Mac computer GlobalProtect with Computer Cert How To

ebrookman — Wed, 01 May 2019 19:48:31 GMT

Below are the instructions that I have cobbled together to install GlobalProtect on a Mac and not have the system ask for authentication of an administrator at each connection. Full document with pictures is available on my GitHub.

https://github.com/scriptingcaveman/PaloAlto-Documents

The use case that led me to these directions is a non-administrator user on a Mac with Always on VPN with computer certificate. The user will not have access to the administrator password for the authentication prompt.

Installation and Configuration of Global Protect on Mac OSx
Installation of GlobalProtect Client for Mac:
1. Log into the GlobalProtect Portal, download and run the installer for Mac OSx.
2. On the Introduction Screen, press “Continue”.
3. On the Destination Select screen choose the default by pressing “Continue”
4. On the Installation Type screen, ensure GlobalProtect Package Name is selected with
the checkbox. Press “Continue”.
5. Confirm the Installation by pressing “Install”.
6. Enter the computer Administrator’s name and password to begin installation and press
“Install Software”.
7. System Extension Blocked: Click on “Open Security Preferences” to allow the
GlobalProtect installation to proceed.
8. On the Security & Privacy screen, Press “Allow” to continue the installation.
9. Once the installation is complete, click “Close” on the Summary screen.
Certificate Configuration for GlobalProtect
1. Configure the Certificate Template
a. From the CA console, right-click Certificate Templates and select “Manage”
b. Right-click the “Workstation Authentication” template, then select “Duplicate
Template”.
c. On the “General” Tab, enter a template name that is recognizable.
d. On the “Request Handling” tab, make sure the “Allow private key to be
exported” is selected.
e. Click the “Subject Name” tab and select “Supply in the request”. Press “OK” in
the warning dialog to acknowledge the security risk.
f. Click the “Security” tab and remove the “Enroll” permission from the security
groups Domain Admins and Enterprise Admins.
g. Click “Add”. In the “Select Users, Computers, Service Accounts, or Groups”
dialog box, click “Object Types”, then “Computers”, then click “OK”. Specify the
name of a Windows computer that will request the certificate on behalf of the
Mac Computers (it can be the CA itself), click “Check Name” to verify, finally
click “OK”.
h. Select Enroll permission for this computer. **DO NOT CLEAR READ
PERMISSIONS**
i. Click “OK” and close the Certificate Templates Console.
2. Issue Certificate to Mac Workstation
a. From the computer that was configured in step 1 above, click “Start”, click
“Run”, type mmc.exe.
b. Click “File”, then “Add/Remove Snap-In”
c. In the dialog box that appears, select Certificates, and press “Add”
d. In the “Certificate Snap-In” dialog box, select Computer Account and press
“Next”
e. In the “Select Computer” dialog box, ensure Local Computer is selected and
press “Finish”.
f. Click “OK”
g. Expand “Certificates (Local Computer)”, then click “Personal”.
h. Right-click Certificates; click All Tasks; and click Request New Certificate.
i. On the Before You Begin screen, press “Next”
j. Press “Next” on the Certificate Enrollment Screen
k. Select the Certificate template created in the previous steps.
i. Click the hyperlink under the Certificate
l. On the Certificate Properties dialog box, enter the value in the Subject name
box. Use the FQDN (hostname.domain.com).
m. Press the “Add” button and press “OK”.
n. Press the “Enroll” button.
3. Export the needed certificates
a. Both the newly added certificate and root certificates need to be exported.
b. Right-click on the certificate, select “All Tasks”, then click “Export”.
c. On the Export Certificate Wizard Welcome page, press “Next”
d. Select “Yes, export the private key” and press “Next”.
e. On the Export File Format screen, make sure the file format is “PKCS #12 (.PFX)”
and press “Next”.
f. On the Security screen, give the file a secure password. This will be used when
importing the certificate into the Mac.
g. On the File to Export page, give the certificate a file name and press “Next”.
h. Finally, click “Finish” to close the wizard, and “OK” in any dialog boxes that
appear.
i. Copy the certificate(s) to the Mac.
4. Import the certificates into the System Keychain
a. As an administrator, open the KeyChain application on the Mac.
i. Press Command + Space bar and type Keychain
b. Browse to the System keychain.
c. Go to File -> Import Items
d. Select the .pfx file from the previous step and press “Open”
e. On the Keychain Access popup, allow access to modify the System keychain by
entering the administrator’s password.
f. The next pop up window will be the password for the certificate. Enter the
password used in the previous step here.
g. Once the certificate(s) are loaded ensure they are trusted by all users and
processes. Right-click on the certificate and select “Get Info”.
h. Expand “Trust” and change “When using this certificate:” to “Always Trust”.
5. Ensure GlobalProtect has access
a. Expand the computer certificate and right-click on the private key.
b. Click “Get Info”
c. Go to the “Access Control” tab.
d. Press the “+” key.
e. On the Pop up, press “Command + Shift + G” to enter the path directly.
f. Enter the path of /Applications/GlobalProtect.app/Contents/Resources and
press “Go”.
g. In the right pane, scroll to the end and find PanGPS in the list of resources.
h. Click “Save Changes” and enter the Administrator’s password in the popup.

Re: Mac computer GlobalProtect with Computer Cert How To

Namalw — Thu, 30 Apr 2020 23:50:24 GMT

Hi @ebrookman

Thanks for the instructions, I followed the instructions as below but GP client MAC complains "client certificate not found"

Certificate auth works fine on a windows machine and certificate lookup is set to 'machine store" in GP portal. Any ideas for troubleshooting?

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Mac computer GlobalProtect with Computer Cert How To

Re: Mac computer GlobalProtect with Computer Cert How To