Remediation

From Azure Portal

1. Go to Storage accounts.
2. Click the name of a storage account.
3. Under Data storage, click File shares.
4. Under File share settings, click the link next to Security.
5. If Profile is set to Maximum compatibility, click the drop-down menu and select Maximum security or Custom.
6. If selecting Custom, under SMB channel encryption, uncheck the boxes next to AES-128-CCM and AES-128-GCM.
7. Click Save.
8. Repeat steps 1-7 for each storage account requiring remediation.

From Azure CLI

For each storage account requiring remediation, run the following command to set the SMB channel encryption:

az storage account file-service-properties update \
    --resource-group {{resource-group-name}} \
    --account-name {{storage-account-name}} \
    --channel-encryption AES-256-GCM

From PowerShell

For each storage account requiring remediation, run the following command to set the SMB channel encryption:

Update-AzStorageFileServiceProperty `
    -ResourceGroupName {{resource-group-name}} `
    -StorageAccountName {{storage-account-name}} `
    -SmbChannelEncryption AES-256-GCM