AWSDataSyncFullAccess

Last Modified

Mar 12, 2026

March 12, 2026 at 09:25 PM UTC

Version

v16

Total Versions

Created

Feb 12, 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 rewrite resource policies and sharing
Grants 1 permissions management action across 1 service (ec2) on any resource, enough to share resources outside the account.
ec2:createnetworkinterfacepermission
Use with caution: Turn on IAM Access Analyzer external access findings, and keep account-level guards like S3 Block Public Access enabled.
Medium
Full datasync access on every resource
Uses datasync:* with Resource "*" and no condition, so every action AWS adds to that service later is granted too.
datasync:*
Use with caution: The grant grows every time the service does. For long-lived access, prefer a policy that lists the actions you actually need.

Policy Document

View on GitHub

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108{
  "PolicyVersion": {
    "Document": {
      "Version": "2012-10-17",
      "Statement": [
        {
          "Sid": "DataSyncFullAccessPermissions",
          "Effect": "Allow",
          "Action": [
            "datasync:*",
            "ec2:CreateNetworkInterface",
            "ec2:CreateNetworkInterfacePermission",
            "ec2:DeleteNetworkInterface",
            "ec2:DescribeNetworkInterfaces",
            "ec2:DescribeRegions",
            "ec2:DescribeSecurityGroups",
            "ec2:DescribeSubnets",
            "ec2:DescribeVpcEndpoints",
            "ec2:ModifyNetworkInterfaceAttribute",
            "fsx:DescribeFileSystems",
            "fsx:DescribeStorageVirtualMachines",
            "elasticfilesystem:DescribeAccessPoints",
            "elasticfilesystem:DescribeFileSystems",
            "elasticfilesystem:DescribeMountTargets",
            "iam:GetRole",
            "iam:ListRoles",
            "logs:CreateLogGroup",
            "logs:DescribeLogGroups",
            "logs:DescribeResourcePolicies",
            "outposts:ListOutposts",
            "s3:GetBucketLocation",
            "s3:ListAllMyBuckets",
            "s3:ListBucket",
            "s3:ListBucketVersions",
            "s3-outposts:ListAccessPoints",
            "s3-outposts:ListRegionalBuckets",
            "secretsmanager:ListSecrets",
            "kms:ListAliases",
            "kms:DescribeKey"
          ],
          "Resource": "*"
        },
        {
          "Sid": "DataSyncPassRolePermissions",
          "Effect": "Allow",
          "Action": [
            "iam:PassRole"
          ],
          "Resource": "*",
          "Condition": {
            "StringEquals": {
              "iam:PassedToService": [
                "datasync.amazonaws.com"
              ]
            }
          }
        },
        {
          "Sid": "DataSyncCreateSLRPermissions",
          "Effect": "Allow",
          "Action": "iam:CreateServiceLinkedRole",
          "Resource": "arn:aws:iam::*:role/aws-service-role/datasync.amazonaws.com/AWSServiceRoleForDataSync",
          "Condition": {
            "StringEquals": {
              "iam:AWSServiceName": "datasync.amazonaws.com"
            }
          }
        },
        {
          "Sid": "DataSyncSecretsManagerCreateAccess",
          "Effect": "Allow",
          "Action": [
            "secretsmanager:CreateSecret"
          ],
          "Resource": [
            "arn:*:secretsmanager:*:*:secret:aws-datasync!*"
          ],
          "Condition": {
            "StringEquals": {
              "aws:ResourceAccount": "${aws:PrincipalAccount}"
            }
          }
        },
        {
          "Sid": "DataSyncSecretsManagerAccess",
          "Effect": "Allow",
          "Action": [
            "secretsmanager:DeleteSecret",
            "secretsmanager:UpdateSecret",
            "secretsmanager:PutSecretValue"
          ],
          "Resource": [
            "arn:*:secretsmanager:*:*:secret:aws-datasync!*"
          ],
          "Condition": {
            "StringEquals": {
              "secretsmanager:ResourceTag/aws:secretsmanager:owningService": "aws-datasync",
              "aws:ResourceAccount": "${aws:PrincipalAccount}"
            }
          }
        }
      ]
    },
    "VersionId": "v16",
    "IsDefaultVersion": true,
    "CreateDate": "2026-02-12T18:03:11+00:00"
  }
}