#!/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_extra7173="7.173"
CHECK_TITLE_extra7173="[check7173] Security Groups created by EC2 Launch Wizard"
CHECK_SCORED_extra7173="NOT_SCORED"
CHECK_CIS_LEVEL_extra7173="EXTRA"
CHECK_SEVERITY_extra7173="Medium"
CHECK_ASFF_RESOURCE_TYPE_extra7173="AwsEc2SecurityGroup"
CHECK_ALTERNATE_extra7173="extra7173"
CHECK_SERVICENAME_extra7173="ec2"
CHECK_RISK_cextra7173="Security Groups Created on the AWS Console using the EC2 wizard may allow port 22 from 0.0.0.0/0"
CHECK_REMEDIATION_extra7173="Apply Zero Trust approach. Implement a process to scan and remediate security groups created by the EC2 Wizard. Recommended best practices is to use an authorized security group."
CHECK_DOC_extra7173="CHECK_DOC_extra7173='https://docs.aws.amazon.com/eks/latest/userguide/sec-group-reqs.html'"
CHECK_CAF_EPIC_extra7173="Infrastructure Security"

extra7173(){
  # Ensure no security groups are created using Console EC2 Wizard
  for regx in $REGIONS; do
    CHECK_SGDEFAULT_IDS=$("${AWSCLI}" ec2 describe-security-groups ${PROFILE_OPT} --region "${regx}" --filters Name=group-name,Values='launch-wizard-*' --query 'SecurityGroups[*].GroupId[]' --output text 2>&1)
    if grep -q -E 'AccessDenied|UnauthorizedOperation' <<< "${CHECK_SGDEFAULT_IDS}"; then
        textInfo "${regx}: Access Denied trying to describe security groups" "${regx}"
        continue
    fi
    if [[ ${CHECK_SGDEFAULT_IDS} ]]; then
      for CHECK_SGDEFAULT_ID in ${CHECK_SGDEFAULT_IDS}; do
          SECURITY_GROUP_NAME=$(${AWSCLI} ec2 describe-security-groups ${PROFILE_OPT} --region "${regx}" --group-ids "${CHECK_SGDEFAULT_ID}" --query 'SecurityGroups[*].GroupName[]' --output text 2>&1)
          textFail "${regx}: Security Group ${SECURITY_GROUP_NAME} (ID: ${CHECK_SGDEFAULT_ID}) was created using the EC2 Launch Wizard" "${regx}" "${CHECK_SGDEFAULT_ID}"
      done
    else
      textPass "${regx}: No Security Groups found that were created using the Wizard" "${regx}" "${CHECK_SGDEFAULT_ID}"  
    fi
  done
}