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Performing AWS Account Enumeration with ScoutSuite

Overview

ScoutSuite is an open-source multi-cloud security auditing tool developed by NCC Group that enables comprehensive security posture assessment of AWS environments. It queries AWS APIs to gather configuration data across all services, stores results locally, and generates interactive HTML reports highlighting high-risk areas. ScoutSuite is agentless and works by analyzing how cloud resources are configured, accessed, and monitored.

When to Use

When conducting security assessments that involve performing aws account enumeration with scout suite
When following incident response procedures for related security events
When performing scheduled security testing or auditing activities
When validating security controls through hands-on testing

Prerequisites

Python 3.6+ installed
AWS CLI configured with appropriate IAM credentials
Read-only IAM permissions across target AWS services (SecurityAudit managed policy recommended)
pip package manager for ScoutSuite installation
Network access to AWS API endpoints

Installation and Setup

Install ScoutSuite

pip install scoutsuite

Verify installation

scout --version

Configure AWS credentials

aws configure
# Or use environment variables:
export AWS_ACCESS_KEY_ID=<your-key>
export AWS_SECRET_ACCESS_KEY=<your-secret>
export AWS_DEFAULT_REGION=us-east-1

Required IAM Policy

Attach the AWS managed policy SecurityAudit and ViewOnlyAccess to the IAM user or role running ScoutSuite. For comprehensive scanning, a custom policy may be needed:

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "acm:Describe*",
        "acm:List*",
        "cloudformation:Describe*",
        "cloudformation:Get*",
        "cloudformation:List*",
        "cloudtrail:Describe*",
        "cloudtrail:Get*",
        "cloudtrail:List*",
        "cloudwatch:Describe*",
        "cloudwatch:Get*",
        "cloudwatch:List*",
        "config:Describe*",
        "config:Get*",
        "config:List*",
        "dynamodb:Describe*",
        "dynamodb:List*",
        "ec2:Describe*",
        "ec2:Get*",
        "elasticloadbalancing:Describe*",
        "iam:Generate*",
        "iam:Get*",
        "iam:List*",
        "iam:Simulate*",
        "kms:Describe*",
        "kms:Get*",
        "kms:List*",
        "lambda:Get*",
        "lambda:List*",
        "logs:Describe*",
        "logs:Get*",
        "rds:Describe*",
        "rds:List*",
        "redshift:Describe*",
        "route53:Get*",
        "route53:List*",
        "s3:Get*",
        "s3:List*",
        "ses:Get*",
        "ses:List*",
        "sns:Get*",
        "sns:List*",
        "sqs:Get*",
        "sqs:List*",
        "ssm:Describe*",
        "ssm:Get*",
        "ssm:List*"
      ],
      "Resource": "*"
    }
  ]
}

Running ScoutSuite

Full AWS scan

scout aws

Scan specific services only

scout aws --services s3 iam ec2 rds

Scan specific regions

scout aws --regions us-east-1 us-west-2 eu-west-1

Use an assumed role for cross-account scanning

scout aws --profile target-account-profile

Exclude specific services from scan

scout aws --skip iam ec2

Specify output directory

scout aws --report-dir /tmp/scoutsuite-reports/

Report Analysis

ScoutSuite generates an interactive HTML report stored locally. The report includes:

Dashboard: Overview of findings by severity (danger, warning, good)
Service-level findings: Grouped by AWS service (IAM, S3, EC2, RDS, etc.)
Rule-based checks: Each finding maps to a security best practice rule
Resource inventory: Complete listing of enumerated resources

Key areas to review in the report

Service	Critical Checks
IAM	Root account MFA, password policy, unused credentials, overprivileged policies
S3	Public buckets, unencrypted buckets, versioning disabled, logging disabled
EC2	Security groups with 0.0.0.0/0, unencrypted EBS volumes, public IPs
RDS	Public accessibility, unencrypted databases, backup retention
CloudTrail	Logging disabled, log file validation, multi-region disabled
Lambda	Public access, environment variable secrets, VPC configuration

Interpreting Findings

Severity Levels

Danger (Red): Critical security issues requiring immediate remediation (e.g., S3 buckets with public write access)
Warning (Orange): Moderate risk findings that should be addressed (e.g., unused IAM access keys)
Good (Green): Security best practices that are properly configured

Common High-Risk Findings

IAM root account without MFA: The AWS root account has no multi-factor authentication enabled
S3 bucket policy allows public access: Bucket policies with Principal set to "*"
Security group allows unrestricted SSH: Inbound rule allowing 0.0.0.0/0 on port 22
CloudTrail not enabled in all regions: Audit logging gaps allow unmonitored API activity
RDS instance publicly accessible: Database endpoints reachable from the internet

Remediation Workflow

Run ScoutSuite scan to establish baseline
Export findings and prioritize by severity
Create remediation tickets for danger and warning findings
Implement fixes (update security groups, enable encryption, restrict access)
Re-run ScoutSuite to verify remediation
Schedule regular scans (weekly or after infrastructure changes)

Integration with CI/CD

# Run ScoutSuite in CI/CD pipeline and fail on danger findings
scout aws --services s3 iam ec2 --no-browser --report-dir ./scout-report/

# Parse results programmatically
python -c "
import json
with open('./scout-report/scoutsuite-results/scoutsuite_results.json') as f:
    results = json.load(f)
    for service in results.get('services', {}):
        findings = results['services'][service].get('findings', {})
        for finding_id, finding in findings.items():
            if finding.get('flagged_items', 0) > 0 and finding.get('level') == 'danger':
                print(f'CRITICAL: {finding_id} - {finding.get(\"description\", \"\")}')
"

Multi-Cloud Capability

ScoutSuite supports multiple cloud providers using the same framework:

# Azure
scout azure --cli

# GCP
scout gcp --user-account

# AWS with specific profile
scout aws --profile production

References

ScoutSuite GitHub Repository: https://github.com/nccgroup/ScoutSuite
AWS Security Audit Checklist
CIS AWS Foundations Benchmark
AWS Well-Architected Security Pillar

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