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prowler/checks/check27
2021-02-03 17:07:02 -05:00

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#!/usr/bin/env bash
# Prowler - the handy cloud security tool (c) by Toni de la Fuente
#
# This Prowler check is licensed under a
# Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
#
# You should have received a copy of the license along with this
# work. If not, see <http://creativecommons.org/licenses/by-nc-sa/4.0/>.
CHECK_ID_check27="2.7"
CHECK_TITLE_check27="[check27] Ensure CloudTrail logs are encrypted at rest using KMS CMKs (Scored)"
CHECK_SCORED_check27="SCORED"
CHECK_TYPE_check27="LEVEL2"
CHECK_SEVERITY_check27="Medium"
CHECK_ASFF_TYPE_check27="Software and Configuration Checks/Industry and Regulatory Standards/CIS AWS Foundations Benchmark"
CHECK_ASFF_RESOURCE_TYPE_check27="AwsCloudTrailTrail"
CHECK_ALTERNATE_check207="check27"
CHECK_ASFF_COMPLIANCE_TYPE_check27="ens-op.exp.10.aws.trail.5"
CHECK_SERVICENAME_check27="cloudtrail"
check27(){
trail_count=0
# "Ensure CloudTrail logs are encrypted at rest using KMS CMKs (Scored)"
for regx in $REGIONS; do
TRAILS_AND_REGIONS=$($AWSCLI cloudtrail describe-trails $PROFILE_OPT --region $regx --query 'trailList[*].{Name:TrailARN, HomeRegion:HomeRegion}' --output text 2>&1 | tr " " ',')
if [[ $(echo "$TRAILS_AND_REGIONS" | grep AccessDenied) ]]; then
textFail "Access Denied trying to describe trails in $regx"
continue
fi
if [[ $TRAILS_AND_REGIONS ]]; then
for reg_trail in $TRAILS_AND_REGIONS; do
TRAIL_REGION=$(echo $reg_trail | cut -d',' -f1)
if [ $TRAIL_REGION != $regx ]; then # Only report trails once in home region
continue
fi
trail=$(echo $reg_trail | cut -d',' -f2)
trail_count=$((trail_count + 1))
KMSKEYID=$($AWSCLI cloudtrail describe-trails $PROFILE_OPT --region $TRAIL_REGION --query 'trailList[*].KmsKeyId' --output text --trail-name-list $trail)
if [[ "$KMSKEYID" ]];then
textPass "Trail $trail in $regx has encryption enabled"
else
textFail "Trail $trail in $regx has encryption disabled"
fi
done
fi
done
if [[ $trail_count == 0 ]]; then
textFail "No CloudTrail trails were found in the account"
fi
}