[Freeswitch-users] remove in local SDP word FREESWITCH

Dmitry Lysenko dvl36.ripe.nick at gmail.com
Mon Jun 24 07:58:59 MSD 2013 

This bruteforce approach required even more resources than intelligent one.
I mean resources required for creating attacking network. First of all
someone should write this bot, debug(!) it, then apply it to controlled
botnet, that should be created before attack. That isn't so simple IMO.
And even scanning of IP for non-standard port numbers can be detected by
target system with appropriate action.

Dmitry.


2013/6/23 Steven Ayre <steveayre at gmail.com>

> Except the approach of a bot trying known exploits is automated. It
> doesn't take any effort of the hacker's time. It's not on his machine so
> doesn't even use his resources (time/CPU/bandwidth). It doesn't even need
> to check what software is running, simply trying everything in the book is
> sufficient. And that could be done in a couple of minutes.
>
> -Steve
>
>
>
> On 23 June 2013 15:45, Dmitry Lysenko <dvl36.ripe.nick at gmail.com> wrote:
>
>> The more work should be done by hacker, the more secure system is.
>> So, "security by obscurity" is working, not so good, but thousands of
>> years.
>>
>>
>> 2013/6/21 Steven Ayre <steveayre at gmail.com>
>>
>>> 2) *Security trough obscurity != security* its always better than
>>>> nothing. " hey you don't need to guess the
>>>> the software I'm using , I'm giving the info for free just find an
>>>> entry point  and you got it ...."
>>>
>>>
>>> Actually I'd argue the opposite. Security through obscurity often makes
>>> people assume they're secure and therefore neglect securing their systems
>>> in the places that actually matter.
>>>
>>> The only argument I can really see of hiding that you're running
>>> $version of $product is that an bug in that $version means an exploit
>>> exists.
>>>
>>> If that's the case then you need to upgrade to a patched copy of
>>> $product - you can NOT rely on the fact that people will not realise that
>>> they can use the exploit because you're hiding what you're running.
>>>
>>> The flaw still exists and attackers might either a) guess you're using
>>> $product and try the exploit anyway or b) have their bot just randomly try
>>> every exploit in the book against you until one works in which case they
>>> don't even need to know you're using $product.
>>>
>>> The things that matte are actually verifying your authentication is
>>> working correctly, you're running the latest software, you're following
>>> software updates / security announcements, etc.
>>>
>>> Besides even when $product/$version are hidden they can often be found
>>> through fingerprinting by looking at differing behaviour between different
>>> products and within a product between versions.
>>>
>>> -Steve
>>>
>>>
>>>
>>>
>>> On 21 June 2013 07:59, Antonio Teixeira <eagle.antonio at gmail.com> wrote:
>>>
>>>>  @Ken
>>>> I think we need to drop into the real world...
>>>>
>>>> 1) Ok .,... Don't forget to say thanks to Debian , CentOs , Fedora ,
>>>> PHP , Python , Microsoft , all the authors of the OpenSource Libs , the
>>>> creator of Make , the creator of the IDE that the Dev team uses ,  etc etc
>>>> when you deliver the next project to your client ...
>>>>
>>>> 2)
>>>> *Security trough obscurity != security* its always better than
>>>> nothing. " hey you don't need to guess the
>>>> the software I'm using , I'm giving the info for free just find an
>>>> entry point  and you got it ...."
>>>>
>>>> I could also imagine you agree with showing the version of the software
>>>> in the HTPP headers (stuff that happens on some webservers/libs ( from my
>>>> ming i can recall Django?!).
>>>>
>>>> 3)
>>>> The clients pays it doesn't really care about what software you use (
>>>> unless he fears some patent infringement) he wants results.
>>>>
>>>> 4)
>>>> No , Compliance could be internal or external the end-client could
>>>> simply say "i don't want the freeswitch brand".
>>>>
>>>>
>>>> ---- ///// ----
>>>> @all
>>>> I don't know you guys but my daily work is developing software for some
>>>> fairly large financial institutions and sincerely i think you are all over
>>>> reacting to this thing.
>>>> Yes if you open-source something you will get part of your software
>>>> stolen , changed or use in a way you were not expecting and not given
>>>> credit for , that's life .If you don't want it , close the source , resell
>>>> it , ask for NDA's , etc.
>>>> In my daily work me and my collegues use alot of open source ( contrary
>>>> to the popular belief) , closed source and everything in between and you
>>>> don't expect a public statement thanking anyone for anything.
