mirror of
https://github.com/zeek/zeek.git
synced 2025-10-02 06:38:20 +00:00
Hopefully the last major script reorganization.
- policy/ renamed to scripts/ - By default BROPATH now contains: - scripts/ - scripts/policy - scripts/site - *Nearly* all tests pass. - All of scripts/base/ is loaded by main.cc - Can be disabled by setting $BRO_NO_BASE_SCRIPTS - Scripts in scripts/base/ don't use relative path loading to ease use of BRO_NO_BASE_SCRIPTS (to copy and paste that script). - The scripts in scripts/base/protocols/ only (or soon will only) do logging and state building. - The scripts in scripts/base/frameworks/ add functionality without causing any additional overhead. - All "detection" activity happens through scripts in scripts/policy/. - Communications framework modified temporarily to need an environment variable to actually enable (ENABLE_COMMUNICATION=1) - This is so the communications framework can be loaded as part of the base without causing trouble when it's not needed. - This will be removed once a resolution to ticket #540 is reached.
This commit is contained in:
Seth Hall
parent
68171cf179
commit
597a4d6704
257 changed files with 1311 additions and 1225 deletions
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@ -176,7 +176,7 @@ include_directories(${CMAKE_CURRENT_BINARY_DIR})
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## Recurse on sub-directories
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add_subdirectory(src)
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add_subdirectory(policy)
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add_subdirectory(scripts)
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add_subdirectory(doc)
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include(CheckOptionalBuildSources)
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@ -10,7 +10,7 @@
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# BROPATH=`./bro-path-dev` ./src/bro
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#
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broPolicies=${PROJECT_SOURCE_DIR}/policy:${PROJECT_SOURCE_DIR}/policy/site
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broPolicies=${PROJECT_SOURCE_DIR}/scripts:${PROJECT_SOURCE_DIR}/scripts/policy:${PROJECT_SOURCE_DIR}/scripts/site
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broGenPolicies=${CMAKE_BINARY_DIR}/src
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@ -42,7 +42,7 @@
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# is taken as the summary text for a given identifier.
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# @load directives are self-documenting
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@load frameworks/notice
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@load frameworks/software/vulnerable
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# "module" statements are self-documenting
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module Example;
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@ -1 +0,0 @@
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@load frameworks/cluster/base
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@ -1 +0,0 @@
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@load frameworks/communication/base
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@ -1 +0,0 @@
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@load frameworks/communication/base/main
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@ -1 +0,0 @@
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@load frameworks/control/base
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@ -1,2 +0,0 @@
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@load frameworks/control/base/main
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@ -1 +0,0 @@
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@load frameworks/dpd/base
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@ -1 +0,0 @@
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@load frameworks/dpd/base/main
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@ -1 +0,0 @@
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@load frameworks/intel/base
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@ -1,3 +0,0 @@
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@load frameworks/logging/base
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@load frameworks/logging/plugins/ascii
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@ -1 +0,0 @@
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@load frameworks/metrics/base
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@ -1 +0,0 @@
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@load frameworks/metrics/base/main
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@ -1,5 +0,0 @@
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@load ./base
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# Load the script to add hostnames to emails by default.
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# NOTE: this exposes a memleak in async DNS lookups.
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#@load ./extend-email/hostnames
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@ -1,131 +0,0 @@
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##! A few predefined notice_action_filters.
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##! This is completely and utterly not working right now!!!!!
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@load ./base
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module Notice;
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export {
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const ignore_tallies_at_shutdown = T &redef;
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const notice_once_per_orig_tally_interval = 1hr &redef;
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global tallies: table[string] of count &default = 0;
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## Reports a specific NoticeType the first time we see it for a source.
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## From then on, tally instances per source.
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#global notice_once_per_orig: table[Info, addr] of count
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# &default=0 &read_expire=5hrs;
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global ignore_it: function(nt: Notice::Type): Notice::PolicyItem;
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global file_it: function(nt: Notice::Type): Notice::PolicyItem;
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global send_email: function(nt: Notice::Type): Notice::PolicyItem;
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global send_page: function(nt: Notice::Type): Notice::PolicyItem;
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global tally_notice_type: function(nt: Notice::Type): Notice::PolicyItem;
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global tally_notice_type_and_ignore: function(nt: Notice::Type): Notice::PolicyItem;
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global file_local_bro_notices: function(nt: Notice::Type): Notice::PolicyItem;
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global file_if_remote: function(nt: Notice::Type): Notice::PolicyItem;
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}
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function action2policy_item(nt: Notice::Type, action: Notice::Action): Notice::PolicyItem
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{
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return [$result=action,
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$pred(n: Notice::Info) = { return n$note == nt; },
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$priority=5];
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}
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function ignore_it(nt: Notice::Type): Notice::PolicyItem
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{
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return action2policy_item(nt, ACTION_IGNORE);
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}
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function file_it(nt: Notice::Type): Notice::PolicyItem
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{
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return action2policy_item(nt, ACTION_FILE);
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}
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function send_email(nt: Notice::Type): Notice::PolicyItem
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{
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return action2policy_item(nt, ACTION_EMAIL);
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}
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function send_page_action(nt: Notice::Type): Notice::PolicyItem
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{
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return action2policy_item(nt, ACTION_PAGE);
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}
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#function tally_notice(s: string)
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# {
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# ++tallies[s];
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# }
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#
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#function tally_notice_type(nt: Notice::Type): Notice::PolicyItem
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# {
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# tally_notice(fmt("%s", n$note));
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# return action2policy_item(nt, ACTION_FILE);
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# }
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#
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#function tally_notice_type_and_ignore(nt: Notice::Type): Notice::PolicyItem
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# {
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# tally_notice(fmt("%s", n$note));
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# return action2policy_item(nt, ACTION_IGNORE);
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# }
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#
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#function file_local_bro_notices(nt: Notice::Type): Notice::PolicyItem
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# {
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# if ( n$src_peer$is_local )
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# return action2policy_item(nt, ACTION_FILE);
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# else
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# return action2policy_item(nt, n$action);
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# }
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#
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#function file_if_remote(nt: Notice::Type): Notice::PolicyItem
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# {
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# if ( n?$src && ! is_local_addr(n$src) )
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# return action2policy_item(nt, ACTION_FILE);
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# else
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# return action2policy_item(nt, n$action);
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# }
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#event notice_alarm_per_orig_tally(n: Notice::Info, host: addr)
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# {
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# local i = notice_once_per_orig[n$note, host];
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# if ( i > 1 )
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# {
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# local msg = fmt("%s seen %d time%s from %s",
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# n$note, i, i > 1 ? "s" : "", host);
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# NOTICE([$note=Notice_Tally, $msg=msg, $src=host, $n=i]);
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# }
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# }
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#
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#function notice_alarm_per_orig(n: Notice::Info, a: Notice::Action): Notice::Action
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# {
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# local host = n$src;
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#
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# ++notice_once_per_orig[n$note, host];
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#
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# if ( notice_once_per_orig[n$note, host] > 1 )
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# return ACTION_FILE;
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#
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# schedule notice_once_per_orig_tally_interval
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# { notice_alarm_per_orig_tally(n, host) };
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#
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# return ACTION_ALARM_ALWAYS;
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# }
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event bro_done()
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{
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if ( ignore_tallies_at_shutdown )
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return;
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for ( s in tallies )
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{
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local n = tallies[s];
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local msg = fmt("%s (%d time%s)", s, n, n > 1 ? "s" : "");
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NOTICE([$note=Notice::Tally, $msg=msg, $n=n]);
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}
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}
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@ -1 +0,0 @@
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@load frameworks/packet-filter/base
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@ -1 +0,0 @@
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@load frameworks/packet-filter/base/main
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@ -1 +0,0 @@
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@load frameworks/reporter/base
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@ -1,3 +0,0 @@
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@load frameworks/signatures/base
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redef signature_files += "frameworks/signatures/detect-windows-shells.sig";
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@ -1 +0,0 @@
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@load frameworks/software/base
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@ -1 +0,0 @@
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@load frameworks/software/base/main
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@ -1,2 +0,0 @@
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@load protocols/conn/base
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@ -1,3 +0,0 @@
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@load protocols/conn/base/main
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@load protocols/conn/base/contents
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@load protocols/conn/base/inactivity
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@ -1 +0,0 @@
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@load protocols/dns/base
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@ -1,4 +0,0 @@
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@load protocols/dns/base/consts
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@load protocols/dns/base/main
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@load protocols/dns/base/detect
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@ -1,5 +0,0 @@
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@load protocols/ftp/utils-commands
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@load protocols/ftp/base
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@load protocols/ftp/detect
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@load protocols/ftp/software
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@load protocols/ftp/file-extract
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@ -1,4 +0,0 @@
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##! This script is the wrapper script for HTTP analysis.
