[Snort-users] snort 2.8.5.3 with react keyword not sending msg to browser

RMS, Admin Admin.RMS at ...14841...
Tue Apr 27 10:53:06 EDT 2010


Oui :

ERROR: /etc/snort_inline/rules/local.rules(8): invalid react modifier: proxy 8000
A+
alexandre

-----Message d'origine-----
De : rmkml [mailto:rmkml at ...953...]
Envoyé : mardi 27 avril 2010 15:57
À : RMS, Admin
Cc : rmkml at ...953...
Objet : Re: [Snort-users] snort 2.8.5.3 with react keyword not sending msg to browser

heu petite question, tu as la même erreur si tu mets un autre port dans l'option proxy svp?
car par défaut c'est le port 8080 qui est dans le code de l'option proxy...
a+
Rmkml


On Tue, 27 Apr 2010, rmkml wrote:

> Bonjour,
> Je t'écrit en direct car le Français est plus facile pour moi.
> Peut être quelques infos utiles dans ses liens pour toi:
> http://snortattack.org/node/265
> http://cvs.snort.org/viewcvs.cgi/*checkout*/snort/Attic/sp_react.c?rev=1.10&sortby=rev
> Ca ne fonctionne pas du tout ou tu cherches à optimiser? (car je crois qu'il
> te manque dans tes rules snort: la direction et pas <>, puis le
> flow:to_server...)
> a+
> Rmkml
>
>
> On Tue, 27 Apr 2010, Joel Esler wrote:
>
>> I don't know, I don't run Snort on Windows. I don't run the react keyword.
>>  I was basically saying that your format is correct in your rule, maybe
>> someone else
>> can pipe in and give you an opinion as well.
>> Joel
>>
>> On Tue, Apr 27, 2010 at 9:16 AM, RMS, Admin <Admin.RMS at ...14841...> wrote:
>>
>>       Is it working on Windows as well as on Linux (idem for Mozilla and
>> Internet Explorer) ?
>>       What kind of message is supposed to appear on client Web browser
>> (html, pop-up, ...) ?
>>       Thanks,
>>       Alexandre
>>
>>
>>
>>       De : Joel Esler [mailto:jesler at ...1935...]
>>       Envoyé : mardi 27 avril 2010 15:11
>>       À : RMS, Admin
>>       Cc : Snort Users
>>
>>
>> Objet : Re: [Snort-users] snort 2.8.5.3 with react keyword not sending msg
>> to browser
>>
>>
>>
>> /** please make sure you cc the snort-users group **/
>>
>>
>>
>> It looks like you have the field typed correctly, I am not sure why Snort
>> isn't accepting it.
>>
>>
>>
>> Joel
>>
>> On Tue, Apr 27, 2010 at 9:08 AM, RMS, Admin <Admin.RMS at ...14841...> wrote:
>>
>> Hello Joel,
>>
>>
>>
>> Thanks for your answer.
>>
>>
>>
>> Did you build Snort with --enable-react at ./configure time?
>>
>> è Yes, I did, and no error at ./configure, make, make install time
>>
>>
>>
>> Br,
>>
>> Alexandre
>>
>>
>>
>>
>>
>> De : Joel Esler [mailto:jesler at ...1935...]
>> Envoyé : mardi 27 avril 2010 14:52
>> À : RMS, Admin
>> Cc : snort-users at lists.sourceforge.net
>> Objet : Re: [Snort-users] snort 2.8.5.3 with react keyword not sending msg
>> to browser
>>
>>
>>
>> Did you build Snort with --enable-react at ./configure time?
>>
>>
>>
>> Joel
>>
>>
>>
>> On Apr 27, 2010, at 7:26 AM, RMS, Admin wrote:
>>
>>
>>
>> Hello,
>>
>> I'm using snort 2.8.5.3 inline, and i try to set up a msg with the react
>> keyword for users (ip) which trigger the following alert :
>>
>> alert tcp any any <> $EXTERNAL_NET 80 (content:"GET"; \
>> msg:"Notforchildren!";sid:111000101;react:block, msg;)
>>
>> The alert is seen in the snort log, but not in the user's browser.
>> (I suppose that the content of the msg send to the browser is
>> "Notforchildren!")
>>
>> Then, I'v tried with
>>
>> alert tcp any any <> $EXTERNAL_NET 80 (content:"GET"; \
>> msg:"Notforchildren!";sid:111000101;react:block, msg, proxy 8080;)
>>
>> I don't understand the modifier "proxy". It is a local port which send the
>> msg to user or is it the web proxy ?
>>
>> And the following error occurs when starting snort :
>>
>> ERROR: /etc/snort_inline/rules/local.rules(7): invalid react modifier:
>> proxy 8080
>>
>> Question : How snort send message to browser ? Does it with any Os or
>> browser (IE, Firefox...) ?
>>
>> Thanks in advance,
>>
>> Al.

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