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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DISPATCH-1388) Authorization doc fails to describe vhost abstraction clearly
Date Thu, 18 Jul 2019 16:29:00 GMT

    [ https://issues.apache.org/jira/browse/DISPATCH-1388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16888131#comment-16888131

ASF GitHub Bot commented on DISPATCH-1388:

ChugR commented on pull request #540: DISPATCH-1388: Clarify policy restrictions defined by
vhost objects
URL: https://github.com/apache/qpid-dispatch/pull/540
   State more clearly that policy restrictions are applied to client requests
   at network ingress only.
   As I read the document now it is unclear if a policy restriction defined
   by a vhost would be applied to a request originated at a distant point in
   the network. Suppose I have two vhosts, vhost1 and vhost2, and two users,
   Alice and Bob. Vhost policy is enabled for address "orders":
     |"orders" | vhost1 | vhost2 |
     | Alice   | allow  | deny   |
     | Bob     | deny   | allow  |
   If Alice creates a receiver for "orders" on vhost1 and Bob creates a
   sender for "orders" on vhost2 then the router network will Bob's
   sender to send messages to Alice's receiver. This is allowed even though
   user Alice is denied access to that address on vhost2 and user Bob
   is denied access on vhost1.
   There are separate namespaces for users on each vhost. What user Alice
   does on vhost1 is unaffected by the namespace restrictions applied to
   vhost2. Alice's identity is not propagated to vhost2 for subsequent
   authorization checks.
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> Authorization doc fails to describe vhost abstraction clearly
> -------------------------------------------------------------
>                 Key: DISPATCH-1388
>                 URL: https://issues.apache.org/jira/browse/DISPATCH-1388
>             Project: Qpid Dispatch
>          Issue Type: Improvement
>          Components: Documentation
>    Affects Versions: 1.8.0
>            Reporter: Chuck Rolke
>            Assignee: Chuck Rolke
>            Priority: Major
> Security documentation misses an important point when describing policy and how policy
is effected by vhost settings: Access policy is applied at the point of ingress to a router
network. Once access is granted to a resource then all resources with that name anywhere in
the network are accessible.
> Access restrictions are specified in a policy vhost object. The vhost contains the restrictions
that get applied to a connection when the connection is established. Reading the doc it sounds
as if there are vhost objects that may contain addresses somewhere in the router. That conceptual
model is the issue in the doc that needs to be fixed.
> Methods for Specifying Vhost Policy Source and Target Addresses is a good example. In
the table the first item is titled _Allow all users in the user group to access all source
or target addresses on the vhost_ . In reality the addresses are not _on the vhost but are
in the router network_.
> Throughout the document the text "on a vhost" could be changed to "through a vhost" or
"specified by a vhost", or could be removed entirely. 
> h4.  

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