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The NSX Tier-0 Gateway Firewall must manage excess bandwidth to limit the effects of packet flooding types of denial-of-service (DoS) attacks.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-265367NT0F-4X-000015SV-265367r994344_ruleCCI-001095high
Description
A firewall experiencing a DoS attack will not be able to handle production traffic load. The high usage and CPU caused by a DoS attack will impact control of keep-alives and timers used for neighbor peering. This will result in route flapping and will eventually black hole production traffic. The device must be configured to contain and limit a DoS attack's effect on the device's resource usage. The use of redundant components and load balancing are examples of mitigating "flood-type" DoS attacks through increased capacity. Satisfies: SRG-NET-000193-FW-000030, SRG-NET-000192-FW-000029, SRG-NET-000362-FW-000028
STIGDate
VMware NSX 4.x Tier-0 Gateway Firewall Security Technical Implementation Guide2024-12-13

Related Frameworks

3 mappings across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (13) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

MON-01Continuous Monitoring
1.00
MON-01.1Intrusion Detection & Prevention Systems (IDS & IPS)
1.00
MON-01.3Inbound & Outbound Communications Traffic
1.00
MON-01.4System Generated Alerts
1.00
MON-01.8Security Event Monitoring
1.00
NET-01Network Security Controls (NSC)
1.00
NET-02Layered Network Defenses
1.00
SEA-01Secure Engineering Principles
1.00
SEA-02Alignment With Enterprise Architecture
1.00
CAP-01Capacity & Performance Management
0.50

+3 more (top 10 by confidence shown)

NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (43) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-10Concurrent Session Control
1.00
AC-17(10)Authenticate Remote Commands
1.00
AC-17(9)Disconnect or Disable Access
1.00
AC-2(4)Automated Audit Actions
1.00
AC-3Access Enforcement
1.00
AC-4Information Flow Enforcement
1.00
AC-6(10)Prohibit Non-privileged Users from Executing Privileged Functions
1.00
AC-6(8)Privilege Levels for Code Execution
1.00
AC-6(9)Log Use of Privileged Functions
1.00
AU-12Audit Record Generation
1.00

+33 more (top 10 by confidence shown)

CCI3 mappings
CCI-001094
1.00
CCI-001095
1.00
CCI-002385
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (3) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

DE.CM-01
1.00
PR.IR-01
1.00
PR.IR-04
0.50

Who does this work

12 NICE work roles and 9 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-265367r994344_chk)

If the Tier-0 Gateway is deployed in an Active/Active HA mode and no stateless rules exist, this is Not Applicable. From the NSX Manager web interface, go to Security >> Settings >> General Settings >> Firewall >> Flood Protection to view Flood Protection profiles. If there are no Flood Protection profiles of type "Gateway", this is a finding. For each gateway flood protection profile, if TCP Half Open Connection limit, UDP Active Flow Limit, ICMP Active Flow Limit, and Other Active Connection Limit are set to "None", this is a finding. For each gateway flood protection profile, examine the "Applied To" field to view the Tier-0 Gateways to which it is applied. If a gateway flood protection profile is not applied to all applicable Tier-0 Gateways through one or more policies, this is a finding.

Fix Text (F-69192r994343_fix)

To create a new Flood Protection profile, do the following: From the NSX Manager web interface, go to Security >> Settings >> General Settings >> Firewall >> Flood Protection >> Add Profile >> Add Edge Gateway Profile. Enter a name and specify appropriate values for the following: TCP Half Open Connection limit, UDP Active Flow Limit, ICMP Active Flow Limit, and Other Active Connection Limit. Configure the "Applied To" field to contain Tier-0 Gateways, and then click "Save".