#!/usr/bin/env bash

# Prowler - the handy cloud security tool (copyright 2019) by Toni de la Fuente
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy
# of the License at http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software distributed
# under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
# CONDITIONS OF ANY KIND, either express or implied. See the License for the
# specific language governing permissions and limitations under the License.
CHECK_ID_extra7187="7.187"
CHECK_TITLE_extra7187="[extra7187] Ensure that your Amazon WorkSpaces storage volumes are encrypted in order to meet security and compliance requirements"
CHECK_SCORED_extra7187="NOT_SCORED"
CHECK_CIS_LEVEL_extra7187="EXTRA"
CHECK_SEVERITY_extra7187="High"
CHECK_ASFF_RESOURCE_TYPE_extra7187="AwsWorkspaces"
CHECK_ALTERNATE_check7187="extra7187"
CHECK_SERVICENAME_extra7187="workspaces"
CHECK_RISK_extra7187='If the value listed in the Volume Encryption column is Disabled the selected AWS WorkSpaces instance volumes (root and user volumes) are not encrypted. Therefore your data-at-rest is not protected from unauthorized access and does not meet the compliance requirements regarding data encryption.'
CHECK_REMEDIATION_extra7187='WorkSpaces is integrated with the AWS Key Management Service (AWS KMS). This enables you to encrypt storage volumes of WorkSpaces using AWS KMS Key. When you launch a WorkSpace you can encrypt the root volume (for Microsoft Windows - the C drive; for Linux - /) and the user volume (for Windows - the D drive; for Linux - /home). Doing so ensures that the data stored at rest - disk I/O to the volume - and snapshots created from the volumes are all encrypted'
CHECK_DOC_extra7187='https://docs.aws.amazon.com/workspaces/latest/adminguide/encrypt-workspaces.html'
CHECK_CAF_EPIC_extra7187='Infrastructure Security'

extra7187(){
  for regx in $REGIONS; do
    RT_VOL_UNENCRYPTED_WORKSPACES_ID_LIST=$($AWSCLI workspaces describe-workspaces --query "Workspaces[?RootVolumeEncryptionEnabled!=\`true\`].WorkspaceId" ${PROFILE_OPT} --region "${regx}" --output text 2>&1)
    if grep -q -E 'AccessDenied|UnauthorizedOperation|Could not connect to the endpoint URL|AuthorizationError'  <<< "$RT_VOL_UNENCRYPTED_WORKSPACES_ID_LIST"; then
        textInfo "$regx: Access Denied trying to describe workspaces" "$regx"
        continue
    fi
    USERVOL_UNENCRYPTED_WORKSPACES_ID_LIST=$($AWSCLI workspaces describe-workspaces --query "Workspaces[?UserVolumeEncryptionEnabled!=\`true\`].WorkspaceId" ${PROFILE_OPT} --region "${regx}" --output text 2>&1)
    if grep -q -E 'AccessDenied|UnauthorizedOperation|Could not connect to the endpoint URL|AuthorizationError'  <<< "$USERVOL_UNENCRYPTED_WORKSPACES_ID_LIST"; then
        textInfo "$regx: Access Denied trying to describe workspaces" "$regx"
        continue
    fi
    if [[ $RT_VOL_UNENCRYPTED_WORKSPACES_ID_LIST ]];then
      for RTVL in $RT_VOL_UNENCRYPTED_WORKSPACES_ID_LIST;do
        textFail "$regx: Found WorkSpaces: $RTVL with root volume unencrypted" "$regx" "$RTVL"
      done
    else
      textPass "$regx: No Workspaces with unencrypted root volume found" "$regx" "$RTVL"
    fi
    if [[ $USERVOL_UNENCRYPTED_WORKSPACES_ID_LIST ]];then
      for UVL in $USERVOL_UNENCRYPTED_WORKSPACES_ID_LIST;do
        textFail "$regx: Found WorkSpaces: $UVL with user volume unencrypted" "$regx" "$UVL"
      done
    else
      textPass "$regx: No Workspaces with unencrypted user volume found" "$regx" "$UVL"
    fi
  done
}