Close proxy API access
Hi community,
Grafana 8.2.5
We have a Grafana system 8.2.5. He had a security audit, where the API access is criticized. We have enabled an anonymous acess for users without login.
[auth.anonymous]
enabled =true
org_name = IT.NRW
org_role = Viewer
When I try to access the Grafana like:
curl http://<fqdn>:3000/api/datasources -> {"message":"Permission denied"}
curl http://admin:<password>@<fqdn>:3000/api/datasources -> a valid json object with the datasource etc....
But the security audit found also the access to the datasource proxy? API.
curl http://<fqdn>:3000/api/datasources/proxy/3/query?db=<db>\&q=SELECT+*+FROM+<ts>\&epoch=ms
So I can query with or without credentials ALWAYS the API.
Security audit: a Denial of Service (DoS) is possible, maybe some SQL injection. I don't want discuss this topic here.
I have to close the access through the API. At least from other network segments.
Any hints?
Thanks in advance.
I'm a grafana beginner!
I do not complain, the security audit listed the two topics (DoS/SQL injection). I didn't found any configuration possibilities (grafana.ini) about closing the proxy API interface (only data_source_whitelist-ing).
So, I added some rules into the NGIX config in front of the grafana server to forbid the proxy API access -> throw 40x error. Now the web UI is not able anymore to fetch and render the data in the UI.
My conclusion: