Commit graph

143 commits

Author SHA1 Message Date
Jon Siwek
497496ec83 FileAnalysis: replace script-layer SMTP file analysis.
Notable differences:

- Removed SMTP::MD5 notice.

- Removed ability to specify mime entity excerpt length per mime-type.
2013-03-26 15:48:52 -05:00
Robin Sommer
d58a02aa01 Merge remote-tracking branch 'origin/topic/bernhard/base64'
* origin/topic/bernhard/base64:
  and re-enable caching of extracted certs
  and add bae64 bif tests.
  re-unify classes
  and modernize script.
  add base64-encode functionality and bif.

Closes #965.
2013-03-17 13:00:52 -07:00
Robin Sommer
788c0d547d Merge remote-tracking branch 'origin/topic/seth/software-version-updates2'
* origin/topic/seth/software-version-updates2:
  Correctly handle DNS lookups for software version ranges.
  Improvements to vulnerable software detection.
  Update software version parsing and comparison to account for a third numeric subversion.

Closes #938.
2013-03-17 12:38:25 -07:00
Seth Hall
5734f9ef71 Merge remote-tracking branch 'origin/master' into topic/seth/software-version-updates2 2013-03-14 09:21:13 -04:00
Bernhard Amann
457ce10e99 and re-enable caching of extracted certs
I kind of deleted the line by accident...
2013-03-13 00:34:15 -07:00
Bernhard Amann
a1896fde90 Merge remote-tracking branch 'origin/master' into topic/bernhard/base64 2013-03-12 09:28:07 -07:00
Bernhard Amann
986b346e3f remove the byte_len and length bifs 2013-03-06 13:45:42 -08:00
Bernhard Amann
cfada61672 and modernize script.
thanks Seth.
2013-03-06 13:30:13 -08:00
Bernhard Amann
5e8e12182a add base64-encode functionality and bif.
This allows replacing an ugly openssl-call from one of
the policy scripts. The openssl call is now replaced with
a still-but-less-ugly call to base64_encode.

I do not know if I split the Base64 classes in a "smart" way... :)
2013-03-05 16:05:07 -08:00
Seth Hall
e974950c6d Correctly handle DNS lookups for software version ranges. 2013-02-06 13:59:17 -05:00
Seth Hall
ff3ec04f32 Improvements to vulnerable software detection.
- Add a DNS based updating method.  This needs to be tested still.

 - Vulnerable version ranges are used now instead
   of only single versions.  This can deal with
   software with multiple stable major versions.
2013-02-06 13:59:12 -05:00
Seth Hall
a2556642e6 Merge remote-tracking branch 'origin/topic/matthias/notary'
* origin/topic/matthias/notary:
  Small cosmetic changes.
  Give log buffer the correct name.
  Simplify delayed logging of SSL records.
  Implement delay-token style SSL logging.
  More style tweaks: replace spaces with tabs.
  Factor notary code into separte file.
  Adhere to Bro coding style guidelines.
  Enhance ssl.log with information from notary.

Closes #928
2013-02-05 02:06:33 -05:00
Jon Siwek
69afc4a882 Add an error for record coercions that would orphan a field.
These cases should be avoidable by fixing scripts where they occur and
they can also help catch typos that would lead to unintentional runtime
behavior.

Adding this already revealed several scripts where a field in an inlined
record was never removed after a code refactor.
2013-01-24 09:56:19 -06:00
Matthias Vallentin
a635f96518 Small cosmetic changes. 2013-01-15 14:56:02 -08:00
Matthias Vallentin
7ff15f4599 Simplify delayed logging of SSL records. 2012-12-24 22:57:49 -08:00
Matthias Vallentin
9e81342c92 Implement delay-token style SSL logging.
This commit moves the notary script into the policy directory, along with some
architectural changes: the main SSL script now has functionality to add and
remove tokens for a given record. When adding a token, the script delays the
logging until the token has been removed or until the record exceeds a maximum
delay time.

As before, the base SSL script stores all records sequentially and buffers even
non-delayed records for the sake of having an ordered log file. If this turns
out to be not so important, we can easily revert to a simpler logic.

