Configure strong authentication policies to secure each of your apps. For a full list of applications (apart from Outlook clients) that support Modern Authentication, see the Microsoft documentation referenced here. Protocols like POP and IMAP, which do not support modern authentication methods are referred to as legacy authentication protocols. Important:The System Log APIwill eventually replace the Events API and contains much more structured data. Password Hash Synchronization relies on synchronizing password hash from an on-premise Active Directory (AD) to a cloud Azure AD instance. disable basic authentication to remedy this. Although sent with SSL, the header or custom header authentication didn't meet more stringent security requirements for various clients and industries. The debugContext query should appear as the first filter. D. Office 365 currently does not offer the capability to disable Basic Authentication. Click Add Rule . Create policies in your Okta org to govern who needs to authenticate with which methods, and in which apps. 2. and disable legacy authentication to Exchange Online using PowerShell before federating Office 365 access to Okta (at either the. The Expected Behavior/Changes section below addresses the trade-offs that must be made to enforce MFA for Office 365. For more information please visit support.help.com. Select one of the following: Configures user groups that can access the app. (Policy precedents are based on stack order, so policies stacked as such will block all basic authentication, allowing only modern authentication to get through.). A. Legacy Authentication Protocols Enables organizations to deploy devices running Windows 10 by pre-registering their device Universal Directories (UD) in AAD. Managing the users that access your application. If the policy includes multiple rules and the conditions of the first rule aren't satisfied when a user tries to access the app, Okta skips this rule and evaluates the user against the next rule. Any 1 factor type or Any 1 factor type / IdP: The user must provide a possession, knowledge, or biometric authentication factor. See, Okta has multiple authentication solutions that provide trade-offs in terms of implementation complexity, maintenance, security, and degrees of customization. See Okta Expression Language for devices and . Place the mouse cursor in Enter Field Value and System Log will list all the available results from events in the System Log. With any of the prior suggested searches in your search bar, select, User Agent (client.userAgent.rawUserAgent), Client Operating System (client.userAgent.os), or, Client Browser (client.userAgent.browser), Country (client.geographicalContext.country), Client email address (check actor.alternateId or target.alternateId). Example 3: To set the new authentication policy as default for all users: To enforce Office 365 authentication over modern authentication the policies need to be configured in Office 365 applications sign-on section in the Okta Admin console. D. Office 365 Administrators will need the Modern Authentication supported PowerShell module to connect to online Exchange. I can see the Okta Login page and have successfully received the duo push after entering my credentials . Azure AD is Microsofts cloud user store that powers Office 365 and other associated Microsoft cloud services. Select the Enable API integrationcheck box. The mapping of groups in Okta to Vault policies is managed by using the users and groups APIs. When software storage is used, Okta Verify will not satisfy the authentication policy if Hardware protection is selected as an AND Possession factor restraints are THEN condition. The whole exercise is a good reminder to monitor logs for red-flags on a semi-regular basis: As you get used to doing this, your muscle memory for these processes will grow, along with your understanding of what normal looks like in your environment. . Daily logins will authenticate against AAD to receive a Primary Refresh Token (PRT) that is granted at Windows 10 device registration, prompting the machine to use the WINLOGON service. Okta inline hook calls to third-party external web services previously provided only header-based authentication for security. For a list of Microsoft services that use basic authentication see Disable Basic authentication in Exchange Online. Oktas Autopilot enrollment policy takes Autopilot traffic (by endpoint) out of the legacy authentication category, which would normally be blocked by the default Office 365 sign-in policy. Save the file to C:\temp and name the file appCreds.txt. Federated authentication is a method which delegates authentication to the identity provider (IDP), which in this case is Okta. It occurs because the server is attempting a Device Trust challenge with a device that does not have a client certificate. 1. Here are a few Microsoft services or features available to use in Azure AD once a device is properly hybrid joined. AAD authenticates the user and the Windows Hello for Business enrollment process progresses to request a PIN to complete enrollment. Re-authenticate after (default): The user is required to re-authenticate after a specified time. See Okta Expression Language for devices. ** Even after revoking a 'refresh-token', the user might still be able to access Office 365 as long as access token is valid. Use the Okta-hosted Sign-in Widget to redirect your users to authenticate, then redirect back to your app. A disproportionate volume of credential stuffing activity detected by Oktas ThreatInsight targets Office 365 tenants, specifically, checking credentials stolen from third parties against accounts with basic authentication enabled. Azure conditional access policies provide granular O365 application actions and device checks for hybrid domain joined devices. If search results return a large number of events from a diverse range of devices, the best option is to: When troubleshooting a relatively small number of events, Oktas System Log may suffice. Using a scheduled task in Windows from the GPO an AAD join is retried. The MFA requirement is fulfilled and the sign-on flow continues. Instead, you must create a custom scope. If you already know why these authentication methods are risky, skip straight on to the queries and