[Freeswitch-users] Fail to ban rule for detecting INVITES with no challenge

[Ítalo Rossi]

Version?

I'm almost sure this is already implemented in master.
Em 12/03/2015 13:43, "Kyle King" <kyle.king at quentustech.com> escreveu:

> Have you tried mod_fail2ban?
>
> On March 12, 2015 12:28:16 PM EDT, Peter Steinbach <lists at telefaks.de>
> wrote:
>>
>> Hello,
>>
>> we receive a number of Invites from certain IPs, who want to break into
>> our system and call external premium rate numbers
>> Unwanted registers we can block already, but we still have the issue to
>> block specific invites from fraudulent IPs inside the iptables firewall.
>>
>> In the Freeswitch log we see:
>> 2015-03-12 16:54:38.381552 [NOTICE] switch_channel.c:1055 New Channel
>> sofia/internal/149 at 10.11.12.13 [167bb9ee-c8d0-11e4-9f31-b39e581405c5]
>> 2015-03-12 16:54:38.381552 [DEBUG] switch_core_session.c:1061 Send signal
>> sofia/internal/149 at 10.11.12.13 [BREAK]
>> 2015-03-12 16:54:38.381552 [DEBUG] switch_core_session.c:1061 Send signal
>> sofia/internal/149 at 10.11.12.13 [BREAK]
>> 2015-03-12 16:54:38.381552 [DEBUG] switch_core_state_machine.c:472 (
>> sofia/internal/149 at 10.11.12.13) Running State Change CS_NEW
>> 2015-03-12 16:54:38.381552 [DEBUG] sofia.c:8841
>> sofia/internal/149 at 10.11.12.13 receiving invite from 155.94.64.26:5076
>> version: 1.5.15b git 82f267a 2015-02-16 22:59:55Z 64bit
>> 2015-03-12 16:54:38.381552 [DEBUG] sofia.c:9008 IP 15.194.164.26
>> Rejected by acl "domains". Falling back to Digest auth.
>> 2015-03-12 16:54:38.441582 [DEBUG] switch_core_state_machine.c:491 (
>> sofia/internal/149 at 10.11.12.13) State NEW
>> 2015-03-12 16:54:38.441582 [DEBUG] switch_core_session.c:1061 Send signal
>> sofia/internal/149 at 10.11.12.13 [BREAK]
>> 2015-03-12 16:54:38.441582 [DEBUG] sofia.c:2067 detaching session
>> 167bb9ee-c8d0-11e4-9f31-b39e581405c5
>> 2015-03-12 16:54:48.461568 [WARNING] switch_core_state_machine.c:572
>> 167bb9ee-c8d0-11e4-9f31-b39e581405c5 sofia/internal/149 at 10.11.12.13
>> Abandoned
>>
>> The fraudulent IP here is 15.194.164.26 (anonymized of course). The IP
>> 10.11.12.13 is the (anonymized) IP of our server.
>>
>> The point here is: 15.194.164.26 is sending an INVITE, Freeswitch then
>> sends "authentication required". Freeswitch then logs this entry with
>> "Abandoned" (see last line above) and that's it.
>>
>> So Is there any way to make Freeswitch show up a log line with the
>> fraudulent IP 15.194.164.26 and some text like "abandonned"?
>> Example for extending a current log line
>>     2015-03-12 16:54:48.461568 [WARNING] switch_core_state_machine.c:572
>> 167bb9ee-c8d0-11e4-9f31-b39e581405c5 sofia/internal/149 at 10.11.12.13
>> Abandoned for IP 15.194.164.26
>> This would enable us to process this entry with fail2ban and block this
>> IP in the Firewall.
>>
>> Any other hint is welcome.
>>
>> --
>> With kind regards
>> Marvin Keil
>>
>> Telefaks Services GmbHmailto:lists <lists> (att) telefaks.de
>> Internet: www.telefaks.de
>>
>> ------------------------------
>>
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>> http://www.freeswitchsolutions.com
>>
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>> http://confluence.freeswitch.org
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>>
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>>
>>
> --
> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>
> _________________________________________________________________________
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> http://www.freeswitchsolutions.com
>
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>
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