[Bro] Bro hanging on some sensors

Mike Reeves luke at geekempire.com
Fri Jun 13 07:32:59 PDT 2014


Bro will sense additions but won’t remove old stuff unless it is restarted check out “Putting it all together” in the blog post below. 

http://blog.bro.org/2014/01/intelligence-data-and-bro_4980.html



On Jun 13, 2014, at 8:59 AM, Kellogg, Brian D (OLN) <bkellogg at dresser-rand.com> wrote:

> Yeah they were working up to about a week ago.  I commented out the intel
> files on one and that fixed it.  Odd, as they should all be the same with the
> replication from the SO server policy directory.  The majority of the sensors
> are working fine with the same intel files and I'm seeing new results in ELSA
> every day.  Hmmm
> 
> I do not have Bro restarting via Onion-Salt.  I was under the understanding
> that Bro would periodically sense the file changes and re-read the intel
> files.
> 
> Thanks,
> Brian
> 
> Thank you,
> Brian Kellogg
> Security Analyst; IT Governance, Risk, and Compliance
> 500 Paul Clark Drive, Olean,  NY 14760
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> 
> -----Original Message-----
> From: Doug Burks [mailto:doug.burks at gmail.com]
> Sent: Friday, June 13, 2014 6:56 AM
> To: Kellogg, Brian D (OLN)
> Cc: bro
> Subject: Re: [Bro] Bro hanging on some sensors
> 
> Did these sensors work correctly before you added the Intel files?
> 
> Have you tried removing the Intel files from the equation?  If not, please try commenting out the entries you added to /opt/bro/share/bro/site/local.bro and then running:
> sudo broctl install
> sudo broctl restart
> 
> Are you running OnionSalt?  Do you have OnionSalt configured to automatically restart Bro?  There are known issues with doing so, which is why OnionSalt does not do so by default.  Please see:
> https://code.google.com/p/security-onion/wiki/Salt#Features
> 
> This may not be an issue strictly related to Bro, so we may need to move this conversation to the security-onion mailing list:
> https://code.google.com/p/security-onion/wiki/MailingLists
> 
> On Thu, Jun 12, 2014 at 9:00 AM, Kellogg, Brian D (OLN) <bkellogg at dresser-rand.com> wrote:
>> I use a cron job that runs every 30 minutes to download the intel files to:
>> /opt/bro/share/bro/policy/.  The cron job uses the mal-dnssearch script.
>> 
>> In each sensor's /opt/bro/share/bro/site/local.bro file I have the below:
>> 
>> # load intelligence framework
>> @load policy/frameworks/intel/seen
>> @load policy/frameworks/intel/do_notice #@load
>> policy/integration/collective-intel
>> redef Intel::read_files += {
>>        "/opt/bro/share/bro/policy/xxx.intel",
>>        "/opt/bro/share/bro/policy/xxx.intel",
>>        "/opt/bro/share/bro/policy/xxx.intel",
>>        "/opt/bro/share/bro/policy/xxx.intel",
>>        "/opt/bro/share/bro/policy/xxx.intel",
>>        "/opt/bro/share/bro/policy/xxx.intel",
>> };
>> 
>> In the reporter.log file I am now seeing the below warning on the four
>> sensors having this issue:
>>    0.000000    Reporter::WARNING       SumStat key request for the
>> 3Mntn3EPhU3 SumStat uid took longer than 1 minute and was
>> automatically cancelled.
>> /opt/bro/share/bro/base/frameworks/sumstats/./cluster.bro, line
>> 209
>>    0.000000    Reporter::WARNING       SumStat key request for the
>> 2HAva5N4Kqf SumStat uid took longer than 1 minute and was
>> automatically cancelled.
>> /opt/bro/share/bro/base/frameworks/sumstats/./cluster.bro, line
>> 209
>> 
>> Thanks,
>> Brian
> 
> 
> 
> --
> Doug Burks
> 
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