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##! :Author: Seth Hall <seth@icir.org> - Inspired by the work of many others.
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@load protocols/http/base
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@ -1,7 +0,0 @@
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@load protocols/http/base/main
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@load protocols/http/base/detect-sqli
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@load protocols/http/base/detect-intel
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@load protocols/http/base/file-ident
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@load protocols/http/base/file-hash
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@load protocols/http/base/file-extract
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@load protocols/http/base/software
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@ -1,54 +0,0 @@
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##! SQL injection detection in HTTP.
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@load frameworks/metrics
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@load ./main
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module HTTP;
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export {
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redef enum Notice::Type += {
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SQL_Injection_Attacker,
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SQL_Injection_Attack,
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};
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redef enum Metrics::ID += {
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SQL_ATTACKER,
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SQL_ATTACK_AGAINST,
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};
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redef enum Tags += {
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## Indicator of a URI based SQL injection attack.
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URI_SQLI,
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## Indicator of client body based SQL injection attack. This is
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## typically the body content of a POST request. Not implemented yet!
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POST_SQLI,
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## Indicator of a cookie based SQL injection attack. Not implemented yet!
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COOKIE_SQLI,
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};
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## This regular expression is used to match URI based SQL injections
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const match_sql_injection_uri =
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/[\?&][^[:blank:]\|]+?=[\-0-9%]+([[:blank:]]|\/\*.*?\*\/)*['"]?([[:blank:]]|\/\*.*?\*\/|\)?;)+([hH][aA][vV][iI][nN][gG]|[uU][nN][iI][oO][nN]|[eE][xX][eE][cC]|[sS][eE][lL][eE][cC][tT]|[dD][eE][lL][eE][tT][eE]|[dD][rR][oO][pP]|[dD][eE][cC][lL][aA][rR][eE]|[cC][rR][eE][aA][tT][eE]|[iI][nN][sS][eE][rR][tT])[^a-zA-Z&]/
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| /[\?&][^[:blank:]\|]+?=[\-0-9%]+([[:blank:]]|\/\*.*?\*\/)*['"]?([[:blank:]]|\/\*.*?\*\/|\)?;)+([xX]?[oO][rR]|[aA][nN][dD])([[:blank:]]|\/\*.*?\*\/)+['"]?[^a-zA-Z&]+?=/
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| /[\?&][^[:blank:]]+?=[\-0-9%]*([[:blank:]]|\/\*.*?\*\/)*['"]([[:blank:]]|\/\*.*?\*\/)*(\-|\+|\|\|)([[:blank:]]|\/\*.*?\*\/)*([0-9]|\(?[cC][oO][nN][vV][eE][rR][tT]|[cC][aA][sS][tT])/
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| /[\?&][^[:blank:]\|]+?=([[:blank:]]|\/\*.*?\*\/)*['"]([[:blank:]]|\/\*.*?\*\/|;)*([xX]?[oO][rR]|[aA][nN][dD]|[hH][aA][vV][iI][nN][gG]|[uU][nN][iI][oO][nN]|[eE][xX][eE][cC]|[sS][eE][lL][eE][cC][tT]|[dD][eE][lL][eE][tT][eE]|[dD][rR][oO][pP]|[dD][eE][cC][lL][aA][rR][eE]|[cC][rR][eE][aA][tT][eE]|[rR][eE][gG][eE][xX][pP]|[iI][nN][sS][eE][rR][tT]|\()[^a-zA-Z&]/
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| /[\?&][^[:blank:]]+?=[^\.]*?([cC][hH][aA][rR]|[aA][sS][cC][iI][iI]|[sS][uU][bB][sS][tT][rR][iI][nN][gG]|[tT][rR][uU][nN][cC][aA][tT][eE]|[vV][eE][rR][sS][iI][oO][nN]|[lL][eE][nN][gG][tT][hH])\(/ &redef;
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}
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event bro_init()
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{
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Metrics::add_filter(SQL_ATTACKER, [$break_interval=5mins, $note=SQL_Injection_Attack]);
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Metrics::add_filter(SQL_ATTACK_AGAINST, [$break_interval=5mins, $note=SQL_Injection_Attack]);
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}
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event http_request(c: connection, method: string, original_URI: string,
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unescaped_URI: string, version: string) &priority=3
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{
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if ( match_sql_injection_uri in unescaped_URI )
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{
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add c$http$tags[URI_SQLI];
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Metrics::add_data(SQL_ATTACKER, [$host=c$id$orig_h], 1);
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Metrics::add_data(SQL_ATTACK_AGAINST, [$host=c$id$resp_h], 1);
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}
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}
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@ -1,2 +0,0 @@
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@load protocols/irc/base
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@load protocols/irc/dcc-send
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@ -1,4 +0,0 @@
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@load protocols/smtp/base
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# This should be optional
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@load protocols/smtp/detect-suspicious-orig
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@ -1,2 +0,0 @@
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@load protocols/smtp/base/main
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@load protocols/smtp/base/software
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@ -1,2 +0,0 @@
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@load protocols/ssh/base
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@load protocols/ssh/software
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@ -1,4 +0,0 @@
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@load protocols/ssl/consts
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@load protocols/ssl/base
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@load protocols/ssl/mozilla-ca-list
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@load protocols/ssl/known-certs
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@ -1,351 +0,0 @@
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##! SSL connections
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@load notice
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@load ssl-ciphers
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@load ssl-errors
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module SSL;
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redef enum Notice::Type += {
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## Blanket X509 error
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SSL_X509Violation,
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## Session data not consistent with connection
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SSL_SessConIncon,
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};
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redef enum Log::ID += { SSL };
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export {
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type Tags: enum {
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WEAK_CLIENT_CIPHER,
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WEAK_SERVER_CIPHER,
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WEAK_CIPHER_AGREED
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};
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type Info: record {
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ts: time &log;
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id: conn_id &log;
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## This is the session ID. It's optional because SSLv2 doesn't have it.
