AWSQuickSetupEnableDHMCExecutionPolicy

Last Modified

Oct 27, 2026

October 27, 2026 at 04:03 PM UTC

Version

Total Versions

Created

Oct 27, 2026

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Risk

Medium

The same capabilities in a scoped form, resource policy writes, reads across all data, or full access to a whole service. Read from this policy document alone: trust policies, boundaries and SCPs in your account still decide what actually succeeds. How this is assessed

Medium
Can grant itself more permissions
Grants the actions of 1 documented escalation path, but only on named resources or under a condition. Review that scope before trusting it.
- iam-009iam:AttachRolePolicyscoped
  - iam:AttachRolePolicy: condition iam:PolicyARN, on arn:aws:iam::*:role/AWS-QuickSetup-SSM-DefaultEC2MgmtRole-*
Use with caution: Check which roles, users or policies fall inside the scope shown above. Within it the escalation works as documented, so keep privileged principals out of it.

Policy Document

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63{
  "PolicyVersion": {
    "Document": {
      "Version": "2012-10-17",
      "Statement": [
        {
          "Effect": "Allow",
          "Action": [
            "iam:CreateRole",
            "iam:GetRole"
          ],
          "Resource": "arn:aws:iam::*:role/AWS-QuickSetup-SSM-DefaultEC2MgmtRole-*"
        },
        {
          "Effect": "Allow",
          "Action": "iam:PassRole",
          "Resource": "arn:aws:iam::*:role/AWS-QuickSetup-SSM-DefaultEC2MgmtRole-*",
          "Condition": {
            "StringEquals": {
              "iam:PassedToService": "ssm.amazonaws.com"
            }
          }
        },
        {
          "Effect": "Allow",
          "Action": [
            "iam:AttachRolePolicy"
          ],
          "Resource": "arn:aws:iam::*:role/AWS-QuickSetup-SSM-DefaultEC2MgmtRole-*",
          "Condition": {
            "ArnEquals": {
              "iam:PolicyARN": "arn:aws:iam::aws:policy/AmazonSSMManagedEC2InstanceDefaultPolicy"
            }
          }
        },
        {
          "Effect": "Allow",
          "Action": [
            "ssm:GetServiceSetting",
            "ssm:UpdateServiceSetting"
          ],
          "Resource": "arn:aws:ssm:*:*:servicesetting/ssm/managed-instance/default-ec2-instance-management-role"
        },
        {
          "Effect": "Allow",
          "Action": "ssm:GetCalendarState",
          "Resource": "arn:aws:ssm:*:*:document/*",
          "Condition": {
            "StringLike": {
              "aws:userid": "*:SystemsManager-Automation-ChangeCalendar-Check"
            },
            "StringEquals": {
              "ssm:DocumentType": "ChangeCalendar"
            }
          }
        }
      ]
    },
    "VersionId": "v2",
    "IsDefaultVersion": true,
    "CreateDate": "2026-10-27T15:57:09+00:00"
  }
}