]>
git.ipfire.org Git - ipfire-2.x.git/blob - html/cgi-bin/ids.cgi
5 # This code is distributed under the terms of the GPL
7 # (c) The SmoothWall Team
12 use File
::Temp qw
/ tempfile tempdir /;
15 # enable only the following on debugging purpose
17 use CGI
::Carp
'fatalsToBrowser';
19 require '/var/ipfire/general-functions.pl';
20 require "${General::swroot}/lang.pl";
21 require "${General::swroot}/header.pl";
24 my %mainsettings = ();
25 &General
::readhash
("${General::swroot}/main/settings", \
%mainsettings);
26 &General
::readhash
("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \
%color);
32 our $errormessage = '';
33 our $md5 = '0';# not '' to avoid displaying the wrong message when INSTALLMD5 not set
38 &General
::readhash
("${General::swroot}/ethernet/settings", \
%netsettings);
40 &Header
::showhttpheaders
();
42 $snortsettings{'ENABLE_SNORT'} = 'off';
43 $snortsettings{'ENABLE_SNORT_GREEN'} = 'off';
44 $snortsettings{'ENABLE_SNORT_BLUE'} = 'off';
45 $snortsettings{'ENABLE_SNORT_ORANGE'} = 'off';
46 $snortsettings{'ACTION'} = '';
47 $snortsettings{'RULES'} = '';
48 $snortsettings{'OINKCODE'} = '';
49 $snortsettings{'INSTALLDATE'} = '';
50 $snortsettings{'INSTALLMD5'} = '';
52 &Header
::getcgihash
(\
%snortsettings, {'wantfile' => 1, 'filevar' => 'FH'});
54 ####################### Added for snort rules control #################################
57 my $restartsnortrequired = 0;
60 my $table1colour = '';
61 my $table2colour = '';
65 my $linkedrulefile = '';
67 my $checkboxname = '';
69 if (-e
"/etc/snort/snort.conf") {
70 # Open snort.conf file, read it in, close it, and re-open for writing
71 open(FILE
, "/etc/snort/snort.conf") or die 'Unable to read snort config file.';
72 @snortconfig = <FILE
>;
74 open(FILE
, ">/etc/snort/snort.conf") or die 'Unable to write snort config file.';
77 foreach my $line (@snortconfig) {
81 # Check for a line with .rules
82 if ($line =~ /\.rules$/) {
83 # Parse out rule file name
85 $rule =~ s/\$RULE_PATH\///i
;
86 $rule =~ s/ ?include ?//i;
88 my $snortrulepathrule = "$snortrulepath/$rule";
90 # Open rule file and read in contents
91 open(RULEFILE
, "$snortrulepath/$rule") or die "Unable to read snort rule file for reading => $snortrulepath/$rule.";
92 my @snortrulefile = <RULEFILE
>;
94 open(RULEFILE
, ">$snortrulepath/$rule") or die "Unable to write snort rule file for writing $snortrulepath/$rule";
99 my $snortruledesc = '';
100 my %snortruledef = ();
103 # Loop over rule file contents
104 foreach my $ruleline (@snortrulefile) {
107 # If still looking for a description
109 # If line does not start with a # anymore, then done looking for a description
110 if ($ruleline !~ /^\#/) {
114 # If see more than one dashed line, (start to) create rule file description
115 if ($dashlinecnt > 1) {
116 # Check for a line starting with a #
117 if ($ruleline =~ /^\#/) {
118 # Create tempruleline
119 my $tempruleline = $ruleline;
121 # Strip off # and clean up line
122 $tempruleline =~ s/\# ?//i;
124 # Check for part of a description
125 if ($snortruledesc eq '') {
126 $snortruledesc = $tempruleline;
128 $snortruledesc .= " $tempruleline";
136 # If have a dashed line, increment count
137 if ($ruleline =~ /\# ?\-+/) {
141 # Parse out rule file rule's message for display
142 if ($ruleline =~ /(msg\:\"[^\"]+\";)/) {
145 $msg =~ s/msg\:\"//i;
147 $snortruledef{$rulecnt}{'Description'} = $msg;
149 # Check for 'Save' and rule file displayed in query string
150 if (($snortsettings{'ACTION'} eq $Lang::tr
{'update'}) && ($ENV{'QUERY_STRING'} =~ /$rule/i)) {
151 # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
