lacework-global-634

6.6 Ensure that Network Watcher is 'Enabled' (Automated)

note

This rule has been changed to automated, see Automated Rules for CIS Azure 1.5.0 for details.

Profile Applicability

• Level 2

Description

Enable Network Watcher for Azure subscriptions.

Rationale

Network diagnostic and visualization tools available with Network Watcher help users understand, diagnose, and gain insights to the network in Azure.

Impact

There are additional costs per transaction to run and store network data. For high-volume networks these charges will add up quickly.

Audit

From Azure Portal

1. Go to Network Watcher
2. Ensure that the STATUS is set to Enabled

From Azure CLI

az network watcher list

This will list all regions where provisioningState is Succeeded.

Then run

az account list-locations

This will list all regions that exist in the subscription. Compare this list to the previous one to ensure that for all regions, provisioningState is set to Succeeded.

From Azure Powershell

Get a list of Network Watchers

Get-AzNetworkWatcher

Make sure each watcher is set with the ProvisioningState setting set to Succeeded.

Remediation

Opting out of Network Watcher automatic enablement is a permanent change. Once you opt-out you cannot opt-in without contacting support.

References

https://docs.microsoft.com/en-us/azure/network-watcher/network-watcher-monitoring-overview
https://docs.azure.cn/zh-cn/cli/network/watcher?view=azure-cli-latest#az_network_watcher_list
https://docs.azure.cn/zh-cn/cli/network/watcher?view=azure-cli-latest#az_network_watcher_configure
https://docs.microsoft.com/en-us/azure/network-watcher/network-watcher-create
https://docs.microsoft.com/en-us/azure/security/benchmarks/security-controls-v2-logging-threat-detection#lt-3-enable-logging-for-azure-network-activities
https://azure.microsoft.com/en-ca/pricing/details/network-watcher/