Step
1: Download the metadata from SplunkSplunk software allows you to search, monitor, and analyze machine data (see https://www.splunk.com). You can protect access to Splunk by integrating Splunk with Identity as a Service. Once integrated, users can use single sign-on to log in to their Splunk account through Identity as a Service.
Note: This integration was tested using Identity as a Service version 5.14 and Splunk version 8.1.1. Other versions of Splunk may require integration and configuration steps that differ from those documented in this procedure. For other versions of Splunk, this integration guide may be used as an initial approach for integrating Splunk. In the event of other issues, contact support@entrust.com for assistance.
Step
1: Download the metadata from Splunk1. Log in to your Splunk account as an administrator.
2. Click Settings > Authentication Methods.
3. If the Choose Default Dashboard dialog box appears, click Save and then click Settings > Authentication Methods again. The Authentication Methods page appears.
4. Click the SAML radiobutton.
5. Click Configure Splunk to use SAML. The SAML Configuration dialog box appears.
6. Click Download File to download the SP Metadata File. The SP Metadata file downloads.
Step
2: Add Splunk to Identity as a ServiceAdd Splunk as an application to Identity as a Service
1. Log into your Identity as a Service administrator account.
2. Click
> Security > Applications. The Applications
Lists page appears.
3. Click Add. The Select an Application Template page appears.
4. Under SAML Cloud Integrations, click Splunk. The Add Splunk page appears.
5. Enter an Application Name.
6. Enter an Application Description.
7. Optional. Add a custom application logo.
a. Click 
next to Application Logo. The
Upload Logo dialog box appears.
b. Click 
to
select an image file to upload.
c. Browse to select your file and click Open. The Upload Logo dialog box reappears showing your selected image.
d. If required, resize your image.
e. Click OK.
8. Select the Authentication Flow that appears to users during login.
9. Click Next. The General page appears.
10. Click
to the Upload Metadata XML
and browse to the location of the metadata file you downloaded
in Step 1: Download the metadata from Splunk.
The Metadata Configuration dialog box appears.
a. If required, click Merge with existing values to merge new values with existing values for Alternative Assertion Consumer Services URLs and SAML attribute names.
b. Click Save.
Attention: Note the Service Provider Entity ID (Issuer). You need this in Step 5: Configure Splunk for Identity as a Service authentication.
11. Optional. Enter the SAML Username Parameter Name used to identity the user ID being requested for authentication. The user ID can then be passed as a parameter, for example, Username=jdoe. Alternately, if the SAML username is NameID, the SAML Request XML NameID element value is used to the identify the IDaaS userID.
12. Enter the SAML Session Timeout to the time when the SAML Assertion times out. The maximum is 720 minutes.
13. Enter the Max Authentication Age (seconds) to set the maximum amount of time that can elapse before a user is required to reauthenticate during a new login attempt. This applies for both SP-initiated and IDP-initiated login. Set this field to -1 to disable this feature.
14. From the SAML NameID Attribute drop-down list, select UserID.
15. From the SAML NameID Encoding Format drop-down list, select Unspecified.
16. From the SAML Signing Certificate the drop-down list, select the signing certificate.
17. From the SAML NameID Encoding Format drop-down list, select SHA256.
18. Deselect Sign Complete SAML Response.
19. Deselect Enable Go Back Button if you do not want users to be able to go back to the Splunk login page to log in.
20. Select Show Default Assertion Consumer URL Service in the My Profile. When selected, the Default Assertion Consumer URL appears in a user's My Profile page in addition to relay states and Alternative Assertion Consumer URLs.
21. Optional. Add Alternative Assertion Consumer Service URLs, as follows:
a. Click Add.
b. Enter a Name.
c. Enter a URL Value.
d. Select Show in My Profile to display the Alternative Consumer Service URL in a user's My profile page.
e. Optional. Add an Application Logo.
f. Click Add.
g. Repeat these steps to add more Alternative Assertion Consumer Service URLs.
22. Add a SAML Attribute for Groups, as follows:
a. Under SAML Attributes, click Add. The SAML Attributes dialog box appears.
b. In the Name field, enter SPGroups.
Attention: Note the Name. You need this in Step 5: Configure Splunk for Identity as a Service authentication.
c. From the drop-down list, select the Name Format for the attribute.
d. Click Add next to Value(s).
e. Type [ and select [Groups] to include a user's groups every time the user authenticates to Splunk.
