#!/usr/bin/env bash

# Prowler - the handy cloud security tool (copyright 2018) 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_extra742="7.42"
CHECK_TITLE_extra742="[extra742] Find keys in CloudFormation outputs (Not Scored) (Not part of CIS benchmark)"
CHECK_SCORED_extra742="NOT_SCORED"
CHECK_TYPE_extra742="EXTRA"
CHECK_ALTERNATE_check742="extra742"

extra742(){
  textInfo "Looking for keys in CloudFormation output across all regions... "
  for regx in $REGIONS; do
    LIST_OF_CFN_STACKS=$($AWSCLI cloudformation describe-stacks $PROFILE_OPT --region $regx --query Stacks[*].[StackName] --output text)
    if [[ $LIST_OF_CFN_STACKS ]];then
      for stack in $LIST_OF_CFN_STACKS; do
        OUTPUTS_FILE=$stack-$regx-output.txt
        OUTPUTS=$($AWSCLI $PROFILE_OPT --region $regx cloudformation describe-stacks --query "Stacks[?StackName==\`$stack\`].Outputs[*].[OutputKey,OutputValue]" --output text > $OUTPUTS_FILE)
        if [ -s $OUTPUTS ];then
          #FINDINGS=$(grep '[A-Za-z0-9]\{20,40\}' $USERDATA_FILE | grep -i -e key -e secret -e token -e pass - |wc -l|tr -d '\ ')
          #FINDINGS=$(grep -i -e key -e secret -e token -e pass $USERDATA_FILE |wc -l|tr -d '\ ')
          # This finds ftp or http URLs with credentials and common keywords
          FINDINGS=$(egrep -i '[[:alpha:]]*://[[:alnum:]]*:[[:alnum:]]*@.*/|key|secret|token|pass' $OUTPUTS_FILE |wc -l|tr -d '\ ')
          if [[ $FINDINGS -eq "0" ]]; then
            textPass "$regx: No keys found in Stack $stack" "$regx"
            # delete file if nothing interesting is there
            rm -f $OUTPUTS_FILE
          else
            textFail "$regx: Found $FINDINGS keys in $stack! Check file $OUTPUTS_FILE" "$regx"
          fi
        else
          textPass "$regx: Stack $stack has not Outputs" "$regx"
        fi
      done
    else
      textInfo "$regx: No CloudFormation stacks found" "$regx"
    fi
  done
}