2024-10-29

Details

Check Text (C-70916r1040890_chk)
Verify the AOS configuration with the following command:
show running-config | begin "interface gigabit"

Note the configured IP access-group session ACL for each active interface.

For each configured ACL:
show ip access-list <ACL name>

If each ACL does not end in an "any any deny log" for both IPv4 and IPv6, this is a finding.
Fix Text (F-70819r1040741_fix)
Configure AOS with the following commands:
configure terminal
ip access-list session <name>
network <A.B.C.D> <netmask A.B.C.D> any any permit
any any any deny log
ipv6 network <X:X:X:X::X/<0-128> any any permit
ipv6 any any any deny log
exit
write memory
interface gigabit <#/#/#>
ip access-group session <ACL name>
exit
write mem