Commit graph

1524 commits

Author SHA1 Message Date
Johanna Amann
a51ee45e05 Merge remote-tracking branch 'origin/master' into topic/johanna/openflow 2015-05-12 13:08:32 -07:00
Robin Sommer
03a29368fe Merge branch 'topic/robin/ascii-escape-normalization'
* topic/robin/ascii-escape-normalization:
  Updating NEWS.
  In bifs, change ODesc objects to have RAW_STYLE.
  Changing what's escaped when printing.
  Remove several BroString escaping methods that are no longer useful.

BIT-1333 #merged
2015-04-21 15:59:54 -07:00
Robin Sommer
5b32791edb Merge remote-tracking branch 'origin/topic/vladg/sip'
* origin/topic/vladg/sip:
  Update NEWS.
  Update baselines.
  Spruce up SIP events.bif documentation a bit.
  Register SIP analyzer to well known port.
  Fix indenting issue in main.bro
  Add SIP btests.
  Small update for the SIP logs and DPD sig.
  SIP: Fix up DPD and the TCP analyzer a bit.
  SIP: Move to the new string BIFs
  SIP: Move to new analyzer format.
  Move the SIP analyzer to uint64 sequences, and a number of other small SIP fixes.
  Rely on content inspection and not just is_orig to determine client/server.
  Enable SIP in CMakeLists.txt
  Merge topic/seth/faf-updates.

BIT-1370 #merged
2015-04-21 15:30:25 -07:00
Robin Sommer
8b722c484d Renaming krb.log to kerberos.log. 2015-04-21 12:22:58 -07:00
Vlad Grigorescu
9f9bad48a4 Merge remote-tracking branch 'origin/master' into topic/vladg/kerberos
Conflicts:
	NEWS
	testing/btest/Baseline/coverage.bare-load-baseline/canonified_loaded_scripts.log
	testing/btest/Baseline/coverage.default-load-baseline/canonified_loaded_scripts.log
	testing/btest/Baseline/plugins.hooks/output
	testing/btest/Baseline/scripts.policy.misc.dump-events/all-events.log
	testing/btest/Baseline/scripts.policy.misc.dump-events/smtp-events.log
2015-04-21 12:59:54 -04:00
Vlad Grigorescu
32284c753b Update the KRB tests a bit. 2015-04-21 12:27:14 -04:00
Robin Sommer
a9979d56a4 Merge remote-tracking branch 'origin/topic/vladg/file-analysis-exe-analyzer'
* origin/topic/vladg/file-analysis-exe-analyzer: (31 commits)
  Tweak the PE OS versions based on real-world traffic.
  Update pe/main.bro to user register_for_mime_types, ensuring it will also work with the upcoming Files framework changes.
  A bit of final core-level cleanup.
  A bit of final script cleanup.
  Update baselines.
  Add a btest for the PE analyzer.
  Add a PE memleak test, and fix a memleak.
  Documentation and a bit of overall cleanup.
  Add data about which tables are present.
  Remove the .idata parsing, as it can be more complicated in some cases.
  Fix a PE analyzer failure where the IAT isn't aligned with a section boundary.
  PE: Rehash the log a bit.
  Make base_of_data optional.
  Fix support for PE32+ files.
  PE Analyzer cleanup.
  Checkpoint - Import Address Table being parsed.
  Some changes to fix PE analyzer on master.
  Parse PE section headers.
  Updated PE analyzer to work with changes in master.
  In progress checkpoint.  Things are starting to work.
  ...

BIT-1369 #merged
2015-04-20 19:23:31 -07:00
Johanna Amann
a403dbd83e add broker output plugin for openflow (at the moment we more or less
just send the flow_mod event along - there still is no feedback) and add
a testcase for it.

