AmazonMCSFullAccess

Summary

Provides full access to Amazon Managed Apache Cassandra Service, according to the reference page description.

Permissions imported from the AWS Managed Policy Reference Guide; other sections reviewed against the listed AWS sources.

Identity

ARN

arn:aws:iam::aws:policy/AmazonMCSFullAccessCopy ARN

Default version

v2

Created

2019-12-03

Last edited

2020-04-17

Services

application-autoscaling, cassandra, cloudwatch, iam

Control-plane actions (33)

By access level: 1 List, 8 Read, 4 Tagging, 20 Write.

Data-plane actions (2)

By access level: 2 Read.

Excluded and conditional actions

No patterns are excluded by NotAction or Deny statements.

Resource scope and attachment

Resource scope across granted actions: mixed.

Can be attached: Yes, to users, groups and roles.

Why this tier

• Grants at least 80% of the write and permissions-management actions of: application-autoscaling (6 of 6), cassandra (11 of 11).
• 7 granted write or permissions-management actions have no data-plane classification from AWS, so the data-plane rule cannot assess them.

Guidance

Related policies

Same service

• AmazonAppStreamFullAccess
• AmazonDynamoDBFullAccess
• AmazonDynamoDBFullAccess_v2
• AmazonECS_FullAccess
• AmazonECSInfrastructureRoleforExpressGatewayServices
• AmazonElasticMapReduceRole
• AmazonEMRServicePolicy_v2
• AmazonKeyspacesFullAccess

Same domain

• AmazonAuroraDSQLConsoleFullAccess
• AmazonAuroraDSQLFullAccess
• AmazonAuroraDSQLReadOnlyAccess
• AmazonDocDBConsoleFullAccess
• AmazonDocDBElasticFullAccess
• AmazonDocDBElasticReadOnlyAccess
• AmazonDocDBFullAccess
• AmazonDocDBReadOnlyAccess

Frequently asked questions

When should I attach AmazonMCSFullAccess?

The reference page describes it as full access to Amazon Managed Apache Cassandra Service. Attach it to users, groups or roles that need that scope.

What does AmazonMCSFullAccess grant?

It allows cassandra:* on all resources, Application Auto Scaling actions to create, view and delete scaling policies and scheduled actions, CloudWatch alarm actions (DeleteAlarms, DescribeAlarms, PutMetricAlarm), and creating the AWSServiceRoleForApplicationAutoScaling_CassandraTable service-linked role.

What are the security risks of AmazonMCSFullAccess?

cassandra:* allows every Cassandra action on all resources. You cannot change the permissions in an AWS managed policy, and AWS updates to the policy affect every identity it is attached to. The IAM User Guide says AWS managed policies don't grant least privilege permissions.

Policy JSON

Download policy.json

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "application-autoscaling:DeleteScalingPolicy",
        "application-autoscaling:DeregisterScalableTarget",
        "application-autoscaling:DescribeScalableTargets",
        "application-autoscaling:DescribeScalingActivities",
        "application-autoscaling:DescribeScalingPolicies",
        "application-autoscaling:PutScalingPolicy",
        "application-autoscaling:RegisterScalableTarget",
        "application-autoscaling:PutScheduledAction",
        "application-autoscaling:DeleteScheduledAction",
        "application-autoscaling:DescribeScheduledActions"
      ],
      "Resource": "*"
    },
    {
      "Effect": "Allow",
      "Action": [
        "cassandra:*"
      ],
      "Resource": "*"
    },
    {
      "Effect": "Allow",
      "Action": [
        "cloudwatch:DeleteAlarms",
        "cloudwatch:DescribeAlarms",
        "cloudwatch:PutMetricAlarm"
      ],
      "Resource": "*"
    },
    {
      "Effect": "Allow",
      "Action": "iam:CreateServiceLinkedRole",
      "Resource": "arn:aws:iam::*:role/aws-service-role/cassandra.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_CassandraTable",
      "Condition": {
        "StringLike": {
          "iam:AWSServiceName": "cassandra.application-autoscaling.amazonaws.com"
        }
      }
    }
  ]
}

Version history

Current version v2, edited by AWS on 2020-04-17. Version history is recorded from 2026-11-11. Earlier versions are in the IAM console under Policy versions.

Attach snippets

aws iam attach-role-policy --role-name ROLE_NAME --policy-arn arn:aws:iam::aws:policy/AmazonMCSFullAccess
aws iam attach-user-policy --user-name USER_NAME --policy-arn arn:aws:iam::aws:policy/AmazonMCSFullAccess
aws iam attach-group-policy --group-name GROUP_NAME --policy-arn arn:aws:iam::aws:policy/AmazonMCSFullAccess

Resources:
  ExampleRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument: {}  # replace with your trust policy
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/AmazonMCSFullAccess

resource "aws_iam_role_policy_attachment" "amazonmcsfullaccess" {
  role       = aws_iam_role.example.name
  policy_arn = "arn:aws:iam::aws:policy/AmazonMCSFullAccess"
}

role.addManagedPolicy(
  iam.ManagedPolicy.fromAwsManagedPolicyName("AmazonMCSFullAccess"),
);

Sources

• AmazonMCSFullAccess (AWS Managed Policy Reference Guide) (retrieved 2026-11-13; supports summary, practicalScope, useCases, securityConsiderations, assignmentGuidance, faqs)
• AWS managed policies for job functions (IAM User Guide) (retrieved 2026-11-12; supports bestPractices, faqs)
• Managed policies and inline policies (IAM User Guide) (retrieved 2026-11-12; supports securityConsiderations, faqs)

• Official AWS reference for AmazonMCSFullAccess
• Report a data issue