The NSX-T Tier-1 Gateway Firewall must configure SpoofGuard to block outbound IP packets that contain illegitimate packet attributes.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-251769 | T1FW-3X-000036 | SV-251769r856688_rule | Medium |
| Description |
| If outbound communications traffic is not filtered, hostile activity intended to harm other networks may not be detected and prevented. |
| STIG | Date |
| VMware NSX-T Tier 1 Gateway Firewall Security Technical Implementation Guide | 2023-06-22 |
Details
| Check Text (C-55206r810200_chk) |
| From the NSX-T Manager web interface, go to Networking >> Segments, and for each Segment, view Segment Profiles >> SpoofGuard. If a Segment is not configured with a SpoofGuard profile that has Port Binding enabled, this is a finding. |
| Fix Text (F-55160r810201_fix) |
| To create a segment profile with SpoofGuard enabled do the following: From the NSX-T Manager web interface, go to Networking >> Segments >> Segment Profiles >> Add Segment Profile >> SpoofGuard. Enter a profile name and enable port bindings, then click "Save". To update a Segment's SpoofGuard profile, do the following: From the NSX-T Manager web interface, go to the Networking >> Segments, then click "Edit" from the drop-down menu next to the target Segment. Expand Segment Profiles, choose the new SpoofGuard profile from the drop-down list, and then click "Save". |