Garrison Agent - AWS Inspector

This is a part of the Garrison security project. This agent provides mirroring of the AWS Inspector alerts and other basic checks.

Checks Provided

Function Name	Description
check_findings	Retrieves all findings from Inspector.

Installation & Example

Docker Hub - https://hub.docker.com/r/forward3d/garrison-agent-aws-inspector/

docker pull forward3d/garrison-agent-aws-inspector
docker run --rm -e "GARRISON_URL=https://garrison.internal.acme.com" forward3d/garrison-agent-aws-inspector check_findings
docker run --rm -e "GARRISON_URL=https://garrison.internal.acme.com" -e "GARRISON_AWS_REGIONS=eu-west-1,us-west-2" forward3d/garrison-agent-aws-inspector check_findings

Agent Specific Configuration

These are additional specific configuration options for this agent. Global agent configurations still apply.

Environmental Variable	Default	Expects
GARRISON_AWS_REGIONS	all [1]	Comma Separated Strings eg. eu-west-1,us-west-2
GARRISON_AWS_INSPECTOR_RULES_PACKAGE_NAMES	all [2]	Comma Separated Strings eg. Common Vulnerabilities and Exposures,Security Best Practices
GARRISON_AWS_INSPECTOR_THRESHOLD	undefined,informational,low,medium,high	Comma Separated Strings eg. medium,high
GARRISON_AWS_INSPECTOR_EXCLUDED_CIS_AMAZON_LINUX		Comma Separated Strings of the Rule IDs you want to exclude eg. 3.6,1.2.1.6
GARRISON_AWS_INSPECTOR_EXCLUDED_CIS_AMAZON_LINUX_2		Comma Separated Strings of the Rule IDs you want to exclude eg. 3.6,1.2.1.6
GARRISON_AWS_INSPECTOR_EXCLUDED_CIS_CENTOS_6		Comma Separated Strings of the Rule IDs you want to exclude eg. 3.6,1.2.1.6
GARRISON_AWS_INSPECTOR_EXCLUDED_CIS_CENTOS_7		Comma Separated Strings of the Rule IDs you want to exclude eg. 3.6,1.2.1.6
GARRISON_AWS_INSPECTOR_EXCLUDED_CIS_UBUNTU_TRUSTY		Comma Separated Strings of the Rule IDs you want to exclude eg. 3.6,1.2.1.6
GARRISON_AWS_INSPECTOR_EXCLUDED_CIS_UBUNTU_XENIAL		Comma Separated Strings of the Rule IDs you want to exclude eg. 3.6,1.2.1.6

1. AWS Regions as returned by the AWS SDK at runtime for regions where Inspector service is available.
2. All Rules Packages included by the AWS SDK at runtime for the region. If you want to be specific, use the names as described in the AWS Documentation.

AWS Authentication

As this requires access to the AWS API you will need this IAM policy as a minimum for it to operate correctly.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Action": [
                "inspector:ListRulesPackages",
                "inspector:DescribeRulesPackages",
                "inspector:ListAssessmentRuns",
                "inspector:DescribeAssessmentRuns",
                "inspector:ListFindings",
                "inspector:DescribeFindings"
            ],
            "Resource": "*",
            "Effect": "Allow"
        }
    ]
}

We recommend using EC2/ECS Task roles so that you don't need to send credentials into the container, however if you can't use those or want to send in specific Access Keys and Secret keys, please see the AWS Documentation as to how you do that.