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Prowler has some checks that analyse pentesting risks (Secrets, Internet Exposed, AuthN, AuthZ, and more).

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Detect Secrets

Prowler uses detect-secrets library to search for any secrets that are stores in plaintext within your environment. The actual checks that have this functionality are the following:
  • autoscaling_find_secrets_ec2_launch_configuration
  • awslambda_function_no_secrets_in_code
  • awslambda_function_no_secrets_in_variables
  • cloudformation_stack_outputs_find_secrets
  • ec2_instance_secrets_user_data
  • ec2_launch_template_no_secrets
  • ecs_task_definitions_no_environment_secrets
  • ssm_document_secrets
To execute detect-secrets related checks, you can run the following command: 
prowler <provider> --categories secrets

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Internet Exposed Resources

Several checks analyse resources that are exposed to the Internet, these are:
  1. apigateway_restapi_public
  • appstream_fleet_default_internet_access_disabled
  • awslambda_function_not_publicly_accessible
  • ec2_ami_public
  • ec2_ebs_public_snapshot
  • ec2_instance_internet_facing_with_instance_profile
  • ec2_instance_port_X_exposed_to_internet (where X is the port number)
  • ec2_instance_public_ip
  • ec2_networkacl_allow_ingress_any_port
  • ec2_securitygroup_allow_wide_open_public_ipv4
  • ec2_securitygroup_allow_ingress_from_internet_to_any_port
  • ecr_repositories_not_publicly_accessible
  • eks_control_plane_endpoint_access_restricted
  • eks_endpoints_not_publicly_accessible
  • eks_control_plane_endpoint_access_restricted
  • eks_endpoints_not_publicly_accessible
  • elbv2_internet_facing
  • kms_key_not_publicly_accessible
  • opensearch_service_domains_not_publicly_accessible
  • rds_instance_no_public_access
  • rds_snapshots_public_access
  • s3_bucket_policy_public_write_access
  • s3_bucket_public_access
  • sagemaker_notebook_instance_without_direct_internet_access_configured
  • sns_topics_not_publicly_accessible
  • sqs_queues_not_publicly_accessible
  • network_public_ip_shodan
To execute Internet-exposed related checks, you can run the following command: 
prowler <provider> --categories internet-exposed

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Shodan

Prowler allows you check if any public IPs in your Cloud environments are exposed in Shodan with the -N/--shodan <shodan_api_key> option: For example, you can check if any of your AWS Elastic Compute Cloud (EC2) instances has an elastic IP exposed in Shodan: 
prowler aws -N/--shodan <shodan_api_key> -c ec2_elastic_ip_shodan
Also, you can check if any of your Azure Subscription has an public IP exposed in Shodan: 
prowler azure -N/--shodan <shodan_api_key> -c network_public_ip_shodan
And finally, you can check if any of your GCP projects has an public IP address exposed in Shodan: 
prowler gcp -N/--shodan <shodan_api_key> -c compute_public_address_shodan
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