Also fix a few other small problems.
2015-04-20 16:07:00 -07:00
Robin Sommer
ed91732e09 Merge remote-tracking branch 'origin/topic/seth/more-file-type-ident-fixes'
* origin/topic/seth/more-file-type-ident-fixes:
  File API updates complete.
  Fixes for file type identification.
  API changes to file analysis mime type detection.
  Make HTTP 206 reassembly require ETags by default.
  More file type identification improvements
  Fix an issue with files having gaps before the bof_buffer is filled.
  Fix an issue with packet loss in http file reporting.
  Adding WOFF fonts to file type identification.
  Extended JSON matching and added OCSP responses.
  Another large signature update.
  More signature updates.
  Even more file type ident clean up.
  Lots of fixes for file type identification.

BIT-1368 #merged
2015-04-20 13:31:00 -07:00
Johanna Amann
1fb7f5121e Merge remote-tracking branch 'origin/master' into topic/johanna/openflow 2015-04-20 11:27:24 -07:00
Vlad Grigorescu
d5ea6b8457 Add SIP btests. 2015-04-19 22:25:37 -04:00
Vlad Grigorescu
0199ac5ece Add a btest for the PE analyzer. 2015-04-19 20:27:24 -04:00
Vlad Grigorescu
569f43d625 Add Kerberos analyzer btest. 2015-04-17 21:28:22 -04:00
Robin Sommer
d6dda8e984 Merge remote-tracking branch 'origin/topic/johanna/bit-985'
* origin/topic/johanna/bit-985:
  add seeking functionality to raw reader.

BIT-985 #merged
2015-04-17 13:13:45 -07:00
Johanna Amann
cbba73ab12 add seeking functionality to raw reader.
one can now add an option "offset" to the config map. Positive offsets
are interpreted to be from the beginning of the file, negative from the
end of the file (-1 is end of file).

Only works for raw reader in streaming or manual mode. Does not work
with executables.

Addresses BIT-985
2015-04-17 11:19:12 -07:00
Johanna Amann
86c54c3dbd Add high level api for thresholding that holds lists of thresholds
and raises an event for each threshold exactly once.
2015-04-17 06:57:58 -07:00
Robin Sommer
7225221c2a In bifs, change ODesc objects to have RAW_STYLE.
This prevents double-escaping with the logging changes of BIT-1333.
2015-04-16 21:50:50 -07:00
Johanna Amann
d876c044df Add high level api for thresholding that holds lists of thresholds
and raises an event for each threshold exactly once.
2015-04-16 15:36:48 -07:00
Robin Sommer
7344052b50 Changing what's escaped when printing.
With this patch the model is:

    - "print" cleans the data so that non-printable characters get
      escaped. This is not necessarily reversible.

    - to print in a reversible way, one can go through
      escape_string(); this escapes backslashes as well to make the
      decoding non-ambigious.

    - Logging always escapes similar to escape_string(), making it
      reversible.

Compared to master, we also change the escaping as follows:

    - We now only escape with "\xXX", no more "^X" or "\0". Exception:
      backslashes.

    - We escape backlashes as "\\".

    - There's no "alternative" output style anymore, i.e., fmt() '%A'
      qualifier is gone.

Baselines in testing/btest are updated, external tests not yet.

Addresses BIT-1333.
2015-04-15 16:59:50 -07:00
Johanna Amann
236a895418 Update mozilla CA list.
This also patches a few tests to contain certificates that were removed.
Furthermore, we include the old CA file with the external tests and load
it automatically. Those traces are kind of old now, more and more of the
CAs in them are no longer valid and it does not really make sense to
update them on each change...
2015-04-14 16:40:41 -07:00
Johanna Amann
7d7578146f Add basic OpenFlow plugin for Pacf.
This also changes a few types in pacf and adds a few needed bits and
pieces to the OpenFlow framework.

