AmazonSSMManagedInstanceCore

Summary

The policy for Amazon EC2 Role to enable AWS Systems Manager service core functionality.

Permissions imported from the AWS Managed Policy Reference Guide; other sections pending editorial review.

Identity

ARN

arn:aws:iam::aws:policy/AmazonSSMManagedInstanceCoreCopy ARN

Default version

v2

Created

2019-03-15

Last edited

2019-05-23

Services

ec2messages, ssm, ssmmessages

Control-plane actions (25)

By access level: 2 List, 10 Read, 13 Write.

Data-plane actions (0)

By access level: none.

This policy grants no actions in this plane.

Excluded and conditional actions

No patterns are excluded by NotAction or Deny statements.

Resource scope and attachment

Resource scope across granted actions: all-resources.

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

Why this tier

• Grants 13 write, tagging or permissions-management actions, short of full control of any service.
• Can read secret values or decrypt data. Reads are not a High privilege rule.

Guidance

Pending editorial review. The permission data on this page comes straight from AWS; this section will be filled in once a reviewed guide exists.

Related policies

Same service

• AIOpsOperatorAccess
• AmazonEC2ImageReferencesAccessPolicy
• AmazonEC2RoleforSSM
• AmazonEKSConnectorServiceRolePolicy
• AmazonEKSLocalOutpostClusterPolicy
• AmazonElasticFileSystemsUtils
• AmazonGuardDutyServiceRolePolicy
• AmazonInspector2ServiceRolePolicy

Same domain

• AccountAccessManagerServiceRolePolicy
• AIDevOpsAgentAccessPolicy
• AIDevOpsOrganizationsAccessPolicy
• AmazonCloudWatchEvidentlyServiceRolePolicy
• AmazonCodeCatalystSupportAccess
• AmazonDetectiveOrganizationsAccess
• AmazonDetectiveServiceLinkedRolePolicy
• AmazonDevOpsGuruOrganizationsAccess

Frequently asked questions

Pending editorial review. The permission data on this page comes straight from AWS; this section will be filled in once a reviewed guide exists.

Policy JSON

Download policy.json

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "ssm:DescribeAssociation",
        "ssm:GetDeployablePatchSnapshotForInstance",
        "ssm:GetDocument",
        "ssm:DescribeDocument",
        "ssm:GetManifest",
        "ssm:GetParameter",
        "ssm:GetParameters",
        "ssm:ListAssociations",
        "ssm:ListInstanceAssociations",
        "ssm:PutInventory",
        "ssm:PutComplianceItems",
        "ssm:PutConfigurePackageResult",
        "ssm:UpdateAssociationStatus",
        "ssm:UpdateInstanceAssociationStatus",
        "ssm:UpdateInstanceInformation"
      ],
      "Resource": "*"
    },
    {
      "Effect": "Allow",
      "Action": [
        "ssmmessages:CreateControlChannel",
        "ssmmessages:CreateDataChannel",
        "ssmmessages:OpenControlChannel",
        "ssmmessages:OpenDataChannel"
      ],
      "Resource": "*"
    },
    {
      "Effect": "Allow",
      "Action": [
        "ec2messages:AcknowledgeMessage",
        "ec2messages:DeleteMessage",
        "ec2messages:FailMessage",
        "ec2messages:GetEndpoint",
        "ec2messages:GetMessages",
        "ec2messages:SendReply"
      ],
      "Resource": "*"
    }
  ]
}

Version history

Current version v2, edited by AWS on 2019-05-23. 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/AmazonSSMManagedInstanceCore
aws iam attach-user-policy --user-name USER_NAME --policy-arn arn:aws:iam::aws:policy/AmazonSSMManagedInstanceCore
aws iam attach-group-policy --group-name GROUP_NAME --policy-arn arn:aws:iam::aws:policy/AmazonSSMManagedInstanceCore

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

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

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

Sources

Pending editorial review. No editorial sources are listed yet.

• Official AWS reference for AmazonSSMManagedInstanceCore
• Report a data issue