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sid: string &log &optional;
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# TODO: dga 3/11 The following 2 fields are not yet picked up
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#not_valid_before: time &log &optional; ##< certificate valid time constraint
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#not_valid_after: time &log &optional; ##< certificate valid time constraint
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version: string &log &default="UNKNOWN"; ##< SSL/TLS version number
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client_cert: X509 &log &optional; ##< client certificate
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server_cert: X509 &log &optional; ##< server certificate
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handshake_cipher: string &log &optional; ##< agreed-upon cipher for session/conn.
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tags: set[Tags] &log;
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};
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type SessionInfo: record {
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## This tracks the number of times this session has been used.
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num_use: count &default=1;
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version: string &default=""; # version associated with connection
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client_cert: X509 &optional; # client certificate
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server_cert: X509 &optional; # server certificate
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handshake_cipher: string &default=""; # agreed-upon cipher for session/conn.
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};
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## Certificates presented by which hosts to record.
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## Choices are: LOCAL_HOSTS, REMOTE_HOSTS, ALL_HOSTS, NO_HOSTS
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const asset_tracking = default_asset_tracking &redef;
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# If set to T, this will split local and remote certs
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# into separate files. F merges everything into a single file.
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#const split_log_file = F &redef;
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# If true, Bro stores the client and server cipher specs and performs
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# additional tests. This costs an extra amount of memory (normally
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# only for a short time) but enables detecting of non-intersecting
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# cipher sets, for example.
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const ssl_compare_cipherspecs = T &redef;
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# Whether to analyze certificates seen in SSL connections.
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const ssl_analyze_certificates = T &redef;
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# If we analyze SSL certificates, we can choose to store them.
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const ssl_store_certificates = T &redef;
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# Path where we dump the certificates into. If it's empty,
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# use the current directory.
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const ssl_store_cert_path = "certs" &redef;
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# If we analyze SSL certificates, we can choose to verify them.
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const ssl_verify_certificates = T &redef;
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# This is the path where OpenSSL looks after the trusted certificates.
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# If empty, the default path will be used.
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const x509_trusted_cert_path = "" &redef;
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# Whether to store key-material exchanged in the handshaking phase.
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const ssl_store_key_material = F &redef;
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## The list of all detected X509 certs.
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||||
global certs: set[addr, port, string] &create_expire=1day &synchronized;
|
||||
|
||||
## Recent TLS session IDs
|
||||
global recent_sessions: table[string] of SessionInfo &read_expire=1hr;
|
||||
|
||||
global log_ssl: event(rec: Info);
|
||||
|
||||
## This is the set of SSL/TLS ciphers are are seen as weak to attack.
|
||||
const weak_ciphers: set[count] = {
|
||||
SSLv20_CK_RC4_128_EXPORT40_WITH_MD5,
|
||||
SSLv20_CK_RC2_128_CBC_EXPORT40_WITH_MD5,
|
||||
SSLv20_CK_DES_64_CBC_WITH_MD5,
|
||||
|
||||
TLS_NULL_WITH_NULL_NULL,
|
||||
TLS_RSA_WITH_NULL_MD5,
|
||||
TLS_RSA_WITH_NULL_SHA,
|
||||
TLS_RSA_EXPORT_WITH_RC4_40_MD5,
|
||||
TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5,
|
||||
TLS_RSA_EXPORT_WITH_DES40_CBC_SHA,
|
||||
TLS_RSA_WITH_DES_CBC_SHA,
|
||||
|
||||
TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA,
|
||||
TLS_DH_DSS_WITH_DES_CBC_SHA,
|
||||
TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA,
|
||||
TLS_DH_RSA_WITH_DES_CBC_SHA,
|
||||
TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA,
|
||||
TLS_DHE_DSS_WITH_DES_CBC_SHA,
|
||||
TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA,
|
||||
TLS_DHE_RSA_WITH_DES_CBC_SHA,
|
||||
|
||||
TLS_DH_ANON_EXPORT_WITH_RC4_40_MD5,
|
||||
TLS_DH_ANON_WITH_RC4_128_MD5,
|
||||
TLS_DH_ANON_EXPORT_WITH_DES40_CBC_SHA,
|
||||
TLS_DH_ANON_WITH_DES_CBC_SHA,
|
||||
TLS_DH_ANON_WITH_3DES_EDE_CBC_SHA,
|
||||
} &redef;
|
||||
|
||||
const SSLv2 = 0x0002;
|
||||
const SSLv3 = 0x0300;
|
||||
const TLSv10 = 0x0301;
|
||||
const TLSv11 = 0x0302;
|
||||
const version_strings: table[count] of string = {
|
||||
[SSLv2] = "SSLv2",
|
||||
[SSLv3] = "SSLv3",
|
||||
[TLSv10] = "TLSv10",
|
||||
[TLSv11] = "TLSv11",
|
||||
} &default="UNKNOWN";
|
||||
|
||||
}
|
||||
|
||||
redef record connection += {
|
||||
ssl: Info &optional;
|
||||
};
|
||||
|
||||
# NOTE: this is a 'local' port format for your site
|
||||
# --- well-known ports for ssl ---------
|
||||
redef capture_filters += {
|
||||
["ssl"] = "tcp port 443",
|
||||
["nntps"] = "tcp port 563",
|
||||
["imap4-ssl"] = "tcp port 585",
|
||||
["sshell"] = "tcp port 614",
|
||||
["ldaps"] = "tcp port 636",
|
||||
["ftps-data"] = "tcp port 989",
|
||||
["ftps"] = "tcp port 990",
|
||||
["telnets"] = "tcp port 992",
|
||||
["imaps"] = "tcp port 993",
|
||||
["ircs"] = "tcp port 994",
|
||||
["pop3s"] = "tcp port 995"
|
||||
};
|
||||
|
||||
global ssl_ports = {
|
||||
443/tcp, 563/tcp, 585/tcp, 614/tcp, 636/tcp,
|
||||
989/tcp, 990/tcp, 992/tcp, 993/tcp, 995/tcp,
|
||||
};
|
||||
redef dpd_config += { [ANALYZER_SSL] = [$ports = ssl_ports] };
|
||||
redef dpd_config += { [ANALYZER_SSL_BINPAC] = [$ports = ssl_ports] };
|
||||
|
||||
event bro_init()
|
||||
{
|
||||
Log::create_stream(SSL, [$columns=Info, $ev=log_ssl] );
