STIGQter STIGQter: STIG Summary: VMware NSX 4.x Distributed Firewall Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 30 Jan 2025:

The NSX Distributed Firewall must configure SpoofGuard to restrict it from accepting outbound packets that contain an illegitimate address in the source address.

DISA Rule

SV-265630r993987_rule

Vulnerability Number

V-265630

Group Title

SRG-NET-000364-FW-000042

Rule Version

NDFW-4X-000029

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

To create a segment profile with SpoofGuard enabled, do the following:

From the NSX Manager web interface, navigate to Networking >> Connectivity >> Segments >> Profiles >> Segment Profiles >> Add Segment Profile >> SpoofGuard.

Enter a profile name and enable port bindings, then click "Save".

To update a segments SpoofGuard profile, do the following:

From the NSX Manager web interface, navigate to the Networking >> Connectivity >> Segments >> NSX, and click "Edit" from the drop-down menu next to the target segment.

Expand "Segment Profiles" then choose the new SpoofGuard profile from the drop-down list, and then click "Save".

Check Contents

Identity SpoofGuard profiles in use by doing the following:

From the NSX Manager web interface, navigate to Networking >> Connectivity >> Segments >> NSX.

For each segment, expand view Segment Profiles >> SpoofGuard to note the profiles in use.

Review SpoofGuard profile configuration by doing the following:

From the NSX Manager web interface, navigate to Networking >> Connectivity >> Segments >> Profiles >> Segment Profiles.

Review the SpoofGuard profiles previously identified as assigned to segments to ensure the following configuration:

Port Bindings: Yes

If a segment is not configured with a SpoofGuard profile that has port bindings enabled, this is a finding.

Vulnerability Number

V-265630

Documentable

False

Rule Version

NDFW-4X-000029

Severity Override Guidance

Identity SpoofGuard profiles in use by doing the following:

From the NSX Manager web interface, navigate to Networking >> Connectivity >> Segments >> NSX.

For each segment, expand view Segment Profiles >> SpoofGuard to note the profiles in use.

Review SpoofGuard profile configuration by doing the following:

From the NSX Manager web interface, navigate to Networking >> Connectivity >> Segments >> Profiles >> Segment Profiles.

Review the SpoofGuard profiles previously identified as assigned to segments to ensure the following configuration:

Port Bindings: Yes

If a segment is not configured with a SpoofGuard profile that has port bindings enabled, this is a finding.

Check Content Reference

M

Target Key

5630