Implementing Cloud Security Posture Management (CSPM) to continuously monitor multi-cloud environments for misconfigurations, compliance violations, and security risks using Prowler, ScoutSuite, AWS Security Hub, Azure Defender, and GCP Security Command Center.
Do not use for runtime workload protection (use CWPP tools like Falco or Aqua), for application security testing (use DAST/SAST tools), or for network intrusion detection (use cloud-native IDS like GuardDuty or Network Watcher).
pip install prowler)pip install scoutsuite)Enable the built-in CSPM capabilities in each cloud provider for baseline posture assessment.
# AWS: Enable Security Hub with FSBP and CIS standards
aws securityhub enable-security-hub --enable-default-standards
aws securityhub batch-enable-standards --standards-subscription-requests \
'[{"StandardsArn":"arn:aws:securityhub:::standards/cis-aws-foundations-benchmark/v/1.4.0"}]'
# Azure: Enable Microsoft Defender for Cloud (CSPM tier)
az security pricing create --name CloudPosture --tier standard
az security auto-provisioning-setting update --name default --auto-provision on
# GCP: Enable Security Command Center Premium
gcloud services enable securitycenter.googleapis.com
gcloud scc settings update --organization=ORG_ID \
--enable-asset-discovery
Execute Prowler to perform comprehensive security checks across all three cloud providers.
# AWS assessment with all CIS checks
prowler aws \
--profile production \
-M json-ocsf csv html \
-o ./prowler-results/aws/ \
--compliance cis_1.4_aws cis_1.5_aws
# Azure assessment
prowler azure \
--subscription-ids SUB_ID_1 SUB_ID_2 \
-M json-ocsf csv html \
-o ./prowler-results/azure/ \
--compliance cis_2.0_azure
# GCP assessment
prowler gcp \
--project-ids project-1 project-2 \
-M json-ocsf csv html \
-o ./prowler-results/gcp/ \
--compliance cis_2.0_gcp
# View summary across all providers
prowler aws --list-compliance
Use ScoutSuite for a unified multi-cloud security assessment with visual reporting.
# Scan AWS
python3 -m ScoutSuite aws --profile production \
--report-dir ./scoutsuite/aws/
# Scan Azure
python3 -m ScoutSuite azure --cli \
--all-subscriptions \
--report-dir ./scoutsuite/azure/
# Scan GCP
python3 -m ScoutSuite gcp --user-account \
--all-projects \
--report-dir ./scoutsuite/gcp/
# Each produces an HTML report with risk-scored findings
Create a scheduled pipeline that runs CSPM checks daily and routes findings to appropriate channels.
# Create a daily Prowler scan with EventBridge + CodeBuild (AWS)
cat > buildspec.yml << 'EOF'