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IAM Policy Map

AWSSSOReadOnly

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Summary

Provides read only access to AWS SSO configurations. The IAM Identity Center User Guide says principals with this policy can view information in IAM Identity Center but cannot view IAM Identity Center users or groups directly and cannot make any updates, and that it includes AWS KMS permissions for instances that use customer managed keys.

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

Identity

ARN
arn:aws:iam::aws:policy/AWSSSOReadOnly
Default version
v12
Created
Last edited
Services
access-analyzer, ds, iam, kms, organizations, signin, sso, sso-directory

Control-plane actions (76)

By access level: 34 List, 41 Read, 1 Write.

Control-plane actions by service
ServiceGrantedAccess levels and limitsGranted by
Access Analyzer1 of 371 Read; 0 restricted, 0 conditionalaccess-analyzer:ValidatePolicy
Directory Service2 of 911 List, 1 Read; 0 restricted, 0 conditionalds:DescribeDirectories, ds:DescribeTrusts
IAM1 of 1901 List; 0 restricted, 0 conditionaliam:ListPolicies
KMS3 of 581 List, 1 Read, 1 Write; 1 restricted, 1 conditionalkms:Decrypt, kms:DescribeKey, kms:ListAliases
Organizations9 of 637 List, 2 Read; 0 restricted, 0 conditionalorganizations:DescribeAccount, organizations:DescribeOrganization, organizations:ListAccounts, organizations:ListAccountsForParent, organizations:ListChildren, organizations:ListDelegatedAdministrators, organizations:ListOrganizationalUnitsForParent, organizations:ListParents, organizations:ListRoots
Signin1 of 171 List; 0 restricted, 0 conditionalsignin:ListTrustedIdentityPropagationApplicationsForConsole
IAM Identity Center58 of 12623 List, 35 Read; 0 restricted, 0 conditionalsso:Describe*, sso:Get*, sso:List*, sso:Search*
IAM Identity Center directory1 of 571 Read; 0 restricted, 0 conditionalsso-directory:DescribeDirectory
Access Analyzer: 1 actions
  • access-analyzer:ValidatePolicy (Read)
Directory Service: 2 actions
  • ds:DescribeDirectories (List)
  • ds:DescribeTrusts (Read)
IAM: 1 actions
  • iam:ListPolicies (List)
KMS: 3 actions
  • kms:Decrypt (Write)
  • kms:DescribeKey (Read)
  • kms:ListAliases (List)
Organizations: 9 actions
  • organizations:DescribeAccount (Read)
  • organizations:DescribeOrganization (Read)
  • organizations:ListAccounts (List)
  • organizations:ListAccountsForParent (List)
  • organizations:ListChildren (List)
  • organizations:ListDelegatedAdministrators (List)
  • organizations:ListOrganizationalUnitsForParent (List)
  • organizations:ListParents (List)
  • organizations:ListRoots (List)
Signin: 1 actions
  • signin:ListTrustedIdentityPropagationApplicationsForConsole (List)
IAM Identity Center: 58 actions
  • sso:DescribeAccountAssignmentCreationStatus (Read)
  • sso:DescribeAccountAssignmentDeletionStatus (Read)
  • sso:DescribeApplication (Read)
  • sso:DescribeApplicationAssignment (Read)
  • sso:DescribeApplicationProvider (Read)
  • sso:DescribeInstance (Read)
  • sso:DescribeInstanceAccessControlAttributeConfiguration (Read)
  • sso:DescribePermissionSet (Read)
  • sso:DescribePermissionSetProvisioningStatus (Read)
  • sso:DescribeRegion (Read)
  • sso:DescribeRegisteredRegions (Read)
  • sso:DescribeTrustedTokenIssuer (Read)
  • sso:GetApplicationAccessScope (Read)
  • sso:GetApplicationAssignmentConfiguration (Read)
  • sso:GetApplicationAuthenticationMethod (Read)
  • sso:GetApplicationGrant (Read)
  • sso:GetApplicationInstance (Read)
  • sso:GetApplicationSessionConfiguration (Read)
  • sso:GetApplicationTemplate (Read)
  • sso:GetInlinePolicyForPermissionSet (Read)
  • sso:GetManagedApplicationInstance (Read)
  • sso:GetMfaDeviceManagementForDirectory (Read)
  • sso:GetPermissionSet (Read)
  • sso:GetPermissionsBoundaryForPermissionSet (Read)
  • sso:GetProfile (Read)
  • sso:GetSSOStatus (Read)
  • sso:GetSharedSsoConfiguration (Read)
  • sso:GetSsoConfiguration (Read)
  • sso:GetTrust (Read)
  • sso:ListAccountAssignmentCreationStatus (List)
  • sso:ListAccountAssignmentDeletionStatus (List)
  • sso:ListAccountAssignments (List)
  • sso:ListAccountAssignmentsForPrincipal (List)
  • sso:ListAccountsForProvisionedPermissionSet (List)
  • sso:ListApplicationAccessScopes (List)
  • sso:ListApplicationAssignments (List)
  • sso:ListApplicationAssignmentsForPrincipal (List)
  • sso:ListApplicationAuthenticationMethods (List)
  • sso:ListApplicationGrants (List)
  • sso:ListApplicationInstanceCertificates (Read)
  • sso:ListApplicationInstances (List)
  • sso:ListApplicationProviders (List)
  • sso:ListApplicationTemplates (List)
  • sso:ListApplications (List)
  • sso:ListCustomerManagedPolicyReferencesInPermissionSet (List)
  • sso:ListDirectoryAssociations (Read)
  • sso:ListInstances (List)
  • sso:ListManagedPoliciesInPermissionSet (List)
  • sso:ListPermissionSetProvisioningStatus (List)
  • sso:ListPermissionSets (List)
  • sso:ListPermissionSetsProvisionedToAccount (List)
  • sso:ListProfileAssociations (Read)
  • sso:ListProfiles (List)
  • sso:ListRegions (List)
  • sso:ListTagsForResource (Read)
  • sso:ListTrustedTokenIssuers (List)
  • sso:SearchGroups (Read)
  • sso:SearchUsers (Read)
IAM Identity Center directory: 1 actions
  • sso-directory:DescribeDirectory (Read)