containment strategies. The policy configuration consists of the following: Client: Select Web browser and Modern Authentication client and all platforms: Actions: Select Allowed and enable Prompt for factor. Any user type (default): Any user type can access the app. Every app in your org already has a default authentication policy. By following the guidelines presented in this document, Okta customers can enforce MFA on all mail clients supporting modern authentication, hence helping secure their Office 365 application against phishing, password-spraying, KnockKnock and brute force attacks. You can use one of Okta's SDKs or an open-source library if an appropriate Okta SDK is not available. To access Exchange Online over Modern Authentication using PowerShell, install the Microsoft Exchange Online Remote PowerShell Module. But later it says "Authorisation Error: invalid_client: Client authentication failed.Either the client or the client credentials are . Not all access protocols used by Office 365 mail clients support Modern Authentication. It has become increasingly common for attackers to explore these options to compromise business email accounts. When you finish encoding, you can then use the encoded client ID and secret in the HTTP Authorization header in the following format: 'authorization: Basic '. NB: Your Okta tenant will not have visibility of EWS authentication events that (a) support basic authentication and (b) authenticate to the onmicrosoft.com domain instead of the domain federated to Okta. AAD interacts with different clients via different methods, and each communicates via unique endpoints. In setting conditions, keep in mind that some conditions are primarily useful for auditing and filtering events and shouldn't be treated as the basis for defining your security posture. In the fields that appear when this option is selected, enter the users to include and exclude. Later sections of this paper focus on changes required to enforce MFA on Office 365 using federated authentication with Okta as IDP. Every sign-in attempt: The user must authenticate each time they sign in. Start building with powerful and extensible out-of-the-box features, plus thousands of integrations and customizations. Use Rule 1 (example), Rule 2 (example), and Rule 3 (example) as a guide when setting up your authentication policy rules. b. Pass-through Authentication. Now you have to register them into Azure AD. To create an authentication policy denying Basic Authentication, enter the command (this blocks all legacy protocols as mentioned in Microsoft documentation): The policy properties are displayed in the terminal. Therefore, even if Modern Authentication is enabled on an Office 365 tenant, mail clients can still access it using Basic Authentication. Our frontend will be using some APIs from a resource server to get data. Everyone. Create one rule that challenges default users to provide their password and another rule that challenges all members of the designated group to provide Okta Verify. Creates policies that provide if/then logic on refresh tokens as well as O365 application actions. Okta Identity Engine is currently available to a selected audience. Launch PowerShell as administrator and connect to Exchange: Note: If your administrator account has MFA enabled, follow the instructions in Microsofts documentation. The Outlook Web App (OWA) will work for all browsers and operating systems as it is browser-based and does not depend on legacy authentication protocols. to locate and select the relevant Office 365 instance. Easily add a second factor and enforce strong passwords to protect your users against account takeovers. Optimized Digital Experiences. To find events that were authenticated via the Legacy Authentication endpoint, expand on user login events and select, to see the full context of the request. There are two types of authentication in the Microsoft space: Basic authentication, aka legacy authentication, simply uses usernames and passwords. The Client Credentials flow never has a user context, so you can't request OpenID scopes. 1. Choose your app type and get started with signing users in. If the number of choices is overwhelming, we recommend exporting the search to a CSV or continuing the search in a SIEM. For newly upgraded machines (Windows 10 v1803), part of the Out-of-the-Box Experience (OOTBE) is setting up Windows Hello for Business. Pass-through authentication removes the need to synchronize the password hash to a cloud Azure AD by using intermediate systems called pass-through authentication agents that act as liaison between on-premises AD and Azure AD. On its next sync interval (may vary default interval is one hour), AAD Connect sends the computer. Rule 3 denies access to all users that did not meet Rule 1 or Rule 2. Protect against account takeover. Access and Refresh Tokens. Many admins use conditional access policies for O365 but Okta sign-on policies for all their other identity needs. Specifically, we need to add two client access policies for Office 365 in Okta. Allowed after successful authentication: The device is allowed access when all the IF conditions are met and authentication is successful. This allows Vault to be integrated into environments using Okta. When a user moves off the network (i.e., no longer in zone), Conditional Access will detect the change and signal for a fresh login with MFA. In any network zone defined in Okta: Only devices in a network zone defined in Okta can access the app. Configure a global session policy and authentication policies, Okta deployment models redirect vs. embedded. It is a catch-all rule that denies access to the application. For more information on Windows Hello for Business see Hybrid Deployment and watch our video. It allows them to access the application after they provide a password and any other authentication factor except phone or email. Note: If there is a business requirement for allowing access to legacy authentication protocols, create a group of those user/service accounts and exclude that group from this rule by checking the Exclude the following users and groups from this rule option. In Windows Explorer, right-click C:\temp, and then select CMD Prompt Here from the context menu.
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