152 if ((($ruleline =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"})) || (($ruleline !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}))) {
153 $restartsnortrequired = 1;
156 # Strip out leading # from rule line
157 $ruleline =~ s/\# ?//i;
159 # Check if it does not exists (which means it is disabled), append a #
160 if (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}) {
161 $ruleline = "#"." $ruleline";
165 # Check if ruleline does not begin with a #, so it is enabled
166 if ($ruleline !~ /^\#/) {
167 $snortruledef{$rulecnt++}{'State'} = 'Enabled';
169 # Otherwise it is disabled
170 $snortruledef{$rulecnt++}{'State'} = 'Disabled';
175 # Print ruleline to RULEFILE
176 print RULEFILE
"$ruleline\n";
183 if ($snortsettings{'ACTION'} eq $Lang::tr
{'update'}) {
184 # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
185 if ((($line =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule"})) || (($line !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule"}))) {
186 $restartsnortrequired = 1;
189 # Strip out leading # from rule line
192 # Check if it does not exists (which means it is disabled), append a #
193 if (!exists $snortsettings{"SNORT_RULE_$rule"}) {
198 # Check for rule state
199 if ($line =~ /^\#/) {
200 $snortrules{$rule}{"State"} = "Disabled";
202 $snortrules{$rule}{"State"} = "Enabled";
205 # Set rule description
206 $snortrules{$rule}{"Description"} = $snortruledesc;
208 # Loop over sorted rules
209 foreach my $ruledef (sort {$a <=> $b} keys(%snortruledef)) {
210 $snortrules{$rule}{"Definition"}{$ruledef}{'Description'} = $snortruledef{$ruledef}{'Description'};
211 $snortrules{$rule}{"Definition"}{$ruledef}{'State'} = $snortruledef{$ruledef}{'State'};
215 print FILE
"$line\n";
216 } elsif ($line =~ /var RULE_PATH/) {
217 ($tmp, $tmp, $snortrulepath) = split(' ', $line);
218 print FILE
"$line\n";
220 print FILE
"$line\n";
225 if ($restartsnortrequired) {
226 system('/usr/local/bin/snortctrl','restart');
230 ####################### End added for snort rules control #################################
232 if ($snortsettings{'RULES'} eq 'subscripted') {
233 $url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-CURRENT_s.tar.gz";
234 } elsif ($snortsettings{'RULES'} eq 'registered') {
235 $url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-CURRENT.tar.gz";
236 } elsif ($snortsettings{'RULES'} eq 'bleeding') {
237 $url="http://www.bleedingsnort.com/bleeding.rules.tar.gz";
239 $url="http://www.snort.org/pub-bin/downloads.cgi/Download/comm_rules/Community-Rules-CURRENT.tar.gz";
242 if ($snortsettings{'ACTION'} eq $Lang::tr
{'save'})
244 $errormessage = $Lang::tr
{'invalid input for oink code'} unless (
245 ($snortsettings{'OINKCODE'} =~ /^[a-z0-9]+$/) ||
246 ($snortsettings{'RULESTYPE'} eq 'nothing' ) );
248 &General
::writehash
("${General::swroot}/snort/settings", \
%snortsettings);
249 if ($snortsettings{'ENABLE_SNORT'} eq 'on')
251 system ('/usr/bin/touch', "${General::swroot}/snort/enable");
253 unlink "${General::swroot}/snort/enable";
255 if ($snortsettings{'ENABLE_SNORT_GREEN'} eq 'on')
257 system ('/usr/bin/touch', "${General::swroot}/snort/enable_green");
259 unlink "${General::swroot}/snort/enable_green";
261 if ($snortsettings{'ENABLE_SNORT_BLUE'} eq 'on')
263 system ('/usr/bin/touch', "${General::swroot}/snort/enable_blue");
265 unlink "${General::swroot}/snort/enable_blue";
267 if ($snortsettings{'ENABLE_SNORT_ORANGE'} eq 'on')
269 system ('/usr/bin/touch', "${General::swroot}/snort/enable_orange");
271 unlink "${General::swroot}/snort/enable_orange";