|
||||
|
||||
# The event engine will generate a run-time if this fails for
|
||||
# reasons other than that the directory already exists.
|
||||
if ( ssl_store_cert_path != "" )
|
||||
mkdir(ssl_store_cert_path);
|
||||
}
|
||||
|
||||
const x509_ignore_errors: set[int] = {
|
||||
X509_V_OK,
|
||||
# X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE
|
||||
};
|
||||
|
||||
const x509_hot_errors: set[int] = {
|
||||
X509_V_ERR_CRL_SIGNATURE_FAILURE,
|
||||
X509_V_ERR_CERT_NOT_YET_VALID,
|
||||
X509_V_ERR_CERT_HAS_EXPIRED,
|
||||
X509_V_ERR_CERT_REVOKED,
|
||||
X509_V_ERR_SUBJECT_ISSUER_MISMATCH,
|
||||
# X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE # for testing
|
||||
};
|
||||
|
||||
@ifdef ( Weird::weird_file )
|
||||
redef Weird::weird_action += {
|
||||
[["SSLv2: Unknown CIPHER-SPEC in CLIENT-HELLO!",
|
||||
"SSLv2: Client has CipherSpecs > MAX_CIPHERSPEC_SIZE",
|
||||
"unexpected_SSLv3_record",
|
||||
"SSLv3_data_without_full_handshake"]] = Weird::WEIRD_IGNORE
|
||||
};
|
||||
@endif
|
||||
|
||||
function set_session(c: connection)
|
||||
{
|
||||
local id = c$id;
|
||||
|
||||
if ( ! c?$ssl )
|
||||
{
|
||||
local info: Info;
|
||||
info$ts=network_time();
|
||||
info$id=id;
|
||||
c$ssl = info;
|
||||
}
|
||||
}
|
||||
|
||||
function get_session_info(s: SSL_sessionID): SessionInfo
|
||||
{
|
||||
local sess_info: SessionInfo;
|
||||
|
||||
local index = md5_hash(s);
|
||||
recent_sessions[index] = sess_info;
|
||||
return sess_info;
|
||||
}
|
||||
|
||||
event ssl_certificate(c: connection, cert: X509, is_server: bool)
|
||||
{
|
||||
set_session(c);
|
||||
|
||||
if ( [c$id$resp_h, c$id$resp_p, cert$subject] !in certs )
|
||||
add certs[c$id$resp_h, c$id$resp_p, cert$subject];
|
||||
|
||||
if( is_server )
|
||||
{
|
||||
c$ssl$server_cert = cert;
|
||||
|
||||
# We have not filled in the field for the master session
|
||||
# for this connection. Do it now, but only if this is not a
|
||||
# SSLv2 connection (no session information in that case).
|
||||
if ( c$ssl$sid in recent_sessions &&
|
||||
recent_sessions[c$ssl$sid]?$server_cert )
|
||||
recent_sessions[c$ssl$sid]$server_cert$subject = cert$subject;
|
||||
}
|
||||
else
|
||||
{
|
||||
c$ssl$client_cert = cert;
|
||||
}
|
||||
}
|
||||
|
||||
event ssl_conn_attempt(c: connection, version: count, ciphers: cipher_suites_list)
|
||||
{
|
||||
set_session(c);
|
||||
|
||||
c$ssl$version = version_strings[version];
|
||||
|
||||
for ( cs in ciphers )
|
||||
{
|
||||
if ( cs in weak_ciphers )
|
||||
{
|
||||
add c$ssl$tags[WEAK_CLIENT_CIPHER];
|
||||
#event ssl_conn_weak(
|
||||
# fmt("SSL client supports weak cipher: %s (0x%x)",
|
||||
# ssl_cipher_desc[cs], cs), c);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
event ssl_conn_server_reply(c: connection, version: count,
|
||||
ciphers: cipher_suites_list)
|
||||
{
|
||||
set_session(c);
|
||||
|
||||
#conn$log$version = version_strings[version];
|
||||
|
||||
for ( cs in ciphers )
|
||||
{
|
||||
if ( cs in weak_ciphers )
|
||||
{
|
||||
add c$ssl$tags[WEAK_SERVER_CIPHER];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
event ssl_conn_established(c: connection, version: count, cipher_suite: count) &priority=1
|
||||
{
|
||||
set_session(c);
|
||||
|
||||
c$ssl$version = version_strings[version];
|
||||
|
||||
if ( cipher_suite in weak_ciphers )
|
||||
add c$ssl$tags[WEAK_CIPHER_AGREED];
|
||||
|
||||
# log the connection
|
||||
Log::write(SSL, c$ssl);
|
||||
}
|
||||
|
||||
event process_X509_extensions(c: connection, ex: X509_extension)
|
||||
{
|
||||
set_session(c);
|
||||
|
||||
#local msg = fmt( "%.6f X.509 extensions: ", network_time() );
|
||||
#for ( i in ex )
|
||||
# msg = fmt("%s, %s", msg, ex[i]);
|
||||
}
|
||||
|
||||
event ssl_session_insertion(c: connection, id: SSL_sessionID)
|
||||
{
|
||||
set_session(c);
|
||||
|
||||
local cid = c$id;
|
||||
c$ssl$sid=md5_hash(id);
|
||||
|
||||
# This will create a new session if one doesn't already exist.
|
||||
local session = get_session_info(id);
|
||||
session$version=c$ssl$version;
|
||||
if ( c$ssl?$client_cert ) session$client_cert=c$ssl$client_cert;
|
||||
if ( c$ssl?$server_cert ) session$server_cert=c$ssl$server_cert;
|
||||
if ( c$ssl?$handshake_cipher )session$handshake_cipher=c$ssl$handshake_cipher;
|
||||
}
|
||||
|
||||
event ssl_conn_reused(c: connection, session_id: SSL_sessionID)
|
||||
{
|
||||
set_session(c);
|
||||
|
||||
# We cannot track sessions with SSLv2.
|
||||
if ( c$ssl$version == version_strings[SSLv2] )
|
||||
return;
|
||||
|
||||
local session = get_session_info(session_id);
|
||||
++session$num_use;
|
||||
|
||||
# At this point, the connection values have been set. We can then
|
||||
# compare session and connection values with some confidence.
|
||||
if ( session$version != c$ssl$version ||
|
||||
session$handshake_cipher != c$ssl$handshake_cipher )
|
||||
{
|
||||
NOTICE([$note=SSL_SessConIncon, $conn=c, $msg="session violation"]);
|
||||
}
|
||||
}
|
||||
|
||||
event ssl_X509_error(c: connection, err: int, err_string: string)
|
||||
{
|
||||
if ( err in x509_ignore_errors )
|
||||
return;
|
||||
|
||||
set_session(c);
|
||||
|
||||
local error =
|
||||
err in x509_errors ? x509_errors[err] : "unknown X.509 error";
|
||||
|
||||
local severity = "warning";
|
||||
if ( err in x509_hot_errors )
|
||||
{
|
||||
NOTICE([$note=SSL_X509Violation, $conn=c, $msg=error]);
|
||||
severity = "error";
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
@load protocols/syslog/consts
|
||||
@load protocols/syslog/base
|
||||
|
|
@ -1,32 +0,0 @@
|
|||
##! Local site policy. Customize as appropriate.
