Enabling a firewall for the customer-managed key

You can apply an extra layer of security to your customer-managed key by enabling a firewall in the Azure Key Vault, and only allowing UiPath services to access the CMK.

To do so, access the Networking tab of your Azure Key Vault, and configure the following:

1. In the Firewalls and virtual networks section, select Allow public access from specific networks and IP addresses.

2. In the Firewall section, add these UiPath static IPs:

   • 20.213.69.140/30

   • 20.92.42.116/30

   • 20.220.159.8/30

   • 20.104.134.160/30

   • 20.239.121.152/30

   • 20.232.224.12/30

   • 20.78.114.120/30

   • 104.215.9.124/30

   • 20.166.153.132/30

   • 20.198.150.140/30

   • 20.23.210.168/30

   • 20.66.65.144/30

   • 20.219.182.96/30

   • 52.140.57.140/30

   • 20.90.169.148/30

   • 51.142.146.56/30

Sample error for non-allow-listed IP addresses

If you have enabled a firewall, but have not added the previous IP addresses to the allow list, you are returned an error in the Customer managed key configuration. This is what it looks like in the browser's debugging console (F12):

Client address is not authorized and caller is not a trusted service.\r\nClient address: 20.78.114.120\r\nCaller: appid=7a47c7ed-2f6f-43e3-a701-c4b0204b7f02;oid=a31db968-dd56-4ddd-95cc-e7dddd0562d1;iss=https://sts.windows.net/d8353d2a-b153-4d17-8827-902c51f72357/\r\nVault: plt-nst-config-kv;location=northeurope\nStatus: 403 (Forbidden)

In the example, the missing IP is 20.78.114.120. To overcome the issue, add the IP in the Firewall section mentioned in Step 2.