AWSSSOReadOnly

Last Modified

Mar 12, 2026

March 12, 2026 at 09:26 PM UTC

Version

v12

Total Versions

Created

Feb 12, 2026

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Risk

no risk signal

Read from this policy document alone: trust policies, boundaries and SCPs in your account still decide what actually succeeds. How this is assessed

IAM Access Analyzer (1)

Suggestion / EQUIVALENT_TO_NULL_FALSE
We recommend replacing the key kms:EncryptionContext:aws:sso:instance-arn in the condition block of StringLike with {kms:EncryptionContext:aws:sso:instance-arn: false} to ensure better enforcement of the condition. AWS docs

Policy Document

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61{
  "PolicyVersion": {
    "Document": {
      "Version": "2012-10-17",
      "Statement": [
        {
          "Sid": "AWSSSOReadOnly",
          "Effect": "Allow",
          "Action": [
            "ds:DescribeDirectories",
            "ds:DescribeTrusts",
            "iam:ListPolicies",
            "organizations:DescribeOrganization",
            "organizations:DescribeAccount",
            "organizations:ListParents",
            "organizations:ListChildren",
            "organizations:ListAccounts",
            "organizations:ListRoots",
            "organizations:ListAccountsForParent",
            "organizations:ListOrganizationalUnitsForParent",
            "organizations:ListDelegatedAdministrators",
            "sso:Describe*",
            "sso:Get*",
            "sso:List*",
            "sso:Search*",
            "sso-directory:DescribeDirectory",
            "access-analyzer:ValidatePolicy",
            "signin:ListTrustedIdentityPropagationApplicationsForConsole"
          ],
          "Resource": "*"
        },
        {
          "Sid": "AllowKMSKeyUseViaAWSIAMIdentityCenterService",
          "Effect": "Allow",
          "Action": [
            "kms:Decrypt"
          ],
          "Resource": "*",
          "Condition": {
            "StringLike": {
              "kms:ViaService": "sso.*.amazonaws.com",
              "kms:EncryptionContext:aws:sso:instance-arn": "*"
            }
          }
        },
        {
          "Sid": "AllowKMSKeyDiscovery",
          "Effect": "Allow",
          "Action": [
            "kms:ListAliases",
            "kms:DescribeKey"
          ],
          "Resource": "*"
        }
      ]
    },
    "VersionId": "v12",
    "IsDefaultVersion": true,
    "CreateDate": "2026-02-12T17:59:03+00:00"
  }
}