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https://github.com/ghndrx/prowler.git
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50 lines
2.6 KiB
Bash
50 lines
2.6 KiB
Bash
#!/usr/bin/env bash
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# Prowler - the handy cloud security tool (copyright 2018) by Toni de la Fuente
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy
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# of the License at http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software distributed
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# under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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# CONDITIONS OF ANY KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations under the License.
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CHECK_ID_extra7143="7.143"
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CHECK_TITLE_extra7143="[extra7143] Check if EFS have policies which allow access to everyone"
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CHECK_SCORED_extra7143="NOT_SCORED"
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CHECK_CIS_LEVEL_extra7143="EXTRA"
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CHECK_SEVERITY_extra7143="Critical"
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CHECK_ASFF_RESOURCE_TYPE_extra7143="AwsEFS"
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CHECK_ALTERNATE_check7143="extra7143"
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CHECK_SERVICENAME_extra7143="efs"
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CHECK_RISK_extra7143='EFS accessible to everyone could expose sensible data to bad actors'
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CHECK_REMEDIATION_extra7143='Ensure efs has some policy but it does not have principle as *'
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CHECK_DOC_extra7143='https://docs.aws.amazon.com/efs/latest/ug/access-control-block-public-access.html'
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CHECK_CAF_EPIC_extra7143='Data Protection'
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extra7143(){
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# "Check if EFS have policies which allow access to everyone (Not Scored) (Not part of CIS benchmark)"
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for regx in $REGIONS; do
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LIST_OF_EFS_IDS=$($AWSCLI efs describe-file-systems $PROFILE_OPT --region $regx --query FileSystems[*].FileSystemId --output text|xargs -n1)
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if [[ $LIST_OF_EFS_IDS ]]; then
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for efsId in $LIST_OF_EFS_IDS;do
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EFS_POLICY_STATEMENTS=$($AWSCLI efs $PROFILE_OPT describe-file-system-policy --region $regx --file-system-id $efsId --output json --query Policy 2>&1)
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if [[ $EFS_POLICY_STATEMENTS == *PolicyNotFound* ]]; then
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textFail "$regx: EFS: $efsId doesn't have any policy which means it grants full access to any client" "$regx" "$efsId"
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else
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EFS_POLICY_BAD_STATEMENTS=$(echo $EFS_POLICY_STATEMENTS | jq '. | fromjson' | jq '.Statement[] | select(.Effect=="Allow") | select(.Principal=="*" or .Principal.AWS=="*" or .Principal.CanonicalUser=="*")')
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if [[ $EFS_POLICY_BAD_STATEMENTS != "" ]]; then
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textFail "$regx: EFS $efsId has policy which allows access to everyone" "$regx" "$efsId"
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else
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textPass "$regx: EFS $efsId has policy which does not allow access to everyone" "$regx" "$efsId"
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fi
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fi
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done
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else
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textInfo "$regx: No EFS found" "$regx"
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fi
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done
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}
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