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Last week I spent a fair amount of time trying to integrate the Trend Micro Deep Security as a Service product with Azure AD using SAML.  Unlike most of the SAML work I’ve done with Azure AD this one was not entirely straightforward.  At the time of writing Trend Micro had no documentation specific to using Azure AD as the SAML Identity Provider.  They also haven’t thought to work with Microsoft on getting their product into the App Gallery.

If you have to go through the process hopefully this will save you some time.

I’m going to assume you already have some experience with Azure AD and SAML.

Step 1.  Download the Service Provider (SP) metadata XML

On the Administration tab of the Deep Security portal look for SAML below the User Management->Identity Providers node in the left hand pane.

01

 

Select the Download option and save the XML file locally.  Open in an XML editor (I use Notepad ++) to view the contents. You will need this to extract certain values for use with Azure AD.

Step 2.  Create a new Enterprise Application in Azure AD

In the Azure Portal, select Azure Active Directory and choose Enterprise Applications blade.  From there create a new non-gallery application and name it, e.g. Trend Micro Deep Security as a Service.

On the Single Sign-on blade select SAML-based Sign-on.

02

 

Copy the Entity ID value from the metadata XML file you downloaded in Step 1 and enter it into the Identifier  (Entity ID) field.

03

 

Copy the AssertionConsumerService Location value from the metadata XML file and enter it into the Reply URL field.

04

 

The values should appear the same as (or similar to) the screenshot below.

17

 

Save the configuration and download the AAD Identity Provider metadata XML.  You will need this for upload into the Deep Security portal.

06

Step 3.  Add a new SAML Identity Provider in Deep Security

Back in the Deep Security portal, select the option to add a new Identity Provider.  You will find this option in the Administration tab below User Management->Identity Providers->SAML.

 

Browse to the Identity Provider metadata XML file you downloaded at the end of Step 2.

07

 

Once it is uploaded, provide a name and description for the Identity Provider.  I recommend you use AzureAD as the name (make a note as you will need this later).

08

Finish the wizard.

Step 4.  Create a new Full Access role in Deep Security.

At the time of writing, Azure AD can’t cope with a space in the roles claim value, so you will need to create a new Full Access role in Deep Security that has a name with no space (e.g. FullAccess).

09

Modify the values in the wizard so that the permissions for the new FullAccess role match those of the built-in Full Access role.

10

Save the changes.

Make a note of the URN value for the newly created role.

11

 

Step 5.  Add attributes to the Azure AD Enterprise Application

Deep Security requires specific attributes to be present in the SAML response token.  You will need to add two new attributes named RoleSessionName and Role to the Enterprise Application you created previously.  The reason for adding them now, as opposed to when you created the application is because the Role attribute requires the URN elements generated in the Deep Security portal after the import of the AAD Identity Provider metadata.

You add new attributes on the Single Sign-On page of the Enterprise Application in the  AAD section of the Azure Portal.

18

Let’s take the RoleSessionName attribute first as this is the simplest.

Name=RoleSessionName, Value = user.userprincipalname,  Namespace=https://deepsecurity.trendmicro.com/SAML/Attributes

12

 

The Role value is the tricky on as it has a very specific syntax as defined here.

Name=Role, Value = urn:tmds:identity:[pod ID]:[tenant ID]:saml-provider/[IDP name], urn:tmds:identity:[pod ID]:[tenant ID]:role/[role name] , Namespace=https://deepsecurity.trendmicro.com/SAML/Attributes

In my example, the Value becomes: urn:tmds:identity:us-east-ds-1:55151:saml-provider/AzureAD,urn:tmds:identity:us-east-ds-1:55151:role/user.assignedroles

The URN values are derived from those generated inside the Deep Security SAML configuration.  The AzureAD in bold above is the IdP name we used when defining the Identity Provider in Deep Security.

Creating the correct syntax when adding the attribute involves using the Join() function as shown below.   This is to separate the URN sequence from the built-in user.assignedroles definition.

13

This was the value I put into the first part of the join (as it may not be clear from the screenshot above):

urn:tmds:identity:us-east-ds-1:55151:saml-provider/AzureAD,urn:tmds:identity:us-east-ds-1:55151:role/

Note that the trailing forward slash is required.

