Preview of Snort-dev snort pkg 1.7 alpha

jamesdean

I'm really busy, you will have to wait untill Thrusday so I can add code.

There is code I have not added that makes sure rule selection sets get saved.

So your options are; to manually add the rules to snort.conf for that interface, wait untill Thursday when I have time to code.

James

ppomes

Hi James,

Little feedback for RC2:

There is a typo error at snort_interfaces.php:337: The tab name for interfaces should be "Snort Interfaces" and not "Snort Inertfaces".
Little bug (I guess) at line 401 of the same file, when displaying the interface name in the final else: in my tests, the OPT1 interface is shown as "ARRAY", so maybe the complete "if" could be :

if (!$natent['interface'] || ($natent['interface'] == "wan"))
echo "WAN";
else if(strtolower($natent['interface']) == "lan")
echo "LAN";
else if(strtolower($natent['interface']) == "pppoe")
echo "PPPoE";
else if(strtolower($natent['interface']) == "pptp")
echo "PPTP";
else {
$ifname=strtolower($natent['interface']);
if (!empty($config['interfaces'][$ifname]['descr']))
echo strtoupper($config['interfaces'][$ifname]['descr']) ;
else
echo strtoupper($ifname);
}

And a question: if I want to use the snort thresholds, should I edit directly the config file ? I see nothing in the RC2 gui about thresholds.

Thanks a lot for this new version !

Regards,
Pierre

jamesdean

@ppomes

I released new code to fix that op1 thing RC3.

I'll update the typo thing later latter.

The threshhold.conf was removed in 2.8.5. So I removed that part of the code.
In 2.8.5 threshold options should be added to the rule itself.

For now, create a threshold.conf in the interface rule dir and edit that manually.

Thanks for the kind words

james

@ppomes:

Hi James,

Little feedback for RC2:

There is a typo error at snort_interfaces.php:337: The tab name for interfaces should be "Snort Interfaces" and not "Snort Inertfaces".

Little bug (I guess) at line 401 of the same file, when displaying the interface name in the final else: in my tests, the OPT1 interface is shown as "ARRAY", so maybe the complete "if" could be :

if (!$natent['interface'] || ($natent['interface'] == "wan"))
echo "WAN";
else if(strtolower($natent['interface']) == "lan")
echo "LAN";
else if(strtolower($natent['interface']) == "pppoe")
echo "PPPoE";
else if(strtolower($natent['interface']) == "pptp")
echo "PPTP";
else {
$ifname=strtolower($natent['interface']);
if (!empty($config['interfaces'][$ifname]['descr']))
echo strtoupper($config['interfaces'][$ifname]['descr']) ;
else
echo strtoupper($ifname);
}

And a question: if I want to use the snort thresholds, should I edit directly the config file ? I see nothing in the RC2 gui about thresholds.

Thanks a lot for this new version !

Regards,
Pierre

ppomes

Hi !

Thanks for the quick reply.

Just a remark: I just had a look in the code in git. Using natent[$interface] will show "OPTX", but not the name given to the interface (Description field), and used in dropdown lists in snort or elsewhere. This is not really important anyway, but maybe it could be better to show the same interface name everywhere ?

Pierre

jamesdean

Hummm… do you have dual wans ?

Please explain it again.

James

ppomes

James,

No dual wan, but three physical LAN (I use snort on internal devices to reduce alert verbosity)

LAN (the default)
DMZ1 (OPT1)
DMZ2 (OPT2)

In firewall rules or nat screens, these 2 other interfaces are shown as DMZ1/DMZ1 ($config['interfaces'][xxx]['descr']). In snort screens, when adding a new interface, the GUI also shows DMZ1/DMZ2 in the dropdown list to select the interface. But in the snort interface tab, with $natent['interface'], OPT1/2 is shown.

Really not an issue, it is only a "look" issue.

Pierre

jamesdean

I hear you.

I want to fallow the Interfaces drop-down menu in Pfsense.
But, If people complain, I'll change it to your suggestion.

James

@ppomes:

James,

No dual wan, but three physical LAN (I use snort on internal devices to reduce alert verbosity)

LAN (the default)

DMZ1 (OPT1)

DMZ2 (OPT2)

In firewall rules or nat screens, these 2 other interfaces are shown as DMZ1/DMZ1 ($config['interfaces'][xxx]['descr']). In snort screens, when adding a new interface, the GUI also shows DMZ1/DMZ2 in the dropdown list to select the interface. But in the snort interface tab, with $natent['interface'], OPT1/2 is shown.

Really not an issue, it is only a "look" issue.

Pierre

ppomes

Hi James,

Ok, thanks !

I installed the RC3, I think I found a little issue in the "update" tab (which was maybe there in RC2): the GUI always says the rule directory is empty, even when it is not. I checked the php code, and this messages is not conditional to a "file_exists" call.

Very very little issue ;-)

Pierre

ppomes

Another feedback, I decided to test all I could !

