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Commit 8166912c authored by Jakub Cegan's avatar Jakub Cegan
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(task #613) Warden Watchdog - 1. funkcni verze 

Prvni funkcni verze kontroly klientu a udalosti v databazi. Staci nastavit v cronu a provadi predchystane kontroly a reportuje na zadane emaily.
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src/warden-server/bin/wardenWatchdog.pl
+ 110
− 46
View file @ 8166912c
......@@ -7,20 +7,18 @@
# Use of this source is governed by a BSD-style license, see LICENSE file.
use WardenConf;
#use WardenConf;
use strict;
use warnings;
use DBI;
use DBD::mysql;
use DateTime;
#use Email::Simple;
use Email::Simple;
use Sys::Hostname;
use Text::Wrap;
use Data::Dumper;
sub sendmailWrapper{
sub sendmail_wrapper{
my $message = shift;
if(open(my $sendmail, '|/usr/sbin/sendmail -oi -t')){
print $sendmail $message;
close $sendmail;
......@@ -33,8 +31,7 @@ sub sendmailWrapper{
# Array of hashes
#{query => ; text => ; contact => }
# Get clients admins
sub sendReport{
sub send_report{
my $input_data = shift;
my $contact = $$input_data{'contact'};
......@@ -49,31 +46,28 @@ sub sendReport{
}
$domain =~ s/\./\./;
eval{
$from_hostname = hostname();
if(!($from_hostname =~ m/$domain/gi)){
$from_hostname .= $domain;
if(!($from_hostname =~ m/^$domain$/gi)){
$from_hostname = $domain;
}
};
if($@){
1;
} or do {
return (0, "Can't retrive hostname for 'From' header!\n");
}
};
eval{
#$message = Email::Simple->create(
#header => [
#To => $contact,
#From => 'warden_watchdog@'.$from_hostname,
#Subject => 'Kotrola stavu udalosti na Wardenu'],
#body => fill('','',$text));
};
if($@){
$message = Email::Simple->create(
header => [
To => $contact,
From => 'warden_watchdog@'.$from_hostname,
Subject => "Kotrola stavu udalosti warden serveru na stroji $domain"],
body => $text);
} or do {
return (0, "Can't create email message\n");
}
};
print "== $contact ==\n$text\n";
my ($rc, $err) = 1;#sendmailWrapper($message->as_string);
my ($rc, $err) = sendmail_wrapper($message->as_string);
if(!$rc){
return (0, $err);
}
......@@ -100,7 +94,32 @@ sub connect_to_DB {
}
}
sub sendQuery{
sub update_procedures{
my $procRef = shift;
my @procedures = @{$procRef};
my $dbh;
# connect to DB
my ($rc,$err) = connect_to_DB(\$dbh);
if (!$rc){
return (0,'update_procedures can\'t connect do DB: '.$err);
}
foreach my $proc (@procedures) {
$dbh->do($proc);
}
# disconnect to DB
$dbh->disconnect;
return 1;
}
sub send_query{
my $configRef = shift;
my $eventsRef = shift;
......@@ -114,12 +133,10 @@ sub sendQuery{
# connect to DB
($rc,$err) = connect_to_DB(\$dbh);
if (!$rc){
return (0, $err);
return (0,'send_query can\'t connect do DB: '.$err);
}
while ($i < scalar(@config)) {
my $contact;
# run DB query -> requestor, client name
my $sth;
if (defined($config[$i]{query})){
......@@ -134,15 +151,27 @@ sub sendQuery{
};
my @result;
my $contact;
my $msg_text = 1;
while(@result = $sth->fetchrow()){
if (defined($config[$i]{contact})){
$contact = $config[$i]{contact};
if($msg_text){
$bad_events{$contact} .= $config[$i]{text} . "\n\n";
$msg_text = 0;
}
$bad_events{$contact} .= join(", ",@result) . "\n";
}
else{
$contact = "from_db\@$result[0]";
$bad_events{$contact} .= $config[$i]{text} . "\n\n";
$bad_events{$contact} .= join(", ",@result) . "\n";
}
$bad_events{$contact} .= $config[$i]{text} . "DB INFO: ". join(', ',@result) ."\n";
}
foreach my $key (keys %bad_events){
$bad_events{$key} .= "\n\n";
}
$sth->finish;
$i++;
}
......@@ -166,40 +195,75 @@ sub run{
my $dt = DateTime->now();
$dt = DateTime->now()->subtract(days => $period);
$date = $dt->date();
} or do {
#print "Warden watchdog - can't work with date\n";
syslog("err|Warden watchdog - can't work with date\n");
};
if($@){
print "Warden watchdog - can't work with date\n";
#syslog("err|Warden watchdog - can't work with date\n");
}
# stored procedures
# iptest - is ip from private network
my @procedures = ('DROP FUNCTION IF EXISTS iptest;', 'CREATE FUNCTION iptest(ip VARCHAR(15)) RETURNS TINYINT(1) DETERMINISTIC
BEGIN
SET @nip = INET_ATON(ip);
IF(
ISNULL( @nip) OR
@nip BETWEEN 0 AND 16777216 OR
@nip BETWEEN 167772160 AND 171966464 OR
@nip BETWEEN 2130706432 AND 2130706433 OR
@nip BETWEEN 2851995648 AND 2851995649 OR
@nip BETWEEN 2886729728 AND 2886729729 OR
@nip BETWEEN 3221225472 AND 3221225473 OR
@nip BETWEEN 3221225984 AND 3221225985 OR
@nip BETWEEN 3227017984 AND 3227017985 OR
@nip BETWEEN 3232235520 AND 3232235521 OR
@nip BETWEEN 3323068416 AND 3323068417 OR
@nip BETWEEN 3325256704 AND 3325256705 OR
@nip BETWEEN 3405803776 AND 3405803777 OR
@nip BETWEEN 3758096384 AND 3758096385 OR
@nip BETWEEN 4026531840 AND 4026531841 OR
@nip > 4294967295) THEN
RETURN TRUE;
ELSE
RETURN FALSE;
END IF;
END;');
