Scott Lawrence wrote:
> On Wed, 2008-12-17 at 10:06 -0500, Arjun Nair wrote:
>> Update:
>>
>> As per our discussion yesterday, turning off PAI authentication for
>> SUBSCRIBEs works well. The phones have no problem answering just the
>> UA (SipStatus) challenges (so, the issue is when we do a UA + Proxy
>> challenge).. I will go ahead and restrict PAI challenges to INVITEs
>> only. 
>>
>> However, there is a second problem - the recently added
>> SubscriptionAuth plugin will challenge all out-of-dialog, dialog event
>> SUBSCRIBEs. So, in-dialog subscriptions to the RLS will again face the
>> same two tier authentication problem. The options I see here are (1)
>> turn off the SubscriptionAuth plugin challenge for dialog event
>> SUBSCRIBEs, (2) In the SubscriptionAuth plugin, make a special
>> exemption for all request URI's addressed to the RLS, (3) In the RLS,
>> only check for authentication if the SUBSCRIBE does not match a known,
>> active dialog. 
> 
> What is the SubscriptionAuth plugin for?
> 

This is our answer to:

http://track.sipfoundry.org/browse/XECS-1606 - No authorization for dialog 
event subscriptions

Description:
This is a privacy issue. 
There does not seem to be authorization for dialog event package subscriptions. 
Anybody without valid account on the system can originate a dialog event 
subscription for individual user and sipX routes it to the registered phones 
unchallenged. This allows the whole world to monitor calls of any sipX user. 


Arjun
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