mirror of
https://github.com/ghndrx/prowler.git
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75 lines
4.5 KiB
Bash
75 lines
4.5 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_extra775="7.75"
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CHECK_TITLE_extra775="[extra775] Find secrets in EC2 Auto Scaling Launch Configuration (Not Scored) (Not part of CIS benchmark)"
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CHECK_SCORED_extra775="NOT_SCORED"
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CHECK_TYPE_extra775="EXTRA"
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CHECK_SEVERITY_extra775="Critical"
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CHECK_ALTERNATE_check775="extra775"
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CHECK_SERVICENAME_extra775="autoscaling"
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CHECK_RISK_extra775='The use of a hard-coded password increases the possibility of password guessing. If hard-coded passwords are used; it is possible that malicious users gain access through the account in question.'
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CHECK_REMEDIATION_extra775='Use Secrets Manager to securely provide database credentials to Lambda functions and secure the databases as well as use the credentials to connect and query them without hardcoding the secrets in code or passing them through environmental variables. '
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CHECK_DOC_extra775='https://docs.aws.amazon.com/secretsmanager/latest/userguide/lambda-functions.html'
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CHECK_CAF_EPIC_extra775='IAM'
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extra775(){
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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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textInfo "Looking for secrets in EC2 Auto Scaling Launch Configuration across all regions... (max 100 autoscaling_configurations per region use -m to increase it) "
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for regx in $REGIONS; do
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LIST_OF_EC2_AUTOSCALING=$($AWSCLI autoscaling describe-launch-configurations $PROFILE_OPT --region $regx --query LaunchConfigurations[*].LaunchConfigurationName --output text --max-items $MAXITEMS | grep -v None)
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if [[ $LIST_OF_EC2_AUTOSCALING ]];then
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for autoscaling_configuration in $LIST_OF_EC2_AUTOSCALING; do
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EC2_AUTOSCALING_USERDATA_FILE="$SECRETS_TEMP_FOLDER/extra775-$autoscaling_configuration-userData.decoded"
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EC2_AUTOSCALING_USERDATA=$($AWSCLI autoscaling describe-launch-configurations $PROFILE_OPT --launch-configuration-names $autoscaling_configuration --region $regx --query LaunchConfigurations[*].UserData --output text| grep -v ^None | decode_report > $EC2_AUTOSCALING_USERDATA_FILE)
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if [ -s $EC2_AUTOSCALING_USERDATA_FILE ];then
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FILE_FORMAT_ASCII=$(file -b $EC2_AUTOSCALING_USERDATA_FILE | grep ASCII)
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# This finds ftp or http URLs with credentials and common keywords
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# FINDINGS=$(egrep -i '[[:alpha:]]*://[[:alnum:]]*:[[:alnum:]]*@.*/|key|secret|token|pass' $EC2_AUTOSCALING_USERDATA_FILE |wc -l|tr -d '\ ')
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# New implementation using https://github.com/Yelp/detect-secrets
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if [[ $FILE_FORMAT_ASCII ]]; then
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FINDINGS=$(secretsDetector file $EC2_AUTOSCALING_USERDATA_FILE)
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if [[ $FINDINGS -eq 0 ]]; then
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textPass "$regx: No secrets found in $autoscaling_configuration" "$regx"
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# delete file if nothing interesting is there
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rm -f $EC2_AUTOSCALING_USERDATA_FILE
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else
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textFail "$regx: Potential secret found in $autoscaling_configuration" "$regx"
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# delete file to not leave trace, user must look at the autoscaling_configuration User Data
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rm -f $EC2_AUTOSCALING_USERDATA_FILE
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fi
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else
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mv $EC2_AUTOSCALING_USERDATA_FILE $EC2_AUTOSCALING_USERDATA_FILE.gz ; gunzip $EC2_AUTOSCALING_USERDATA_FILE.gz
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FINDINGS=$(secretsDetector file $EC2_AUTOSCALING_USERDATA_FILE)
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if [[ $FINDINGS -eq 0 ]]; then
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textPass "$regx: No secrets found in $autoscaling_configuration User Data" "$regx"
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rm -f $EC2_AUTOSCALING_USERDATA_FILE
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else
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textFail "$regx: Potential secret found in $autoscaling_configuration" "$regx"
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fi
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fi
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else
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textPass "$regx: No secrets found in $autoscaling_configuration User Data or it is empty" "$regx"
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fi
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done
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else
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textInfo "$regx: No EC2 autoscaling_configurations found" "$regx"
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fi
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done
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rm -rf $SECRETS_TEMP_FOLDER
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}
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