mirror of
https://github.com/ghndrx/prowler.git
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76 lines
3.7 KiB
Bash
76 lines
3.7 KiB
Bash
#!/usr/bin/env bash
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# Prowler - the handy cloud security tool (copyright 2019) 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_extra742="7.42"
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CHECK_TITLE_extra742="[extra742] Find secrets in CloudFormation outputs"
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CHECK_SCORED_extra742="NOT_SCORED"
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CHECK_CIS_LEVEL_extra742="EXTRA"
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CHECK_SEVERITY_extra742="Critical"
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CHECK_ASFF_RESOURCE_TYPE_extra742="AwsCloudFormationStack"
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CHECK_ALTERNATE_check742="extra742"
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CHECK_SERVICENAME_extra742="cloudformation"
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CHECK_RISK_extra742='Secrets hardcoded into CloudFormation outputs can be used by malware and bad actors to gain lateral access to other services.'
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CHECK_REMEDIATION_extra742='Implement automated detective control (e.g. using tools like Prowler ) to scan accounts for passwords and secrets. Use secrets manager service to store and retrieve passwords and secrets. '
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CHECK_DOC_extra742='https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-secretsmanager-secret-generatesecretstring.html'
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CHECK_CAF_EPIC_extra742='IAM'
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extra742(){
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SECRETS_TEMP_FOLDER="$PROWLER_DIR/secrets-$ACCOUNT_NUM"
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if [[ ! -d $SECRETS_TEMP_FOLDER ]]; then
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# this folder is deleted once this check is finished
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mkdir "${SECRETS_TEMP_FOLDER}"
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fi
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for regx in $REGIONS; do
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CHECK_DETECT_SECRETS_INSTALLATION=$(secretsDetector)
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if [[ $? -eq 241 ]]; then
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textInfo "$regx: python library detect-secrets not found. Make sure it is installed correctly." "$regx"
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else
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CFN_STACKS=$("${AWSCLI}" cloudformation describe-stacks $PROFILE_OPT --region "${regx}" --output json 2>&1)
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if grep -q -E 'AccessDenied|UnauthorizedOperation|AuthorizationError' <<< "$CFN_STACKS" ; then
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textInfo "$regx: Access Denied trying to describe stacks" "$regx"
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continue
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fi
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LIST_OF_CFN_STACKS=$(jq -r '.Stacks[].StackName' <<< "${CFN_STACKS}")
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if [[ $LIST_OF_CFN_STACKS ]];then
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for stackName in $LIST_OF_CFN_STACKS; do
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CFN_OUTPUTS_FILE="$SECRETS_TEMP_FOLDER/extra742-${stackName}-${regx}-outputs.txt"
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# OutputKey and OutputValue are separated by a colon because secrets-detector needs a way to link both values
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jq --arg stackName "$stackName" -r '.Stacks[] | select( .StackName == $stackName ) | .Outputs[]? | "\(.OutputKey):\(.OutputValue)"' <<< "${CFN_STACKS}" > "${CFN_OUTPUTS_FILE}"
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if [ -s "${CFN_OUTPUTS_FILE}" ];then
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FINDINGS=$(secretsDetector file "${CFN_OUTPUTS_FILE}")
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if [[ $FINDINGS -eq 0 ]]; then
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textPass "$regx: No secrets found in stack ${stackName} Outputs" "$regx" "${stackName}"
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# Delete file if nothing interesting is there
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rm -f "${CFN_OUTPUTS_FILE}"
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else
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textFail "$regx: Potential secret found in stack ${stackName} Outputs" "$regx" "${stackName}"
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# Delete file to not leave trace, user must look at the CFN Stack
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rm -f "${CFN_OUTPUTS_FILE}"
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fi
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else
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textInfo "$regx: CloudFormation stack ${stackName} has no Outputs" "$regx"
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fi
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done
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else
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textInfo "$regx: No CloudFormation stacks found" "$regx"
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fi
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fi
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done
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# Cleanup temporary folder
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if [[ -d $SECRETS_TEMP_FOLDER ]]
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then
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rm -rf "${SECRETS_TEMP_FOLDER}"
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fi
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}
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