I set up an Azure Key Vault with a private endpoint, and I've also configured the private DNS links. When pinging the Key Vault's URL (example-kv.vault.azure.net) from my workplace or data center, it resolves correctly. However, I run into a 403 Forbidden error when trying to access the Key Vault URL directly from those locations. I'm not sure what's missing in my configuration. The error I receive is:
# 403 - Forbidden: Access is denied.
# You do not have permission to view this directory or page using the credentials that you supplied.
4 Answers
Getting a 403 is typical when trying to access the Key Vault from a web browser. You’ll need to use a service principal or user to authenticate against Entra ID to gain access.
Accessing the Key Vault directly from a browser won't work. You should use tools like Azure CLI or PowerShell to list secrets. Just make sure you have the right permissions set up, either through access policies or RBAC roles.
Remember, you need to provide an access token to get any content from the Key Vault. Browsers usually try to access resources anonymously, which leads to that 403 error.
Have you checked your RBAC permissions? You might need roles like Key Vault Administrator to manage and view keys. Also, ensure you’re hitting the right endpoint; you often need to use specific sub-URIs like /health or keys instead of the main URL.
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