]>
git.ipfire.org Git - people/ummeegge/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";
27 our $errormessage = '';
28 our $md5 = '0';# not '' to avoid displaying the wrong message when INSTALLMD5 not set
33 &General
::readhash
("${General::swroot}/ethernet/settings", \
%netsettings);
35 &Header
::showhttpheaders
();
37 $snortsettings{'ENABLE_SNORT'} = 'off';
38 $snortsettings{'ENABLE_SNORT_GREEN'} = 'off';
39 $snortsettings{'ENABLE_SNORT_BLUE'} = 'off';
40 $snortsettings{'ENABLE_SNORT_ORANGE'} = 'off';
41 $snortsettings{'ACTION'} = '';
42 $snortsettings{'RULES'} = '';
43 $snortsettings{'OINKCODE'} = '';
44 $snortsettings{'INSTALLDATE'} = '';
45 $snortsettings{'INSTALLMD5'} = '';
47 &Header
::getcgihash
(\
%snortsettings, {'wantfile' => 1, 'filevar' => 'FH'});
49 ####################### Added for snort rules control #################################
52 my $restartsnortrequired = 0;
55 my $table1colour = '';
56 my $table2colour = '';
60 my $linkedrulefile = '';
62 my $checkboxname = '';
64 if (-e
"/etc/snort/snort.conf") {
65 # Open snort.conf file, read it in, close it, and re-open for writing
66 open(FILE
, "/etc/snort/snort.conf") or die 'Unable to read snort config file.';
67 @snortconfig = <FILE
>;
69 open(FILE
, ">/etc/snort/snort.conf") or die 'Unable to write snort config file.';
72 foreach my $line (@snortconfig) {
76 # Check for a line with .rules
77 if ($line =~ /\.rules$/) {
78 # Parse out rule file name
80 $rule =~ s/\$RULE_PATH\///i
;
81 $rule =~ s/ ?include ?//i;
83 my $snortrulepathrule = "$snortrulepath/$rule";
85 # Open rule file and read in contents
86 open(RULEFILE
, "$snortrulepath/$rule") or die "Unable to read snort rule file for reading => $snortrulepath/$rule.";
87 my @snortrulefile = <RULEFILE
>;
89 open(RULEFILE
, ">$snortrulepath/$rule") or die "Unable to write snort rule file for writing $snortrulepath/$rule";
94 my $snortruledesc = '';
95 my %snortruledef = ();
98 # Loop over rule file contents
99 foreach my $ruleline (@snortrulefile) {
102 # If still looking for a description
104 # If line does not start with a # anymore, then done looking for a description
105 if ($ruleline !~ /^\#/) {
109 # If see more than one dashed line, (start to) create rule file description
110 if ($dashlinecnt > 1) {
111 # Check for a line starting with a #
112 if ($ruleline =~ /^\#/) {
113 # Create tempruleline
114 my $tempruleline = $ruleline;
116 # Strip off # and clean up line
117 $tempruleline =~ s/\# ?//i;
119 # Check for part of a description
120 if ($snortruledesc eq '') {
121 $snortruledesc = $tempruleline;
123 $snortruledesc .= " $tempruleline";
131 # If have a dashed line, increment count
132 if ($ruleline =~ /\# ?\-+/) {
136 # Parse out rule file rule's message for display
137 if ($ruleline =~ /(msg\:\"[^\"]+\";)/) {
140 $msg =~ s/msg\:\"//i;
142 $snortruledef{$rulecnt}{'Description'} = $msg;
144 # Check for 'Save' and rule file displayed in query string
145 if (($snortsettings{'ACTION'} eq $Lang::tr
{'update'}) && ($ENV{'QUERY_STRING'} =~ /$rule/i)) {
146 # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
147 if ((($ruleline =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"})) || (($ruleline !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}))) {
148 $restartsnortrequired = 1;
151 # Strip out leading # from rule line
152 $ruleline =~ s/\# ?//i;
154 # Check if it does not exists (which means it is disabled), append a #
155 if (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}) {
