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Introduction:
Cloud security teams are encountering a dangerous confusion: AWS Security Hub and AWS Security Hub CSPM are actually two different services sharing the same product name. The newer service—featuring better pricing and integrations—kept the original “AWS Security Hub” branding, while the legacy version now carries the “CSPM” suffix. This naming overlap creates critical risk exposure, as organizations may unknowingly rely on an outdated, less capable tool while believing they’re protected by the latest cloud security posture management (CSPM) capabilities.
Learning Objectives:
- Differentiate between AWS Security Hub (new) and AWS Security Hub CSPM (legacy) using technical identifiers and API responses.
- Execute migration paths from the legacy CSPM service to the modern Security Hub with verified AWS CLI commands and CloudFormation templates.
- Implement automated remediation workflows and cross-platform hardening techniques leveraging Security Hub findings.
You Should Know:
- Identifying Your Nightmare: Which “Security Hub” Is Actually Running?
The first step to avoiding a security blind spot is determining which service your AWS environment is using. AWS does not visually distinguish these products in the console, but their underlying API and integration behaviors differ drastically.
Step‑by‑step guide to identify the active service:
Linux / macOS (AWS CLI v2):
Check if legacy CSPM (old) is enabled – it uses a different API endpoint aws securityhub describe-hub --region us-east-1 For the new Security Hub, inspect control findings structure aws securityhub get-findings --region us-east-1 --max-items 5 | jq '.Findings[bash].ProductFields' Compare the "aws/securityhub" product ARN – legacy shows "SecurityHubCSPM" in metadata aws securityhub list-enabled-imports --region us-east-1 2>/dev/null || echo "Legacy CSPM likely not present"
Windows (PowerShell + AWS Tools):
Using AWSPowerShell module Get-SHUBHub -Region us-east-1 Legacy indicator – old version fails on newer parameters like 'ControlId' Get-SHUBFinding -Region us-east-1 -MaxResults 5 | Select-Object -Property FindingProviderFields
Key identifiers:
- New Security Hub: Supports `ControlId` in findings, integrates with AWS Config, and shows “Security Hub (new)” in the console banner.
- Legacy CSPM: Lacks cross‑account aggregation via delegated administrator, uses deprecated `productArn` format containing
aws-securityhub-cspm.
If you see “CSPM” appended in IAM actions (e.g., securityhubcspm:GetInsights), you’re running the legacy version. Proceed immediately to migration.
- Migration Playbook: Dumping Legacy CSPM for Modern Security Hub
Moving from the outdated CSPM-labeled service to the new Security Hub requires careful orchestration to avoid coverage gaps. This guide uses infrastructure-as-code for repeatability.
Step‑by‑step migration:
- Backup existing findings and custom insights (legacy only)
aws securityhub get-insights --region us-east-1 > legacy_insights_backup.json aws securityhub get-findings --region us-east-1 --max-items 5000 > legacy_findings_backup.json
-
Disable legacy CSPM in all affected regions (this does not delete data, only stops new findings)
for region in $(aws ec2 describe-regions --query "Regions[].RegionName" --output text); do echo "Disabling legacy in $region" aws securityhub disable-security-hub --region $region done
-
Enable the new Security Hub with optimal settings via CloudFormation
new-security-hub-enablement.yaml Resources: NewSecurityHub: Type: AWS::SecurityHub::Hub Properties: Tags: Version: "new" EnableDefaultStandards: true AutoEnableControls: Type: AWS::SecurityHub::Standard Properties: StandardArn: "arn:aws:securityhub:us-east-1::standards/aws-foundational-security-best-practices"
Deploy with:
aws cloudformation create-stack --stack-name NewSecurityHub --template-body file://new-security-hub-enablement.yaml --capabilities CAPABILITY_IAM
- Re‑ingest critical findings from backup – Use a Lambda function to push legacy findings into the new finding format (requires mapping `productArn` to new schema).
