Hi Jakub,

We will take a look with regard to making the query behaviour similar to
the C++ broker.

Robbie


On 29 March 2013 14:25, Jakub Scholz <ja...@scholz.cz> wrote:

> Hi,
>
> I noticed that the QueueQuery and ExchangeQuery commands (AMQP 0.10) are
> not exactly protected using the ACL rules on the Java broker. Once the user
> is allowed to access the virtual host in the ACLs, he seems to be able to
> send the QueueQuery and ExchangeQuery requests and receive the responses
> without any limitation. While this isn't exactly a security hole, it allows
> everyone to very easily find out what queues and exchanges exist on the
> broker including some of their statistics. Depending on your queue naming,
> the client might be also able derive usernames from the queue names
> etc. (of course the client still cannot consume or publish without the
> respective ACL rules)
>
> In contrast, the C++ broker is maping the ExchangeQuery and QeueuQuery
> commands aginst the "access queue name=<queueName>" and "access exchange
> name=<exhcnageName>" ACL rules and the client is unable to find out which
> queues/exchanges exist on the broker without being really allowed to do so.
>
> Is there some way how to achieve the same in the Java broker? The "access
> queue" or "access exchange" do not seem to be supported.
>
> Do you think this is potential security issue or is it OK from your point
> of view?
>
> Thanks & Regards
> Jakub
>

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