Snort 2.9.2.3 pkg v. 2.5.1 service fails overnight, unable to restart
-
Since upgrading to 2.5.1, snort fails every night (I assume during rule update). The only way to get it running again is a complete re-install of the package (including manual deletion of snort dirs left behind from uninstall). Here's the error I'm getting:
Jul 25 08:21:48 snort[60091]: FATAL ERROR: /usr/local/etc/snort/snort_56869_em0/preproc_rules/sensitive-data.rules(1) Unknown ClassType: sdf
Jul 25 08:21:48 snort[60091]: FATAL ERROR: /usr/local/etc/snort/snort_56869_em0/preproc_rules/sensitive-data.rules(1) Unknown ClassType: sdf
Jul 25 08:21:48 snort[60091]: Initializing rule chains…
Jul 25 08:21:48 snort[60091]: Initializing rule chains…Any suggestions? This is a production install, so a reboot is difficult.
-
This should have been fixed already on latest code!
-
Package manager indicates I have the latest install. Do you mean the dev package has the fix?
-
Mine has completed two auto updates since the latest package and have not received this error. Do you have snort and emerging rules enabled?
-
Ermal, on fresh install (just now), this error comes up in in the interface's preprocessors tab GUI. It displays just under Stream 5 category, Max Queued Bytes:
Fatal error: Call to undefined function gettet() in /usr/local/www/snort/snort_preprocessors.php on line 225
This cuts off the preprocessors normally selected here from display.
cheers,
-
Correct, I have both sets installed and all categories activated, non-blocking mode. I tried starting snort with no categories selected, but the same error occurred.
-
There is a typographical error that occurs in two PHP files http://forum.pfsense.org/index.php/topic,51813.0.html
-
Disabling the Sensitive Data Proprocessor got me up and running for the time being. It seemed like it was fine until Snort updated it's rules on the 24th, or something.
-
Upgraded to v2.5.1 yesterday. However, this morning, snort was not running. The last snort related entry in the system log is the snort ruleset update shortly after midnight.
I was able to restart snort.
This used to be a issue with the builds a month or so back - is this a regression issue now?
-
There is a typographical error that occurs in two PHP files http://forum.pfsense.org/index.php/topic,51813.0.html
Unfortunately this did not fix my issue, even after editing both files.
-
FYI -
Turning off the sensitive data preprocessor on the affected interface seems to have resolved the problem. I can restart the service by hand, I'll report back tomorrow after an automatic rule update.
-
caustic386,
which rule sets did you load? If your are using the ET rules only, have a look at http://forum.pfsense.org/index.php/topic,51725.msg276658.html#msg276658 .
Updating with Snort.org rules should not give any problems with the latest sources.
-
Update: The service still fails overnight, but I can restart it manually with ease.
Fesoj, I'm using both ET and Snort. Will your fix still apply?
-
I'm using both ET and Snort. Will your fix still apply?
No, it won't. I have currently 4 machines running. 1 has only the ET rules installed, the others have Snort.org and ET rules. The patch is currently needed for the first machine. The rest is running fine. I'd guess you still have old GUI sources on your machine (older than a couple of days).
-
I tried reinstalling the GUI components, but that broke the whole thing. I reinstalled from scratch, but i'm guessing that put me back where I started (will fail overnight).
-
caustic386,
more could be broken. If you have a saved configuration from your latest working setup, you could reinstall the entire environment via Diagnostics: Backup/restore.
-
Unfortunately I'm in production, so that seems like a bad idea. Is there a way to clean it all out by hand?
-
failed on my box when after uninstall and reinstalling snort yesterday… had the normal sensitive data error this morning... I'll do it again and see what happens later today or tomorrow morning
-
On AMD64, 2.0.1, Snort is working without issues so far, and updating (auto updating) providing I toggle the sensitive data preprocessor off. This is the latest install as of Ermal's last change to fix the gettet typo. Ccaustic…point 3 will clean up old snort bits after you uninstall.
If you are installing Snort make sure you do the following:
1. Uninstall (if you have an older version, suggest you not toggle "save settings" to on. In other words, start fresh.
2. Create an alias in pfsense to reflect your old whitelist. You will select this alias in the snort whitelist tab later.
3. Run this command using Diagnostics -> Command Prompt: find /* | grep -i snort | xargs rm -rv (removes old snort references)
4. Install latest. Likely for this version you'll want to make sure that senstive data preprocessor is not selected. I've got all others on.
5. Monitor blocking and prepare to add quite a few exclusions! This is the set I'm using pretty much copy/pasted from the suppression tab:# HTTP Inspect Errors suppress gen_id 120, sig_id 3 suppress gen_id 120, sig_id 6 suppress gen_id 120, sig_id 8 suppress gen_id 120, sig_id 10 # suppress gen_id 1, sig_id 2014819 # # This event indicates that a portable executable file has been downloaded. suppress gen_id 1, sig_id 15306 # # This event indicates that Email Addresses have been observed in traffic on the protected network. suppress gen_id 138, sig_id 5 # # This set of instructions can be used as a NOOP to pad buffers on an x86 architecture machines. suppress gen_id 1, sig_id 1390 # # FILE-IDENTIFY download of executable content - x-header -> stops windows download suppress gen_id 1, sig_id 16313 # # FILE-IDENTIFY download of executable content -> stops file downloads suppress gen_id 1, sig_id 11192 # #"GPL SHELLCODE x86 NOOP" suppress gen_id 1, sig_id 648 -
That's exactly the process i've been using, but so far fails every time during nightly updates. I'll try one more time and report back tomorrow.