# the list of zones in an array.
my @network_zones = &IDS::get_available_network_zones();
-# File where the used rulefiles are stored.
-my $idsusedrulefilesfile = "$IDS::settingsdir/suricata-used-rulefiles.yaml";
-
-# File where the addresses of the homenet are stored.
-my $idshomenetfile = "$IDS::settingsdir/suricata-homenet.yaml";
-
-# File which contains the enabled sids.
-my $enabled_sids_file = "$IDS::settingsdir/oinkmaster-enabled-sids.conf";
-
-# File which contains the disabled sids.
-my $disabled_sids_file = "$IDS::settingsdir/oinkmaster-disabled-sids.conf";
-
-# File which contains wheater the rules should be changed.
-my $modify_sids_file = "$IDS::settingsdir/oinkmaster-modify-sids.conf";
-
-# File which stores the configured IPS settings.
-my $idssettingsfile = "$IDS::settingsdir/settings";
-
-# File which stores the configured rules-settings.
-my $rulessettingsfile = "$IDS::settingsdir/rules-settings";
-
-# File which stores the configured settings for whitelisted addresses.
-my $ignoredfile = "$IDS::settingsdir/ignored";
-
-# File which contains the rules to whitelist addresses on suricata.
-my $whitelistfile = "$IDS::rulespath/whitelist.rules";
-
my $errormessage;
# Create files if they does not exist yet.
-unless (-f "$enabled_sids_file") { &IDS::create_empty_file($enabled_sids_file); }
-unless (-f "$disabled_sids_file") { &IDS::create_empty_file($disabled_sids_file); }
-unless (-f "$modify_sids_file") { &IDS::create_empty_file($modify_sids_file); }
-unless (-f "$idsusedrulefilesfile") { &IDS::create_empty_file($idsusedrulefilesfile); }
-unless (-f "$idssettingsfile") { &IDS::create_empty_file($idssettingsfile); }
-unless (-f "$rulessettingsfile") { &IDS::create_empty_file($rulessettingsfile); }
-unless (-f "$ignoredfile") { &IDS::create_empty_file($ignoredfile); }
-unless (-f "$whitelistfile" ) { &IDS::create_empty_file($whitelistfile); }
+&IDS::check_and_create_filelayout();
# Hash which contains the colour code of a network zone.
my %colourhash = (
my $new_entry_remark = $cgiparams{'IGNORE_ENTRY_REMARK'};
# Read-in ignoredfile.
- &General::readhasharray($ignoredfile, \%ignored);
+ &General::readhasharray($IDS::ignored_file, \%ignored);
# Check if we should edit an existing entry and got an ID.
if (($cgiparams{'WHITELIST'} eq $Lang::tr{'update'}) && ($cgiparams{'ID'})) {
$ignored{$id} = ["$new_entry_address", "$new_entry_remark", "$status"];
# Write the changed ignored hash to the ignored file.
- &General::writehasharray($ignoredfile, \%ignored);
+ &General::writehasharray($IDS::ignored_file, \%ignored);
# Regenerate the ignore file.
- &GenerateIgnoreFile();
+ &IDS::generate_ignore_file();
}
# Check if the IDS is running.
undef($cgiparams{'ID'});
# Read-in ignoredfile.
- &General::readhasharray($ignoredfile, \%ignored);
+ &General::readhasharray($IDS::ignored_file, \%ignored);
# Grab the configured status of the corresponding entry.
my $status = $ignored{$id}[2];
$ignored{$id} = ["$ignored{$id}[0]", "$ignored{$id}[1]", "$status"];
# Write the changed ignored hash to the ignored file.
- &General::writehasharray($ignoredfile, \%ignored);
+ &General::writehasharray($IDS::ignored_file, \%ignored);
# Regenerate the ignore file.
- &GenerateIgnoreFile();
+ &IDS::generate_ignore_file();
# Check if the IDS is running.
if(&IDS::ids_is_running()) {
my %ignored = ();
# Read-in ignoredfile.
- &General::readhasharray($ignoredfile, \%ignored);
+ &General::readhasharray($IDS::ignored_file, \%ignored);
# Drop entry from the hash.
delete($ignored{$cgiparams{'ID'}});
undef($cgiparams{'ID'});
