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prowler/include/securityhub_integration
2020-09-03 16:57:59 +02:00

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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.
# Checks that the correct mode (json-asff) has been specified if wanting to send check output to AWS Security Hub
# and that Security Hub is enabled in the chosen region
checkSecurityHubCompatibility(){
local regx
if [[ "${MODE}" != "json-asff" ]]; then
echo -e "\n$RED ERROR!$NORMAL Output can only be sent to Security Hub when the output mode is json-asff, i.e. -M json-asff -S\n"
EXITCODE=1
exit $EXITCODE
fi
for regx in $REGIONS; do
SECURITY_HUB_ENABLED=$($AWSCLI securityhub --region "$regx" $PROFILE_OPT describe-hub)
if [[ -z "${SECURITY_HUB_ENABLED}" ]]; then
echo -e "\n$RED ERROR!$NORMAL Security Hub is not enabled in $regx. Enable it by calling '$AWSCLI securityhub --region $regx $PROFILE_OPT enable-security-hub'\n"
EXITCODE=1
exit $EXITCODE
fi
done
}
resolveSecurityHubPreviousFails(){
# Move previous check findings to Workflow to PASSED (as prowler didn't re-detect them)
for regx in $REGIONS; do
local check="$1"
NEW_TIMESTAMP=$(get_iso8601_timestamp)
PREVIOUS_DATE=$(get_iso8601_hundred_days_ago)
FILTER="{\"UpdatedAt\":[{\"Start\":\"$PREVIOUS_DATE\",\"End\":\"$TIMESTAMP\"}],\"GeneratorId\":[{\"Value\": \"prowler-$check\",\"Comparison\":\"PREFIX\"}],\"ComplianceStatus\":[{\"Value\": \"FAILED\",\"Comparison\":\"EQUALS\"}]}"
SECURITY_HUB_PREVIOUS_FINDINGS=$($AWSCLI securityhub --region "$regx" $PROFILE_OPT get-findings --filters "${FILTER}" | jq -c --arg updated_at $NEW_TIMESTAMP '[ .Findings[] | .Compliance = {"Status":"PASSED"} | .UpdatedAt = $updated_at ]')
if [[ $SECURITY_HUB_PREVIOUS_FINDINGS != "[]" ]]; then
BATCH_IMPORT_RESULT=$($AWSCLI securityhub --region "$regx" $PROFILE_OPT batch-import-findings --findings "${SECURITY_HUB_PREVIOUS_FINDINGS}")
# Check for success if imported
if [[ -z "${BATCH_IMPORT_RESULT}" ]] || ! jq -e '.SuccessCount == 1' <<< "${BATCH_IMPORT_RESULT}" > /dev/null 2>&1; then
echo -e "\n$RED ERROR!$NORMAL Failed to send check output to AWS Security Hub\n"
fi
fi
done
}
sendToSecurityHub(){
local findings="$1"
local region="$2"
BATCH_IMPORT_RESULT=$($AWSCLI securityhub --region "$region" $PROFILE_OPT batch-import-findings --findings "${findings}")
# Check for success if imported
if [[ -z "${BATCH_IMPORT_RESULT}" ]] || ! jq -e '.SuccessCount == 1' <<< "${BATCH_IMPORT_RESULT}" > /dev/null 2>&1; then
echo -e "\n$RED ERROR!$NORMAL Failed to send check output to AWS Security Hub\n"
fi
}