156 $ruleline = "#"." $ruleline";
160 # Check if ruleline does not begin with a #, so it is enabled
161 if ($ruleline !~ /^\#/) {
162 $snortruledef{$rulecnt++}{'State'} = 'Enabled';
164 # Otherwise it is disabled
165 $snortruledef{$rulecnt++}{'State'} = 'Disabled';
170 # Print ruleline to RULEFILE
171 print RULEFILE
"$ruleline\n";
178 if ($snortsettings{'ACTION'} eq $Lang::tr
{'update'}) {
179 # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
180 if ((($line =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule"})) || (($line !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule"}))) {
181 $restartsnortrequired = 1;
184 # Strip out leading # from rule line
187 # Check if it does not exists (which means it is disabled), append a #
188 if (!exists $snortsettings{"SNORT_RULE_$rule"}) {
193 # Check for rule state
194 if ($line =~ /^\#/) {
195 $snortrules{$rule}{"State"} = "Disabled";
197 $snortrules{$rule}{"State"} = "Enabled";
200 # Set rule description
201 $snortrules{$rule}{"Description"} = $snortruledesc;
203 # Loop over sorted rules
204 foreach my $ruledef (sort {$a <=> $b} keys(%snortruledef)) {
205 $snortrules{$rule}{"Definition"}{$ruledef}{'Description'} = $snortruledef{$ruledef}{'Description'};
206 $snortrules{$rule}{"Definition"}{$ruledef}{'State'} = $snortruledef{$ruledef}{'State'};
210 print FILE
"$line\n";
211 } elsif ($line =~ /var RULE_PATH/) {
212 ($tmp, $tmp, $snortrulepath) = split(' ', $line);
213 print FILE
"$line\n";
215 print FILE
"$line\n";
220 if ($restartsnortrequired) {
221 system('/usr/local/bin/restartsnort','red','orange','blue','green');
225 ####################### End added for snort rules control #################################
227 if ($snortsettings{'RULES'} eq 'subscripted') {
228 $url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-CURRENT_s.tar.gz";
229 } elsif ($snortsettings{'RULES'} eq 'registered') {
230 $url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-CURRENT.tar.gz";
231 } elsif ($snortsettings{'RULES'} eq 'bleeding') {
232 $url="http://www.bleedingsnort.com/bleeding.rules.tar.gz";
234 $url="http://www.snort.org/pub-bin/downloads.cgi/Download/comm_rules/Community-Rules-CURRENT.tar.gz";
237 if ($snortsettings{'ACTION'} eq $Lang::tr
{'save'})
239 $errormessage = $Lang::tr
{'invalid input for oink code'} unless (
240 ($snortsettings{'OINKCODE'} =~ /^[a-z0-9]+$/) ||
241 ($snortsettings{'RULESTYPE'} eq 'nothing' ) );
243 &General
::writehash
("${General::swroot}/snort/settings", \
%snortsettings);
244 if ($snortsettings{'ENABLE_SNORT'} eq 'on')
246 system ('/usr/bin/touch', "${General::swroot}/snort/enable");
248 unlink "${General::swroot}/snort/enable";
250 if ($snortsettings{'ENABLE_SNORT_GREEN'} eq 'on')
252 system ('/usr/bin/touch', "${General::swroot}/snort/enable_green");
254 unlink "${General::swroot}/snort/enable_green";
256 if ($snortsettings{'ENABLE_SNORT_BLUE'} eq 'on')
258 system ('/usr/bin/touch', "${General::swroot}/snort/enable_blue");
260 unlink "${General::swroot}/snort/enable_blue";
262 if ($snortsettings{'ENABLE_SNORT_ORANGE'} eq 'on')
264 system ('/usr/bin/touch', "${General::swroot}/snort/enable_orange");
266 unlink "${General::swroot}/snort/enable_orange";
269 system('/usr/local/bin/restartsnort','red','orange','blue','green');
272 # INSTALLMD5 is not in the form, so not retrieved by getcgihash
273 &General
::readhash
("${General::swroot}/snort/settings", \
%snortsettings);
276 if ($snortsettings{'ACTION'} eq $Lang::tr
{'download new ruleset'}) {