(This is still WiP, some debuggin statements still linger.)
2012-12-22 20:30:17 -08:00
Jon Siwek
2f0c698ed5 Improve error for invalid use of types as values (addresses #923).
This scripting error can now generate an error message at parse-time
instead of run-time and also includes location information.
2012-12-18 14:31:39 -06:00
Jon Siwek
e0805498c6 Fix some warnings from sphinx when building docs. 2012-11-15 16:40:18 -06:00
Robin Sommer
edf6750e3d Fixing tests after intel merge. 2012-11-05 16:25:59 -08:00
Robin Sommer
a40b00d4ab Merge branch 'topic/robin/intel-framework-merge'
* topic/robin/intel-framework-merge: (22 commits)
  Fixing tests after intel-framework merge.
  Extracting URLs from message bodies over SMTP and sending them to Intel framework.
  Small comment updates in the Intel framework CIF support.
  Intelligence framework documentation first draft.
  Only the manager tries to read files with the input framework now.
  Initial support for Bro's Intel framework with the Collective Intelligence Framework.
  Initial API for Intel framework is complete.
  Fixed an issue with cluster data distribution.
  Updating some intel framework test baselines.
  Reworked cluster intelligence data distribution mechanism and fixed tests.
  Lots more intelligence checking in SMTP traffic.
  Added intelligence check for "Received" path checking and a bit of reshuffling.
  Added sources to the intel log.
  Fixing a problem with intel distribution on clusters.
  Updated intel framework test to include matching.
  Restructuring the scripts that feed data into the intel framework slightly.
  One test for cluster transparency of the intel framework.
  Fixed a cluster support bug.
  Intelligence framework checkpoint
  Major updates to fix the Intel framework API.
  ...

Closes #914.
2012-11-05 16:00:38 -08:00
Robin Sommer
4e12813445 Fixing tests after modbus merge. 2012-11-05 15:58:38 -08:00
Robin Sommer
86ce564107 Merge remote-tracking branch 'remotes/origin/topic/seth/modbus-merge'
* remotes/origin/topic/seth/modbus-merge:
  Small modbus documentation update and tiny refactoring.
  Final touches to modbus analyzer for now.
  Major revisions to Modbus analyzer support (not quite done yet).
  put some make-up on Modbus analyser
  Modbus analyser, added support: FC=20,21
  Modbus analyzer,added support: FC=1,2,15,24
  Modbus analyzer, current support: FC=3,4,5,6,7,16,22,23

Closes #915.
2012-11-05 15:26:57 -08:00
Robin Sommer
4fab70ecce Merge remote-tracking branch 'vlad/topic/vladg/dns_txt_queries'
* vlad/topic/vladg/dns_txt_queries:
  Add detection rate threshold for MHR.
  Make sure lookup_hostname_txt isn't checking lookup_hostname's cache for answers.
  A couple of lookup_hostname_txt fixes.

Reverting the earlier function-join during merging.
2012-11-05 13:40:24 -08:00
Vlad Grigorescu
1aeb52ae46 Add detection rate threshold for MHR. 2012-11-03 12:09:11 -04:00
Robin Sommer
70339e9fed Fixing tests after intel-framework merge.
coverage.bare-mode-errors still failing.
2012-11-01 09:28:59 -07:00
Seth Hall
c32b179ac5 Small modbus documentation update and tiny refactoring. 2012-10-31 23:57:38 -04:00
Seth Hall
a2f336cc72 Final touches to modbus analyzer for now.
- There are still some broken events in the modbus analyzer because
  I don't have traffic to test with (coil and record related events primarily).

- There are a few example scripts in policy/protocols/modbus
2012-10-31 23:34:43 -04:00
Seth Hall
172a6345b8 Extracting URLs from message bodies over SMTP and sending them to Intel framework.
- New utils package for URLs.

