]>
git.ipfire.org Git - people/pmueller/ipfire-2.x.git/blob - html/cgi-bin/ids.cgi
2 ###############################################################################
4 # IPFire.org - A linux based firewall #
5 # Copyright (C) 2007-2015 IPFire Team <info@ipfire.org> #
7 # This program is free software: you can redistribute it and/or modify #
8 # it under the terms of the GNU General Public License as published by #
9 # the Free Software Foundation, either version 3 of the License, or #
10 # (at your option) any later version. #
12 # This program is distributed in the hope that it will be useful, #
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of #
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
15 # GNU General Public License for more details. #
17 # You should have received a copy of the GNU General Public License #
18 # along with this program. If not, see <http://www.gnu.org/licenses/>. #
20 ###############################################################################
24 # enable only the following on debugging purpose
26 #use CGI::Carp 'fatalsToBrowser';
29 require '/var/ipfire/general-functions.pl';
30 require "${General::swroot}/lang.pl";
31 require "${General::swroot}/header.pl";
33 sub refreshpage
{&Header
::openbox
( 'Waiting', 1, "<meta http-equiv='refresh' content='1;'>" );print "<center><img src='/images/clock.gif' alt='' /><br/><font color='red'>$Lang::tr{'pagerefresh'}</font></center>";&Header
::closebox
();}
38 my %mainsettings = ();
39 &General
::readhash
("${General::swroot}/main/settings", \
%mainsettings);
40 &General
::readhash
("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \
%color);
46 our $errormessage = '';
50 &General
::readhash
("${General::swroot}/ethernet/settings", \
%netsettings);
52 &Header
::showhttpheaders
();
54 $snortsettings{'ENABLE_SNORT'} = 'off';
55 $snortsettings{'ENABLE_SNORT_GREEN'} = 'off';
56 $snortsettings{'ENABLE_SNORT_BLUE'} = 'off';
57 $snortsettings{'ENABLE_SNORT_ORANGE'} = 'off';
58 $snortsettings{'ACTION'} = '';
59 $snortsettings{'RULES'} = '';
60 $snortsettings{'OINKCODE'} = '';
61 $snortsettings{'INSTALLDATE'} = '';
62 $snortsettings{'FILE'} = '';
63 $snortsettings{'UPLOAD'} = '';
65 &Header
::getcgihash
(\
%snortsettings, {'wantfile' => 1, 'filevar' => 'FH'});
67 ####################### Added for snort rules control #################################
68 my $snortrulepath; # change to "/etc/snort/rules" - maniac
70 my $restartsnortrequired = 0;
73 my $table1colour = '';
74 my $table2colour = '';
78 my $linkedrulefile = '';
80 my $checkboxname = '';
82 if (-e
"/etc/snort/snort.conf") {
85 # Open snort.conf file, read it in, close it, and re-open for writing
86 open(FILE
, "/etc/snort/snort.conf") or die 'Unable to read snort config file.';
87 @snortconfig = <FILE
>;
89 open(FILE
, ">/etc/snort/snort.conf") or die 'Unable to write snort config file.';
91 my @rules = `cd /etc/snort/rules/ && ls *.rules 2>/dev/null`; # With this loop the rule might be display with correct rulepath set
94 my $temp = join(";",@snortconfig);
95 if ( $temp =~ /$_/ ){next;}
96 else { push(@snortconfig,"#include \$RULE_PATH/".$_);}
100 foreach my $line (@snortconfig) {
104 # Check for a line with .rules
105 if ($line =~ /\.rules$/) {
106 # Parse out rule file name
108 $rule =~ s/\$RULE_PATH\///i
;
109 $rule =~ s/ ?include ?//i;