278 if (($snortsettings{'INSTALLMD5'} ne $md5) && defined $md5 ) {
280 my $filename = &downloadrulesfile
();
281 if (defined $filename) {
283 $realmd5 = `/usr/bin/md5sum $filename`;
285 $realmd5 =~ s/^(\w+)\s.*$/$1/;
286 if ($md5 ne $realmd5) {
287 $errormessage = "$Lang::tr{'invalid md5sum'}";
289 $results = "<b>$Lang::tr{'installed updates'}</b>\n<pre>";
290 $results .=`/usr/local/bin/oinkmaster.pl -s -u file://$filename -C /var/ipfire/snort/oinkmaster.conf -o /etc/snort/rules 2>&1`;
291 $results .= "</pre>";
298 $checked{'ENABLE_SNORT'}{'off'} = '';
299 $checked{'ENABLE_SNORT'}{'on'} = '';
300 $checked{'ENABLE_SNORT'}{$snortsettings{'ENABLE_SNORT'}} = "checked='checked'";
301 $checked{'ENABLE_SNORT_GREEN'}{'off'} = '';
302 $checked{'ENABLE_SNORT_GREEN'}{'on'} = '';
303 $checked{'ENABLE_SNORT_GREEN'}{$snortsettings{'ENABLE_SNORT_GREEN'}} = "checked='checked'";
304 $checked{'ENABLE_SNORT_BLUE'}{'off'} = '';
305 $checked{'ENABLE_SNORT_BLUE'}{'on'} = '';
306 $checked{'ENABLE_SNORT_BLUE'}{$snortsettings{'ENABLE_SNORT_BLUE'}} = "checked='checked'";
307 $checked{'ENABLE_SNORT_ORANGE'}{'off'} = '';
308 $checked{'ENABLE_SNORT_ORANGE'}{'on'} = '';
309 $checked{'ENABLE_SNORT_ORANGE'}{$snortsettings{'ENABLE_SNORT_ORANGE'}} = "checked='checked'";
310 $selected{'RULES'}{'nothing'} = '';
311 $selected{'RULES'}{'bleeding'} = '';
312 $selected{'RULES'}{'community'} = '';
313 $selected{'RULES'}{'registered'} = '';
314 $selected{'RULES'}{'subscripted'} = '';
315 $selected{'RULES'}{$snortsettings{'RULES'}} = "selected='selected'";
317 &Header
::openpage
($Lang::tr
{'intrusion detection system'}, 1, '');
319 ####################### Added for snort rules control #################################
320 print "<SCRIPT LANGUAGE='JavaScript' SRC='/include/snortupdateutility.js'></SCRIPT>";
322 <STYLE TYPE="text/css">
329 background-color: $table1colour;
333 background-color: $table2colour;
336 border: double #FF0000;
337 background-color: #DCDCDC;
343 ####################### End added for snort rules control #################################
345 &Header
::openbigbox
('100%', 'left', '', $errormessage);
348 &Header
::openbox
('100%', 'left', $Lang::tr
{'error messages'});
349 print "<class name='base'>$errormessage\n";
350 print " </class>\n";
354 &Header
::openbox
('100%', 'left', $Lang::tr
{'intrusion detection system2'});
356 <form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'>
358 <td class='base'><input type='checkbox' name='ENABLE_SNORT_GREEN' $checked{'ENABLE_SNORT_GREEN'}{'on'} />
363 if ($netsettings{'BLUE_DEV'} ne '') {
366 <td class='base'><input type='checkbox' name='ENABLE_SNORT_BLUE' $checked{'ENABLE_SNORT_BLUE'}{'on'} />
372 if ($netsettings{'ORANGE_DEV'} ne '') {
375 <td class='base'><input type='checkbox' name='ENABLE_SNORT_ORANGE' $checked{'ENABLE_SNORT_ORANGE'}{'on'} />
383 <td class='base'><input type='checkbox' name='ENABLE_SNORT' $checked{'ENABLE_SNORT'}{'on'} />
390 <td><b>$Lang::tr{'ids rules update'}</b></td>
393 <td><select name='RULES'>
394 <option value='nothing' $selected{'RULES'}{'nothing'} >$Lang::tr{'no'}</option>
395 <option value='bleeding' $selected{'RULES'}{'bleeding'} >$Lang::tr{'bleeding rules'}</option>
396 <option value='community' $selected{'RULES'}{'community'} >$Lang::tr{'community rules'}</option>
397 <option value='registered' $selected{'RULES'}{'registered'} >$Lang::tr{'registered user rules'}</option>
398 <option value='subscripted' $selected{'RULES'}{'subscripted'} >$Lang::tr{'subscripted user rules'}</option>