Save the updates to the enterprise application.

Step 6.  Manually edit the Manifest associated with the application

Each Enterprise Application that you create in Azure AD creates its own Application Registration.  In order to create role definitions that match those you’ve created in the Deep Security portal, you will need to edit the manifest associated with the application you have created in Azure AD.

To find your application registration in the Azure Portal, open up the Azure Active Directory node and select App Registrations.  Change the default view from My Apps to All Apps and search based on the name of the application you created for Trend Micro Deep Security.  Select Manifest to open the Manifest editor.

14

 

 

Under the appRoles node within the JSON file, select and copy the definition of the “User” role.  Be sure to copy the entire definition including the start and finish braces and paste below the “User” role definition.  In the part you have copied, replace the displayName, id, description and value definitions so that you have a new role named FullAccess.   For the id you simply need a unique GUID (you can generate one from www.guidgenerator.com).  Your edit should look similar to the screenshot below.

15

 

Save your changes to the manifest.

Note that spaces are not currently permitted in the “value” part of the role definition, which is why we had to create our FullAccess role based on the the built-in FullAccess role in Deep Security.

Step 7.  Assign users and/or groups to the new role

Once your FullAccess role has been defined in the manifest, you should be able to assign users and/or groups to the Enterprise Application you have defined in Azure AD.  You do this by selecting the Users and groups option within the application.

16

Step 8.  Test your sign-in

Now that you have assigned the FullAccess role to a user in Azure AD you are ready to test the sign-in.  The application should be visible in the myapps.microsoft.com portal.  If the configuration is successful, you should be able to access the Deep Security application portal.

19

And that’s it!  Of course you are free to define extra roles by following the steps shown to define the role both in Deep Security and Azure AD.

As you can see this is slightly trickier than most SAML integrations.  Hopefully it saves you some time if you have to do it.  With a bit of luck Microsoft will add Deep Security as a Gallery application the near future and you won’t need to go through the pain.

Tony

 

 

 

 

 

 

OK, the title has a whole bunch of acronyms which may not be entirely familiar. Actually…if we’re being really picky I should probably say a whole bunch of initialisms, but that would digress into a whole different article when a perfectly good Wikipedia article already exists for that. :-)

Anyway, PTA is the accepted short form of Pass-Through Authentication – one of the range of authentication options available with Azure Active Directory.

AADJ stands for Azure Active Directory Domain Join(ed).  This is a state for a Windows 10 machine in which it is joined to Azure Active Directory for a given tenant organisation.  It is materially different to Azure AD Device Registration and Hybrid Azure AD Join, as neatly described here.

If you’re already set up with Azure AD Connect, have AADJ devices and are using PTA for your user sign-ins then you should be aware of an important limitation with respect to the “User must change password at next log on” flag.  The flag itself is set on the user object in on-premises Active Directory.  If you’ve been around a while, you’ll already be familiar with the setting - it looks like this:

1

 

The setting is used in a number of organisations to deal with the following situations:

  • User has forgotten their password and the Service Desk assigns them a temporary password to get them going again
  • New hires who are assigned a temporary password to start them off

So what’s the problem with setting this flag in our PTA, AADJ scenario?  Well, quite simply the user won’t be able to sign-in to their Windows 10 machine.  Instead of the user being prompted to change their password when entering the credentials that include the temporary password, the user sees the generic, “The user name or password is incorrect. Try again”.

Hopefully Microsoft will provide a resolution to this in the near future.  At the time of writing the behaviour is seen as “by design” in so far as the error generated on the DC to which the credentials have been passed cannot be successfully translated back to the point where the sign in attempt occurs.

 

Configurable token lifetimes for Azure Active Directory (AAD) have been available for while now, although the feature is still in public preview.  This article provides details of how to create an access token lifetime policy and how to apply it to an application federated with AAD using SAML 2.0.

Before we get started with this, we need to ensure you have the correct (i.e. Preview) version of the AAD Powershell Module.  The current link for this is:

https://www.powershellgallery.com/packages/AzureADPreview/2.0.0.17

Note that the module is subject to change, so search for the latest version.

The default Access Token Lifetime Policy that applies to SAML2 tokens is one hour as described in this article.

