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Updates related to SSH analysis.

Browse source 
- Some scripts used wrong SSH module/namespace scoping on events.
- Fix outdated notice documentation related to SSH password guessing.
- Add a unit test for SSH pasword guessing notice.
This commit is contained in:
Jon Siwek 2015-03-30 11:26:32 -05:00
parent 97962d25f2
commit dcbd0819a6
18 changed files with 112 additions and 22 deletions
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14
testing/btest/Baseline/doc.sphinx.include-doc_frameworks_notice_ssh_guesser_bro/output Normal file
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@ -0,0 +1,14 @@
# @TEST-EXEC: cat %INPUT >output && btest-diff output
notice_ssh_guesser.bro
@load protocols/ssh/detect-bruteforcing
redef SSH::password_guesses_limit=10;
hook Notice::policy(n: Notice::Info)
{
if ( n$note == SSH::Password_Guessing && /192\.168\.56\.103/ in n$sub )
add n$actions[Notice::ACTION_EMAIL];
}

2
testing/btest/Baseline/doc.sphinx.include-scripts_policy_protocols_ssh_interesting-hostnames_bro/output
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@ -31,7 +31,7 @@ export {
/^ftp[0-9]*\./ &redef;
}
event SSH::heuristic_successful_login(c: connection)
event ssh_auth_successful(c: connection, auth_method_none: bool)
{
for ( host in set(c$id$orig_h, c$id$resp_h) )
{

26
testing/btest/Baseline/doc.sphinx.notice_ssh_guesser.bro/btest-doc.sphinx.notice_ssh_guesser.bro#1 Normal file
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@ -0,0 +1,26 @@
.. rst-class:: btest-cmd
.. code-block:: none
:linenos:
:emphasize-lines: 1,1
# bro -C -r ssh/sshguess.pcap notice_ssh_guesser.bro
.. rst-class:: btest-cmd
.. code-block:: none
:linenos:
:emphasize-lines: 1,1
# cat notice.log
#separator \x09
#set_separator ,
#empty_field (empty)
#unset_field -
#path notice
#open 2015-03-30-16-20-23
#fields ts uid id.orig_h id.orig_p id.resp_h id.resp_p fuid file_mime_type file_desc proto note msg sub src dst p n peer_descr actions suppress_for dropped remote_location.country_code remote_location.region remote_location.city remote_location.latitude remote_location.longitude
#types time string addr port addr port string string string enum enum string string addr addr port count string set[enum] interval bool string string string double double
1427726711.398575 - - - - - - - - - SSH::Password_Guessing 192.168.56.1 appears to be guessing SSH passwords (seen in 10 connections). Sampled servers: 192.168.56.103, 192.168.56.103, 192.168.56.103, 192.168.56.103, 192.168.56.103 192.168.56.1 - - - bro Notice::ACTION_EMAIL,Notice::ACTION_LOG 3600.000000 F - - - - -
#close 2015-03-30-16-20-23

10
testing/btest/Baseline/scripts.policy.protocols.ssh.detect-bruteforcing/notice.log Normal file
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@ -0,0 +1,10 @@
#separator \x09
#set_separator ,
#empty_field (empty)
#unset_field -
#path notice
#open 2015-03-30-15-43-30
#fields ts uid id.orig_h id.orig_p id.resp_h id.resp_p fuid file_mime_type file_desc proto note msg sub src dst p n peer_descr actions suppress_for dropped remote_location.country_code remote_location.region remote_location.city remote_location.latitude remote_location.longitude
#types time string addr port addr port string string string enum enum string string addr addr port count string set[enum] interval bool string string string double double
1427726711.398575 - - - - - - - - - SSH::Password_Guessing 192.168.56.1 appears to be guessing SSH passwords (seen in 10 connections). Sampled servers: 192.168.56.103, 192.168.56.103, 192.168.56.103, 192.168.56.103, 192.168.56.103 192.168.56.1 - - - bro Notice::ACTION_LOG 3600.000000 F - - - - -
#close 2015-03-30-15-43-30

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testing/btest/Traces/ssh/sshguess.pcap Normal file
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14
testing/btest/doc/sphinx/include-doc_frameworks_notice_ssh_guesser_bro.btest Normal file
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# @TEST-EXEC: cat %INPUT >output && btest-diff output
notice_ssh_guesser.bro
@load protocols/ssh/detect-bruteforcing
redef SSH::password_guesses_limit=10;
hook Notice::policy(n: Notice::Info)
{
if ( n$note == SSH::Password_Guessing && /192\.168\.56\.103/ in n$sub )
add n$actions[Notice::ACTION_EMAIL];
}

2
testing/btest/doc/sphinx/include-scripts_policy_protocols_ssh_interesting-hostnames_bro.btest
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@ -31,7 +31,7 @@ export {
/^ftp[0-9]*\./ &redef;
}
event SSH::heuristic_successful_login(c: connection)
event ssh_auth_successful(c: connection, auth_method_none: bool)
{
for ( host in set(c$id$orig_h, c$id$resp_h) )
{

2
testing/btest/doc/sphinx/notice_ssh_guesser.bro.btest Normal file
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@ -0,0 +1,2 @@
@TEST-EXEC: btest-rst-cmd bro -C -r ${TRACES}/ssh/sshguess.pcap ${DOC_ROOT}/frameworks/notice_ssh_guesser.bro
@TEST-EXEC: btest-rst-cmd cat notice.log

5
testing/btest/scripts/policy/protocols/ssh/detect-bruteforcing.bro Normal file
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@ -0,0 +1,5 @@
# @TEST-EXEC: bro -C -r $TRACES/ssh/sshguess.pcap %INPUT
# @TEST-EXEC: btest-diff notice.log
@load protocols/ssh/detect-bruteforcing
redef SSH::password_guesses_limit=10;