111 my $snortrulepathrule = "$snortrulepath/$rule";
113 # Open rule file and read in contents
114 open(RULEFILE
, "$snortrulepath/$rule") or die "Unable to read snort rule file for reading => $snortrulepath/$rule.";
115 my @snortrulefile = <RULEFILE
>;
117 open(RULEFILE
, ">$snortrulepath/$rule") or die "Unable to write snort rule file for writing $snortrulepath/$rule";
122 my $snortruledesc = '';
123 my %snortruledef = ();
126 # Loop over rule file contents
127 foreach my $ruleline (@snortrulefile) {
130 # If still looking for a description
132 # If line does not start with a # anymore, then done looking for a description
133 if ($ruleline !~ /^\#/) {
137 # If see more than one dashed line, (start to) create rule file description
138 if ($dashlinecnt > 1) {
139 # Check for a line starting with a #
140 if ($ruleline =~ /^\#/ and $ruleline !~ /^\#alert/) {
141 # Create tempruleline
142 my $tempruleline = $ruleline;
144 # Strip off # and clean up line
145 $tempruleline =~ s/\# ?//i;
147 # Check for part of a description
148 if ($snortruledesc eq '') {
149 $snortruledesc = $tempruleline;
151 $snortruledesc .= " $tempruleline";
159 # If have a dashed line, increment count
160 if ($ruleline =~ /\# ?\-+/) {
164 # Parse out rule file rule's message for display
165 if ($ruleline =~ /(msg\:\"[^\"]+\";)/) {
168 $msg =~ s/msg\:\"//i;
170 $snortruledef{$rulecnt}{'Description'} = $msg;
172 # Check for 'Save' and rule file displayed in query string
173 if (($snortsettings{'ACTION'} eq $Lang::tr
{'update'}) && ($ENV{'QUERY_STRING'} =~ /$rule/i)) {
174 # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
175 if ((($ruleline =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"})) || (($ruleline !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}))) {
176 $restartsnortrequired = 1;
179 # Strip out leading # from rule line
180 $ruleline =~ s/\# ?//i;
182 # Check if it does not exists (which means it is disabled), append a #
183 if (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}) {
184 $ruleline = "#"." $ruleline";
188 # Check if ruleline does not begin with a #, so it is enabled
189 if ($ruleline !~ /^\#/) {
190 $snortruledef{$rulecnt++}{'State'} = 'Enabled';
192 # Otherwise it is disabled
193 $snortruledef{$rulecnt++}{'State'} = 'Disabled';
198 # Print ruleline to RULEFILE
199 print RULEFILE
"$ruleline\n";
206 if ($snortsettings{'ACTION'} eq $Lang::tr
{'update'}) {
207 # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
208 if ((($line =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule"})) || (($line !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule"}))) {
209 $restartsnortrequired = 1;
212 # Strip out leading # from rule line
215 # Check if it does not exists (which means it is disabled), append a #
216 if (!exists $snortsettings{"SNORT_RULE_$rule"}) {
222 # Check for rule state
223 if ($line =~ /^\#/) {
224 $snortrules{$rule}{"State"} = "Disabled";
226 $snortrules{$rule}{"State"} = "Enabled";
229 # Set rule description
230 $snortrules{$rule}{"Description"} = $snortruledesc;
232 # Loop over sorted rules
233 foreach my $ruledef (sort {$a <=> $b} keys(%snortruledef)) {
234 $snortrules{$rule}{"Definition"}{$ruledef}{'Description'} = $snortruledef{$ruledef}{'Description'};
235 $snortrules{$rule}{"Definition"}{$ruledef}{'State'} = $snortruledef{$ruledef}{'State'};