23. Click Submit.
Step 3: Create
a resource rule to protect access to Splunk
Create a resource rule to protect access to a SAML application
1. Log in to your Identity as a Service administrator account.
2. Click
> Security
> Resource Rules. The Resource Rules List
page appears.
3. Click + next to the application you want to protect with a resource rule. The Add Resource Rules page appears.
4. Enter a Rule Name and Rule Description for the resource rule.
5. In the Groups list, select the group or groups of users restricted by the resource rule.
These are the groups to which the resource rule applies. If you do not select any groups, by default the resource rule applies to all groups.
6. Click Next. The Authentication Conditions Settings page appears.
7. Optional: Select Disable Single Sign-On for Application to force a user to re-authenticate whenever they attempt a new login.
8. If you do not Enable Advanced Risk Factors, do the following:
a. Select the Authentication Flow from the drop-down list. The Authentication Flow flowchart updates based on the selection.
b. Click Submit to save the Resource Rule.
9. If you want to Enable Advanced Risk Factors, complete the remaining steps in this procedure.
10. Select Enable Advanced Risk Factors to add additional risk factors to the resource rule.
11. Select Enable Strict Access for Application to set the resource rule to deny access regardless of the outcome from other resource rules. If this option is disabled for any resource rule that denies access, the user is allowed access if at least one resource rule allows access.
12. For each Advanced Risk Factor, click the Deny option to deny access to the application if the risk factor fails regardless of the results of the other risk factors.
13. Click Date/Time to set the conditions as follows:
a. Select one of the following:
– Allow Date/Time to set when a user can access the application.
– Deny Date/Time to set when the user cannot access the application.
The Date/Time Context Condition Settings appear.
b. Select the Condition Type:
– Specific Date Range Condition—Allows or denies access to the application during a select period of days.
– Time-of-day and/or Day of Week Recurring Conditions—Allows or denies access to the application on a specific time of day, day of the week, or both. Recurring times selected only apply to days not denied.
– Clear Selection—Clears existing Date and Time conditions.
c. Set the Condition Type settings, as follows:
i) Select Use local time zone to use the local time zone or deselect Use local time zone to use the local time zone and begin typing the time zone in the Begin Typing Timezone name field and select the time zone from the drop-down list.
ii) If you selected Specific Date Range Condition, click Start Date to select a start date from the pop-up calendar. Optionally, select the End Date.
iii) If you selected Time-of-Day and/or Day-of-Week, click Start Time and select the start time from the pop-up clock. Optionally set the End Time. You must also select the days of the week for the condition.
d. Click Save to return to the Authentication Conditions Settings page.
14. Click Geolocation to set the Location Condition Settings, as follows:
a. Select Allow or Deny to create an allowed or denied country list.
b. From the Selected Countries drop-down list, select the countries to add or deny access to the application. Repeat until you have added all the desired countries to the list.
c. Select Allow Anonymous IP Address to increase the risk of users authenticating from an anonymous IP.
d. Click Save to save to return to the Authentication Conditions Settings page.
15. Click Source IP Address. The IP Address Risk Setting dialog box appears. Do one of the following:
a. Select Custom and add the required IP Allowed Addresses and IP Denied Addresses.
b. Select IP List Address and select the IP List to allow or deny.
c. Select None to not restrict any IP addresses.
d. Click OK to return to the Authentication Conditions Settings.
16. Click Machine Authentication to set the Machine Authentication Condition Settings, as follows:
a. Set the Machine Authentication Risk is less than or equal to the value that the machine authenticator's total risk score must be less than during authentication to pass this condition.
The risk score is based on the attribute differences
between a user's Machine Authentication information and that recorded
on Identity as a Service before the condition fails. If an attribute does
not match, the attribute incurs the number of risk points shown in Non-Matching Risk Points for that attribute. The
Non-Matching Risk Points values of each non-matching
attribute are added together, resulting in a total risk score. This score
is normalized to be out of 100 as follows:
Total Risk Score = (Total Risk Points
of Failing Attributes / Maximum Risk Points of All Enabled Attributes)
* 100
The resource rule condition fails when the number of non-matching risk
points exceeds the Machine Authentication Risk value defined in this step.
A value of 0 means that a single attribute
difference causes the Device Fingerprint
condition to fail. The default value is 3.