# Write the changed ignored hash to the ignored file.
- &General::writehasharray($ignoredfile, \%ignored);
+ &General::writehasharray($IDS::ignored_file, \%ignored);
# Regenerate the ignore file.
- &GenerateIgnoreFile();
+ &IDS::generate_ignore_file();
# Check if the IDS is running.
if(&IDS::ids_is_running()) {
unlink($IDS::storederrorfile);
}
-
## Grab all available snort rules and store them in the idsrules hash.
#
# Open snort rules directory and do a directory listing.
# Gather used rulefiles.
#
# Check if the file for activated rulefiles is not empty.
-if(-f $idsusedrulefilesfile) {
+if(-f $IDS::used_rulefiles_file) {
# Open the file for used rulefile and read-in content.
- open(FILE, $idsusedrulefilesfile) or die "Could not open $idsusedrulefilesfile. $!\n";
+ open(FILE, $IDS::used_rulefiles_file) or die "Could not open $IDS::used_rulefiles_file. $!\n";
# Read-in content.
my @lines = <FILE>;
my %oldsettings;
# Read-in current (old) IDS settings.
- &General::readhash("$rulessettingsfile", \%oldsettings);
+ &General::readhash("$IDS::rules_settings_file", \%oldsettings);
# Prevent form name from been stored in conf file.
delete $cgiparams{'RULESET'};
# Go on if there are no error messages.
if (!$errormessage) {
# Store settings into settings file.
- &General::writehash("$rulessettingsfile", \%cgiparams);
+ &General::writehash("$IDS::rules_settings_file", \%cgiparams);
}
# Check if the the automatic rule update hass been touched.
&IDS::call_suricatactrl("cron", $cgiparams{'AUTOUPDATE_INTERVAL'});
}
+ # Check if a ruleset is present - if not download it.
+ unless (%idsrules) {
+ # Check if the red device is active.
+ unless (-e "${General::swroot}/red/active") {
+ $errormessage = "$Lang::tr{'could not download latest updates'} - $Lang::tr{'system is offline'}";
+ }
+
+ # Check if enought free disk space is availabe.
+ if(&IDS::checkdiskspace()) {
+ $errormessage = "$Lang::tr{'not enough disk space'}";
+ }
+
+ # Check if any errors happend.
+ unless ($errormessage) {
+ # Lock the webpage and print notice about downloading
+ # a new ruleset.
+ &working_notice("$Lang::tr{'snort working'}");
+
+ # Call subfunction to download the ruleset.
+ if(&IDS::downloadruleset()) {
+ $errormessage = $Lang::tr{'could not download latest updates'};
+
+ # Call function to store the errormessage.
+ &IDS::_store_error_message($errormessage);
+ } else {
+ # Call subfunction to launch oinkmaster.
+ &IDS::oinkmaster();
+ }
+
+ # Perform a reload of the page.
+ &reload();
+ }
+ }
+
# Save ruleset.
} elsif ($cgiparams{'RULESET'} eq $Lang::tr{'update'}) {
# Arrays to store which rulefiles have been enabled and will be used.
# This will be done by calling the read_enabled_disabled_sids_file function two times
# and merge the returned hashes together into the enabled_disabled_sids hash.
%enabled_disabled_sids = (
- &read_enabled_disabled_sids_file($disabled_sids_file),
- &read_enabled_disabled_sids_file($enabled_sids_file));
+ &read_enabled_disabled_sids_file($IDS::disabled_sids_file),
+ &read_enabled_disabled_sids_file($IDS::enabled_sids_file));
# Loop through the hash of idsrules.
foreach my $rulefile (keys %idsrules) {
}
# Open enabled sid's file for writing.
- open(ENABLED_FILE, ">$enabled_sids_file") or die "Could not write to $enabled_sids_file. $!\n";
+ open(ENABLED_FILE, ">$IDS::enabled_sids_file") or die "Could not write to $IDS::enabled_sids_file. $!\n";
# Open disabled sid's file for writing.
- open(DISABLED_FILE, ">$disabled_sids_file") or die "Could not write to $disabled_sids_file. $!\n";
+ open(DISABLED_FILE, ">$IDS::disabled_sids_file") or die "Could not write to $IDS::disabled_sids_file. $!\n";
# Write header to the files.
print ENABLED_FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
# Close file for disabled_sids after writing.
close(DISABLED_FILE);
- # Open file for used rulefiles.