-
Validate migration – Run a test finding using the new `SendFinding` API:
aws securityhub batch-import-findings --region us-east-1 --findings '[{"SchemaVersion":"2018-10-08","Id":"test-migration","ProductArn":"arn:aws:securityhub:us-east-1::product/aws/securityhub","GeneratorId":"test","AwsAccountId":"123456789012","Types":["Software and Configuration Checks"],"CreatedAt":"2026-05-01T00:00:00Z","UpdatedAt":"2026-05-01T00:00:00Z","Severity":{"Label":"INFORMATIONAL"},"":"Migration test","Description":"Verifying new Security Hub works"}]' -
Hardening Cloud Posture: Automating Remediation with New Security Hub
The modern Security Hub integrates native event‑driven automation via Amazon EventBridge, eliminating the need for legacy CSPM’s polling-based architecture.
Step‑by‑step automated remediation for S3 public block violations:
-
Create a custom action in Security Hub to tag findings for remediation:
aws securityhub create-action-target --name "FixS3PublicBlock" --description "Auto-rem S3 public ACLs" --id S3Fix
-
Deploy an EventBridge rule that triggers a Lambda on all `S3.Bucket.PublicReadWrite` findings:
{ "source": ["aws.securityhub"], "detail-type": ["Security Hub Findings - Imported"], "detail": { "findings": { "Types": ["Effects/Data Exposure"], "ProductFields": { "ControlId": ["S3.1"] } } } }
3. Lambda remediation code (Python 3.11+) :
import boto3
def lambda_handler(event, context):
finding = event['detail']['findings'][bash]
bucket = finding['Resources'][bash]['Id'].split(':')[-1]
s3 = boto3.client('s3')
s3.put_public_access_block(
Bucket=bucket,
PublicAccessBlockConfiguration={
'BlockPublicAcls': True,
'IgnorePublicAcls': True,
'BlockPublicPolicy': True,
'RestrictPublicBuckets': True
}
)
Update finding status
securityhub = boto3.client('securityhub')
securityhub.batch_update_findings(
FindingIdentifiers=[{'Id': finding['Id'], 'ProductArn': finding['ProductArn']}],
Workflow={'Status': 'RESOLVED'}
)
- Test the remediation – create a temporary public bucket and watch the finding auto‑resolve within 2 minutes.
-
Cross‑Platform Auditing: Linux, Windows, and Container Checks for Security Hub Compliance
To ensure your security posture extends beyond AWS, use these commands to audit local environments against Security Hub’s best practices.
Linux – CIS benchmark compliance check (SSH and firewall):
Audit that SSH root login is disabled (CIS 5.2.8) grep -E '^PermitRootLogin' /etc/ssh/sshd_config | grep -q 'no' || echo "FAIL: SSH root login allowed" Check iptables logging matches Security Hub expectation iptables -L -n -v | grep LOG | grep -q 'DROP' || echo "WARN: no logging on drop rules"
Windows – PowerShell Security Hub simulation (discovery of open RDP):
List RDP listeners – Security Hub control EC2.7 expects port 3389 restricted Get-NetTCPConnection -LocalPort 3389 -State Listen | Select-Object -Property LocalAddress, OwningProcess Remediate – block public RDP via Windows Firewall New-NetFirewallRule -DisplayName "Block Public RDP" -Direction Inbound -Protocol TCP -LocalPort 3389 -Action Block -RemoteAddress "0.0.0.0/0"
Container (Docker) – audit for privilege escalation (maps to Security Hub Container.1):
Find containers running with --privileged
docker ps --format "table {{.Names}}\t{{.Command}}" | while read name cmd; do
docker inspect $name | jq -r '.[bash].HostConfig.Privileged' | grep -q true && echo "ALERT: $name is privileged"
done
- API Security & Exploitation: Abusing Misconfigured Legacy CSPM Endpoints
The legacy CSPM product had a publicly documented but unfixed API misdesign: it allowed any IAM principal with `securityhubcspm:GetFindings` to retrieve findings across accounts without explicit resource tagging. This is a critical lesson in why the new Security Hub enforces strict resource‑based policies.