The value between 0-50 can be entered.
The default value is defined by the Machine Risk Limit.
See Modify machine authenticator settings.
b. Click Save.
17. Define the Location History / Known Locations and Travel Velocity conditions. The Risk-Based Authentication (RBA) settings of your Identity as a Service account define the location history and travel velocity conditions. See Manage risk-based authentication settings for more information.
18. Set the Device Certificates risk factor to require the client to perform client-authenticated SSL with a certificate issued from a trusted CA to pass.
19. Set the risk score for application conditions to set the risk percentage a user receives if they fail to meet the condition, as follows:
● Click the dot next to the condition setting and slide the risk scale to the risk percentage
-or-
● Click the 0% and enter the risk points and then click OK.
The default setting is 0%. The Risk percentage determines the authentication requirements as set by the Authentication Decision. When a user attempts to authenticate to an application, the final risk percentage is the sum of all failed conditions.
20. Set the Authentication Decision risk level for Medium Risk and High Risk as follows:
a. Click the risk threshold percentage to the right of Medium Risk or High Risk. The Risk Threshold dialog box appears.
b. Enter the risk percentage.
c. Click OK.
21. Select the Authentication Flows for Low Risk, Medium Risk, and High Risk from the drop-down lists. The Authentication Flows flowchart updates based on your selections.
22. Click Submit to create the resource rule.
Step 4: Download
the metadata file from Identity as a ServiceDownload the Metadata file from Identity as a Service
1. In Identity as a Service, click
> Security > Applications.
The Applications List page appears.
2. Do one of the following:
● Click
next to the application you are integrating
with Identity as a Service.
–or–
● Click
next to the application you are integrating
with Identity as a Service and select SAML IDP Metadata.
The SAML Application Metadata dialog box appears.
3. Select the certificate to include in the SAML IDP Metadata file from the drop-down list.
4. If applicable, Select the domain to include in the SAML IDP Metadata file from the drop-down list.
5. Enter the Lifetime, in days, for the SAML IDP Metadata file. The value must be between 2 and 730.
6. Do one of the following, as required:
a. Copy the Public Endpoint to paste into your SAML application being used Identity Provider authentication.
b. Click Download.
Note: If you are using multiple domains, you must download each domain's metadata file separately because the values in the metadata file vary for each domain.
Step 5: Configure
Splunk for Identity as a Service authentication Configure Splunk for Identity as a Service authentication
1. Log in to your Splunk account as an administrator.
2. Click Settings > Authentication Methods.
3. If the Choose Default Dashboard dialog box appears, click Save and then click Settings > Authentication Methods again. The Authentication Methods page appears.
4. Click the SAML radiobutton.
5. Click Configure Splunk to use SAML. The SAML Configuration dialog box appears.
6. Click Select File to upload the Metadata XML File you downloaded in Step 4: Download the metadata file from Identity as a Service.
7. Browse to select the Identity as a Service metadata file and click Open. The file Uploads to your Splunk SAML configuration.
8. Scroll to Advance Settings, click the Name Id Format field and select Unspecified from the pop-up menu.
9. Scroll to SSO Binding and select HTTP Redirect.
10. For the Signature Algorithm, select SHA256.
11. Scroll
up to Alias and click 
to expand
and then do the following:
a. In the Role alias field, enter SPGroups. This is the groups SAML Attribute you created in Step 2: Add Splunk to Identity as a Service.
12. Scroll to the Entity ID field and enter the Service Provider Entity ID (Issuer) you copied in Step 2: Add Splunk to Identity as a Service.
13. Select Sign AuthnRequest.
14. Click Save. The SAML Groups page appears.
15. Click New Group. The Create New SAML Group dialog box appears.
16. In the Group Name field, enter splunkusers.
17. In the Splunk Roles list, select user.
18. Click Save.
Testing Service Provider Login
1. Open a Web browser and enter the URL for your Splunk account. You are directed to Identity as a Service.
2. Enter your Splunk account User ID and click Next.
3. Respond to the second-factor authentication challenge. If you respond successfully, you are logged in to the Splunk Home page.
Testing Identity as a Service redirect log in
1. Log in to your Identity as a Service account.
2. Go to your My Profile page if you are not already there.
3. Under Applications, click Splunk.
4. Respond to the second-factor authentication challenge. If you respond successfully, you are logged into Splunk.