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Added check extra742 to find keys in CloudFormation Outputs

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Toni de la Fuente
2019-03-12 22:40:40 -04:00
parent 07f426aec0
commit bde9482928
1 changed files with 47 additions and 0 deletions
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#!/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
}