Latest Snort Upgrade error in library engine

ProxyMoron

Hi,
I have also just upgraded and have exactly the same error - however i dug a bit further and noticed this in the logs for a forced update in the update tab which fails to download the Snort VRT rules:-

Jul 11 22:17:56 php-cgi snort_check_for_rule_updates.php: [Snort] Expected File MD5:
Jul 11 22:17:56 php-cgi snort_check_for_rule_updates.php: [Snort] Downloaded File MD5: fcf6bf610e0f417ae97bb9efd30e73c2
Jul 11 22:17:56 php-cgi snort_check_for_rule_updates.php: [Snort] Snort VRT rules file download failed. Bad MD5 checksum…
Jul 11 22:17:56 php-cgi snort_check_for_rule_updates.php: [Snort] Snort VRT rules file update downloaded successfully

It appears to not be downloading the MD5 for the ruleset correctly and matching on a blank MD5 - any suggestions?

morreale

same issue…subscribing

lutel

Same issue here

Paint

same issue.

bmeeks

@ProxyMoron:

Hi,
I have also just upgraded and have exactly the same error - however i dug a bit further and noticed this in the logs for a forced update in the update tab which fails to download the Snort VRT rules:-

Jul 11 22:17:56 php-cgi snort_check_for_rule_updates.php: [Snort] Expected File MD5:
Jul 11 22:17:56 php-cgi snort_check_for_rule_updates.php: [Snort] Downloaded File MD5: fcf6bf610e0f417ae97bb9efd30e73c2
Jul 11 22:17:56 php-cgi snort_check_for_rule_updates.php: [Snort] Snort VRT rules file download failed. Bad MD5 checksum…
Jul 11 22:17:56 php-cgi snort_check_for_rule_updates.php: [Snort] Snort VRT rules file update downloaded successfully

It appears to not be downloading the MD5 for the ruleset correctly and matching on a blank MD5 - any suggestions?

This is not a Snort package problem. The Snort VRT rules checksum file posted is not formatted correctly. The VRT guys should get it sorted out soon.

Bill

ProxyMoron

Just forced an update and it seems to be working now.

morreale

@morreale:

same issue…subscribing

just to clarify…i am having the same issue as the OP not the VRT issue. I have actually disabled all rulesets.

Jul 12 11:41:26	snort	80512	FATAL ERROR: The dynamic detection library "/usr/local/lib/snort_dynamicrules/server-webapp.so" version 1.0 compiled with dynamic engine library version 2.4 isn't compatible with the current dynamic engine library "/usr/local/lib/snort_dynamicengine/libsf_engine.so" version 2.6.

ProxyMoron

@morreale:

@morreale:

same issue…subscribing

just to clarify…i am having the same issue as the OP not the VRT issue. I have actually disabled all rulesets.
Jul 12 11:41:26	snort	80512	FATAL ERROR: The dynamic detection library "/usr/local/lib/snort_dynamicrules/server-webapp.so" version 1.0 compiled with dynamic engine library version 2.4 isn't compatible with the current dynamic engine library "/usr/local/lib/snort_dynamicengine/libsf_engine.so" version 2.6.

Hi,
Just so you know i had exactly that issue as well after i updated to the latest version of Snort. However, after i searched the forum i saw people suggest that i force update the ruleset to resolve that issue,. This I did but then noticed the issue above.

However, now, forcing the update has resolved both issues so you may want to try that.

morreale

thanks for the suggestions but the error still exists and snort does not start. if no one is having this issue i will reinstall / reconfigure but it was working before.

bmeeks

@morreale:

thanks for the suggestions but the error still exists and snort does not start. if no one is having this issue i will reinstall / reconfigure but it was working before.

If you have the "mismatched library version" error, that means your disk structure still contains files from the 2.9.8.0 rule set. It should get cleared out and fixed if you force a rule download on the UPDATES tab. If not, you can remove the Snort package using the DELETE icon on the Package Manager page and the reinstall Snort from scratch.

Bill

morreale

@bmeeks:

@morreale:

thanks for the suggestions but the error still exists and snort does not start. if no one is having this issue i will reinstall / reconfigure but it was working before.

If you have the "mismatched library version" error, that means your disk structure still contains files from the 2.9.8.0 rule set. It should get cleared out and fixed if you force a rule download on the UPDATES tab. If not, you can remove the Snort package using the DELETE icon on the Package Manager page and the reinstall Snort from scratch.

Bill

i have done a force update 5 times. i will do a delete and reinstall.

morreale

@bmeeks:

@morreale:

thanks for the suggestions but the error still exists and snort does not start. if no one is having this issue i will reinstall / reconfigure but it was working before.