>>>>
>>>> This is the way life works and with open-source this is our current
>>>> world ( i think the FS Team could even offer a fully custom branded
>>>> solution) so it could help monetize the project.
>>>>
>>>> And before you start thinking yes i bought G729 licenses , the FS Book
>>>> even before it was out and no to many miles between me and Gluecon , yes i
>>>> know airplanes exist :D.
>>>>
>>>> P.S - I Also assume that you all as sysadmins once found a problem that
>>>> a blogger may have solved and on your final report to the administration
>>>> you didn't wrote " problem solved by Blogger XXXXXX"....
>>>>
>>>> And never forget he is just the mailman sometimes the boss wants
>>>> something ( even if not morally correct ) and you have to do it.
>>>> But the point raised by Anthony regarding the SDP "freeswitch flag" is
>>>> important and you be featured on the wiki :)
>>>>
>>>> Antonio Teixeira
>>>>
>>>>
>>>>
>>>> On 6/19/13 3:49 PM, Ken Rice wrote:
>>>>
>>>> Ok... Lets look at these...
>>>>
>>>> Branding... I don't want to show people that I'm using F/OSS software for
>>>> running my for profit business so I can tell them I'm using either
>>>> ${some_comercial_platform} or ${we_developed_this_ourselves}
>>>>
>>>> Security/Security Requirements - Security throught obscurity != security...
>>>>
>>>> Client Requirements - That's a new one one... Unless client is <see
>>>> branding>
>>>>
>>>> Compliance - isnt this the same thing as see security
>>>>
>>>>
>>>> On 6/19/13 8:44 AM, "Antonio Teixeira" <eagle.antonio at gmail.com> <eagle.antonio at gmail.com> wrote:
>>>>
>>>>
>>>>  I could think off
>>>>
>>>> Branding
>>>> Security
>>>> Client Requirements
>>>> Security Requirements
>>>> Compliance
>>>>
>>>>
>>>> On 6/19/13 2:37 PM, Michael Jerris wrote:
>>>>
>>>>  Why would you want to do that?
>>>>
>>>> On Jun 19, 2013, at 9:28 AM, Abdullah <abdullah at smonte.com> <abdullah at smonte.com> wrote:
>>>>
>>>>
>>>>  HI ALL ,
>>>>
>>>> please help me ,how to change or remove o=*"FreeSWITCH"* in free switch Cli
>>>> Log .
>>>>
>>>> any idea ??
>>>>
>>>>
>>>>
>>>> o=FreeSWITCH 1369449071 1369449072 IN IP4 10.10.50.1
>>>>    s=FreeSWITCH
>>>>    c=IN IP4 10.10.50.1
>>>>
>>>>  _________________________________________________________________________
>>>> Professional FreeSWITCH Consulting Services:consulting at freeswitch.orghttp://www.freeswitchsolutions.com
>>>>
>>>> FreeSWITCH-powered IP PBX: The CudaTel Communication Server
>>>>
>>>> Official FreeSWITCH Siteshttp://www.freeswitch.orghttp://wiki.freeswitch.orghttp://www.cluecon.com
>>>>
>>>> FreeSWITCH-users mailing listFreeSWITCH-users at lists.freeswitch.orghttp://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-usershttp://www.freeswitch.org
>>>>
>>>>  _________________________________________________________________________
>>>> Professional FreeSWITCH Consulting Services:consulting at freeswitch.orghttp://www.freeswitchsolutions.com
>>>>
>>>> FreeSWITCH-powered IP PBX: The CudaTel Communication Server
>>>>
>>>> Official FreeSWITCH Siteshttp://www.freeswitch.orghttp://wiki.freeswitch.orghttp://www.cluecon.com
>>>>
>>>> FreeSWITCH-users mailing listFreeSWITCH-users at lists.freeswitch.orghttp://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-usershttp://www.freeswitch.org
>>>>
>>>>
>>>>
>>>>
>>>> _________________________________________________________________________
>>>> Professional FreeSWITCH Consulting Services:
>>>> consulting at freeswitch.org
>>>> http://www.freeswitchsolutions.com
>>>>
>>>> 
>>>> 
>>>>
>>>> Official FreeSWITCH Sites
>>>> http://www.freeswitch.org
>>>> http://wiki.freeswitch.org
>>>> http://www.cluecon.com
>>>>
>>>> FreeSWITCH-users mailing list
>>>> FreeSWITCH-users at lists.freeswitch.org
>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>> UNSUBSCRIBE:
>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>> http://www.freeswitch.org
>>>>
>>>>
>>>
>>> _________________________________________________________________________
>>> Professional FreeSWITCH Consulting Services:
>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>>
>>> 
>>> 
>>>
>>> Official FreeSWITCH Sites
>>> http://www.freeswitch.org
>>> http://wiki.freeswitch.org
>>> http://www.cluecon.com
>>>
>>> FreeSWITCH-users mailing list
>>> FreeSWITCH-users at lists.freeswitch.org
>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>>> http://www.freeswitch.org
>>>
>>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://wiki.freeswitch.org
>> http://www.cluecon.com
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
>>
>>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
>
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