3

Ok, let’s go ahead and create a new Token Lifetime Policy.  To do this we are going to use the New-AzureADPolicy cmdlet, as shown in the example below.

New-AzureADPolicy-Definition @(‘{“TokenLifetimePolicy”:{“Version”:1,”AccessTokenLifetime”:”12:00:00″}}’) -DisplayName“12HourTLP”-IsOrganizationDefault$false-Type“TokenLifetimePolicy”

In this example, I have set the token lifetime to 12 hours.  Now this is just an example, you will need to consider the security implications of whatever policy you create.  Here’s the output.

1

We will need to make a note of the Id (GUID value) of the new policy as we will need this later.

The next step if to identify the service principal associated with your SAML-enabled application.  This uses the Get-AzureADServicePrincipal cmdlet, as follows:

Get-AzureADServicePrincipal-SearchString“My”

We can run the cmdlet without the searchstring parameter, but that tends to return a lot of results for us to pick our way through. Here’s what the output looks like.  Again, we should make a note of the ObjectID value as we will need this later.

2

Now you check which policies currently apply to your service principal.  We use the Get-AzureADServicePrincipalPolicy cmdlet to do this using the ObjectID of the service principal for our application.

Get-AzureADServicePrincipalPolicy-Id1911f64f-9d76-4ebf-9fcb-b3814e2e5e21

In this example, the output shows that a TokenIssuancePolicy is applied, but no TokenLifeTimePolicy – so we can assume that the default TokenLifeTimePolicy of 1 hour is in play.

4

Now we can go ahead and apply our newly created TokenLifeTimePolicy to the service principal representing our application.  This uses the Add-AzureADServicePrincipalPolicy cmdlet. The “Id” parameter needs to the ObjectID of our service principal, while the “RefObjectId” parameter needs the GUID of the Token Lifetime Policy we created earlier. And, yes, it can be confusing!

 

Add-AzureADServicePrincipalPolicy-Id1911f64f-9d76-4ebf-9fcb-b3814e2e5e21-RefObjectId74f4296d-fcdb-4c72-b434-b1628adef47b

Note that, if successful, this cmdlet returns no output.

5

We can now re-run the cmdlet to check which policies have been applied to our service principal.

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As you can see, our 12HourTLP policy is now applied.

This is all very well, but how can we determine whether the policy is actually in effect or not?  One option is to sign-in to the application and wait for 12 hours to roll over.  If you have luxury of time for this then you clearly aren’t as busy as I am!  A better option is to examine the SAML Response XML using a SAML inspection tool such as the SAML Chrome Panel extension for the Chrome browser. Once you have the Response XML, look at the Conditions node and confirm that the NotBefore and NotOnOrAfter values show a 12 hour difference – see example below.

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That’s it really.  In this article you have hopefully learned how to create a new Access Token Lifetime Policy as well as how to apply it to an existing SAML 2.0 application that is leveraging AAD as the Identity Provider (IdP).

Until next time!

Tony

This article describes how to configure Azure Active Directory as the SAML Identity Provider (IdP) to change the default AWS Console timeout from 1 hour to a different value.

It seems there has been a lot of discussion about how to change the timeout and there is no clear documentation from AWS how to achieve this with Azure AD.  As an example of the confusion, have a look at this discussion thread:

https://forums.aws.amazon.com/message.jspa?messageID=733264

Some good guidance is provided on how to achieve this with ADFS, as described here, but I haven’t yet seen any guidance for Azure AD.

OK, here’s how to do it.  (Note that this assumes you have already configured the AWS Console to work with Azure AD via SAML)

Go to your Azure Portal and open the Single Sign-On blade for your Amazon Web Services Console application.  Under the User Attributes section, select the checkbox to expose other user attributes, as shown below.

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Select the option to add a new attribute.

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In the Add attribute blade, set the Name value to “SessionDuration” (note that this tag is case sensitive), the Value to the timeout in seconds that you want, and the Namespace to “https://aws.amazon.com/SAML/Attributes“. Then click OK.

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The net result should look like this:

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Save the changes and you are ready to go and test the new timeout.

