Hello -

I am in the process of validating some security settings for Zeppelin
(0.7.3 w/ HDP 2.6.3)

According to:
https://zeppelin.apache.org/docs/0.7.0/install/configuration.html
zeppelin.server.allowed.origins can be set to only allow requests that is
coming from a specific host.

I am not sure if I am using this correctly.

My HDP system is:  my.system.com,
running http://my.system.com:9995 - in zeppelin

I've updated the advanced zeppelin-config with :
zeppelin.server.allowed.origins=https://my.system.com

----------
After restarting - to test:

Use curl from my machine:  mydesktop.system.com

1. Get a JSESSIONID:
curl -i -X POST "http://my.system.com:9995/api/login?password=
<passwd>&userName=<uid>"
   -> retrieve JSESSIONID from cookie.

2. Try a query against api/notebook. (I can get at the security
curl -v -b 'JSESSIONID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx; Path=/;
HttpOnly'  http://my.system.com:9995/api/notebook
     -> This works ...  should it?

3. Attempt to add random headers...
curl -v -b 'JSESSIONID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx; Path=/;
HttpOnly'  -H 'Host: bogus1.referer.com' -H 'Origin: bogus2.referer.com' -H
'Connection: keep-alive' -H 'Referer: http://bogus3.referer.com' http://
my.system.com:9995/api/notebook

     -> This still works... should it ?

The verbose output shows that Host, Referer and Origin has been passed, yet
I am not seeing any sort of blocking...

> Host: bogus1.referer.com
> User-Agent: curl/7.54.0
> Accept: */*
> Cookie: JSESSIONID=<sid>; Path=/; HttpOnly
> Origin: bogus2.referer.com
> Connection: keep-alive
> Referer: http://bogus3.referer.com

< HTTP/1.1 200 OK
< Date: Monday, June 25, 2018 3:16:32 PM PDT
< Access-Control-Allow-Origin:
< Access-Control-Allow-Credentials: true
< Access-Control-Allow-Headers: authorization,Content-Type
< Access-Control-Allow-Methods: POST, GET, OPTIONS, PUT, HEAD, DELETE
< X-FRAME-OPTIONS: SAMEORIGIN
< X-XSS-Protection: 1
< Content-Type: application/json
< Date: Mon, 25 Jun 2018 22:16:32 GMT
< Content-Length: 75
< Server: Jetty(9.2.15.v20160210)
<


Thoughts?

Ying

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