239 print FILE
"$line\n";
240 } elsif ($line =~ /var RULE_PATH/) {
241 ($tmp, $tmp, $snortrulepath) = split(' ', $line);
242 print FILE
"$line\n";
244 print FILE
"$line\n";
249 if ($restartsnortrequired) {
250 system('/usr/local/bin/snortctrl restart >/dev/null');
254 ####################### End added for snort rules control #################################
256 if ($snortsettings{'OINKCODE'} ne "") {
257 $errormessage = $Lang::tr
{'invalid input for oink code'} unless ($snortsettings{'OINKCODE'} =~ /^[a-z0-9]+$/);
260 if (!$errormessage) {
261 if ($snortsettings{'RULES'} eq 'subscripted') {
262 $url=" https://www.snort.org/rules/snortrules-snapshot-29120.tar.gz?oinkcode=$snortsettings{'OINKCODE'}";
263 } elsif ($snortsettings{'RULES'} eq 'registered') {
264 $url=" https://www.snort.org/rules/snortrules-snapshot-29120.tar.gz?oinkcode=$snortsettings{'OINKCODE'}";
265 } elsif ($snortsettings{'RULES'} eq 'community') {
266 $url=" https://www.snort.org/rules/community";
268 $url="https://rules.emergingthreats.net/open/snort-2.9.0/emerging.rules.tar.gz";
271 if ($snortsettings{'ACTION'} eq $Lang::tr
{'save'} && $snortsettings{'ACTION2'} eq "snort" ) {
272 &General
::writehash
("${General::swroot}/snort/settings", \
%snortsettings);
273 if ($snortsettings{'ENABLE_SNORT'} eq 'on')
275 system ('/usr/bin/touch', "${General::swroot}/snort/enable");
277 unlink "${General::swroot}/snort/enable";
279 if ($snortsettings{'ENABLE_SNORT_GREEN'} eq 'on')
281 system ('/usr/bin/touch', "${General::swroot}/snort/enable_green");
283 unlink "${General::swroot}/snort/enable_green";
285 if ($snortsettings{'ENABLE_SNORT_BLUE'} eq 'on')
287 system ('/usr/bin/touch', "${General::swroot}/snort/enable_blue");
289 unlink "${General::swroot}/snort/enable_blue";
291 if ($snortsettings{'ENABLE_SNORT_ORANGE'} eq 'on')
293 system ('/usr/bin/touch', "${General::swroot}/snort/enable_orange");
295 unlink "${General::swroot}/snort/enable_orange";
297 if ($snortsettings{'ENABLE_PREPROCESSOR_HTTP_INSPECT'} eq 'on')
299 system ('/usr/bin/touch', "${General::swroot}/snort/enable_preprocessor_http_inspect");
301 unlink "${General::swroot}/snort/enable_preprocessor_http_inspect";
304 system('/usr/local/bin/snortctrl restart >/dev/null');
307 # INSTALLMD5 is not in the form, so not retrieved by getcgihash
308 &General
::readhash
("${General::swroot}/snort/settings", \
%snortsettings);
310 if ($snortsettings{'ACTION'} eq $Lang::tr
{'download new ruleset'} || $snortsettings{'ACTION'} eq $Lang::tr
{'upload new ruleset'}) {
311 my @df = `/bin/df -B M /var`;
312 foreach my $line (@df) {
313 next if $line =~ m/^Filesystem/;
316 if ($line =~ m/dev/ ) {
317 $line =~ m/^.* (\d+)M.*$/;
318 my @temp = split(/ +/,$line);
320 $errormessage = "$Lang::tr{'not enough disk space'} < 300MB, /var $1MB";
322 if ( $snortsettings{'ACTION'} eq $Lang::tr
{'download new ruleset'}) {
323 &downloadrulesfile
();
325 $return = `cat /var/tmp/log 2>/dev/null`;
327 } elsif ( $snortsettings{'ACTION'} eq $Lang::tr
{'upload new ruleset'}) {
328 my $upload = $a->param("UPLOAD");
329 open UPLOADFILE
, ">/var/tmp/snortrules.tar.gz";
331 while ( <$upload> ) {
337 if ($return =~ "ERROR") {
338 $errormessage = "<br /><pre>".$return."</pre>";