For more information on the SessionDuration attribute, please see the AWS documentation here:

https://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_providers_create_saml_assertions.html

Tony

 

I’ll get to the problem with Powershell Execution Policy shortly, but first a bit of background…

If your AAD/O365 admin accounts are configured for multi-factor authentication (which they should be, because it’s free), you will likely be familiar with the Exchange Online PowerShell Module, which is designed to work with MFA.  Getting to the Module download is not blindingly obvious.  Go to the Hybrid menu option in the Exchange Admin Center and select the second option as shown below.

ps0

 

Once it is downloaded you can launch it and sign-in using the Connect-EXOPSSession command.

OK, that’s all the background.  On with the meat of this article…

Once you’re up an running you might, like me, want to run a script within the session.  This is where things got tricky.  In my case I wanted to run the AnalyzeMoveRequestStats.ps1 script to, well, analyse my mailbox move request statistics as described here.  When I tired to dot source the script as described in the article, I received the standard error you often see when you haven’t got your execution policy set correctly.

ps1

But when I checked my execution policy things looked OK.

ps2

So, what was going on?  After a bit of research, I found there are several different types of execution policy that come into play, as described here.  You can list the current policies by adding the “-list” parameter to the Get-ExecutionPolicy cmdlet.  In my case the current session (Process) was set to RemoteSigned.

ps3

 

The RemoteSigned option was clearly insufficient for my needs, so I had to set it to Unrestricted using the command, Set-ExecutionPolicy -Scope Process -ExecutionPolicy Unrestricted.

ps4

 

After running the command, the ExecutionPolicy for Process now showed as Unrestricted.

ps5

I could now dot source the script.

ps6

Note that you will need to change the execution policy each once per session if you are running scripts in this way with the Exchange Online Powershell Module (MFA version).  There is likely a simpler way to set this permanently, but I quite like the fact that the module re-sets the security each time in this way.  Setting the execution policy to Unrestricted permanently is not a good practice.

Please leave a comment if you know of a different way of achieving the same result – especially if easier ;-)

Tony

I got caught by surprise earlier today when I was looking at some of my older blog posts. It turns out my first entry was on the 10th March 2008. Happy 10th birthday Open a Socket!

Thanks to all of you who have supported me over the years with comments, words of encouragement, and for keeping the verbal abuse to a bare minimum.

Tony

Actually, this is more of a question than answer – although I have an answer of sorts, albeit far from elegant.

I’ve been scheduling some batch onboarding mailbox migrations from a hybrid environment with Exchange 2010 to Exchange Online.  The batch process is pretty straightforward, but I haven’t found an easy way to dump the list of users within the batch after it has been created.  Of course if you are using the CSV import method of populating the batch this is a bit of a non-issue.  However, if you’re creating the batch manually you might want to check back in at some point and remind yourself who is in the batch – or you might want to export the list to send to someone else.  Now I’m not entirely new to Powershell, but I can’t see any obvious way to do this easily.  Here’s what I ended up with:

(Get-MigrationBatch -Identity “MyBatchName” -IncludeReport | select -ExpandProperty report).entries.message.formatparameters | ?{$_ -like “*@*”}

Ugly, isn’t it?  The above command will provide a list of email addresses of the mailboxes within the batch.

If you have found an easier way of doing this, please post a comment below.

 

 

Here’s something I discovered recently and would like to share with you.  If you are using Skype for Business Online and want to control access to it using Conditional Access policy, you should be aware that under certain circumstances the control can be completely bypassed.

The problem has to do with the fact that Conditional Access only kicks-in when the authentication attempt is from the following:

-A web browser
-A client app that uses modern authentication
-Exchange ActiveSync

Conditional Access is not processed by legacy clients, i.e. those that do not support modern authentication.  For example, the Skype for Business 2015 client (the one that ships with Office 2013, and without modern authentication enabled) cannot interpret the Conditional Access policy and as such will bypass the controls.

Let’s look at this in more detail.

In this example, I have created a new Conditional Access policy specifically for Skype for Business Online.

I want all users to be included in the policy.

001

I only want the policy to apply to Skype for Business Online.

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And finally, I only want access to be permitted from Hybrid Azure AD devices (i.e. those that are joined to on-premises AD and device registered in AAD).

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I’ve left all of the other settings within the policy at their defaults.  Once I’ve enabled and saved the policy the next thing to do is test whether it works as expected.