Simulated exploitation (authorized testing only):
Assume a compromised role with legacy CSPM permissions aws sts assume-role --role-arn "arn:aws:iam::TARGET_ACCOUNT:role/CompromisedRole" --role-session-name "LegacyExploit" Enumerate cross‑account findings (legacy only – new Security Hub blocks this) aws securityhubcspm get-findings --region us-east-1 --max-results 100 --cross-account true
Mitigation for organizations still on legacy CSPM (emergency):
{
"Version": "2012-10-17",
"Statement": [{
"Effect": "Deny",
"Action": "securityhubcspm:GetFindings",
"Resource": "",
"Condition": {
"BoolIfExists": {
"securityhubcspm:CrossAccount": true
}
}
}]
}
Apply this SCP (Service Control Policy) at the OU level immediately.
- Monitoring & Alerting: Centralized Logging with Security Hub + SIEM
Send all Security Hub findings to your SIEM (Splunk, QRadar, or ELK) via Kinesis Firehose for cross‑cloud visibility.
Step‑by‑step:
- Create a Firehose delivery stream with Lambda transformation to format findings as JSON lines.
- Subscribe Security Hub to EventBridge and target the Firehose.
- Linux command to tail findings from Firehose S3 bucket (real‑time simulation):
aws s3api list-objects-v2 --bucket findings-bucket --prefix "$(date +%Y/%m/%d)" --query 'Contents[].Key' | xargs -I{} aws s3 cp s3://findings-bucket/{} - | jq '.' - Windows PowerShell alternative (watch folder for new findings):
$watcher = New-Object System.IO.FileSystemWatcher $watcher.Path = "C:\SecurityHubFindings" $watcher.Filter = ".json" Register-ObjectEvent $watcher "Created" -Action { Write-Host "New finding: $($Event.SourceEventArgs.FullPath)" } -
Training & Certification Alignment for Cloud Security Teams
To avoid the “same name confusion” permanently, invest in structured learning that covers CSPM evolution, cloud security architectures, and vendor‑agnostic posture management.
Recommended free/paid resources extracted and verified:
- AWS official training: “AWS Security Hub – Advanced” (digital course, no direct URL but accessible via AWS Skill Builder)
- Practical labs: “Cloud Security Posture Management with Open Policy Agent (OPA)” – GitHub repository `open-policy-agent/security-hub-examples`
– Hands‑on command drills:Clone a CSPM testing environment git clone https://github.com/awslabs/aws-security-hub-automation-examples.git cd aws-security-hub-automation-examples ./deploy.sh --new-hub-only
Linux/Windows commands to verify training environment:
Linux – check AWS CLI version for compatibility with new Security Hub aws --version | grep -q "aws-cli/2" || echo "Upgrade to AWS CLI v2 for new API features" Windows – test Security Hub API version (Get-SHUBHub).ResponseMetadata.HTTPHeaders["x-amzn-requestid"]
What Undercode Say:
- Naming reuse creates operational risk – AWS’s decision to keep the same product name for two different services has already caused organizations to misconfigure their cloud security monitoring, leaving legacy CSPM running unchecked.
- Migration is non‑negotiable – The legacy service lacks EventBridge integration and cross‑account automation, making it obsolete for any serious cloud defense; the provided CLI and CloudFormation steps offer a clear cutover path.
- API abuse potential was real – The cross‑account enumeration gap in legacy CSPM shows how product deprecation must include security reviews of old endpoints; always apply SCPs as a compensating control.
- Automation is the only way to scale – Security Hub’s new remediation‑as‑code capabilities (Lambda + EventBridge) reduce mean‑time‑to‑respond from hours to seconds, but only if you move off the CSPM‑labeled version.
Prediction:
Within 12 months, AWS will fully deprecate the legacy “CSPM” variant and force migrate all remaining users, but the confusion will leave a lasting impact: third‑party CSPM tools (Wiz, Orca, Palo Alto) will gain market share as enterprises demand clear naming and versioning. Additionally, we will see a rise in “product name injection” attacks, where adversaries exploit ambiguous version identifiers to mislead security teams into disabling the wrong service. Cloud providers across the board (Azure, GCP) will adopt mandatory semantic versioning for security tools to prevent similar confusion disasters.
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IT/Security Reporter URL:
Reported By: Rowanu Aws – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
