[Snort-sigs] md5 on snort rules not matching (oinkmaster)

Joel Esler (jesler) jesler at ...3865...
Mon Sep 19 11:54:43 EDT 2016


That’s not the link to the Registered ruleset.  In order to access the Registered ruleset, you must have an account on Snort.org<http://Snort.org>, and utilize your oinkcode to download the ruleset via oinkmaster.

https://snort.org/oinkcodes

--
Joel Esler
Manager
Talos Group
http://www.talosintelligence.com


On Sep 19, 2016, at 9:25 AM, Lesley Leposo <leposo at ...4180...<mailto:leposo at ...4180...>> wrote:


Hello,

kindly let me know what’s going on.
I’ve downloaded the following urls and the md5s are consistently not matching.
Also it would seem that the snapshots are all pointing to the same file

Any pointers?

Here are the oinkmaster urls
url = https://snort.org/downloads/registered/snortrules-snapshot-2976.tar.gz
url = https://snort.org/downloads/registered/snortrules-snapshot-2982.tar.gz
url = https://snort.org/downloads/registered/snortrules-snapshot-2983.tar.gz
url = https://snort.org/downloads/community/community-rules.tar.gz

Here is the oinkmaster output depicting the error

$ oinkmaster.pl  -o /usr/local/etc/snort/rules/ -c -v -C /usr/local/etc/oinkmaster.conf
Loading /usr/local/etc/oinkmaster.conf
Adding file to ignore list: local.rules.
Adding file to ignore list: deleted.rules.
Adding file to ignore list: snort.conf.
Found gzip binary in /usr/bin
Found tar binary in /usr/bin
Downloading file from https://snort.org/downloads/registered/snortrules-snapshot-2983.tar.gz...
--2016-09-19 14:18:14--  https://snort.org/downloads/registered/snortrules-snapshot-2983.tar.gz
Resolving snort.org<http://snort.org/> (snort.org<http://snort.org/>)... 104.16.66.75, 104.16.63.75, 104.16.62.75, ...
Connecting to snort.org<http://snort.org/> (snort.org<http://snort.org/>)|104.16.66.75|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://snort.org/ [following]
--2016-09-19 14:18:15--  https://snort.org/
Reusing existing connection to snort.org<http://snort.org/>:443.
HTTP request sent, awaiting response... 200 OK
Length: 43611 (43K) [text/html]
Saving to: '/var/folders/6y/kwwww__d14q6w0h8th05vhrw0000gp/T/oinkmaster._sKOOq69Mu/url.DzhKeDdaib/snortrules.tar.gz'

/var/folders/6y/kwwww__d14q6w0h8th05vhrw000 100%[========================================================================================>]  42.59K  77.6KB/s    in 0.5s

2016-09-19 14:18:16 (77.6 KB/s) - '/var/folders/6y/kwwww__d14q6w0h8th05vhrw0000gp/T/oinkmaster._sKOOq69Mu/url.DzhKeDdaib/snortrules.tar.gz' saved [43611/43611]

gzip: /var/folders/6y/kwwww__d14q6w0h8th05vhrw0000gp/T/oinkmaster._sKOOq69Mu/url.DzhKeDdaib/snortrules.tar.gz: not in gzip format

/opt/local/bin/oinkmaster.pl: Error: https://snort.org/downloads/registered/snortrules-snapshot-2983.tar.gz: integrity check on gzip file failed (file transfer failed or file in URL not in gzip format?).

Oink, oink. Exiting...


here are the isolated downloads and md5s
$ curl https://snort.org/downloads/registered/snortrules-snapshot-2976.tar.gz -o /tmp/snortrules-snapshot-2976.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100    84    0    84    0     0     55      0 --:--:--  0:00:01 --:--:--    55
p

$ curl https://snort.org/downloads/registered/snortrules-snapshot-2982.tar.gz -o /tmp/snortrules-snapshot-2982.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100    84    0    84    0     0     56      0 --:--:--  0:00:01 --:--:--    56
$ curl https://snort.org/downloads/registered/snortrules-snapshot-2983.tar.gz -o /tmp/snortrules-snapshot-2983.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100    84    0    84    0     0     51      0 --:--:--  0:00:01 --:--:--    51
$ curl https://snort.org/downloads/community/community-rules.tar.gz -o /tmp/community-rules.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   286    0   286    0     0    143      0 --:--:--  0:00:01 --:--:--   143

$ md5 /tmp/snortrules-snapshot-2976.tar.gz
MD5 (/tmp/snortrules-snapshot-2976.tar.gz) = fece3271d650c597ffb3b8369cb893ed
$ md5 /tmp/snortrules-snapshot-2982.tar.gz
MD5 (/tmp/snortrules-snapshot-2982.tar.gz) = fece3271d650c597ffb3b8369cb893ed
$ md5 /tmp/snortrules-snapshot-2983.tar.gz
MD5 (/tmp/snortrules-snapshot-2983.tar.gz) = fece3271d650c597ffb3b8369cb893ed
$ md5 /tmp/community-rules.tar.gz
MD5 (/tmp/community-rules.tar.gz) = 821af6faea07c9b0f40f72dfb661f990
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