The first test is to determine whether the policy blocks access from the Skype for Business 2016 client (click-to-run version) running on a device that does not meet the Hybrid Azure AD condition.  As expected, the access is denied along with a friendly and reasonably helpful error message (shown below).

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The second test is run from a machine that also doesn’t meet the Hybrid Azure AD condition, but this time the sign-in attempt is from the Skype for Business 2015 client.  In this test, the user is able to sign-in without any problems.

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The Skype for Business 2015 client is effectively able to completely bypass the Conditional Access control, thereby rendering it effectively useless.  Your Skype for Business Online instance can be accessed from any device from anyone who has valid credentials.  The question is then what you can do about it?  There’s currently no silver bullet to handle this scenario.  Microsoft makes provision to block legacy client apps for SharePoint Online and, to an extent Exchange Online, but there is nothing obviously available for Skype for Business Online.

One workaround is to force MFA (at the Azure AD level) for the users that need to access Skype for Business.  With MFA enabled the user sees the following (spectacularly unhelpful) error when trying to sign-in from the Skype for Business 2015 client.

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I understand that Microsoft are (as of November 2017) looking a method – currently in private preview – to address issues with legacy clients and Conditional Access, not just for Skype for Business, but across the board.  Watch this space.

 

 

 

I recently had a challenge with a customer that had on-premises Skype for Business (SfB) and were looking to migrate to SfB Online. They did not want to federate the two infrastructures, but instead wanted to undertake a re-pointing of users at a given point in time by modifying the DNS records. When they introduced AAD Connect the default synchronisation included the SfB attributes, which is standard behaviour when AAD Connect detects that the schema extensions for SfB are present in on-premises AD. The presence of SfB-related user attribute values in the synchronisation flow caused SfB Online to detect all existing SfB on-premises users as hybrid. It meant my customer could not assign SfB Online access to synchronised users, which would have been a problem for testing the cut-over. The workaround for this was to modify the AAD Connect synchronisation rules to set the SfB attribute values to null.  The steps implemented to achieve this are shown below.

1. Stop the AAD Connect sync scheduler. 

From an elevated Powershell prompt run the following command

Set-ADSyncScheduler -SyncCycleEnabled $false

2. Open the Synchronisation Rules Editor and create an editable copy of the ‘In from AD – User Lync’ inbound synchronisation rule.

sfb1

 

3. Set the new rule to have a higher precedence (lower numeric value) than the original rule. 

sfb2

 

4. Leave the scoping filter as is, i.e. no change.

sfb3

 

5. Leave the join rules as is, i.e. no change.

sfb4

 

6. Edit the transformation for each of the shown values.  Change the flow type to Expression and the source to Authoritative Null.

sfb5

 

7. Save the rule.

8. Start the AAD Connect Sync scheduler and run a full (initial) synchronisation by running the following Powershell commands:

Set-ADSyncScheduler -SyncCycleEnabled $true
Start-ADSyncSyncCycle -PolicyType Intial

9. Confirm that the synchronised users no longer appear as hybrid users in SfB Online.  Run the following Powershell command:

Get-CsOnlineUser | ft userprincipalname, interpretedusertype -AutoSize

Note. This command requires the Skype for Business Online Windows Powershell Module, available here.

The output should show your synchronised users with an InterpretedUserType of  ‘NoService’.  If any appear as ‘HybridOnPrem’ then the custom synchronisation rule has not taken effect.

The synchronised users should now be available to enable for Skype for Business Online.

 

Hopefully, this has been useful to you.  Let me know if you have any corrections or suggestions for improvements by adding a comment.

 

Last week I came across an issue when attempting to create a new custom synchronisation rule in Azure AD Connect. When I tried to finish the wizard and add the rule, I received the error: “Object reference not set to an instance of an object”.

object_reference_not

The workaround is to add a tag to the rule on the Description page, as shown below.  The tag doesn’t need to be meaningful.

tag

The issue appears to be specific to version 1.1.561.0 (July 2017) of AAD Connect. It wasn’t a problem in previous versions and it has been addressed in version 1.1.614.0 (September 2017).

For the latest of AAD Connect versions and version history, see https://docs.microsoft.com/en-us/azure/active-directory/connect/active-directory-aadconnect-version-history