404 $Lang::tr{'ids rules license'} <a href='http://www.snort.org/' target='_blank'>http://www.snort.org</a>.<br />
406 $Lang::tr{'ids rules license2'} <a href='http://www.snort.org/reg-bin/userprefs.cgi' target='_blank'>USER PREFERENCES</a>, $Lang::tr{'ids rules license3'}<br />
410 <td nowrap='nowrap'>Oinkcode: <input type='text' size='40' name='OINKCODE' value='$snortsettings{'OINKCODE'}' /></td>
413 <td width='30%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'download new ruleset'}' />
417 if ($snortsettings{'INSTALLMD5'} eq $md5) {
418 print " $Lang::tr{'rules already up to date'}</td>";
420 if ( $snortsettings{'ACTION'} eq $Lang::tr
{'download new ruleset'} && $md5 eq $realmd5 ) {
421 $snortsettings{'INSTALLMD5'} = $realmd5;
422 $snortsettings{'INSTALLDATE'} = `/bin/date +'%Y-%m-%d'`;
423 &General
::writehash
("${General::swroot}/snort/settings", \
%snortsettings);
425 print " $Lang::tr{'updates installed'}: $snortsettings{'INSTALLDATE'}</td>";
433 <td width='55%'> </td>
434 <td width='40%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
436 <!-- space for future online help link -->
444 if ($results ne '') {
449 ####################### Added for snort rules control #################################
450 if ( -e
"${General::swroot}/snort/enable" || -e
"${General::swroot}/snort/enable_green" || -e
"${General::swroot}/snort/enable_blue" || -e
"${General::swroot}/snort/enable_orange" ) {
451 &Header
::openbox
('100%', 'LEFT', $Lang::tr
{'intrusion detection system rules'});
452 # Output display table for rule files
453 print "<TABLE width='100%'><TR><TD VALIGN='TOP'><TABLE>";
455 print "<form method='post'>";
458 my $ruledisplaycnt = 1;
459 my $rulecnt = keys %snortrules;
461 $rulecnt = $rulecnt / 2;
463 # Loop over each rule file
464 foreach my $rulefile (sort keys(%snortrules)) {
465 my $rulechecked = '';
467 # Check if reached half-way through rule file rules to start new column
468 if ($ruledisplaycnt > $rulecnt) {
469 print "</TABLE></TD><TD VALIGN='TOP'><TABLE>";
473 # Check if rule file is enabled
474 if ($snortrules{$rulefile}{"State"} eq 'Enabled') {
475 $rulechecked = 'CHECKED';
478 # Create rule file link, vars array, and display flag
479 my $rulefilelink = "?RULEFILE=$rulefile";
480 my $rulefiletoclose = '';
482 my $displayrulefilerules = 0;
484 # Check for passed in query string
485 if ($ENV{'QUERY_STRING'}) {
487 @queryvars = split(/\&/, $ENV{'QUERY_STRING'});
490 foreach $value (@queryvars) {
491 # Split out var pairs
492 ($var, $linkedrulefile) = split(/=/, $value);
494 # Check if var is 'RULEFILE'
495 if ($var eq 'RULEFILE') {
496 # Check if rulefile equals linkedrulefile
497 if ($rulefile eq $linkedrulefile) {
499 $displayrulefilerules = 1;
501 # Strip out rulefile from rulefilelink
502 $rulefilelink =~ s/RULEFILE=$linkedrulefile//g;
504 # Add linked rule file to rulefilelink
505 $rulefilelink .= "&RULEFILE=$linkedrulefile";
511 # Strip out extra & & ? from rulefilelink
512 $rulefilelink =~ s/^\?\&/\?/i;
514 # Check for a single '?' and replace with page for proper link display
515 if ($rulefilelink eq '?') {
516 $rulefilelink = "ids.cgi";
519 # Output rule file name and checkbox
520 print "<TR><TD CLASS='base' VALIGN='TOP'><INPUT TYPE='checkbox' NAME='SNORT_RULE_$rulefile' $rulechecked> <A HREF='$rulefilelink'>$rulefile</A></TD></TR>";
521 print "<TR><TD CLASS='base' VALIGN='TOP'>";
523 # Check for empty 'Description'
524 if ($snortrules{$rulefile}{'Description'} eq '') {