And - it even has a testcase...
2015-04-14 15:24:22 -07:00
Johanna Amann
fd07b0bee9 mainly add a small test to the pacf framework that uses the debug
plugin for shunt / drop rule additions...
2015-04-13 16:45:31 -07:00
Johanna Amann
21b78b7d92 add really simple log output plugin for openflow. 2015-04-13 12:55:38 -07:00
Johanna Amann
46058d0b02 a few small fixes to openflow
*rename module from Openflow to OpenFlow
*add match_conn function to convert conn_id to openflow match
*add a few things back into the openflow records like... table_id
*and - a test
2015-04-10 11:21:55 -07:00
Seth Hall
49926ad7bf Merge remote-tracking branch 'origin/master' into topic/seth/more-file-type-ident-fixes 2015-04-09 23:58:52 -04:00
Seth Hall
89d66af792 Fix an issue with packet loss in http file reporting.
The HTTP analyzer was propogating Gaps to the files framework even
in the case of a packet drop occurring immediately after the headers
are completed in an HTTP response when the response content length
was declared to be zero (no file started, so no loss).

Includes passing test.
2015-04-08 13:39:42 -04:00
Jon Siwek
32ae94de9a Merge remote-tracking branch 'origin/topic/seth/rdp'
* origin/topic/seth/rdp: (31 commits)
  Improved transition into SSL/TLS from RDP.
  Fixes tests in RDP branch.
  add a special case to the X509 code that deals with RDP certificates.
  A few more changes to handling encryption in RDP.
  Adds some comments and fixes a broxygen warning.
  Fixes another optional part of an RDP unit.
  Support RDP negotiation requests optionally and support zero length cookies.
  Changed UTF-16 to UTF-8 conversion to be more lenient.
  Fixed an issue with parse failure on an optional field.
  Removing a stray printf from RDP analyzer.
  Another big RDP update.
  New script to add a field to rdp.log when the connection is upgraded to SSL.
  Huge updates to the RDP analyzer from Josh Liburdi.
  FreeRDP test trace showing SSL encryption -- RDP analyzer does not currently handle this and SSL analyzer does not identify it either
  Wireshark test trace for native encryption -- generates a binpac error
  Delete RDP-004.pcap
  Delete nla_win7_win2k8r2.pcap
  Update dpd.sig
  Fixed typo
  Added check for connection existence
  ...

BIT-1340 #merged
2015-03-30 17:10:04 -05:00
Johanna Amann
f79b5adc08 Merge remote-tracking branch 'origin/topic/vladg/ssh'
I replaced a few strcmps with either calls to std::str.compare
or with the == operator of BroString.

Also changed two of the input framework tests that did not pass
anymore after the merge. The new SSH analyzer no longer loads the
scripts that let network time run, hence those tests failed because
updates were not propagated from the threads (that took a while
to find.)

* origin/topic/vladg/ssh: (25 commits)
  SSH: Register analyzer for 22/tcp.
  SSH: Add 22/tcp to likely_server_ports
  SSH: Ignore encrypted packets by default.
  SSH: Fix some edge-cases which created BinPAC exceptions
  SSH: Add memleak btest
  SSH: Update baselines
  SSH: Added some more events for SSH2
  SSH: Intel framework integration (PUBKEY_HASH)
  Update baselines for new SSH analyzer.
  Update SSH policy scripts with new events.
  SSH: Add documentation
  Refactoring ssh-protocol.pac:
  SSH: Use the compression_algorithms const in another place.
  Some cleanup and refactoring on SSH main.bro.
  SSH: A bit of code cleanup.
  Move SSH constants to consts.pac
  SSH: Cleanup code style.
  SSH: Fix some memleaks.
  Refactored the SSH analyzer. Added supported for algorithm detection and more key exchange message types.
  Add host key support for SSH1.
  Add support for SSH1
  Move SSH analyzer to new plugin architecture.
  ...

Conflicts:
  scripts/base/protocols/ssh/main.bro
  testing/btest/Baseline/core.print-bpf-filters/output2
  testing/btest/Baseline/plugins.hooks/output

BIT-1344: #merged
2015-03-25 11:04:26 -07:00
Robin Sommer
99c50251d4 Merge remote-tracking branch 'origin/topic/johanna/dtls'
* origin/topic/johanna/dtls:
  a few more small script-level fixes
  update test baselines
  add a simple leak test for dtls
  add signature for dtls client hello
  Make the plugin structure more... legal.
  Only force logging of SSL if it actually was the SSL analyzer that failed.
  DTLS working.
  Implement correct parsing of TLS record fragmentation.
  Make handshake analyzer flow-based. This means we can feed data to it in chunks, which makes dealing with fragmentation a little bit more convenient.
  When setting the SSL analyzer to fail, also stop processing data that already has been delivered to the analyzer, not just future data.
  First step for a DTLS analyzer.