|
||||
|
||||
# DPD should typically be loaded. It enables the subsystem for detecting
|
||||
# protocols on non-standard ports and attaching the appropriate analyzer.
|
||||
@load frameworks/dpd
|
||||
|
||||
# Load some of the commonly used frameworks.
|
||||
@load frameworks/notice
|
||||
@load frameworks/signatures
|
||||
@load frameworks/metrics
|
||||
@load frameworks/intel
|
||||
@load frameworks/software
|
||||
@load frameworks/reporter
|
||||
|
||||
# Load a few extra scripts that aren't loaded by default.
|
||||
@load frameworks/packet-filter/netstats
|
||||
@load misc/loaded-scripts
|
||||
|
||||
# Load most of the protocol analysis scripts.
|
||||
@load protocols/conn
|
||||
@load protocols/dns
|
||||
@load protocols/ftp
|
||||
@load protocols/http
|
||||
@load protocols/irc
|
||||
@load protocols/mime
|
||||
@load protocols/smtp
|
||||
@load protocols/ssh
|
||||
@load protocols/ssl
|
||||
@load protocols/syslog
|
||||
|
||||
# Apply the default tuning scripts for common tuning settings.
|
||||
@load tuning/defaults
|
||||
|
|
@ -1,113 +0,0 @@
|
|||
# This file loads ALL policy scripts that are part of the Bro distribution.
|
||||
#
|
||||
# This is rarely makes sense, and is for testing only.
|
||||
#
|
||||
# Note that we have unit test that makes sure that all policy files shipped are
|
||||
# actually loaded here. If we have files that are part of the distribution yet
|
||||
# can't be loaded here, these must still be listed here with their load command
|
||||
# commented out.
|
||||
|
||||
@load all.bro
|
||||
# @load test-all.bro
|
||||
@load tuning/__load__.bro
|
||||
@load tuning/defaults/__load__.bro
|
||||
@load tuning/defaults/packet-fragments.bro
|
||||
@load tuning/defaults/remove-high-volume-notices.bro
|
||||
@load tuning/track-all-assets.bro
|
||||
@load utils/addrs.bro
|
||||
@load utils/conn-ids.bro
|
||||
@load utils/directions-and-hosts.bro
|
||||
@load utils/files.bro
|
||||
@load utils/numbers.bro
|
||||
@load utils/paths.bro
|
||||
@load utils/pattern.bro
|
||||
@load utils/strings.bro
|
||||
@load utils/thresholds.bro
|
||||
# @load frameworks/communication/__load__.bro
|
||||
# @load frameworks/communication/base.bro
|
||||
# @load frameworks/communication/listen-clear.bro
|
||||
# @load frameworks/communication/listen-ssl.bro
|
||||
@load frameworks/dpd/__load__.bro
|
||||
@load frameworks/dpd/base/main.bro
|
||||
@load frameworks/dpd/packet-segment-logging.bro
|
||||
@load frameworks/intel/__load__.bro
|
||||
@load frameworks/intel/base.bro
|
||||
@load frameworks/logging/__load__.bro
|
||||
@load frameworks/logging/base.bro
|
||||
@load frameworks/logging/plugins/ascii.bro
|
||||
@load frameworks/metrics/__load__.bro
|
||||
@load frameworks/metrics/base/main.bro
|
||||
@load frameworks/notice/__load__.bro
|
||||
# @load frameworks/notice/action-filters.bro
|
||||
# @load frameworks/notice/base.bro
|
||||
# @load frameworks/notice/weird.bro
|
||||
@load frameworks/packet-filter/__load__.bro
|
||||
@load frameworks/packet-filter/netstats.bro
|
||||
@load frameworks/signatures/__load__.bro
|
||||
@load frameworks/signatures/base.bro
|
||||
@load frameworks/software/__load__.bro
|
||||
@load frameworks/software/base/main.bro
|
||||
@load frameworks/software/vulnerable.bro
|
||||
# @load hot.conn.bro
|
||||
@load integration/barnyard2/__load__.bro
|
||||
@load integration/barnyard2/base.bro
|
||||
@load integration/barnyard2/event.bro
|
||||
@load integration/barnyard2/types.bro
|
||||
@load protocols/conn/__load__.bro
|
||||
@load protocols/conn/base/main.bro
|
||||
@load protocols/conn/base/contents.bro
|
||||
@load protocols/conn/base/inactivity.bro
|
||||
@load protocols/conn/known-hosts.bro
|
||||
@load protocols/conn/known-services.bro
|
||||
@load protocols/dns/__load__.bro
|
||||
@load protocols/dns/auth-addl.bro
|
||||
@load protocols/dns/base/main.bro
|
||||
@load protocols/dns/base/consts.bro
|
||||
@load protocols/dns/base/detect.bro
|
||||
@load protocols/ftp/__load__.bro
|
||||
@load protocols/ftp/base.bro
|
||||
@load protocols/ftp/detect.bro
|
||||
@load protocols/ftp/file-extract.bro
|
||||
@load protocols/ftp/software.bro
|
||||
@load protocols/ftp/utils-commands.bro
|
||||
@load protocols/http/__load__.bro
|
||||
@load protocols/http/base/main.bro
|
||||
@load protocols/http/base/detect-intel.bro
|
||||
@load protocols/http/base/detect-sqli.bro
|
||||
@load protocols/http/base/file-extract.bro
|
||||
@load protocols/http/base/file-hash.bro
|
||||
@load protocols/http/base/file-ident.bro
|
||||
@load protocols/http/base/software.bro
|
||||
@load protocols/http/base/utils.bro
|
||||
@load protocols/http/detect-MHR.bro
|
||||
@load protocols/http/detect-webapps.bro
|
||||
@load protocols/http/headers.bro
|
||||
#@load protocols/http/partial-content.bro
|
||||
@load protocols/http/var-extraction-cookies.bro
|
||||
@load protocols/http/var-extraction-uri.bro
|
||||
@load protocols/irc/__load__.bro
|
||||
@load protocols/irc/base.bro
|
||||
@load protocols/irc/dcc-send.bro
|
||||
@load protocols/mime/__load__.bro
|
||||
@load protocols/mime/base.bro
|
||||
@load protocols/mime/file-extract.bro
|
||||
@load protocols/mime/file-hash.bro
|
||||
@load protocols/mime/file-ident.bro
|
||||
@load protocols/smtp/__load__.bro
|
||||
@load protocols/smtp/base/main.bro
|
||||
@load protocols/smtp/base/software.bro
|
||||
@load protocols/smtp/detect-suspicious-orig.bro
|
||||
@load protocols/ssh/__load__.bro
|
||||
@load protocols/ssh/base.bro
|
||||
@load protocols/ssh/software.bro
|
||||
@load protocols/ssl/__load__.bro
|
||||
@load protocols/ssl/base.bro
|
||||
@load protocols/ssl/consts.bro
|
||||
@load protocols/ssl/known-certs.bro
|
||||
@load protocols/ssl/mozilla-ca-list.bro
|
||||
# @load protocols/ssl/ssl-old.bro
|
||||
@load protocols/syslog/__load__.bro
|
||||
@load protocols/syslog/base.bro
|
||||
@load protocols/syslog/consts.bro
|
||||
@load protocols/rpc/base.bro
|
||||
@load site/local
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
@load ./remove-high-volume-notices
|
||||
@load ./packet-fragments
|
||||
|
|
@ -1,7 +1,6 @@
|
|||
include(InstallPackageConfigFile)
|
||||
|
||||
install(DIRECTORY ./ DESTINATION ${POLICYDIR} FILES_MATCHING
|
||||
PATTERN "summaries" EXCLUDE
|
||||
PATTERN "all.bro" EXCLUDE
|
||||
PATTERN "site/local.bro" EXCLUDE
|
||||
PATTERN "bro.init"
|
||||
|
|
@ -1,15 +1,15 @@
|
|||
##! This script only aims at loading all of the base analysis scripts.
|
||||
|
||||
@load protocols/conn
|
||||
@load protocols/dns
|
||||
@load protocols/ftp
|
||||
@load protocols/http
|
||||
@load protocols/irc
|
||||
@load protocols/mime
|
||||
@load protocols/smtp
|
||||
@load protocols/ssh
|
||||
#@load protocols/conn
|
||||
#@load protocols/dns
|
||||
#@load protocols/ftp
|
||||
#@load protocols/http
|
||||
#@load protocols/irc
|
||||
#@load protocols/mime
|
||||
#@load protocols/smtp
|
||||
#@load protocols/ssh
|
||||
@load protocols/ssl
|
||||
@load protocols/syslog
|
||||
#@load protocols/syslog
|
||||
|
||||
@load frameworks/metrics
|
||||
@load frameworks/notice
|
||||
44
scripts/base/all.bro
Normal file
44
scripts/base/all.bro
Normal file
|
|
@ -0,0 +1,44 @@
|
|||
##! This script loads everything in the base/ script directory. If you want
|
||||
##! to run Bro without all of these scripts loaded by default, you can define
|
||||
##! the BRO_NO_BASE_SCRIPTS environment variable to any value. You can also
|
||||
##! copy the "@load" lines from this script to your own script to load only
|
||||
##! the scripts that you actually want.