- open (FILE, ">$idsusedrulefilesfile") or die "Could not write to $idsusedrulefilesfile. $!\n";
-
- # Write yaml header to the file.
- print FILE "%YAML 1.1\n";
- print FILE "---\n\n";
-
- # Write header to file.
- print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
-
- # Allways load the whitelist.
- print FILE " - whitelist.rules\n";
-
- # Check if the enabled_rulefiles array contains any entries.
- if (@enabled_rulefiles) {
- # Loop through the array of rulefiles which should be loaded and write them to the file.
- foreach my $file (@enabled_rulefiles) {
- print FILE " - $file\n";
- }
- }
-
- # Close file after writing.
- close(FILE);
+ # Call function to generate and write the used rulefiles file.
+ &IDS::write_used_rulefiles_file(@enabled_rulefiles);
# Lock the webpage and print message.
&working_notice("$Lang::tr{'snort working'}");
&reload();
# Download new ruleset.
-} elsif ($cgiparams{'RULESET'} eq $Lang::tr{'download new ruleset'}) {
+} elsif ($cgiparams{'RULESET'} eq $Lang::tr{'update ruleset'}) {
# Check if the red device is active.
unless (-e "${General::swroot}/red/active") {
- $errormessage = $Lang::tr{'could not download latest updates'};
+ $errormessage = "$Lang::tr{'could not download latest updates'} - $Lang::tr{'system is offline'}";
}
# Check if enought free disk space is availabe.
my $monitored_zones = 0;
# Read-in current (old) IDS settings.
- &General::readhash("$idssettingsfile", \%oldidssettings);
+ &General::readhash("$IDS::ids_settings_file", \%oldidssettings);
# Prevent form name from been stored in conf file.
delete $cgiparams{'IDS'};
# Go on if there are no error messages.
if (!$errormessage) {
# Store settings into settings file.
- &General::writehash("$idssettingsfile", \%cgiparams);
+ &General::writehash("$IDS::ids_settings_file", \%cgiparams);
}
# Generate file to store the home net.
- &generate_home_net_file();
-
- # Open modify sid's file for writing.
- open(FILE, ">$modify_sids_file") or die "Could not write to $modify_sids_file. $!\n";
+ &IDS::generate_home_net_file();
- # Write file header.
- print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
+ # Temporary variable to set the ruleaction.
+ # Default is "drop" to use suricata as IPS.
+ my $ruleaction="drop";
# Check if the traffic only should be monitored.
- unless($cgiparams{'MONITOR_TRAFFIC_ONLY'} eq 'on') {
- # Tell oinkmaster to switch all rules from alert to drop.
- print FILE "modifysid \* \"alert\" \| \"drop\"\n";
+ if($cgiparams{'MONITOR_TRAFFIC_ONLY'} eq 'on') {
+ # Switch the ruleaction to "alert".
+ # Suricata acts as an IDS only.
+ $ruleaction="alert";
}
- # Close file handle.
- close(FILE);
+ # Write the modify sid's file and pass the taken ruleaction.
+ &IDS::write_modify_sids_file($ruleaction);
# Check if "MONITOR_TRAFFIC_ONLY" has been changed.
if($cgiparams{'MONITOR_TRAFFIC_ONLY'} ne $oldidssettings{'MONITOR_TRAFFIC_ONLY'}) {
}
# Read-in idssettings and rulesetsettings
-&General::readhash("$idssettingsfile", \%idssettings);
-&General::readhash("$rulessettingsfile", \%rulessettings);
+&General::readhash("$IDS::ids_settings_file", \%idssettings);
+&General::readhash("$IDS::rules_settings_file", \%rulessettings);
# If no autoupdate intervall has been configured yet, set default value.
unless(exists($rulessettings{'AUTOUPDATE_INTERVAL'})) {
### Java Script ###
print <<END
<script>
+ // JQuery function to show/hide the text input field for
+ // Oinkcode/Subscription code.
+ \$(function() {
+ \$('#RULES').change(function(){
+ if(\$('#RULES').val() == 'registered') {
+ \$('#code').show();
+ } else if(\$('#RULES').val() == 'subscripted') {
+ \$('#code').show();
+ } else if(\$('#RULES').val() == 'emerging_pro') {
+ \$('#code').show();
+ } else {
+ \$('#code').hide();
+ }
+ });
+ });
+
// Tiny java script function to show/hide the rules
// of a given category.
function showhide(tblname) {
</table>
END
}
-&Header::closebox();
my $rulesdate;
$rulesdate = localtime($Info[9]);
}
-# Draw elements for IDS configuration.
