cis-gworkspace-6-8

name	cis-gworkspace-6.8
description	Ensure Gmail potential employee spoofing is configured
category	cis-gworkspace
version	1.3.0
author	cyberstrike-official
tags	["cis","gcp","google-workspace","rules","alerts","spoofing"]
cis_id	6.8
cis_benchmark	CIS Google Workspace Foundations Benchmark v1.3.0
tech_stack	["gcp","google-workspace"]
cwe_ids	[]
chains_with	[]
prerequisites	[]
severity_boost	{}

6.8 Ensure Gmail potential employee spoofing is configured

Profile Applicability

• Enterprise Level 1

Description

Configuring and enabling the setting that an alert will be generated when Google detects incoming messages are received where a sender's name is in your Google Workspace directory, but the mail is not from your company's domains or domain aliases.

Rationale

Ensuring that administrators are alerted when the email is being spoofed since this could be an indication of a phishing attempt.

Impact

This setting should have no impact on the end user but will send emails to super administrators when triggered.

Audit

To verify this setting via the Google Workspace Admin Console:

1. Log in to https://admin.google.com as an administrator.
2. Select Rules.
3. Under Google protects you by default select View list.
4. Scroll to Gmail potential employee spoofing and select it.
5. Ensure that Alerts is set to On.
6. Ensure the Severity is set to Medium.
7. Ensure that Email Notifications is set to On.
8. Ensure that Email notification recipients is set to All super administrators.

Remediation

To verify this setting via the Google Workspace Admin Console:

1. Log in to https://admin.google.com as an administrator.
2. Select Rules.
3. Under Google protects you by default select View list.
4. Scroll to Gmail potential employee spoofing and select it.
5. Within the Actions pane, click the edit pencil on the right side of the pane.
6. Select Send to alert center (This will result in the alert being set to On).
7. Set the alert severity to Medium.
8. To enable emails when this alert condition is met, select Send email notifications. Once enabled, the All super administrators option is selected by default.
9. Click Review to confirm the values.
10. Click Update Rule.
11. Confirm that the shows an Alert status of in the list.