|
||||
|
||||
@if ( getenv("BRO_NO_BASE_SCRIPTS") == "" )
|
||||
|
||||
@load base/utils/site
|
||||
@load base/utils/addrs
|
||||
@load base/utils/conn-ids
|
||||
@load base/utils/directions-and-hosts
|
||||
@load base/utils/files
|
||||
@load base/utils/numbers
|
||||
@load base/utils/paths
|
||||
@load base/utils/patterns
|
||||
@load base/utils/strings
|
||||
@load base/utils/thresholds
|
||||
|
||||
# This has some weird interplay between types and BiFs so it's loaded in bro.init
|
||||
#@load base/frameworks/logging
|
||||
@load base/frameworks/notice
|
||||
@load base/frameworks/dpd
|
||||
@load base/frameworks/signatures
|
||||
@load base/frameworks/packet-filter
|
||||
@load base/frameworks/software
|
||||
@load base/frameworks/intel
|
||||
@load base/frameworks/metrics
|
||||
@load base/frameworks/communication
|
||||
@load base/frameworks/control
|
||||
@load base/frameworks/cluster
|
||||
@load base/frameworks/reporter
|
||||
|
||||
@load base/protocols/conn
|
||||
@load base/protocols/dns
|
||||
@load base/protocols/ftp
|
||||
@load base/protocols/http
|
||||
@load base/protocols/irc
|
||||
@load base/protocols/smtp
|
||||
@load base/protocols/ssh
|
||||
@load base/protocols/ssl
|
||||
@load base/protocols/syslog
|
||||
|
||||
@endif
|
||||
|
|
@ -343,7 +343,7 @@ function add_signature_file(sold: string, snew: string): string
|
|||
}
|
||||
global signature_files = "" &add_func = add_signature_file;
|
||||
|
||||
const passive_fingerprint_file = "signatures/p0f.fp" &redef;
|
||||
const passive_fingerprint_file = "base/misc/p0f.fp" &redef;
|
||||
|
||||
# TODO: testing to see if I can remove these without causing problems.
|
||||
#const ftp = 21/tcp;
|
||||
|
|
@ -1483,11 +1483,6 @@ const skip_http_data = F &redef;
|
|||
# UDP tunnels. See also: udp_tunnel_port, policy/udp-tunnel.bro.
|
||||
const parse_udp_tunnels = F &redef;
|
||||
|
||||
# Load the site utilities.
|
||||
@load utils/site
|
||||
|
||||
# Load the logging framework.
|
||||
@load frameworks/logging
|
||||
|
||||
# Load the packet filtering framework.
|
||||
@load frameworks/packet-filter
|
||||
# Load the logging framework here because it uses fairly deep integration with
|
||||
# BiFs and script-land defined types.
|
||||
@load base/frameworks/logging
|
||||
|
|
@ -1,5 +1,5 @@
|
|||
# Load the core cluster support.
|
||||
@load frameworks/cluster/base/main
|
||||
@load ./main
|
||||
|
||||
@if ( Cluster::node != "" )
|
||||
|
||||
|
|
@ -9,10 +9,6 @@ redef peer_description = Cluster::node;
|
|||
# Add a cluster prefix.
|
||||
@prefixes += cluster
|
||||
|
||||
# Only load the communication framework if it really looks like someone is
|
||||
# trying to start up a cluster node.
|
||||
@load frameworks/communication
|
||||
|
||||
# Make this a controllable node since all cluster nodes are inherently
|
||||
# controllable.
|
||||
@load frameworks/control/controllee
|
||||
|
|
@ -25,7 +21,7 @@ redef peer_description = Cluster::node;
|
|||
|
||||
@if ( Cluster::node in Cluster::nodes )
|
||||
|
||||
@load frameworks/cluster/base/setup-connections
|
||||
@load ./setup-connections
|
||||
|
||||
# Don't start the listening process until we're a bit more sure that the
|
||||
# cluster framework is actually being enabled.
|
||||
|
|
@ -35,15 +31,15 @@ redef peer_description = Cluster::node;
|
|||
redef Communication::listen_port_clear = Cluster::nodes[Cluster::node]$p;
|
||||
|
||||
@if ( Cluster::nodes[Cluster::node]$node_type == Cluster::MANAGER )
|
||||
@load frameworks/cluster/base/node/manager
|
||||
@load ./nodes/manager
|
||||
@endif
|
||||
|
||||
@if ( Cluster::nodes[Cluster::node]$node_type == Cluster::PROXY )
|
||||
@load frameworks/cluster/base/node/proxy
|
||||
@load ./nodes/proxy
|
||||
@endif
|
||||
|
||||
@if ( Cluster::nodes[Cluster::node]$node_type == Cluster::WORKER )
|
||||
@load frameworks/cluster/base/node/worker
|
||||
@load ./nodes/worker
|
||||
@endif
|
||||
|
||||
@endif
|
||||
|
|
@ -1,7 +1,3 @@
|
|||
@load utils/numbers
|
||||
|
||||
@load frameworks/notice
|
||||
@load frameworks/control
|
||||
|
||||
module Cluster;
|
||||
|
||||
|
|
@ -60,6 +56,7 @@ export {
|
|||
|
||||
event bro_init()
|
||||
{
|
||||
# If a node is given, but it's an unknown name we need to fail.
|
||||
if ( node != "" && node !in nodes )
|
||||
{
|
||||
local msg = "You didn't supply a valid node in the Cluster::nodes configuration.";
|
||||
|
|
@ -2,7 +2,8 @@
|
|||
##!
|
||||
##! The manager is passive (the workers connect to us), and once connected
|
||||
##! the manager registers for the events on the workers that are needed
|
||||
##! to get the desired data from the workers.
|
||||
##! to get the desired data from the workers. This script will be
|
||||
##! automatically loaded if necessary based on the type of node being started.
|
||||
|
||||
##! This is where the cluster manager sets it's specific settings for other
|
||||
##! frameworks and in the core.
|
||||
|
|
@ -1,6 +1,3 @@
|
|||
@load ./main
|
||||
@load frameworks/communication
|
||||
|
||||
module Cluster;
|
||||
|
||||
event bro_init() &priority=9
|
||||
5
scripts/base/frameworks/communication/__load__.bro
Normal file
5
scripts/base/frameworks/communication/__load__.bro
Normal file
|
|
@ -0,0 +1,5 @@
|
|||
|
||||
# TODO: get rid of this as soon as the Expr.cc hack is changed.
|
||||
@if ( getenv("ENABLE_COMMUNICATION") != "" )
|
||||
@load ./main
|
||||
@endif
|
||||
|
|
@ -1,8 +1,6 @@
|
|||
##! Connect to remote Bro or Broccoli instances to share state and/or transfer
|
||||
##! events.
|
||||
|
||||
@load frameworks/packet-filter
|
||||
|
||||
module Communication;
|
||||
|
||||
export {
|
||||
1
scripts/base/frameworks/control/__load__.bro
Normal file
1
scripts/base/frameworks/control/__load__.bro
Normal file
|
|
@ -0,0 +1 @@
|
|||
@load ./main
|
||||
|
|
@ -6,7 +6,7 @@
|
|||
##! bro <scripts> frameworks/control/controller Control::host=<host_addr> Control::port=<host_port> Control::cmd=<command> [Control::arg=<arg>]
|
||||
##!