274 system('/usr/local/bin/snortctrl','restart');
277 # INSTALLMD5 is not in the form, so not retrieved by getcgihash
278 &General
::readhash
("${General::swroot}/snort/settings", \
%snortsettings);
281 if ($snortsettings{'ACTION'} eq $Lang::tr
{'download new ruleset'}) {
283 if (($snortsettings{'INSTALLMD5'} ne $md5) && defined $md5 ) {
285 my $filename = &downloadrulesfile
();
286 if (defined $filename) {
288 $realmd5 = `/usr/bin/md5sum $filename`;
290 $realmd5 =~ s/^(\w+)\s.*$/$1/;
291 if ($md5 ne $realmd5) {
292 $errormessage = "$Lang::tr{'invalid md5sum'}";
294 $results = "<b>$Lang::tr{'installed updates'}</b>\n<pre>";
295 $results .=`/usr/local/bin/oinkmaster.pl -s -u file://$filename -C /var/ipfire/snort/oinkmaster.conf -o /etc/snort/rules 2>&1`;
296 $results .= "</pre>";
303 $checked{'ENABLE_SNORT'}{'off'} = '';
304 $checked{'ENABLE_SNORT'}{'on'} = '';
305 $checked{'ENABLE_SNORT'}{$snortsettings{'ENABLE_SNORT'}} = "checked='checked'";
306 $checked{'ENABLE_SNORT_GREEN'}{'off'} = '';
307 $checked{'ENABLE_SNORT_GREEN'}{'on'} = '';
308 $checked{'ENABLE_SNORT_GREEN'}{$snortsettings{'ENABLE_SNORT_GREEN'}} = "checked='checked'";
309 $checked{'ENABLE_SNORT_BLUE'}{'off'} = '';
310 $checked{'ENABLE_SNORT_BLUE'}{'on'} = '';
311 $checked{'ENABLE_SNORT_BLUE'}{$snortsettings{'ENABLE_SNORT_BLUE'}} = "checked='checked'";
312 $checked{'ENABLE_SNORT_ORANGE'}{'off'} = '';
313 $checked{'ENABLE_SNORT_ORANGE'}{'on'} = '';
314 $checked{'ENABLE_SNORT_ORANGE'}{$snortsettings{'ENABLE_SNORT_ORANGE'}} = "checked='checked'";
315 $selected{'RULES'}{'nothing'} = '';
316 $selected{'RULES'}{'bleeding'} = '';
317 $selected{'RULES'}{'community'} = '';
318 $selected{'RULES'}{'registered'} = '';
319 $selected{'RULES'}{'subscripted'} = '';
320 $selected{'RULES'}{$snortsettings{'RULES'}} = "selected='selected'";
322 &Header
::openpage
($Lang::tr
{'intrusion detection system'}, 1, '');
324 ####################### Added for snort rules control #################################
325 print "<SCRIPT LANGUAGE='JavaScript' SRC='/include/snortupdateutility.js'></SCRIPT>";
327 <STYLE TYPE="text/css">
334 background-color: $color{'color22'};
338 background-color: $color{'color20'};
341 border: double #FF0000;
342 background-color: #DCDCDC;
348 ####################### End added for snort rules control #################################
350 &Header
::openbigbox
('100%', 'left', '', $errormessage);
353 &Header
::openbox
('100%', 'left', $Lang::tr
{'error messages'});
354 print "<class name='base'>$errormessage\n";
355 print " </class>\n";
359 &Header
::openbox
('100%', 'left', $Lang::tr
{'intrusion detection system2'});
361 <form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'>
363 <td class='base'><input type='checkbox' name='ENABLE_SNORT_GREEN' $checked{'ENABLE_SNORT_GREEN'}{'on'} />
368 if ($netsettings{'BLUE_DEV'} ne '') {
371 <td class='base'><input type='checkbox' name='ENABLE_SNORT_BLUE' $checked{'ENABLE_SNORT_BLUE'}{'on'} />
377 if ($netsettings{'ORANGE_DEV'} ne '') {
380 <td class='base'><input type='checkbox' name='ENABLE_SNORT_ORANGE' $checked{'ENABLE_SNORT_ORANGE'}{'on'} />
388 <td class='base'><input type='checkbox' name='ENABLE_SNORT' $checked{'ENABLE_SNORT'}{'on'} />
395 <td><b>$Lang::tr{'ids rules update'}</b></td>
398 <td><select name='RULES'>
399 <option value='nothing' $selected{'RULES'}{'nothing'} >$Lang::tr{'no'}</option>
400 <option value='bleeding' $selected{'RULES'}{'bleeding'} >$Lang::tr{'bleeding rules'}</option>
401 <option value='community' $selected{'RULES'}{'community'} >$Lang::tr{'community rules'}</option>