BIT-1347 #merged

Conflicts:
	scripts/base/protocols/ssl/main.bro
	testing/btest/Baseline/plugins.hooks/output
2015-03-23 12:40:38 -07:00
Robin Sommer
88165ad72c Merge remote-tracking branch 'origin/topic/johanna/bit-1199'
* origin/topic/johanna/bit-1199:
  add a basic leak test for an unparseable enum
  Change the way the input framework deals with values it cannot convert into BroVals (especially enums)
  Make error message when encountering not existing enums better.

BIT-1199: #merged
2015-03-23 10:25:43 -07:00
Johanna Amann
c27848fc32 Change the way the input framework deals with values it cannot convert
into BroVals (especially enums)

Not we do not force an internal error anymore. Instead, we raise an
normal error and set an error flag that signals to the top-level
functions that the value could not be converted and should not be
propagated to the Bro core. This sadly makes the already messy code even
more messy - but since errors can happen in deeply nested data
structures, the alternative (catching the error at every possible
location and then trying to clean up there instead of recursively
deleting the data that cannot be used later) is much worse.

Addresses BIT-1199
2015-03-19 14:58:38 -07:00
Jon Siwek
8efaae96cd BIT-788: use DNS QR field to better identify flow direction. 2015-03-19 11:53:40 -05:00
Vlad Grigorescu
be6188bf00 SSH: Update baselines 2015-03-18 13:02:33 -04:00
Johanna Amann
991e4f5dc3 DTLS working.
The only thing that is missing is a signature to detect the protocol (it
has no well-known port).

Reassembly is kind of fidgety - at the moment we only support
re-assembling one simultaneous message per direction (which looking at
our test-traffic might not be a problem). And I am not quite sure if I
got all cases correct...

But - it works :)
2015-03-12 15:46:17 -07:00
Johanna Amann
ba27bb54d4 Implement correct parsing of TLS record fragmentation.
Finally. Our test-case is a >400kb certificate with 10,000 alternative
names. :)
2015-03-11 18:23:08 -07:00
Seth Hall
4737b235b6 Merge remote-tracking branch 'origin/master' into topic/seth/rdp 2015-03-05 14:38:34 -05:00
Seth Hall
d361deb975 Merge remote-tracking branch 'origin/master' into topic/seth/rdp 2015-03-04 13:12:45 -05:00
Seth Hall
bbedb73a45 Huge updates to the RDP analyzer from Josh Liburdi.
- More data pulled into scriptland.
  - Logs expanded with client screen resolution and desired color depth.
  - Values in UTF-16 on the wire are converted to UTF-8 before being
    sent to scriptland.
  - If the RDP turns into SSL records, we now pass data that appears
    to be SSL to the PIA analyzer.
  - If RDP uses native encryption with X.509 certs we pass those
    certs to the files framework and the base scripts pass them forward
    to the X.509 analyzer.
  - Lots of cleanup and adjustment to fit the documented protocol
    a bit better.
  - Cleaned up the DPD signatures.
  - Moved to flowunit instead of datagram.
  - Added tests.
2015-03-04 13:12:03 -05:00
Johanna Amann
e48c6ccc4a Do not log common name by default (it is most interesting for scripts)
and add a test case.
2015-03-03 16:38:25 -08:00
Robin Sommer
6350d330f3 Merge remote-tracking branch 'origin/fastpath'
* origin/fastpath:
  Crashing bug in WriterBackend when deserializing WriterInfo where config is present. Testcase crashes on unpatched versions of Bro.
  Fix wrong value test in WriterBackend. Found by Aaron Eppert (aeppert@gmail.com)
2015-02-23 16:33:58 -08:00
Robin Sommer
5dea09b7c1 Baseline updates for the addition of local_resp.
That patch is a strong contender for the smallest ever ratio of
lines-of-code-changed to lines-of-baselines-updated. :-)
2015-02-23 16:25:11 -08:00
Johanna Amann
ee290c3d7a Crashing bug in WriterBackend when deserializing WriterInfo where config
is present. Testcase crashes on unpatched versions of Bro.

