Ensure NAT gateways are highly available
NAT gateways should be deployed in multiple Availability Zones to ensure high availability for outbound internet access.
Security Impact
Single NAT gateway creates a single point of failure for all outbound internet traffic from private subnets.
How to Remediate
Create NAT gateways in each AZ and update route tables for private subnets to use the local NAT gateway.
Affected Resources
Compliance Frameworks
How TigerGate Helps
TigerGate continuously monitors your AWS environment to detect and alert on this misconfiguration. Here's what our platform does for this specific check:
- Continuous Scanning
Automatically scans all Virtual Private Cloud (VPC) resources across your AWS accounts every hour
- Instant Alerts
Get notified via Slack, email, or webhooks when this misconfiguration is detected
- One-Click Remediation
Fix this issue directly from the TigerGate dashboard with our guided remediation
- Compliance Evidence
Automatically collect audit evidence for SOC 2 compliance
- Drift Detection
Get alerted if this configuration drifts back to an insecure state after remediation
Check Details
- Check ID
- aws-vpc-12
- Service
- Virtual Private Cloud (VPC)
- Category
- High Availability
- Severity
- MEDIUM
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