|
||||
##! A controllee only needs to load the controllee script in addition
|
||||
##! to the specific analysis scripts desired. It may also need a noded
|
||||
##! to the specific analysis scripts desired. It may also need a node
|
||||
##! configured as a controller node in the communications nodes configuration.
|
||||
##! bro <scripts> frameworks/control/controllee
|
||||
##!
|
||||
1
scripts/base/frameworks/dpd/__load__.bro
Normal file
1
scripts/base/frameworks/dpd/__load__.bro
Normal file
|
|
@ -0,0 +1 @@
|
|||
@load ./main
|
||||
|
|
@ -1,12 +1,10 @@
|
|||
##! Activates port-independent protocol detection and selectively disables
|
||||
##! analyzers if protocol violations occur.
|
||||
|
||||
@load frameworks/signatures
|
||||
|
||||
module DPD;
|
||||
|
||||
## Add the DPD signatures to the signature framework.
|
||||
redef signature_files += "frameworks/dpd/base/dpd.sig";
|
||||
redef signature_files += "base/frameworks/dpd/dpd.sig";
|
||||
|
||||
export {
|
||||
redef enum Log::ID += { DPD };
|
||||
1
scripts/base/frameworks/intel/__load__.bro
Normal file
1
scripts/base/frameworks/intel/__load__.bro
Normal file
|
|
@ -0,0 +1 @@
|
|||
@load ./main
|
||||
|
|
@ -20,8 +20,6 @@
|
|||
# canary
|
||||
# friend
|
||||
|
||||
@load frameworks/notice
|
||||
|
||||
module Intel;
|
||||
|
||||
export {
|
||||
3
scripts/base/frameworks/logging/__load__.bro
Normal file
3
scripts/base/frameworks/logging/__load__.bro
Normal file
|
|
@ -0,0 +1,3 @@
|
|||
@load ./main
|
||||
|
||||
@load ./writers/ascii
|
||||
|
|
@ -46,7 +46,7 @@ export {
|
|||
|
||||
## Output path for recording entries matching this
|
||||
## filter.
|
||||
##
|
||||
##
|
||||
## The specific interpretation of the string is up to
|
||||
## the used writer, and may for example be the destination
|
||||
## file name. Generally, filenames are expected to given
|
||||
|
|
@ -140,8 +140,6 @@ global filters: table[ID, string] of Filter;
|
|||
|
||||
@load logging.bif.bro # Needs Filter and Stream defined.
|
||||
|
||||
module Log;
|
||||
|
||||
function default_rotation_path_func(info: RotationInfo) : string
|
||||
{
|
||||
local date_fmt = rotation_control[info$writer, info$path]$date_fmt;
|
||||
1
scripts/base/frameworks/metrics/__load__.bro
Normal file
1
scripts/base/frameworks/metrics/__load__.bro
Normal file
|
|
@ -0,0 +1 @@
|
|||
@load ./main
|
||||
|
|
@ -1,5 +1,4 @@
|
|||
@load frameworks/metrics
|
||||
@load protocols/http
|
||||
|
||||
redef enum Metrics::ID += {
|
||||
HTTP_REQUESTS_BY_STATUS_CODE,
|
||||
|
|
@ -1,9 +1,12 @@
|
|||
@load ./main
|
||||
@load ./weird
|
||||
|
||||
# There should be no overhead imposed by loading notice actions so we
|
||||
# There should be no overhead imposed by loading notice actions so we
|
||||
# load them all.
|
||||
@load ./actions/drop
|
||||
@load ./actions/email_admin
|
||||
@load ./actions/page
|
||||
|
||||
# Load the script to add hostnames to emails by default.
|
||||
# NOTE: this exposes a memleak in async DNS lookups.
|
||||
#@load ./extend-email/hostnames
|
||||
|
|
@ -77,9 +77,7 @@ export {
|
|||
## Textual description for the peer that raised this notice.
|
||||
peer_descr: string &log &optional;
|
||||
|
||||
## The actions that are to be applied to this notice. The set[count]
|
||||
## is to indicate which :bro:id:`Notice::policy` items
|
||||
## triggered the action being added to the notice.
|
||||
## The actions which have been applied to this notice.
|
||||
actions: set[Notice::Action] &log &optional;
|
||||
|
||||
## These are policy items that returned T and applied their action
|
||||
|
|
@ -1,5 +1,3 @@
|
|||
@load frameworks/notice
|
||||
@load utils/conn-ids
|
||||
|
||||
module Weird;
|
||||
|
||||
2
scripts/base/frameworks/packet-filter/__load__.bro
Normal file
2
scripts/base/frameworks/packet-filter/__load__.bro
Normal file
|
|
@ -0,0 +1,2 @@
|
|||
@load ./main
|
||||
@load ./netstats
|
||||
|
|
@ -4,8 +4,6 @@
|
|||
##! open filter and all filters defined in Bro scripts with the
|
||||
##! :bro:id:`capture_filters` and :bro:id:`restrict_filters` variables.
|
||||
|
||||
@load frameworks/notice
|
||||
|
||||
module PacketFilter;
|
||||
|
||||
export {
|
||||
|
|
@ -1,7 +1,5 @@
|
|||
##! This script reports on packet loss from the various packet sources.
|
||||
|
||||
@load frameworks/notice
|
||||
|
||||
module PacketFilter;
|
||||
|
||||
export {
|
||||
1
scripts/base/frameworks/reporter/__load__.bro
Normal file
1
scripts/base/frameworks/reporter/__load__.bro
Normal file
|
|
@ -0,0 +1 @@
|
|||
@load ./main
|
||||
1
scripts/base/frameworks/signatures/__load__.bro
Normal file
1
scripts/base/frameworks/signatures/__load__.bro
Normal file
|
|
@ -0,0 +1 @@
|
|||
@load ./main
|
||||
|
|
@ -1,6 +1,4 @@
|
|||
##! Script level signature support script.
|
||||
|
||||
@load frameworks/notice
|
||||
##! Script level signature support.
|
||||
|
||||
module Signatures;
|
||||
|
||||
|
|
@ -266,7 +264,8 @@ event signature_match(state: signature_state, msg: string, data: string)
|
|||
orig, vcount, resp);
|
||||
|
||||
Log::write(SIGNATURES,
|
||||
[$note=Multiple_Signatures,
|
||||
[$ts=network_time(),
|
||||
$note=Multiple_Signatures,
|
||||
$src_addr=orig,
|
||||
$dst_addr=resp, $sig_id=sig_id, $sig_count=vcount,
|
||||
$event_msg=fmt("%s different signatures triggered", vcount),
|
||||
1
scripts/base/frameworks/software/__load__.bro
Normal file
1
scripts/base/frameworks/software/__load__.bro
Normal file
|
|
@ -0,0 +1 @@
|
|||
@load ./main
|
||||
|
|
@ -4,20 +4,9 @@
|
|||
##! that they analyze. The entry point for providing new software detections
|
||||
##! to this framework is through the :bro:id:`Software::found` function.
