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https://github.com/ghndrx/prowler.git
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71 lines
3.9 KiB
Bash
71 lines
3.9 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="Medium"
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CHECK_ALTERNATE_check775="extra775"
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CHECK_SERVICENAME_extra775="autoscaling"
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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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