It looks like a new way to hijack the system.
Come from around 75 different IP addresses.
_______________________________
Best Regards Andriy Pachkovskyy
Mob. tel. +48504122924
Mob. tel. +380679421834
Sip tel. [email protected]
Email: [email protected]
Jabber: [email protected]
On Sun, 8 Dec 2024 13:09:58 -0500 Alex Balashov <[email protected]>
wrote:
Hello,
It's not clear that OpenSIPS really requires 'protection' from malformed SIP messages. They don't do any obvious harm.
More generally, there's no way to use the parser to validate SIP messages for morphological correctness without... using the
parser to validate them. How would you know if they're bad messages "a priori"?
If your goal is to block source IPs which generate a large amount of these invalid messages, that's another matter. A log
analysis-triggered automatic firewalling tool such as Fail2ban[1], perhaps in
concert with a system like APIBAN, might be your
best bet.
-- Alex
[1] https://github.com/fail2ban/fail2ban
On Dec 8, 2024, at 1:06 pm, APach via Users <[email protected]> wrote:
Dear Team.
How to protect the server from messages like this & how to block them?
Dec 8 19:45:40 mx [1279]: INFO:core:parse_first_line: method not followed by SP
Dec 8 19:45:40 mx [1279]: INFO:core:parse_first_line: bad message
Dec 8 19:45:40 mx [1279]: ERROR:core:parse_msg:
message=<S.#002O#033`\G#031W#003RYRSZTT#014-#020C3#017\#013k\G-X#032SZin:E6T#0349&u#013yO`M[#015^#036@mzKXW#022#005/,Y#011#025GD[}#007">
Dec 8 19:45:40 mx /usr/sbin/opensips[1279]: ERROR:core:receive_msg: Unable to
parse msg received from [147.45.78.98:11072]
_______________________________
Best Regards Andriy Pachkovskyy
Mob. tel. +48504122924
Mob. tel. +380679421834
Sip tel. [email protected]
Email: [email protected]
Jabber: [email protected]
<ps-error2024-12-08 19-57-31.png>_______________________________________________
Users mailing list
[email protected]
http://lists.opensips.org/cgi-bin/mailman/listinfo/users
--
Alex Balashov
Principal Consultant
Evariste Systems LLC
Web: https://evaristesys.com
Tel: +1-706-510-6800
_______________________________________________
Users mailing list
[email protected]
http://lists.opensips.org/cgi-bin/mailman/listinfo/users
