On 11/18/10 2:57 PM, marius zbihlei wrote:
On 11/18/2010 03:59 PM, Fred Posner wrote:
On Nov 18, 2010, at 8:49 AM, marius zbihlei wrote:
On 11/18/2010 01:58 PM, Daniel-Constantin Mierla wrote:
Hello,
during the testing period of Kamailio 3.1.0, while running it at
voipuser.org, I had the chance to watch live and analyze a SIP
scanning
attack. Yesterday I noticed another one by looking at Siremis 2.0
charts, therefore I wrote an article with some hints about what you
can
use to protect your SIP services within Kamailio configuration file.
You can read it at:
* http://asipto.com/u/i
Hope is going to be useful for many of you!
Cheers,
Daniel
Hello Daniel,
Nice read, thanks for sharing. This "friendly-scanner" messages has
really gotten out of hand lately. FYI, they are generated by a
python suite called SIPVicious (ha ha nice
pun)(http://code.google.com/p/sipvicious/) . More on this
http://blog.sipvicious.org/. The suite was developed (really really
extended the sense of the word "developed" here - as the scripts are
really basic) by a security company who trails over Europe giving
lectures on Voip security. :)
Cheers,
Marius
SIP Vicious does have a kill command... I've tried launching that on
detection with mixed results. Triggering it from a hash count might
prove better.
The kill command (actually a bug that caused a Python exception to be
raised) was fixed in a later commit :)
:-) I wouldn't expect to last too long.
I wonder what would happen to send back stateless the flood to source IP
and port.
In kamailio config would be:
$du = "sip:" + $si + ":" + $sp;
forward();
It won't cause use of many resources, maybe bandwidth.
Would I get a challenge :-) ?
Daniel
--
Daniel-Constantin Mierla
Kamailio (OpenSER) Advanced Trainings
Nov 22-25, 2010, Berlin, Germany
Jan 24-26, 2011, Irvine, CA, USA
http://www.asipto.com
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