402 <option value='registered' $selected{'RULES'}{'registered'} >$Lang::tr{'registered user rules'}</option>
403 <option value='subscripted' $selected{'RULES'}{'subscripted'} >$Lang::tr{'subscripted user rules'}</option>
409 $Lang::tr{'ids rules license'} <a href='http://www.snort.org/' target='_blank'>http://www.snort.org</a>.<br />
411 $Lang::tr{'ids rules license2'} <a href='http://www.snort.org/reg-bin/userprefs.cgi' target='_blank'>USER PREFERENCES</a>, $Lang::tr{'ids rules license3'}<br />
415 <td nowrap='nowrap'>Oinkcode: <input type='text' size='40' name='OINKCODE' value='$snortsettings{'OINKCODE'}' /></td>
418 <td width='30%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'download new ruleset'}' />
422 if ($snortsettings{'INSTALLMD5'} eq $md5) {
423 print " $Lang::tr{'rules already up to date'}</td>";
425 if ( $snortsettings{'ACTION'} eq $Lang::tr
{'download new ruleset'} && $md5 eq $realmd5 ) {
426 $snortsettings{'INSTALLMD5'} = $realmd5;
427 $snortsettings{'INSTALLDATE'} = `/bin/date +'%Y-%m-%d'`;
428 &General
::writehash
("${General::swroot}/snort/settings", \
%snortsettings);
430 print " $Lang::tr{'updates installed'}: $snortsettings{'INSTALLDATE'}</td>";
438 <td width='55%'> </td>
439 <td width='40%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
441 <!-- space for future online help link -->
449 if ($results ne '') {
454 ####################### Added for snort rules control #################################
455 if ( -e
"${General::swroot}/snort/enable" || -e
"${General::swroot}/snort/enable_green" || -e
"${General::swroot}/snort/enable_blue" || -e
"${General::swroot}/snort/enable_orange" ) {
456 &Header
::openbox
('100%', 'LEFT', $Lang::tr
{'intrusion detection system rules'});
457 # Output display table for rule files
458 print "<TABLE width='100%'><TR><TD VALIGN='TOP'><TABLE>";
460 print "<form method='post'>";
463 my $ruledisplaycnt = 1;
464 my $rulecnt = keys %snortrules;
466 $rulecnt = $rulecnt / 2;
468 # Loop over each rule file
469 foreach my $rulefile (sort keys(%snortrules)) {
470 my $rulechecked = '';
472 # Check if reached half-way through rule file rules to start new column
473 if ($ruledisplaycnt > $rulecnt) {
474 print "</TABLE></TD><TD VALIGN='TOP'><TABLE>";
478 # Check if rule file is enabled
479 if ($snortrules{$rulefile}{"State"} eq 'Enabled') {
480 $rulechecked = 'CHECKED';
483 # Create rule file link, vars array, and display flag
484 my $rulefilelink = "?RULEFILE=$rulefile";
485 my $rulefiletoclose = '';
487 my $displayrulefilerules = 0;
489 # Check for passed in query string
490 if ($ENV{'QUERY_STRING'}) {
492 @queryvars = split(/\&/, $ENV{'QUERY_STRING'});
495 foreach $value (@queryvars) {
496 # Split out var pairs
497 ($var, $linkedrulefile) = split(/=/, $value);
499 # Check if var is 'RULEFILE'
500 if ($var eq 'RULEFILE') {
501 # Check if rulefile equals linkedrulefile
502 if ($rulefile eq $linkedrulefile) {
504 $displayrulefilerules = 1;
506 # Strip out rulefile from rulefilelink
507 $rulefilelink =~ s/RULEFILE=$linkedrulefile//g;
509 # Add linked rule file to rulefilelink
510 $rulefilelink .= "&RULEFILE=$linkedrulefile";
516 # Strip out extra & & ? from rulefilelink
517 $rulefilelink =~ s/^\?\&/\?/i;
519 # Check for a single '?' and replace with page for proper link display
520 if ($rulefilelink eq '?') {
521 $rulefilelink = "ids.cgi";
524 # Output rule file name and checkbox
525 print "<TR><TD CLASS='base' VALIGN='TOP'><INPUT TYPE='checkbox' NAME='SNORT_RULE_$rulefile' $rulechecked> <A HREF='$rulefilelink'>$rulefile</A></TD></TR>";
526 print "<TR><TD CLASS='base' VALIGN='TOP'>";
528 # Check for empty 'Description'