Found by Aaron Eppert <aeppert@gmail.com>.

This (probably) fixes the crash issue with sqlite a few people have
reported on the mailing list in the past.
2015-02-23 13:54:44 -08:00
Jon Siwek
212368b245 Merge remote-tracking branch 'origin/topic/jsiwek/socks-authentication'
* origin/topic/jsiwek/socks-authentication:
  Refactor SOCKS5 user/pass authentication support.
  Update the SOCKS analyzer to support user/pass login.

BIT-1011 #merged
2015-02-13 09:15:50 -06:00
Seth Hall
9592f64225 Update the SOCKS analyzer to support user/pass login.
- This addresses BIT-1011
 - Add a new field to socks.log; "password".
 - Two new events; socks_login_userpass and socks_login_reply.
 - One new weird for unsupported authentication method.
 - A new test for authenticated socks traffic.
 - Credit to Nicolas Retrain for the initial patch.  Thanks!
2015-02-05 12:44:10 -05:00
Seth Hall
a97cd1f3a2 Fix a bug in the core files framework with handling the BOF buffer.
- Any files where the total size was below the size of the
   default bof_buffer size couldn't have stream analyzers successfully
   attached because the bof_buffer never reached the full size
   and was never flushed.  This branch explicitly marks the buf_buffer
   as full and flushes it when the file is being removed.
2015-02-05 09:09:08 -05:00
Jon Siwek
23f04835c6 Deprecate split* family of BIFs.
These functions are now deprecated in favor of alternative versions that
return a vector of strings rather than a table of strings.

Deprecated functions:

- split: use split_string instead.
- split1: use split_string1 instead.
- split_all: use split_string_all instead.
- split_n: use split_string_n instead.
- cat_string_array: see join_string_vec instead.
- cat_string_array_n: see join_string_vec instead.
- join_string_array: see join_string_vec instead.
- sort_string_array: use sort instead instead.
- find_ip_addresses: use extract_ip_addresses instead.

Changed functions:

- has_valid_octets: uses a string_vec parameter instead of string_array.

Addresses BIT-924, BIT-757.
2015-01-21 15:34:42 -06:00
Robin Sommer
41ff1c4cd0 Merge remote-tracking branch 'origin/topic/robin/dnp3-merge-v4'
* origin/topic/robin/dnp3-merge-v4:
  add test trace in which DNP3 packets are over UDP; update test scripts and baseline results
  A bit more DNP3 tweaking.
  remove redundnt codes; find a way to use the analyzer function, such as Weird; fix a small bug in ProcessData function in DNP3.cc; passed the test
  Renameing the DNP3 TCP analyzer
  quickly fix another bug; adding missing field of the declaration of dnp3_request_application_header and dnp3_response_application_header
  Removing the debug printf in DNP3.cc
  fixed the bug of deciding the size of object 1 varition 1 in DNP3
  Fix some things in DNP3 UDP analyzer.
  changed a bug, but still not working
  modify DNP3.cc and DNP3.h to add DNP3_UDP_Analyzer; binpac unchanged

BIT-1231 #merged
2015-01-14 13:25:42 -08:00
Hui Lin
794273913f add test trace in which DNP3 packets are over UDP; update test scripts and baseline results 2015-01-07 15:04:22 -06:00
Jon Siwek
a3d78cc830 Revert "Workaround race condition in unified2 file module."
This reverts commit 1a03a95f35.
2015-01-05 14:51:58 -06:00
Jon Siwek
1a03a95f35 Workaround race condition in unified2 file module.
This makes the unit test pass consistently, but need to see about
fixing it in the unified2 file module directly.
2014-12-17 09:57:06 -06:00