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توضیحات

Utility to discover AWS CloudTrail events pushed into S3

ویژگی	مقدار
سیستم عامل	-
نام فایل	aws-cloudtrail-events-schema-0.0.6
نام	aws-cloudtrail-events-schema
نسخه کتابخانه	0.0.6
نگهدارنده	[]
ایمیل نگهدارنده	[]
نویسنده	Eamonn Faherty
ایمیل نویسنده	python-packages@designandsolve.co.uk
آدرس صفحه اصلی	https://github.com/eamonnfaherty/aws-cloudtrail-events-schema
آدرس اینترنتی	https://pypi.org/project/aws-cloudtrail-events-schema/
مجوز	-

## Background The AWS platform allows you to log API calls using [AWS CloudTrial](https://aws.amazon.com/cloudtrail). You can use tools like [AWS Config](https://aws.amazon.com/config/) and [CaptialOne's CloudCustodian](https://github.com/cloud-custodian/cloud-custodian) to create security controls that react to these events. ## The problem There is not much documentation on the structure of the events. ## What is this? The structure of the events from CloudTrail are similar to responses seen when using boto3. Boto3 is powered by the botocore library. The botocore library contains a data directory that describes the API calls (requests and responses). This library allows you to interact with the data directories of botocore to see the API request and responses. This is to help you write custom AWS Config rules and or CloudCustodian policies. ## Examples Running ```cloudtrail-schema``` with no arguements will list the services/sources: ```yaml Services: - acm - acm-pca - alexaforbusiness - amplify - apigateway - apigatewaymanagementapi - apigatewayv2 ``` Running ```cloudtrail-schema iam``` with a service will list the operations/events: ```yaml Operations: - AddClientIDToOpenIDConnectProvider - AddRoleToInstanceProfile - AddUserToGroup - AttachGroupPolicy - AttachRolePolicy - AttachUserPolicy - ChangePassword ``` Running with a service and event ```cloudtrail-schema iam.CreatePolicy.output``` give the following output: ``` Description ------ Creates a new managed policy for your AWS account. This operation creates a policy version with a version identifier of <code>v1</code> and sets v1 as the policy's default version. For more information about policy versions, see <a href="http://docs.aws.amazon.com/IAM/latest/UserGuide/policies-managed-versions.html">Versioning for Managed Policies</a> in the IAM User Guide. For more information about managed policies in general, see <a href="http://docs.aws.amazon.com/IAM/latest/UserGuide/policies-managed-vs-inline.html">Managed Policies and Inline Policies</a> in the IAM User Guide. Result ------ { "policy": { "policyName": { "type": "string", "max": 128, "min": 1, "pattern": "[\\w+=,.@-]+" }, "policyId": { "type": "string", "max": 128, "min": 16, "pattern": "[\\w]+" }, "arn": { "type": "string", "documentation": "The Amazon Resource Name (ARN). ARNs are unique identifiers for AWS resources. For more information about ARNs, go to <a href=\"http://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html\">Amazon Resource Names (ARNs) and AWS Service Namespaces</a> in the AWS General Reference. ", "max": 2048, "min": 20 }, "path": { "type": "string", "pattern": "((/[A-Za-z0-9\\.,\\+@=_-]+)*)/" }, "defaultVersionId": { "type": "string", "pattern": "v[1-9][0-9]*(\\.[A-Za-z0-9-]*)?" }, "attachmentCount": { "type": "integer" }, "permissionsBoundaryUsageCount": { "type": "integer" }, "isAttachable": { "type": "boolean" }, "description": { "type": "string", "max": 1000 }, "createDate": { "type": "timestamp" }, "updateDate": { "type": "timestamp" } } } ``` ### Writing a CloudCustodian policy When you view a event response using this tool you can translate it easily into a a CloudCustodian policy: ``` # cloudtrail-schema iam.CreatePolicy.output Description ------ Creates a new managed policy for your AWS account. This operation creates a policy version with a version identifier of <code>v1</code> and sets v1 as the policy's default version. For more information about policy versions, see <a href="http://docs.aws.amazon.com/IAM/latest/UserGuide/policies-managed-versions.html">Versioning for Managed Policies</a> in the IAM User Guide. For more information about managed policies in general, see <a href="http://docs.aws.amazon.com/IAM/latest/UserGuide/policies-managed-vs-inline.html">Managed Policies and Inline Policies</a> in the IAM User Guide. Result ------ { "policy": { "policyName": { "type": "string", "max": 128, "min": 1, "pattern": "[\\w+=,.@-]+" }, "policyId": { "type": "string", "max": 128, "min": 16, "pattern": "[\\w]+" }, "arn": { "type": "string", "documentation": "The Amazon Resource Name (ARN). ARNs are unique identifiers for AWS resources. For more information about ARNs, go to <a href=\"http://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html\">Amazon Resource Names (ARNs) and AWS Service Namespaces</a> in the AWS General Reference. ", "max": 2048, "min": 20 }, "path": { "type": "string", "pattern": "((/[A-Za-z0-9\\.,\\+@=_-]+)*)/" }, "defaultVersionId": { "type": "string", "pattern": "v[1-9][0-9]*(\\.