529 if ($snortrules{$rulefile}{'Description'} eq '') {
530 print "<TABLE WIDTH='100%'><TR><TD CLASS='base'>No description available</TD></TR>";
532 # Output rule file 'Description'
533 print "<TABLE WIDTH='100%'><TR><TD CLASS='base'>$snortrules{$rulefile}{'Description'}</TD></TR>";
536 # Check for display flag
537 if ($displayrulefilerules) {
538 # Rule file definition rule display
539 print "<TR><TD CLASS='base' VALIGN='TOP'><TABLE border=1><TR>";
542 my $ruledefdisplaycnt = 0;
543 my $ruledefcnt = keys %{$snortrules{$rulefile}{"Definition"}};
545 $ruledefcnt = $ruledefcnt / 2;
547 # Loop over rule file rules
548 foreach my $ruledef (sort {$a <=> $b} keys(%{$snortrules{$rulefile}{"Definition"}})) {
550 my $ruledefchecked = '';
552 # If have display 2 rules, start new row
553 if (($ruledefdisplaycnt % 2) == 0) {
555 $ruledefdisplaycnt = 0;
558 # Check for rules state
559 if ($snortrules{$rulefile}{'Definition'}{$ruledef}{'State'} eq 'Enabled') {
560 $ruledefchecked = 'CHECKED';
563 # Create rule file rule's checkbox
564 $checkboxname = "SNORT_RULE_$rulefile";
565 $checkboxname .= "_$ruledef";
566 print "<TD CLASS='base'><INPUT TYPE='checkbox' NAME='$checkboxname' $ruledefchecked> $snortrules{$rulefile}{'Definition'}{$ruledef}{'Description'}</TD>";
569 $ruledefdisplaycnt++;
572 # If do not have second rule for row, create empty cell
573 if (($ruledefdisplaycnt % 2) != 0) {
574 print "<TD CLASS='base'></TD>";
577 # Close display table
578 print "</TR></TABLE></TD></TR>";
581 # Close display table
584 # Increment ruledisplaycnt
588 print "</TD></TR></TABLE></TD></TR></TABLE>";
592 <td width='33%'> </td>
593 <td width='33%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'update'}' /></td>
595 <!-- space for future online help link -->
604 ####################### End added for snort rules control #################################
605 &Header
::closebigbox
();
606 &Header
::closepage
();
609 # Retrieve MD5 sum from $url.md5 file
611 my $md5buf = &geturl
("$url.md5");
612 return undef unless $md5buf;
614 if (0) { # 1 to debug
617 ($fh, $filename) = tempfile
('/tmp/XXXXXXXX',SUFFIX
=> '.md5' );
619 syswrite ($fh, $md5buf->content);
622 return $md5buf->content;
624 sub downloadrulesfile
{
625 my $return = &geturl
($url);
626 return undef unless $return;
628 if (index($return->content, "\037\213") == -1 ) { # \037\213 is .gz beginning
629 $errormessage = $Lang::tr
{'invalid loaded file'};
635 ($fh, $filename) = tempfile
('/tmp/XXXXXXXX',SUFFIX
=> '.tar.gz' );#oinkmaster work only with this extension
637 syswrite ($fh, $return->content);
645 unless (-e
"${General::swroot}/red/active") {
646 $errormessage = $Lang::tr
{'could not download latest updates'};
650 my $downloader = LWP
::UserAgent
->new;
651 $downloader->timeout(5);
653 my %proxysettings=();
654 &General
::readhash
("${General::swroot}/proxy/settings", \
%proxysettings);
656 if ($_=$proxysettings{'UPSTREAM_PROXY'}) {
657 my ($peer, $peerport) = (/^(?:[a-zA-Z ]+\:\/\
/)?(?:[A-Za-z0-9\_\.\-]*?(?:\:[A-Za-z0-9\_\.\-]*?)?\@)?([a-zA-Z0-9\.\_\-]*?)(?:\:([0-9]{1,5}))?(?:\/.*?
)?
$/);
658 if ($proxysettings{'UPSTREAM_USER'}) {
659 $downloader->proxy("http","http://$proxysettings{'UPSTREAM_USER'}:$proxysettings{'UPSTREAM_PASSWORD'}@"."$peer:$peerport/");
661 $downloader->proxy("http","http://$peer:$peerport/");
665 my $return = $downloader->get($url,'Cache-Control','no-cache');
667 if ($return->code == 403) {
668 $errormessage = $Lang::tr
{'access refused with this oinkcode'};
670 } elsif (!$return->is_success()) {
671 $errormessage = $Lang::tr
{'could not download latest updates'};