# {query => ; text => ; contact => }
# Time of last event of each client.
# Is it unsupported type of event?
# Is event from the future?
# Martane - Is IP from the private network?
my @configuration = (
{query => "SELECT hostname, service, MAX(received) FROM events WHERE valid = 't' GROUP BY hostname, service ORDER BY MAX(received) ASC;", text => "Hey, this is test of warning for admin!\n"},
{query => "SELECT requestor FROM clients WHERE service IN (SELECT service FROM events WHERE detected > '$date' AND type NOT IN ('portscan', 'bruteforce', 'probe', 'spam', 'phishing', 'botnet_c_c', 'dos', 'malware', 'copyright', 'webattack', 'test', 'other') AND valid = 't' GROUP BY service) GROUP BY requestor;", text => "Hey, this is test of warning!\n", contact => 'warden-administrator@cesnet.cz'});
$Text::Wrap::columns = 80;
{query => "SELECT hostname, service, MAX(received) FROM events WHERE valid = 't' GROUP BY hostname, service ORDER BY MAX(received) ASC;", text => "Uvedeny klient, nebo klienti jiz delsi dobu nereportovali zadne udalosti do Wardenu. Je mozne, ze nefunguji spravne.", contact => 'jakubcegan@cesnet.cz, ph@cesnet.cz'},
{query => "SELECT requestor FROM clients WHERE service IN (SELECT service FROM events WHERE detected > '$date' AND type NOT IN ('portscan', 'bruteforce', 'probe', 'spam', 'phishing', 'botnet_c_c', 'dos', 'malware', 'copyright', 'webattack', 'test', 'other') AND valid = 't' GROUP BY service) GROUP BY requestor;", text => "Uvedeny klient, nebo klienti zasilaji nepodporovany nebo zastaraly typ udalosti na server Warden", contact => 'jakubcegan@cesnet.cz, ph@cesnet.cz'},
{query => "SELECT hostname, service, type, COUNT(*) FROM events WHERE detected - received > 0 AND received > '$date' GROUP BY hostname, service, type;", text => "Uvedeny klient, nebo klienti odesilaji odesilaji udalosti s casem z budoucnosti. Cas prirazeny serverem pri prichodu udalosti (received) musi byt vzdy roven nebo vetsi casu detekce (detected).", contact => 'jakubcegan@cesnet.cz, ph@cesnet.cz'},
{query => "SELECT hostname, service, received, source, count(source) AS c, min(received), max(received) FROM events WHERE valid = 't' AND source_type = 'IP' AND iptest(source) GROUP BY hostname, service, source ORDER BY c DESC;", text => "Uvedeni klient, nebo klienti odesilaji udalosti se zdrojovou adresou, ktera by se nemela objevit v internetu (privatni rozsah), nebo je neplatna (prazdny oktet, oktet je vetsi nez 255, apod.). kvuli omezeni verzi MySQL serveru funguje zatim pouze pro IPv6.", contact => 'jakubcegan@cesnet.cz, ph@cesnet.cz'});
my ($rc,$err) = update_procedures(\@procedures);
if (!$rc){
#print "Warden watchdog - $err\n";
syslog("err|Warden watchdog - $err\n");
}
my %bad_events;
my $i = 0;
while ($i < scalar(@configuration)) {
my ($rc,$err) = sendQuery(\@configuration,\%bad_events);
my ($rc,$err) = send_query(\@configuration,\%bad_events);
if (!$rc){
print "Warden watchdog - $err\n";
#syslog("err|Warden watchdog - $err\n");
#print "Warden watchdog - $err\n";
syslog("err|Warden watchdog - $err\n");
}
$i++;
}
while (my ($contact, $text) = each(%bad_events)){
my %input = (contact => $contact, domain => $domain, text => $text);
my ($rc,$err) = sendReport(\%input);
my ($rc,$err) = send_report(\%input);
if (!$rc){
# TODO syslog
print $err;
#syslog("err|Warden client - networkReporter $err\n");
#print $err;
syslog("err|Warden client - networkReporter $err\n");
}
print "\n\n";
}
}
......
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