[A-Za-z0-9-]*)?" }, "attachmentCount": { "type": "integer" }, "permissionsBoundaryUsageCount": { "type": "integer" }, "isAttachable": { "type": "boolean" }, "description": { "type": "string", "max": 1000 }, "createDate": { "type": "timestamp" }, "updateDate": { "type": "timestamp" } } } ``` You use the argument to decide the mode.events.source and mode.events.event: source: iam.amazonaws.com event: CreatePolicy Full example: ```yaml policies: - name: iam-has-allow-all-policy description: | Notify when a policy is created using allow all resource: iam-policy mode: type: cloudtrail events: - source: iam.amazonaws.com event: CreatePolicy ids: "responseElements.policy.policyId" ``` The json returned from the app can be used to write filters. The json returned is the same as the structure available from responseElements. You can write the following policy as an example: Running: ```cloudtrail-schema ec2.CreateVpcPeeringConnection.output``` results in ``` Description ------ Requests a VPC peering connection between two VPCs: a requester VPC that you own and an accepter VPC with which to create the connection. The accepter VPC can belong to another AWS account and can be in a different Region to the requester VPC. The requester VPC and accepter VPC cannot have overlapping CIDR blocks. <note> Limitations and rules apply to a VPC peering connection. For more information, see the <a href="http://docs.aws.amazon.com/AmazonVPC/latest/PeeringGuide/vpc-peering-basics.html#vpc-peering-limitations">limitations</a> section in the VPC Peering Guide. </note> The owner of the accepter VPC must accept the peering request to activate the peering connection. The VPC peering connection request expires after 7 days, after which it cannot be accepted or rejected. If you create a VPC peering connection request between VPCs with overlapping CIDR blocks, the VPC peering connection has a status of <code>failed</code>. Result ------ { "vpcPeeringConnection": { "accepterVpcInfo": { "cidrBlock": { "type": "string" }, "ipv6CidrBlockSet": { "type": "list", "member": { "shape": "Ipv6CidrBlock", "locationName": "item" } }, "cidrBlockSet": { "type": "list", "member": { "shape": "CidrBlock", "locationName": "item" } }, "ownerId": { "type": "string" }, "peeringOptions": { "allowDnsResolutionFromRemoteVpc": { "type": "boolean" }, "allowEgressFromLocalClassicLinkToRemoteVpc": { "type": "boolean" }, "allowEgressFromLocalVpcToRemoteClassicLink": { "type": "boolean" } }, "vpcId": { "type": "string" }, "region": { "type": "string" } }, "expirationTime": { "type": "timestamp" }, "requesterVpcInfo": { "cidrBlock": { "type": "string" }, "ipv6CidrBlockSet": { "type": "list", "member": { "shape": "Ipv6CidrBlock", "locationName": "item" } }, "cidrBlockSet": { "type": "list", "member": { "shape": "CidrBlock", "locationName": "item" } }, "ownerId": { "type": "string" }, "peeringOptions": { "allowDnsResolutionFromRemoteVpc": { "type": "boolean" }, "allowEgressFromLocalClassicLinkToRemoteVpc": { "type": "boolean" }, "allowEgressFromLocalVpcToRemoteClassicLink": { "type": "boolean" } }, "vpcId": { "type": "string" }, "region": { "type": "string" } }, "status": { "code": { "type": "string", "enum": [ "initiating-request", "pending-acceptance", "active", "deleted", "rejected", "failed", "expired", "provisioning", "deleting" ] }, "message": { "type": "string" } }, "tags": { "type": "list", "member": { "shape": "Tag", "locationName": "item" } }, "vpcPeeringConnectionId": { "type": "string" } } } ``` You can use this response to write a complex event filter. Everything from the detail.responseElements downwards is what was was returned from the app. ```yaml policies: - name: vpc-peering-cross-account-checker-real-time resource: peering-connection mode: type: cloudtrail events: - source: ec2.amazonaws.com event: CreateVpcPeeringConnection ids: 'responseElements.vpcPeeringConnection.vpcPeeringConnectionId' timeout: 90 memory: 256 role: arn:aws:iam::{account_id}:role/Cloud_Custodian_EC2_Lambda_Role description: | When a new peering connection is created the Accepter and Requester account numbers are compared and if they aren't both internally owned accounts then the cloud and security teams are notified to investigate and delete the peering connection. filters: - or: - type: event key: "detail.responseElements.vpcPeeringConnection.accepterVpcInfo.ownerId" op: not-in value_from: url: s3://s3bucketname/AccountNumbers.csv format: csv2dict - type: event key: "detail.responseElements.vpcPeeringConnection.requesterVpcInfo.ownerId" op: not-in value_from: url: s3://s3bucketname/AccountNumbers.csv format: csv2dict ```

نحوه نصب

نصب پکیج whl aws-cloudtrail-events-schema-0.0.6:

pip install aws-cloudtrail-events-schema-0.0.6.whl

نصب پکیج tar.gz aws-cloudtrail-events-schema-0.0.6:

pip install aws-cloudtrail-events-schema-0.0.6.tar.gz