[Freeswitch-users] (no subject)
ssinyagin at gmail.com
Tue Oct 21 23:21:22 MSD 2014
Limit resets as soon as the call leaves the context - could that be the
On Oct 21, 2014 8:44 PM, "Kamil Nigmatullin" <kamil.nigmatullin at gmail.com>
> Dear all,
> Today we had an attack. One of our clients lost password to his SIP
> account. So with this password attackers made calls on our client's behalf
> to very expensive destinations.
> We have Opensips as a border controller and Freeswitch as a Softswitch.
> This phone was confugured for 1 concurrent line using module limit of FS.
> Howerver they somehow managed to make several concurrent calls per one
> account. On CDR's we found that there was Attended transfer. Does anybody
> knows what kind of attack was that and how I can protect us against this?
> Is it sip refer attack when attacker set REFERED BY HEADER?
> When I check if limit works whith a sipphone, I see that it worked 100%.
> Thanks in advance
> Kamil Nigmatullin
> Tel: 77272323748
> mob: 7 (707) 2517003
> Skype: kamil.nigmatullin
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> Official FreeSWITCH Sites
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
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