cis-aws-euc-4-3

name	cis-aws-euc-4.3
description	Ensure Workdocs access is limited to a range of allowable IP addresses
category	cis-end-user-compute
version	1.2.0
author	cyberstrike-official
tags	["cis","aws","end-user-compute","workdocs","network-security","ip-filtering"]
cis_id	4.3
cis_benchmark	CIS AWS End User Compute Services Benchmark v1.2.0
tech_stack	["aws"]
cwe_ids	["CWE-284"]
chains_with	[]
prerequisites	[]
severity_boost	{}

Ensure Workdocs access is limited to a range of allowable IP addresses (Manual)

Profile Applicability

• Level 1

Description

Access to WorkDocs can be limited to an allowed range of IP addresses.

Rationale

Using IP address allow lists, you define and permit access to your WorkDocs site from trusted networks.

Impact

IP Lists currently only work for IPv4 addresses and denying access through an IP list is not supported.

Audit Procedure

Perform these steps to review the list of IP addresses allowed to access WorkDocs.

Using AWS Console

1. Log into the AWS console
2. Navigate to WorkDocs or go to WorkDocs Console at https://console.aws.amazon.com/zocalo/
3. Under My Account, choose Open admin control panel
4. For IP Allow List, choose Change
5. Review the IP address ranges and any single IP addresses
6. Click Cancel

If the IP address ranges do not match trusted networks refer to the remediation below to create or edit the IP Allow list.

Using AWS CLI

Not applicable - must be audited via Console.

Expected Result

IP Allow List is configured with trusted IP ranges only.

Remediation

Using AWS Console

Perform the steps below to create or edit the IP Allow list for WorkDocs:

1. Log into the AWS console
2. Navigate to WorkDocs or go to WorkDocs Console at https://console.aws.amazon.com/zocalo/
3. Under My Account, choose Open admin control panel
4. For IP Allow List, choose Change
5. For Enter CIDR value, enter the IP address ranges to allowlist. To allow access from a single IP address, specify /32 as the CIDR prefix
6. Click Add
7. Click Save Changes

Using AWS CLI

Not applicable - must be configured via Console.

Default Value

By default, no IP addresses are allowed.

References

1. https://docs.aws.amazon.com/workdocs/latest/adminguide/prereqs.html
2. https://aws.amazon.com/about-aws/whats-new/2018/10/amazon-workdocs-control-ip-address-access/