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 1 write, tagging or permissions-management action, short of full control of any service.

Guidance

Practical scope

3 statements, all Allow. AWSSSOReadOnly allows 19 entries on Resource "*": ds:DescribeDirectories, ds:DescribeTrusts, iam:ListPolicies, 9 AWS Organizations read entries (such as organizations:ListAccounts and organizations:ListDelegatedAdministrators), sso:Describe*, sso:Get*, sso:List*, sso:Search*, sso-directory:DescribeDirectory, access-analyzer:ValidatePolicy and signin:ListTrustedIdentityPropagationApplicationsForConsole. AllowKMSKeyUseViaAWSIAMIdentityCenterService allows kms:Decrypt with StringLike conditions on kms:ViaService (sso.*.amazonaws.com) and kms:EncryptionContext:aws:sso:instance-arn ("*"). AllowKMSKeyDiscovery allows kms:ListAliases and kms:DescribeKey on "*".

Use cases

  • Give users or roles read-only access to view IAM Identity Center configuration.

Best practices

  • AWS managed policies don't grant least privilege permissions. The IAM User Guide says to consider the security risk of granting principals more permissions than they need, and suggests using Access Analyzer to see which permissions principals use, then writing a custom policy or generating one with only the required permissions.

Security considerations

  • It is not limited to IAM Identity Center. It also includes ds:DescribeDirectories and ds:DescribeTrusts, AWS Organizations read entries, iam:ListPolicies and access-analyzer:ValidatePolicy, all on all resources.
  • It includes kms:Decrypt (conditioned on kms:ViaService and the IAM Identity Center instance ARN encryption context), kms:ListAliases and kms:DescribeKey, so it is more than metadata reads for instances that use customer managed keys.
  • You cannot change the permissions in an AWS managed policy. If AWS updates the policy, the update affects every user, group and role it is attached to.

Assignment guidance

You can attach this policy to your users, groups and roles. The reference page also links to guidance on creating a permission set using AWS managed policies in IAM Identity Center. The IAM Identity Center User Guide says you can attach it to your IAM identities. It fits where view-only access to IAM Identity Center configuration is intended.

Same service

Same domain

Frequently asked questions

When should I attach AWSSSOReadOnly?
The reference page says you can attach AWSSSOReadOnly to your users, groups and roles, and describes it as: provides read only access to AWS SSO configurations. Attach it where viewing IAM Identity Center configuration is the intended scope.
What does AWSSSOReadOnly grant?
It allows ds, iam, organizations, sso, sso-directory, access-analyzer and signin read entries on all resources (including sso:Describe*, sso:Get*, sso:List* and sso:Search*), kms:Decrypt under IAM Identity Center conditions, and kms:ListAliases and kms:DescribeKey.
What are the security risks of AWSSSOReadOnly?
It makes no IAM Identity Center updates, but it reaches into ds, organizations and iam read entries, and it includes kms:Decrypt under conditions. AWS managed policies don't grant least privilege permissions, and you must consider the security risk of granting principals more permissions than they need. AWS updates to the policy affect every identity it is attached to.

Policy JSON

Download policy.json

{
  "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": "*"
    }
  ]
}

Version history

Current version v12, edited by AWS on 2026-02-12. Version history is recorded from 2026-11-11. Earlier versions are in the IAM console under Policy versions.

Attach snippets

AWS CLI

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

CloudFormation

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

Terraform

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

CDK (TypeScript)

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

Sources