In my test, I have three interfaces. I activated the auto update of rules every 6 hours, and when an update is done, none of the three snort is restarting. The cron log file seems ok :

#########################
Thursday 10th of December 2009 12:03:27 AM
#########################

Removing old tmp files…
Downloading md5 file...
Done. downloading md5
Downloading md5 file...
Done. downloading md5
Downloading pfsense md5 file...
Done. downloading md5
Your rules are up to date...
You may start Snort now, check update.
You are NOT up to date...
Stopping All Snort Package services...
There is a new set of Emergingthreats rules posted. Downloading...
May take 4 to 10 min...
Done downloading Emergingthreats rules file.
Extracting rules...
May take a while...
Copying md5 sig to snort directory...
Updating Alert Messages...
Please Wait...
Your first set of rules are being copied...
May take a while...
Your first set of rules are being copied...
May take a while...
Your first set of rules are being copied...
May take a while...
Cleaning up...
The Rules update finished...
Snort has restarted with your new set of rules...

But no snort is running :

ps aux | grep snort

Nothing is system logs, so it seems the script /usr/local/pkg/snort/snort_check_for_rule_updates.php did not start anything (I mean: there is no snort startup error on logs, so I guess the script did not restart instances).

I think the following line is not correct when there is more than one interface:

exec("/bin/sh /usr/local/etc/rc.d/snort* start");

Trying "/bin/sh /usr/local/etc/rc.d/snort* start" at the shell prompt deos nothing (maybe causing "/bin/sh /usr/local/etc/rc.d/snort_0re0.sh /usr/local/etc/rc.d/snort_1re2.sh /usr/local/etc/rc.d/snort_2re1.sh start")

At the shell, the following is working :

for i in ls /usr/local/etc/rc.d/snort* do; sh $i start; done

Hope this helps !
Pierre

jamesdean

I'm on it Pierre.

Please post the Pfsense viresion you are using.

Thank you for making the snort package better.

James

@ppomes:

Another feedback, I decided to test all I could !

In my test, I have three interfaces. I activated the auto update of rules every 6 hours, and when an update is done, none of the three snort is restarting. The cron log file seems ok :

#########################
Thursday 10th of December 2009 12:03:27 AM
#########################

Removing old tmp files…
Downloading md5 file...
Done. downloading md5
Downloading md5 file...
Done. downloading md5
Downloading pfsense md5 file...
Done. downloading md5
Your rules are up to date...
You may start Snort now, check update.
You are NOT up to date...
Stopping All Snort Package services...
There is a new set of Emergingthreats rules posted. Downloading...
May take 4 to 10 min...
Done downloading Emergingthreats rules file.
Extracting rules...
May take a while...
Copying md5 sig to snort directory...
Updating Alert Messages...
Please Wait...
Your first set of rules are being copied...
May take a while...
Your first set of rules are being copied...
May take a while...
Your first set of rules are being copied...
May take a while...
Cleaning up...
The Rules update finished...
Snort has restarted with your new set of rules...

But no snort is running :

ps aux | grep snort

Nothing is system logs, so it seems the script /usr/local/pkg/snort/snort_check_for_rule_updates.php did not start anything (I mean: there is no snort startup error on logs, so I guess the script did not restart instances).

I think the following line is not correct when there is more than one interface:

exec("/bin/sh /usr/local/etc/rc.d/snort* start");

Trying "/bin/sh /usr/local/etc/rc.d/snort* start" at the shell prompt deos nothing (maybe causing "/bin/sh /usr/local/etc/rc.d/snort_0re0.sh /usr/local/etc/rc.d/snort_1re2.sh /usr/local/etc/rc.d/snort_2re1.sh start")

At the shell, the following is working :

for i in ls /usr/local/etc/rc.d/snort* do; sh $i start; done

Hope this helps !
Pierre

ppomes

@jamesdean:

I'm on it Pierre.

Please post the Pfsense viresion you are using.

Thank you for making the snort package better.

James

Hi James,

I am using 1.2.3RC3. The lines I was talking about are in /usr/local/pkg/snort/snort_check_for_rule_updates.php, in the snort package.

In the meanwhile, I did some test in the shell:

sh -x

sh /usr/local/etc/rc.d/snort* start

sh /usr/local/etc/rc.d/snort_0re0.sh /usr/local/etc/rc.d/snort_1re2.sh /usr/local/etc/rc.d/snort_2re1.sh start

So I think the problem is the one I suspected yesterday, and only affets snort installation with multi interfaces.

Hope this helps !
Pierre

ToxIcon

jamesdean how can i complete remove the snort RC, snort has 4 service listed under Status: Services
and it wont start I tried removing it from System: Package Manager it uninstall but snort is still listed in service snort and when click it open Services: Snort 2.8.4.1_7 pkg v. 1.8 RC4

jamesdean

@ToxIcon:

jamesdean how can i complete remove the snort RC, snort has 4 service listed under Status: Services
and it wont start I tried removing it from System: Package Manager it uninstall but snort is still listed in service snort and when click it open Services: Snort 2.8.4.1_7 pkg v. 1.8 RC4

Hey are you using nanobsd ?

Try reinstalling the snort package then deinstalling it now.

James

ToxIcon

james

no not using nanobsd. full install, this scrip doesn't work to enable all rules

/usr/local/bin/perl -pi -e 's/# alert/alert/g' /usr/local/etc/snort/rules/*.rules

can you post another script

james thank you for all your hard work I know its not easy but we all do appreciate all your hard work

jamesdean

I will add a option to disable or enable all rules for an interface.
Please be Patient.

James

ToxIcon

Snort 2.8.4.1_7 pkg v. 1.8 RC4
their seem to be something wrong with the Emergingthreats rules It will download but they are not listed in Categories or rules
also their are no alerts or blocking also what would you recommend for HTTP server flow depth I have it set to 0