525 print "<TABLE WIDTH='100%'><TR><TD CLASS='base'>No description available</TD></TR>";
527 # Output rule file 'Description'
528 print "<TABLE WIDTH='100%'><TR><TD CLASS='base'>$snortrules{$rulefile}{'Description'}</TD></TR>";
531 # Check for display flag
532 if ($displayrulefilerules) {
533 # Rule file definition rule display
534 print "<TR><TD CLASS='base' VALIGN='TOP'><TABLE border=1><TR>";
537 my $ruledefdisplaycnt = 0;
538 my $ruledefcnt = keys %{$snortrules{$rulefile}{"Definition"}};
540 $ruledefcnt = $ruledefcnt / 2;
542 # Loop over rule file rules
543 foreach my $ruledef (sort {$a <=> $b} keys(%{$snortrules{$rulefile}{"Definition"}})) {
545 my $ruledefchecked = '';
547 # If have display 2 rules, start new row
548 if (($ruledefdisplaycnt % 2) == 0) {
550 $ruledefdisplaycnt = 0;
553 # Check for rules state
554 if ($snortrules{$rulefile}{'Definition'}{$ruledef}{'State'} eq 'Enabled') {
555 $ruledefchecked = 'CHECKED';
558 # Create rule file rule's checkbox
559 $checkboxname = "SNORT_RULE_$rulefile";
560 $checkboxname .= "_$ruledef";
561 print "<TD CLASS='base'><INPUT TYPE='checkbox' NAME='$checkboxname' $ruledefchecked> $snortrules{$rulefile}{'Definition'}{$ruledef}{'Description'}</TD>";
564 $ruledefdisplaycnt++;
567 # If do not have second rule for row, create empty cell
568 if (($ruledefdisplaycnt % 2) != 0) {
569 print "<TD CLASS='base'></TD>";
572 # Close display table
573 print "</TR></TABLE></TD></TR>";
576 # Close display table
579 # Increment ruledisplaycnt
583 print "</TD></TR></TABLE></TD></TR></TABLE>";
587 <td width='33%'> </td>
588 <td width='33%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'update'}' /></td>
590 <!-- space for future online help link -->
599 ####################### End added for snort rules control #################################
600 &Header
::closebigbox
();
601 &Header
::closepage
();
604 # Retrieve MD5 sum from $url.md5 file
606 my $md5buf = &geturl
("$url.md5");
607 return undef unless $md5buf;
609 if (0) { # 1 to debug
612 ($fh, $filename) = tempfile
('/tmp/XXXXXXXX',SUFFIX
=> '.md5' );
614 syswrite ($fh, $md5buf->content);
617 return $md5buf->content;
619 sub downloadrulesfile
{
620 my $return = &geturl
($url);
621 return undef unless $return;
623 if (index($return->content, "\037\213") == -1 ) { # \037\213 is .gz beginning
624 $errormessage = $Lang::tr
{'invalid loaded file'};
630 ($fh, $filename) = tempfile
('/tmp/XXXXXXXX',SUFFIX
=> '.tar.gz' );#oinkmaster work only with this extension
632 syswrite ($fh, $return->content);
640 unless (-e
"${General::swroot}/red/active") {
641 $errormessage = $Lang::tr
{'could not download latest updates'};
645 my $downloader = LWP
::UserAgent
->new;
646 $downloader->timeout(5);
648 my %proxysettings=();
649 &General
::readhash
("${General::swroot}/proxy/settings", \
%proxysettings);
651 if ($_=$proxysettings{'UPSTREAM_PROXY'}) {
652 my ($peer, $peerport) = (/^(?:[a-zA-Z ]+\:\/\
/)?(?:[A-Za-z0-9\_\.\-]*?(?:\:[A-Za-z0-9\_\.\-]*?)?\@)?([a-zA-Z0-9\.\_\-]*?)(?:\:([0-9]{1,5}))?(?:\/.*?
)?
$/);
653 if ($proxysettings{'UPSTREAM_USER'}) {
654 $downloader->proxy("http","http://$proxysettings{'UPSTREAM_USER'}:$proxysettings{'UPSTREAM_PASSWORD'}@"."$peer:$peerport/");
656 $downloader->proxy("http","http://$peer:$peerport/");
660 my $return = $downloader->get($url,'Cache-Control','no-cache');
662 if ($return->code == 403) {
663 $errormessage = $Lang::tr
{'access refused with this oinkcode'};
665 } elsif (!$return->is_success()) {
666 $errormessage = $Lang::tr
{'could not download latest updates'};