If you have the "mismatched library version" error, that means your disk structure still contains files from the 2.9.8.0 rule set. It should get cleared out and fixed if you force a rule download on the UPDATES tab. If not, you can remove the Snort package using the DELETE icon on the Package Manager page and the reinstall Snort from scratch.

Bill

still will not start

FATAL ERROR: The dynamic detection library "/usr/local/lib/snort_dynamicrules/server-webapp.so" version 1.0 compiled with dynamic engine library version 2.4 isn't compatible with the current dynamic engine library "/usr/local/lib/snort_dynamicengine/libsf_engine.so" version 2.6.

same error.

do i need to restart server after uninstall before reinstall?

bmeeks

@morreale:

@bmeeks:

@morreale:

thanks for the suggestions but the error still exists and snort does not start. if no one is having this issue i will reinstall / reconfigure but it was working before.

If you have the "mismatched library version" error, that means your disk structure still contains files from the 2.9.8.0 rule set. It should get cleared out and fixed if you force a rule download on the UPDATES tab. If not, you can remove the Snort package using the DELETE icon on the Package Manager page and the reinstall Snort from scratch.

Bill

still will not start
FATAL ERROR: The dynamic detection library "/usr/local/lib/snort_dynamicrules/server-webapp.so" version 1.0 compiled with dynamic engine library version 2.4 isn't compatible with the current dynamic engine library "/usr/local/lib/snort_dynamicengine/libsf_engine.so" version 2.6.
same error.

do i need to restart server after uninstall before reinstall?

Try this brute force approach. Manually delete the /usr/local/lib/snort_dynamicengine directory and all files in it, then force a rules update. Or for an even more radical approach, remove the Snort package again, open a shell command line session and delete all the snort directories you see in /usr/local/lib, then reinstall Snort.

I may have asked you already, and if so forgive me for asking again, but are you by chance running this on NanoBSD? For some reason your old Snort version shared object rules are not getting removed and overwritten with the new version during updates from the new Snort 2.9.8.3 package. Shared object rules are pre-compiled and tagged with specific version numbers that tie them to the Snort binary. Each time the binary updates, the shared object rules get a new version number. The error message is telling us that you have a version mismatch between the Snort binary and the installed shared object pre-compiled rules.

Bill

morreale

not running the nanobsd version.

i will remove all remnants and try again.

thanks for the help

morreale

@bmeeks:

Or for an even more radical approach, remove the Snort package again, open a shell command line session and delete all the snort directories you see in /usr/local/lib, then reinstall Snort.

Bill

did this. i like clean :)

now working again. thanks Bill

bmeeks

@morreale:

@bmeeks:

Or for an even more radical approach, remove the Snort package again, open a shell command line session and delete all the snort directories you see in /usr/local/lib, then reinstall Snort.

Bill

did this. i like clean :)

now working again. thanks Bill

Great! Thanks for the feedback. Not sure why those directories did not get cleaned on the remove and reinstall, though. That is supposed to happen.

Bill

freebs

Thanks to this thread I was able to get snort working again, but I stall can't get VRT rules or community rules to update at all or even openAppID rules for that matter only ET rules.

here is a pastebin of the log.. http://pastebin.com/uG6akM28

Disable SSL Peer is checked… i've also regenerated a new Oinkmaster Code with no good results.

snort ver. 3.2.9.1_14 snort -2.9.8.3 and barnyard2-1.13 installed

Any help appreciated!

freebs

omg.. never mind.. it was the dnsbl in pfBlocker that was causing my issue… now i feel stupid.. pffft!

kidalabama

Aug 9 20:37:15 php-fpm 23902 /snort/snort_interfaces.php: The command '/usr/local/bin/snort -R 11181 -D -l /var/log/snort/snort_em011181 –pid-path /var/run --nolock-pidfile -G 11181 -c /usr/local/etc/snort/snort_11181_em0/snort.conf -i em0' returned exit code '1', the output was ''
Aug 9 20:37:15 snort 26537 FATAL ERROR: The dynamic detection library "/usr/local/lib/snort_dynamicrules/server-webapp.so" version 1.0 compiled with dynamic engine library version 2.4 isn't compatible with the current dynamic engine library "/usr/local/lib/snort_dynamicengine/libsf_engine.so" version 2.6.

2.3.2-RELEASE (amd64)
built on Tue Jul 19 12:44:43 CDT 2016
FreeBSD 10.3-RELEASE-p5

kidalabama

i have solved problem.

remove interface and add wan interface after.