|
||||
|
||||
@load frameworks/notice
|
||||
@load utils/directions-and-hosts
|
||||
@load utils/numbers
|
||||
|
||||
module Software;
|
||||
|
||||
export {
|
||||
redef enum Notice::Type += {
|
||||
## For certain softwares, a version changing may matter. In that case,
|
||||
## this notice will be generated. Software that matters if the version
|
||||
## changes can be configured with the
|
||||
## :bro:id:`Software::interesting_version_changes` variable.
|
||||
Software_Version_Change,
|
||||
};
|
||||
|
||||
redef enum Log::ID += { SOFTWARE };
|
||||
|
||||
|
|
@ -58,7 +47,8 @@ export {
|
|||
## default, only software that is "interesting" due to a change
|
||||
## in version or it being currently unknown is sent to the
|
||||
## logging framework. This can be set to T to force the record
|
||||
## to be sent to the logging framework.
|
||||
## to be sent to the logging framework if some amount of this tracking
|
||||
## needs to happen in a specific way to the software.
|
||||
force_log: bool &default=F;
|
||||
};
|
||||
|
||||
|
|
@ -66,17 +56,6 @@ export {
|
|||
## Choices are: LOCAL_HOSTS, REMOTE_HOSTS, ALL_HOSTS, NO_HOSTS
|
||||
const asset_tracking = LOCAL_HOSTS &redef;
|
||||
|
||||
## Some software is more interesting when the version changes and this
|
||||
## a set of all software that should raise a notice when a different
|
||||
## version is seen on a host.
|
||||
const interesting_version_changes: set[string] = {
|
||||
"SSH"
|
||||
} &redef;
|
||||
|
||||
## Some software is more interesting when the version changes and this
|
||||
## a set of all software that should raise a notice when a different
|
||||
## version is seen on a host.
|
||||
const interesting_type_changes: set[string] = set();
|
||||
|
||||
## Other scripts should call this function when they detect software.
|
||||
## unparsed_version: This is the full string from which the
|
||||
|
|
@ -384,7 +363,8 @@ event software_register(id: conn_id, info: Info)
|
|||
tracked[info$host] = table();
|
||||
|
||||
local ts = tracked[info$host];
|
||||
# Software already registered for this host?
|
||||
# Software already registered for this host? We don't want to endlessly
|
||||
# log the same thing.
|
||||
if ( info$name in ts )
|
||||
{
|
||||
local old = ts[info$name];
|
||||
|
|
@ -394,17 +374,6 @@ event software_register(id: conn_id, info: Info)
|
|||
# But if the $force_log value is set then we'll continue.
|
||||
if ( ! info$force_log && cmp_versions(old$version, info$version) == 0 )
|
||||
return;
|
||||
|
||||
# Is it a potentially interesting version change?
|
||||
if ( info$name in interesting_version_changes )
|
||||
{
|
||||
local msg = fmt("%.6f %s switched from %s to %s (%s)",
|
||||
network_time(), software_endpoint_name(id, info$host),
|
||||
software_fmt_version(old$version),
|
||||
software_fmt(info), info$software_type);
|
||||
NOTICE([$note=Software_Version_Change, $id=id,
|
||||
$msg=msg, $sub=software_fmt(info)]);
|
||||
}
|
||||
}
|
||||
|
||||
Log::write(SOFTWARE, info);
|
||||
3
scripts/base/protocols/conn/__load__.bro
Normal file
3
scripts/base/protocols/conn/__load__.bro
Normal file
|
|
@ -0,0 +1,3 @@
|
|||
@load ./main
|
||||
@load ./contents
|
||||
@load ./inactivity
|
||||
|
|
@ -8,8 +8,6 @@
|
|||
##! This script does not work well in a cluster context unless it has a
|
||||
##! remotely mounted disk to write the content files to.
|
||||
|
||||
@load utils/files
|
||||
|
||||
module Conn;
|
||||
|
||||
export {
|
||||
|
|
@ -77,7 +77,7 @@ redef record connection += {
|
|||
conn: Info &optional;
|
||||
};
|
||||
|
||||
event bro_init()
|
||||
event bro_init() &priority=5
|
||||
{
|
||||
Log::create_stream(CONN, [$columns=Info, $ev=log_conn]);
|
||||
}
|
||||
2
scripts/base/protocols/dns/__load__.bro
Normal file
2
scripts/base/protocols/dns/__load__.bro
Normal file
|
|
@ -0,0 +1,2 @@
|
|||
@load ./consts
|
||||
@load ./main
|
||||
|
|
@ -1,6 +1,4 @@
|
|||
|
||||
@load ./consts
|
||||
|
||||
module DNS;
|
||||
|
||||
export {
|
||||
3
scripts/base/protocols/ftp/__load__.bro
Normal file
3
scripts/base/protocols/ftp/__load__.bro
Normal file
|
|
@ -0,0 +1,3 @@
|
|||
@load ./utils-commands
|
||||
@load ./main
|
||||
@load ./file-extract
|
||||
|
|
@ -1,9 +1,5 @@
|
|||
##! File extraction for FTP.
|
||||
|
||||
@load protocols/ftp
|
||||
@load utils/conn-ids
|
||||
@load utils/files
|
||||
|
||||
module FTP;
|
||||
|
||||
export {
|
||||
|
|
@ -7,10 +7,6 @@
|
|||
##!
|
||||
##! * Handle encrypted sessions correctly (get an example?)
|
||||
|
||||
@load utils/paths
|
||||
@load utils/numbers
|
||||
@load ./utils-commands
|
||||
|
||||
module FTP;
|
||||
|
||||
export {
|
||||
|
|
@ -93,7 +89,7 @@ redef dpd_config += { [ANALYZER_FTP] = [$ports = ports] };
|
|||
# Establish the variable for tracking expected connections.
|
||||
global ftp_data_expected: table[addr, port] of ExpectedConn &create_expire=5mins;
|
||||
|
||||
event bro_init()
|
||||
event bro_init() &priority=5
|
||||
{
|
||||
Log::create_stream(FTP, [$columns=Info, $ev=log_ftp]);
|
||||
}
|
||||
5
scripts/base/protocols/http/__load__.bro
Normal file
5
scripts/base/protocols/http/__load__.bro
Normal file
|
|
@ -0,0 +1,5 @@
|
|||
@load ./main
|
||||
@load ./utils
|
||||
@load ./file-ident
|
||||
@load ./file-hash
|
||||
@load ./file-extract
|
||||
|
|
@ -1,9 +1,6 @@
|
|||
##! Extracts the items from HTTP traffic, one per file. At this time only
|
||||
##! the message body from the server can be extracted with this script.
|
||||
|
||||
@load protocols/http
|
||||
@load utils/files
|
||||
|
||||
module HTTP;
|
||||
|
||||
export {
|
||||
|
|
@ -1,9 +1,5 @@
|
|||
##! Calculate hashes for HTTP body transfers.
|
||||
|
||||
@load ./main
|
||||
@load ./utils
|
||||
@load ./file-ident
|
||||
|
||||
module HTTP;
|
||||
|
||||
export {
|
||||
|
|
@ -1,12 +1,8 @@
|
|||
##! This script is involved in the identification of file types in HTTP
|
||||
##! response bodies.
|
||||
|
||||
@load ./main
|
||||
@load ./utils
|
||||
@load frameworks/notice
|
||||
@load frameworks/signatures
|
||||
|
||||
redef signature_files += "protocols/http/base/file-ident.sig";
|
||||
# Add the magic number signatures to the core signature set.
|
||||
redef signature_files += "base/protocols/http/file-ident.sig";
|
||||
# Ignore the signatures used to match files
|
||||
redef Signatures::ignored_ids += /^matchfile-/;
|
||||
|
||||
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