340 system("/usr/local/bin/oinkmaster.pl -v -s -u file:///var/tmp/snortrules.tar.gz -C /var/ipfire/snort/oinkmaster.conf -o /etc/snort/rules >>/var/tmp/log 2>&1 &");
349 $checked{'ENABLE_SNORT'}{'off'} = '';
350 $checked{'ENABLE_SNORT'}{'on'} = '';
351 $checked{'ENABLE_SNORT'}{$snortsettings{'ENABLE_SNORT'}} = "checked='checked'";
352 $checked{'ENABLE_SNORT_GREEN'}{'off'} = '';
353 $checked{'ENABLE_SNORT_GREEN'}{'on'} = '';
354 $checked{'ENABLE_SNORT_GREEN'}{$snortsettings{'ENABLE_SNORT_GREEN'}} = "checked='checked'";
355 $checked{'ENABLE_SNORT_BLUE'}{'off'} = '';
356 $checked{'ENABLE_SNORT_BLUE'}{'on'} = '';
357 $checked{'ENABLE_SNORT_BLUE'}{$snortsettings{'ENABLE_SNORT_BLUE'}} = "checked='checked'";
358 $checked{'ENABLE_SNORT_ORANGE'}{'off'} = '';
359 $checked{'ENABLE_SNORT_ORANGE'}{'on'} = '';
360 $checked{'ENABLE_SNORT_ORANGE'}{$snortsettings{'ENABLE_SNORT_ORANGE'}} = "checked='checked'";
361 $selected{'RULES'}{'nothing'} = '';
362 $selected{'RULES'}{'community'} = '';
363 $selected{'RULES'}{'emerging'} = '';
364 $selected{'RULES'}{'registered'} = '';
365 $selected{'RULES'}{'subscripted'} = '';
366 $selected{'RULES'}{$snortsettings{'RULES'}} = "selected='selected'";
368 &Header
::openpage
($Lang::tr
{'intrusion detection system'}, 1, '');
370 ####################### Added for snort rules control #################################
371 print "<script type='text/javascript' src='/include/snortupdateutility.js'></script>";
373 <style type="text/css">
380 background-color: $color{'color22'};
384 background-color: $color{'color20'};
387 border: double #FF0000;
388 background-color: #DCDCDC;
394 ####################### End added for snort rules control #################################
396 &Header
::openbigbox
('100%', 'left', '', $errormessage);
400 # &Header::openbox('100%', 'left', 'DEBUG');
401 # my $debugCount = 0;
402 # foreach my $line (sort keys %snortsettings) {
403 # print "$line = $snortsettings{$line}<br />\n";
406 # print " Count: $debugCount\n";
407 # &Header::closebox();
412 &Header
::openbox
('100%', 'left', $Lang::tr
{'error messages'});
413 print "<class name='base'>$errormessage\n";
414 print " </class>\n";
418 my $return = `pidof oinkmaster.pl -x`;
421 &Header
::openbox
( 'Waiting', 1, "<meta http-equiv='refresh' content='10;'>" );
425 <img src='/images/indicator.gif' alt='$Lang::tr{'aktiv'}' />
427 $Lang::tr{'snort working'}
428 <tr><td colspan='2' align='center'>
429 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
430 <input type='image' alt='$Lang::tr{'reload'}' title='$Lang::tr{'reload'}' src='/images/view-refresh.png' />
432 <tr><td colspan='2' align='left'><pre>
434 my @output = `tail -20 /var/tmp/log`;
443 &Header
::closebigbox
();
444 &Header
::closepage
();
449 &Header
::openbox
('100%', 'left', $Lang::tr
{'intrusion detection system'});
451 <form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'>
452 <tr><td class='base'><input type='checkbox' name='ENABLE_SNORT_GREEN' $checked{'ENABLE_SNORT_GREEN'}{'on'} />GREEN Snort
455 if ($netsettings{'BLUE_DEV'} ne '') {
456 print " <input type='checkbox' name='ENABLE_SNORT_BLUE' $checked{'ENABLE_SNORT_BLUE'}{'on'} /> BLUE Snort";
458 if ($netsettings{'ORANGE_DEV'} ne '') {
459 print " <input type='checkbox' name='ENABLE_SNORT_ORANGE' $checked{'ENABLE_SNORT_ORANGE'}{'on'} /> ORANGE Snort";
461 print " <input type='checkbox' name='ENABLE_SNORT' $checked{'ENABLE_SNORT'}{'on'} /> RED Snort";
