The NSX-T Tier-0 Gateway Firewall must generate traffic log entries containing information to establish the details of the event.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-251737	T0FW-3X-000006	SV-251737r810078_rule		Low

Description
Without sufficient information to analyze the event, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit event content that must be included to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. The Firewall must also generate traffic log records when traffic is denied, restricted, or discarded as well as when attempts are made to send packets between security zones that are not authorized to communicate. Satisfies: SRG-NET-000074-FW-000009, SRG-NET-000075-FW-000010, SRG-NET-000076-FW-000011, SRG-NET-000077-FW-000012, SRG-NET-000078-FW-000013, SRG-NET-000399-FW-000008, SRG-NET-000492-FW-000006, SRG-NET-000493-FW-000007

Description

Without sufficient information to analyze the event, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit event content that must be included to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. The Firewall must also generate traffic log records when traffic is denied, restricted, or discarded as well as when attempts are made to send packets between security zones that are not authorized to communicate. Satisfies: SRG-NET-000074-FW-000009, SRG-NET-000075-FW-000010, SRG-NET-000076-FW-000011, SRG-NET-000077-FW-000012, SRG-NET-000078-FW-000013, SRG-NET-000399-FW-000008, SRG-NET-000492-FW-000006, SRG-NET-000493-FW-000007

STIG	Date
VMware NSX-T Tier-0 Gateway Firewall Security Technical Implementation Guide	2023-06-22

Details

Check Text ( C-55174r810076_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-T Manager web interface, go to Security >> Gateway Firewall >> Gateway Specific Rules. For each Tier-0 Gateway and for each rule, click the gear icon and verify the Logging setting. If Logging is not Enabled, this is a finding.

Fix Text (F-55128r810077_fix)
From the NSX-T Manager web interface, go to Security >> Gateway Firewall >> Gateway Specific Rules. For each Tier-0 Gateway and for each rule with logging disabled, click the gear icon, enable Logging, and then click "Apply". After all changes are made, click "Publish".