Snort mailing list archives

Re: PulledPork 500 error


From: Dave Corsello <snort-users () wintertreemedia com>
Date: Wed, 16 Apr 2014 09:55:58 -0400

Pulledpork runs daily.  It's good to know that VRT didn't blacklist the
server.  But the question of how it got into my blacklist remains.  Is
the Amazon server in question a legitimate part of your rules delivery
system?  If so, is it possible that the list gets altered somehow when
it's handed off to Amazon?  What possible hack scenario could account
for the address being added to my blacklist only?

Come to think of it, this isn't the first time this has happened.  When
I first implemented the reputation preprocessor, the IP addresses
23.23.143.164 and 23.23.152.48 were blacklisted, and this caused
pulledpork to fail.  At that time, I added those addresses to my
whitelist as a work around.  So, given that this happened right off the
bat, it seems less likely to me that my system in particular has been
hacked.

On 4/16/2014 9:29 AM, Joel Esler (jesler) wrote:
Yeah, I’m not understanding that either.  That IP is not on our
blacklist.  How often do you update the IP blacklist?

--
*Joel Esler*
Open Source Manager
Threat Intelligence Team Lead
Vulnerability Research Team

On Apr 16, 2014, at 9:19 AM, Dave Corsello
<snort-users () wintertreemedia com
<mailto:snort-users () wintertreemedia com>> wrote:

Any thoughts on this?

I'm able to get pulledpork to run successfully by adding 23.23.165.79
to my whitelist.  But my concern is that pulledpork or my DNS has
been hijacked to pull info from a server that VRT has intentionally
blacklisted.  The other possibility is that the IP was added in error
to the blacklist.

Am I the only person whose blacklist contains 23.23.165.79?  If so,
then I clearly have big problems.  The fact that no one else is
reporting pulledpork failures indicates that this might be the case,
although it could also indicate that few open source users are using
Snort inline...

On 4/15/2014 11:01 AM, Dave Corsello wrote:
Sorry again for the confusion.  23.23.165.79 is included in my
default.blacklist file, which is maintained by pulledpork.

Pulledpork is configured to get the blacklist from labs.snort.org
<http://labs.snort.org>.  Is that the way it should be configured?

It looks like labs.snort.org <http://labs.snort.org> is handing the
request off to an Amazon server at the IP address in question.  Is
that the way it's supposed to work?

On 4/13/2014 12:10 AM, Dave Corsello wrote:
My apologies.  I can't find the IP address in any backup of the IP
blacklist.  I assumed the address must have been in the blacklist
because of the following alerts in BASE:

   #4-(2-1375)
<http://base2.wintertreemedia.com/base_qry_alert.php?submit=%234-%282-1375%29&sort_order=time_a>
   [snort <http://www.snort.org/search/sid/136-1>] reputation: Packet
is blacklisted     2014-04-11 XX:XX:XX     XX.XX.XX.XX
<http://base2.wintertreemedia.com/base_stat_ipaddr.php?ip=10.20.60.6&netmask=32>:56579
   23.23.165.79
<http://base2.wintertreemedia.com/base_stat_ipaddr.php?ip=23.23.165.79&netmask32>:443
   TCP
   #5-(2-1376)
<http://base2.wintertreemedia.com/base_qry_alert.php?submit=%235-%282-1376%29&sort_order=time_a>
   [snort <http://www.snort.org/search/sid/136-1>] reputation: Packet
is blacklisted     2014-04-11 XX:XX:XX     XX.XX.XX.XX
<http://base2.wintertreemedia.com/base_stat_ipaddr.php?ip=10.20.60.6&netmask=32>:56579
   23.23.165.79
<http://base2.wintertreemedia.com/base_stat_ipaddr.php?ip=23.23.165.79&netmask32>:443
   TCP
   #6-(1-45791)
<http://base2.wintertreemedia.com/base_qry_alert.php?submit=%236-%281-45791%29&sort_order=time_a>
   [snort <http://www.snort.org/search/sid/136-1>] reputation: Packet
is blacklisted     2014-04-11 XX:XX:XX     XX.XX.XX.XX
<http://base2.wintertreemedia.com/base_stat_ipaddr.php?ip=10.20.60.6&netmask=32>:43678
   23.23.165.79
<http://base2.wintertreemedia.com/base_stat_ipaddr.php?ip=23.23.165.79&netmask32>:443
   TCP
   #7-(1-45792)
<http://base2.wintertreemedia.com/base_qry_alert.php?submit=%237-%281-45792%29&sort_order=time_a>
   [snort <http://www.snort.org/search/sid/136-1>] reputation: Packet
is blacklisted     2014-04-11 XX:XX:XX     XX.XX.XX.XX
<http://base2.wintertreemedia.com/base_stat_ipaddr.php?ip=10.20.60.6&netmask=32>:43678
   23.23.165.79
<http://base2.wintertreemedia.com/base_stat_ipaddr.php?ip=23.23.165.79&netmask32>:443
   TCP


Internal IPs and times are obscured.  It appears that neither
source nor destination IPs should have been blacklisted, but BASE
reports them as having been blacklisted by Snort.  The packets were
dropped;  the times and internal IPs correspond to the failed
pulledpork jobs.

On 4/12/2014 9:28 AM, Joel Esler (jesler) wrote:
The ip blacklist?

--
Joel Esler
Sent from my iPhone

On Apr 12, 2014, at 7:05, "Dave Corsello" <snort-users () wintertreemedia com> wrote:

The problem is that the IP address of the Amazon server from which
PulledPork pulls VRT rules was added by VRT to the default blacklist. 
Any ideas why they might have done this?


On 4/11/2014 2:20 PM, waldo kitty wrote:
On 4/11/2014 10:41 AM, Dave Corsello wrote:
I got the following error in PulledPork last night:  "A 500 error
occurred, please verify that you have recently updated your root
certificates!"  I made no changes.  Any ideas what might be happening?
"root certificates" sounds like ssl certificates... heartbleed... wanna bet that 
some certificates have been updated during heartbleed remediation and you now 
need to update the certificates your system(s) use...
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