469 <td><b>$Lang::tr{'ids rules update'}</b></td>
472 <td><select name='RULES'>
473 <option value='nothing' $selected{'RULES'}{'nothing'} >$Lang::tr{'no'}</option>
474 <option value='emerging' $selected{'RULES'}{'emerging'} >$Lang::tr{'emerging rules'}</option>
475 <option value='community' $selected{'RULES'}{'community'} >$Lang::tr{'community rules'}</option>
476 <option value='registered' $selected{'RULES'}{'registered'} >$Lang::tr{'registered user rules'}</option>
477 <option value='subscripted' $selected{'RULES'}{'subscripted'} >$Lang::tr{'subscripted user rules'}</option>
483 $Lang::tr{'ids rules license'} <a href='https://www.snort.org/subscribe' target='_blank'>www.snort.org</a>$Lang::tr{'ids rules license1'}<br /><br />
484 $Lang::tr{'ids rules license2'} <a href='https://www.snort.org/account/oinkcode' target='_blank'>Get an Oinkcode</a>, $Lang::tr{'ids rules license3'}
488 <td nowrap='nowrap'>Oinkcode: <input type='text' size='40' name='OINKCODE' value='$snortsettings{'OINKCODE'}' /></td>
491 <td width='30%' align='left'><br><input type='submit' name='ACTION' value='$Lang::tr{'download new ruleset'}' />
494 if ( -e
"/var/tmp/snortrules.tar.gz"){
495 my @Info = stat("/var/tmp/snortrules.tar.gz");
496 $snortsettings{'INSTALLDATE'} = localtime($Info[9]);
498 print " $Lang::tr{'updates installed'}: $snortsettings{'INSTALLDATE'}</td>";
506 <td align='right'><input type='hidden' name='ACTION2' value='snort' /><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
513 if ($results ne '') {
519 ####################### Added for snort rules control #################################
520 if ( -e
"${General::swroot}/snort/enable" || -e
"${General::swroot}/snort/enable_green" || -e
"${General::swroot}/snort/enable_blue" || -e
"${General::swroot}/snort/enable_orange" ) {
521 &Header
::openbox
('100%', 'LEFT', $Lang::tr
{'intrusion detection system rules'});
522 # Output display table for rule files
523 print "<table width='100%'><tr><td valign='top'><table>";
525 print "<form method='post'>";
528 my $ruledisplaycnt = 1;
529 my $rulecnt = keys %snortrules;
531 $rulecnt = $rulecnt / 2;
533 # Loop over each rule file
534 foreach my $rulefile (sort keys(%snortrules)) {
535 my $rulechecked = '';
537 # Hide inkompatible Block rules
538 if ($rulefile =~'-BLOCK.rules') {
542 # Check if reached half-way through rule file rules to start new column
543 if ($ruledisplaycnt > $rulecnt) {
544 print "</table></td><td valign='top'><table>";
548 # Check if rule file is enabled
549 if ($snortrules{$rulefile}{"State"} eq 'Enabled') {
550 $rulechecked = 'CHECKED';
553 # Create rule file link, vars array, and display flag
554 my $rulefilelink = "?RULEFILE=$rulefile";
555 my $rulefiletoclose = '';
557 my $displayrulefilerules = 0;
559 # Check for passed in query string
560 if ($ENV{'QUERY_STRING'}) {
562 @queryvars = split(/\&/, $ENV{'QUERY_STRING'});
565 foreach $value (@queryvars) {
566 # Split out var pairs
567 ($var, $linkedrulefile) = split(/=/, $value);
569 # Check if var is 'RULEFILE'
570 if ($var eq 'RULEFILE') {
571 # Check if rulefile equals linkedrulefile
572 if ($rulefile eq $linkedrulefile) {
574 $displayrulefilerules = 1;
576 # Strip out rulefile from rulefilelink
577 $rulefilelink =~ s/RULEFILE=$linkedrulefile//g;
579 # Add linked rule file to rulefilelink