- Two functions in the URLs utils.  find_all_urls and
  find_all_urls_without_scheme.
2012-10-31 08:46:40 -04:00
Seth Hall
1280825f1d Small comment updates in the Intel framework CIF support. 2012-10-11 15:31:14 -04:00
Seth Hall
49a28b0bf7 Initial support for Bro's Intel framework with the Collective Intelligence Framework. 2012-10-10 11:16:11 -04:00
Seth Hall
38468f9daa Lots more intelligence checking in SMTP traffic. 2012-09-28 22:43:36 -04:00
Seth Hall
375769f42c Added intelligence check for "Received" path checking and a bit of reshuffling. 2012-09-28 22:07:40 -04:00
Seth Hall
0bcedcd204 Restructuring the scripts that feed data into the intel framework slightly. 2012-09-28 13:25:37 -04:00
Seth Hall
2366b21787 One test for cluster transparency of the intel framework. 2012-09-28 13:25:06 -04:00
Seth Hall
a803cae92e Intelligence framework checkpoint
- Basic API seems to works, but tests aren't updated yet.

 - Several scripts are available in policy/frameworks/intel that
   call the "seen" function to provide data into the intel
   framework to be tested.

 - Intel::policy is not done yet and needs to be discussed to
   figure out what it needs to have.

 - Running the intel framework and having it do something finally
   is really cool!
2012-09-28 07:07:02 -04:00
Seth Hall
5f40e153a8 Adding an identifier to the SMTP blocklist notices for duplicate suppression.
- Slight addition and revision to inline docs.
2012-08-23 13:55:04 -04:00
Seth Hall
205ad78369 Fix some problems in logs-to-elasticsearch.bro 2012-08-14 15:09:38 -04:00
Robin Sommer
4bdac985cb Tweaking logs-to-elasticsearch.bro so that it doesn't do anything if
ES server is unset.
2012-07-28 11:21:20 -07:00
Seth Hall
596f07e505 Reworked how the logs-to-elasticsearch scripts works to stop abusing the logging framework.
- New variable in logging framework Log::active_streams to indicate
  Log:ID enums which are currently active.
2012-07-27 15:31:10 -04:00
Daniel Thayer
c3aba199f6 Fix build warnings 2012-07-25 17:40:21 -05:00
Seth Hall
43507b1bb9 New script for easily duplicating logs to ElasticSearch. 2012-07-18 11:28:41 -04:00
Jon Siwek
dd4dd0ca6e Add @load-sigs directive for loading signature files (addresses #551). 2012-06-01 14:10:23 -05:00
Jon Siwek
74f3a32321 Enable Bro to communicate with peers over non-global IPv6 addresses.
This usually requires specifying an additional zone identifier
(see RFC 4007).  The connect() and listen() BIFs have been
changed to accept this zone identifier as an argument.
2012-05-17 12:59:20 -05:00
Jon Siwek
1e66fe905a Add support to Bro for connecting with peers over IPv6.
- Communication::listen_ipv6 needs to be redef'd to true in order
  for IPv6 listening sockets to be opened.

- Added Communication::listen_retry option as an interval at which
  to retry binding to socket addresses that were already in use.

- Added some explicit baselines to check in the istate.events
  and istate.events-ssl tests -- the SSL test was incorrectly
  passing because it compared two empty files.  (The files being
  empty because "http/base" was given as an argument to Bro which
  it couldn't handle because that script doesn't exist anymore).
2012-05-09 15:08:36 -05:00
Robin Sommer
7458ebf385 Checkpoint after pass. 2012-02-15 13:07:08 -08:00
Seth Hall
2cd88ee4f6 Merge remote-tracking branch 'origin/topic/bernhard/software'
* origin/topic/bernhard/software:
  change software framework interface again. At the moment everything should worl.
  start reworking interface of software framework. working apart from detect-webapps.bro, which direcly manipulates a no longer available interface...
  after talking to seth - change host_a field in record back to host.
  forgotten policy files.
  Software framework stores ports for server software.
2012-02-03 16:17:04 -05:00
Robin Sommer
6a3b41b84d Bugfix caught by test-suite. 2012-01-25 17:45:26 -08:00
Bernhard Amann
eacdffff90 Merge remote-tracking branch 'origin/master' into topic/bernhard/software
Conflicts:
	scripts/base/frameworks/software/main.bro
	scripts/policy/protocols/ftp/software.bro
2012-01-20 12:51:58 -08:00
Seth Hall
5b04789ab8 Fixed a bug resulting in over-logging of detected webapps. 2012-01-20 11:22:15 -05:00
Robin Sommer
71eaae8539 Fixing typos 2012-01-10 19:09:30 -08:00