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
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
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:
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.
With best regards,
Fred http://qxork.com
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 :)
Marius
With best regards,
Fred http://qxork.com
This might also be of use if bandwidth is an issue:
http://jcs.org/notaweblog/2010/04/11/properly_stopping_a_sip_flood/
Rgds,
Mark
On Thu, Nov 18, 2010 at 1:57 PM, marius zbihlei marius.zbihlei@1and1.rowrote:
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:
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 :)
Marius
With best regards,
Fred http://qxork.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
Thanks, I read it in the past, I added a note about it and mentioned that one can use sl_send_reply("200", "OK") config for a similar solution.
Cheers, Daniel
On 11/18/10 3:44 PM, Mark R wrote:
This might also be of use if bandwidth is an issue:
http://jcs.org/notaweblog/2010/04/11/properly_stopping_a_sip_flood/
Rgds,
Mark
On Thu, Nov 18, 2010 at 1:57 PM, marius zbihlei <marius.zbihlei@1and1.ro mailto:marius.zbihlei@1and1.ro> 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 <http://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 :) Marius With best regards, Fred http://qxork.com _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org <mailto:sr-users@lists.sip-router.org> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
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
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
2010/11/18 Daniel-Constantin Mierla miconda@gmail.com:
You can read it at: * http://asipto.com/u/i
Hope is going to be useful for many of you!
Good article :)
Thanks Daniel...Very nice article!!!
2010/11/18 Daniel-Constantin Mierla miconda@gmail.com:
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
-- 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
-
Daniel-Constantin Mierla -
Danny Dias -
Fred Posner -
Iñaki Baz Castillo -
marius zbihlei -
Mark R