580 $rulefilelink .= "&RULEFILE=$linkedrulefile";
586 # Strip out extra & & ? from rulefilelink
587 $rulefilelink =~ s/^\?\&/\?/i;
589 # Check for a single '?' and replace with page for proper link display
590 if ($rulefilelink eq '?') {
591 $rulefilelink = "ids.cgi";
594 # Output rule file name and checkbox
595 print "<tr><td class='base' valign='top'><input type='checkbox' NAME='SNORT_RULE_$rulefile' $rulechecked> <a href='$rulefilelink'>$rulefile</a></td></tr>";
596 print "<tr><td class='base' valign='top'>";
598 # Check for empty 'Description'
599 if ($snortrules{$rulefile}{'Description'} eq '') {
600 print "<table width='100%'><tr><td class='base'>No description available</td></tr>";
602 # Output rule file 'Description'
603 print "<table width='100%'><tr><td class='base'>$snortrules{$rulefile}{'Description'}</td></tr>";
606 # Check for display flag
607 if ($displayrulefilerules) {
608 # Rule file definition rule display
609 print "<tr><td class='base' valign='top'><table border='0'><tr>";
612 my $ruledefdisplaycnt = 0;
613 my $ruledefcnt = keys %{$snortrules{$rulefile}{"Definition"}};
615 $ruledefcnt = $ruledefcnt / 2;
617 # Loop over rule file rules
618 foreach my $ruledef (sort {$a <=> $b} keys(%{$snortrules{$rulefile}{"Definition"}})) {
620 my $ruledefchecked = '';
622 # If have display 2 rules, start new row
623 if (($ruledefdisplaycnt % 2) == 0) {
625 $ruledefdisplaycnt = 0;
628 # Check for rules state
629 if ($snortrules{$rulefile}{'Definition'}{$ruledef}{'State'} eq 'Enabled') {
630 $ruledefchecked = 'CHECKED';
633 # Create rule file rule's checkbox
634 $checkboxname = "SNORT_RULE_$rulefile";
635 $checkboxname .= "_$ruledef";
636 print "<td class='base'><input type='checkbox' NAME='$checkboxname' $ruledefchecked> $snortrules{$rulefile}{'Definition'}{$ruledef}{'Description'}</td>";
639 $ruledefdisplaycnt++;
642 # If do not have second rule for row, create empty cell
643 if (($ruledefdisplaycnt % 2) != 0) {
644 print "<td class='base'></td>";
647 # Close display table
648 print "</tr></table></td></tr>";
651 # Close display table
654 # Increment ruledisplaycnt
657 print "</td></tr></table></td></tr></table>";
661 <td width='100%' align='right'><input type='submit' name='ACTION' value='$Lang::tr{'update'}' /></td>
662 <!-- space for future online help link -->
672 ####################### End added for snort rules control #################################
673 &Header
::closebigbox
();
674 &Header
::closepage
();
676 sub downloadrulesfile
{
680 unlink("/var/tmp/log");
682 unless (-e
"${General::swroot}/red/active") {
683 $errormessage = $Lang::tr
{'could not download latest updates'};
687 my %proxysettings=();
688 &General
::readhash
("${General::swroot}/proxy/settings", \
%proxysettings);
690 if ($_=$proxysettings{'UPSTREAM_PROXY'}) {
691 ($peer, $peerport) = (/^(?:[a-zA-Z ]+\:\/\
/)?(?:[A-Za-z0-9\_\.\-]*?(?:\:[A-Za-z0-9\_\.\-]*?)?\@)?([a-zA-Z0-9\.\_\-]*?)(?:\:([0-9]{1,5}))?(?:\/.*?
)?
$/);
695 system("wget -r --proxy=on --proxy-user=$proxysettings{'UPSTREAM_USER'} --proxy-passwd=$proxysettings{'UPSTREAM_PASSWORD'} -e http_proxy=http://$peer:$peerport/ -e https_proxy=http://$peer:$peerport/ -o /var/tmp/log --output-document=/var/tmp/snortrules.tar.gz $url");
697 system("wget -r -o /var/tmp/log --output-document=/var/tmp/snortrules.tar.gz $url");