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Infrastructure as Code Security

Infrastructure as Code Security

Infrastructure as Code Security

Infrastructure as Code Security

Infrastructure as Code Security

Infrastructure as Code Security

Infrastructure as Code Security

Infrastructure as Code Security

Infrastructure as Code Security

Infrastructure as Code Security

Infrastructure as Code Security

Introduction

Infrastructure as Code (IaC) enables automated, repeatable infrastructure provisioning. However, IaC also codifies security misconfigurations — a mistake in a Terraform file can propagate to thousands of resources. Securing IaC means scanning for issues before deployment, enforcing policy as code, and preventing configuration drift.

Terraform Security Scanning

Scan Terraform configurations for security misconfigurations before applying them.

checkov

Basic scan

checkov -d terraform/environments/production/

Scan with specific framework

checkov -d . --framework terraform --skip-framework dockerfile

Output in multiple formats

checkov -d . -o json | jq '.results.failed_checks[] | {resource: .resource, check: .check_id, severity: .severity}'

Run in CI/CD with threshold

checkov -d . --soft-fail-on MEDIUM # Fail only on HIGH/CRITICAL

Custom Checkov policy for Terraform

from checkov.terraform.checks.resource.base_resource_check import BaseResourceCheck

from checkov.common.models.enums import CheckResult

class RDSEncryptionCheck(BaseResourceCheck):

def init(self):

name = "Ensure RDS instances have encryption enabled"

id = "CKV_CUSTOM_002"

supported_resources = ['aws_db_instance']

super().init(name=name, id=id, supported_resources=supported_resources)

def scan_resource_conf(self, conf):

Check if storage_encrypted is set to true

if conf.get('storage_encrypted') == [True]:

return CheckResult.PASSED

return CheckResult.FAILED

check = RDSEncryptionCheck()

tfsec

Basic scan

tfsec terraform/

Scan with custom configuration

tfsec . --config-file tfsec.yaml

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