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License: GNU General Public License v3.0
Block unwanted registrations from SIP Scan attack using Asterisk AMI and iptables
License: GNU General Public License v3.0
Hi,
I've just installed an Asterisk 18, to test SIPBAN and after several registration failures no IP addresses are blocked:
[Jun 23 10:22:21] NOTICE[3606] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '<sip:XXXX@XXXXXXXX>' failed for 'YYYYYYYY:5062' (callid: [email protected]) - Failed to authenticate
After enabling AMI debug the events reported From Asterisk are ChallengeResponseFailed and I can't see this type of events on the code:
Event: ChallengeResponseFailed
Privilege: security,all
SequenceNumber: 67
File: manager.c
Line: 1864
Func: manager_default_msg_cb
EventTV: 2021-06-23T10:22:21.751+0200
Severity: Error
Service: PJSIP
EventVersion: 1
AccountID: XXXX
SessionID: [email protected]
LocalAddress: IPV4/UDP/XXXXXXXX/5060
RemoteAddress: IPV4/UDP/YYYYYYYY/5062
Challenge: 1624436541/3c34d6746cc5187774c60cd18cf793ce
Response: ffc167de33082dadd87a6479d9795c3f
ExpectedResponse:
I don't know if the Asterisk team ha changed anything but inside the Asterisk documentation, this type of event is defined since Asterisk 13:
https://wiki.asterisk.org/wiki/display/AST/Asterisk+13+ManagerEvent_ChallengeResponseFailed
Could you please update the script?
Thank you
Hello,
I'm using fail2ban and sipban for asterisk on a server.
Fail2ban works fine, but sipban, when starting, does not put it's "$ipt -t filter -I INPUT -p udp --dport 5060 -j $Config{'iptables.chain'}" rule in INPUT chain.
So I have , when doing iptables -L -nv ๐
Chain INPUT (policy ACCEPT 805K packets, 149M bytes)
pkts bytes target prot opt in out source destination
20688 11M f2b-asterisk-udp udp -- * * 0.0.0.0/0 0.0.0.0/0 multiport dports 5060
0 0 f2b-asterisk-tcp tcp -- * * 0.0.0.0/0 0.0.0.0/0 multiport dports 5060
chain "sipban-udp" is correctly created :
Chain sipban-udp (0 references)
pkts bytes target prot opt in out source destination
0 0 REJECT all -- * * 54.36.166.196 0.0.0.0/0 reject-with icmp-port-unreachable
0 0 REJECT all -- * * 62.4.14.74 0.0.0.0/0 reject-with icmp-port-unreachable
0 0 REJECT all -- * * 80.94.93.3 0.0.0.0/0 reject-with icmp-port-unreachable
0 0 REJECT all -- * * 80.94.93.32 0.0.0.0/0 reject-with icmp-port-unreachable
0 0 REJECT all -- * * 37.120.155.138 0.0.0.0/0 reject-with icmp-port-unreachable
0 0 REJECT all -- * * 40.76.244.210 0.0.0.0/0 reject-with icmp-port-unreachable
0 0 RETURN all -- * * 0.0.0.0/0 0.0.0.0/0
I'm going to do more tests in the morning.
Regards
Hi, I'm doing tests and the service fails
sipban.service - SIP Ban Service
Loaded: loaded (/etc/systemd/system/sipban.service; enabled; vendor preset: disabled)
Active: activating (auto-restart) (Result: exit-code) since Mon 2023-05-08 11:24:58 CST; 162ms ago
Process: 30137 ExecStart=/usr/local/bin/sipban.pl (code=exited, status=2)
Main PID: 30137 (code=exited, status=2)
/etc/systemd/system/sipban.service:6: Failed to parse service type, ignoring: service
I made the change in this line:
Type=service
to
Type=notify
but without success
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