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

RMS, Admin Admin.RMS at ...14841...
Tue Apr 27 09:16:56 EDT 2010


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...<mailto:Admin.RMS at ...14841...>> wrote:
Hello Joel,

Thanks for your answer.

Did you build Snort with --enable-react at ./configure time?

==> Yes, I did, and no error at ./configure, make, make install time

Br,
Alexandre


De : Joel Esler [mailto:jesler at ...1935...<mailto:jesler at ...1935...>]
Envoyé : mardi 27 avril 2010 14:52
À : RMS, Admin
Cc : snort-users at lists.sourceforge.net<mailto:snort-users at ...5870....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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