standard
turbot/azure_cis

Pipeline: 7.5 Ensure that Network Security Group Flow Log retention period is 'greater than 90 days'

Description

Network Security Group Flow Logs should be enabled and the retention period set to greater than or equal to 90 days.

Flow logs enable capturing information about IP traffic flowing in and out of network security groups. Logs can be used to check for anomalies and give insight into suspected breaches.

Remediation

From Azure Portal

  1. Go to Network Watcher.
  2. Select NSG flow logs blade in the Logs section.
  3. Select each Network Security Group from the list.
  4. Ensure Status is set to On.
  5. Ensure Retention (days) setting greater than 90 days.
  6. Select your storage account in the Storage account field.
  7. Select Save.

From Azure CLI

Enable the NSG flow logs and set the Retention (days) to greater than or equal to 90 days.

az network watcher flow-log configure --nsg <NameorID of the Network Security Group> --enabled true --resource-group <resourceGroupName> --retention 91 --storage-account <NameorID of the storage account to save flow logs>

Default Value

By default, Network Security Group Flow Logs are disabled.

Run the pipeline

To run this pipeline from your terminal:

flowpipe pipeline run azure_cis.pipeline.cis_v300_7_5

Use this pipeline

To call this pipeline from your pipeline, use a step:

step "pipeline" "step_name" {
pipeline = azure_cis.pipeline.cis_v300_7_5
}

Params

NameTypeRequiredDescriptionDefault
database
connection.steampipe
YesDatabase connection string.connection.steampipe.default
notifier
notifier
YesThe name of the notifier to use for sending notification messages.notifier.default
notification_level
string
YesThe verbosity level of notification messages to send. Valid options are 'verbose', 'info', 'error'.info

Outputs

This pipeline has no outputs.

Tags

folder = CIS v3.0.0/7 Networking