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MQSeries.net Forum IndexIBM MQ SecurityChannel Security

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PeterPotkay
PostPosted: Thu Jun 06, 2019 7:33 am Post subject: Reply with quote

Poobah

Joined: 15 May 2001
Posts: 7535

I have not come across a reason to not allow the Channel Initiator and thus outbound channels to run as mqm. I think there is no risk here. For outbound channels you are the initiator and you trust yourself.

Inbound channels are a completely different story. You likely do not have complete control of the partner system, so you can't trust it, so you shouldn't let inbound channels run as a highly privileged account, unless the connection has been authenticated to determine if the connection is originating from someone or something that should run as highly privileged.

Ideally you have all your inbound channels set up to run with zero access by default, and only after some level of authentication do you elevate that instance of the channel to run with an appropriate level of access.
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Vitor
PostPosted: Thu Jun 06, 2019 8:58 am Post subject: Reply with quote

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Joined: 11 Nov 2005
Posts: 25671
Location: Ohio, USA

saurabh25281 wrote:
There must be a reason why IBM documents talks about what authorizations would be required on a sender channels for non-privileged users .


Because some sites base security rules on politics not technology. I myself have worked on a site where mqm (which owned the software) wasn't allowed to run any process. For no technical reason anyone was able to articulate to me.

I repeat my earlier statement that I've never run the channels (or the queue manager come to that) as anything other than mqm.

But the situation is plausible, and IBM indicates their support for it with the documentation you mention.

saurabh25281 wrote:
We have already secured incoming connections i.e. Receiver, cluster-receiver & svrconns using ChlAuth (SSLPEERMAP) rules.


And do these run as mqm? If so, why do you consider this less risky than running the sender channels as mqm (given the receiver channels actually alter the contents of queues)?
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