[Oisf-users] Suricata Hungs

[Peter Manev]

On Mon, Nov 19, 2018 at 7:08 PM Michael Tsukanov <zukinzin at gmail.com> wrote:
>
> Hi Peter,
> Yes we also had the same with 4.1.0 and rolled back to 4.0.5
>
> Stats.log - https://pastebin.com/sKmLwVJP
> Suricata.log - https://pastebin.com/q9Z3z0Zg
> suricata.yaml - https://pastebin.com/EEGHz4M4
> start line: /usr/local/bin/suricata -D --netmap --pidfile /var/run/suricata.pid -c /usr/local/etc/suricata/suricata.yaml
>
> no any unusual rules are triggered in that moment
> We use 114 alert and 6357 drop rules from Snort ruleset and 7314 alert and 3626 drop rules from ET rulesset + 1929 IP addresses from reputations lists
>

It seems there are a lot of errors during loading similar to  -

19/11/2018 -- 02:23:07 - <Error> - [ERRCODE:
SC_ERR_RULE_KEYWORD_UNKNOWN(102)] - unknown rule keyword
'http_raw_cookie'.
19/11/2018 -- 02:23:07 - <Error> - [ERRCODE:
SC_ERR_INVALID_SIGNATURE(39)] - error parsing signature "alert tcp
$EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"SERVER-WEBAPP
Multiple products DVR admin password leak attempt";
flow:to_server,established; content:"/device.rsp"; fast_pattern:only;
http_uri; content:"uid="; http_raw_cookie; content:"cmd=list";
metadata:policy balanced-ips drop, policy max-detect-ips drop, policy
security-ips drop, service http; reference:cve,2018-9995;
classtype:web-application-attack; sid:46825; rev:1;)" from file
/usr/local/etc/suricata/rules/snort.rules at line 11386

It may be somehow be related to some rules maybe -  but you say in
af-packet you may have  a problem once every two moths or so.
Is it possible to narrow it down  a bit - for example - load ET only
rules and see if any difference?

Thank you

> Sorry, I can't provide the details for AF_PACKETS right now - it may works for 1-2 months without any issues and restarts
>
>
>
> пн, 19 нояб. 2018 г. в 20:36, Peter Manev <petermanev at gmail.com>:
>>
>> On Mon, Nov 19, 2018 at 6:35 PM Peter Manev <petermanev at gmail.com> wrote:
>> >
>> >
>> > On Mon, Nov 19, 2018 at 6:25 PM Michael Tsukanov <zukinzin at gmail.com> wrote:
>> > >
>> > > Friends,
>> > > we've faced an issue with suricata running in inline mode.
>> > >
>> > > Could you please help us to find the root cause of the issue or determinate any useful  metrics which we may use for investigation.
>> > >
>> > > It may works 1-3 days, then we loose the access to switch behind the Suricata and Internet in the office.
>> > >
>> >
>> > Is it possible some rule triggers that condition ?
>> >
>> > > Suricata is placed between ASA and root switch
>> > > We use FreeBSD 11.2, Suricata 4.0.5 with Netmap (but also faced this situation with Ubuntu and AF_Packets in other location). The server has I350 Ethernet adapters, 16Gb RAM, i5 cpu.
>> >
>> > Could you share a bit more information with regards to the set up (ex config/start line etc...) and logs when that hapens - stats.log/suricata.log - for the af-packet set up for example ?
>> >
>>
>> Also (sent out the previous mail too fast - apologies ) - do you have
>> the same problem with Suricata 4.1  ?
>>
>> > > We use one /16 net as HOME_NET in suricata.yaml. The Internet channel is 80Mbps
>> > >
>> > > Thank you in advance
>>
>>
>>
>> --
>> Regards,
>> Peter Manev



-- 
Regards,
Peter Manev