-&Header::openbox('100%', 'center', $Lang::tr{'settings'});
+# Only show this area, if a ruleset is present.
+if (%idsrules) {
+
+ print <<END
-print <<END
-<form method='post' action='$ENV{'SCRIPT_NAME'}'>
- <table width='100%' border='0'>
- <tr>
- <td class='base' colspan='2'>
- <input type='checkbox' name='ENABLE_IDS' $checked{'ENABLE_IDS'}{'on'}>$Lang::tr{'ids activate'} $Lang::tr{'intrusion detection system'}
- </td>
+ <br><br><h2>$Lang::tr{'settings'}</h2>
+
+ <form method='post' action='$ENV{'SCRIPT_NAME'}'>
+ <table width='100%' border='0'>
+ <tr>
+ <td class='base' colspan='2'>
+ <input type='checkbox' name='ENABLE_IDS' $checked{'ENABLE_IDS'}{'on'}>$Lang::tr{'ids activate'} $Lang::tr{'intrusion detection system'}
+ </td>
- <td class='base' colspan='2'>
- <input type='checkbox' name='MONITOR_TRAFFIC_ONLY' $checked{'MONITOR_TRAFFIC_ONLY'}{'on'}>$Lang::tr{'ids monitor traffic only'}
+ <td class='base' colspan='2'>
+ <input type='checkbox' name='MONITOR_TRAFFIC_ONLY' $checked{'MONITOR_TRAFFIC_ONLY'}{'on'}>$Lang::tr{'ids monitor traffic only'}
</td>
- </tr>
+ </tr>
- <tr>
- <td><br><br></td>
- <td><br><br></td>
- <td><br><br></td>
- <td><br><br></td>
- </tr>
+ <tr>
+ <td><br><br></td>
+ <td><br><br></td>
+ <td><br><br></td>
+ <td><br><br></td>
+ </tr>
- <tr>
- <td colspan='4'><b>$Lang::tr{'ids monitored interfaces'}</b><br></td>
- </tr>
+ <tr>
+ <td colspan='4'><b>$Lang::tr{'ids monitored interfaces'}</b><br></td>
+ </tr>
- <tr>
+ <tr>
END
;
-# Loop through the array of available networks and print config options.
-foreach my $zone (@network_zones) {
- my $checked_input;
- my $checked_forward;
+ # Loop through the array of available networks and print config options.
+ foreach my $zone (@network_zones) {
+ my $checked_input;
+ my $checked_forward;
- # Convert current zone name to upper case.
- my $zone_upper = uc($zone);
+ # Convert current zone name to upper case.
+ my $zone_upper = uc($zone);
- # Grab checkbox status from settings hash.
- if ($idssettings{"ENABLE_IDS_$zone_upper"} eq "on") {
- $checked_input = "checked = 'checked'";
- }
+ # Set zone name.
+ my $zone_name = $zone;
- print "<td class='base' width='25%'>\n";
- print "<input type='checkbox' name='ENABLE_IDS_$zone_upper' $checked_input>\n";
- print " $Lang::tr{'enabled on'}<font color='$colourhash{$zone}'> $Lang::tr{$zone}</font>\n";
- print "</td>\n";
-}
+ # Dirty hack to get the correct language string for the red zone.
+ if ($zone eq "red") {
+ $zone_name = "red1";
+ }
+
+ # Grab checkbox status from settings hash.
+ if ($idssettings{"ENABLE_IDS_$zone_upper"} eq "on") {
+ $checked_input = "checked = 'checked'";
+ }
+
+ print "<td class='base' width='25%'>\n";
+ print "<input type='checkbox' name='ENABLE_IDS_$zone_upper' $checked_input>\n";
+ print " $Lang::tr{'enabled on'}<font color='$colourhash{$zone}'> $Lang::tr{$zone_name}</font>\n";
+ print "</td>\n";
+ }
print <<END
- </tr>
- </table>
+ </tr>
+ </table>
- <br><br>
+ <br><br>
- <table width='100%'>
- <tr>
- <td align='right'><input type='submit' name='IDS' value='$Lang::tr{'save'}' /></td>
- </tr>
- </table>
-</form>
+ <table width='100%'>
+ <tr>
+ <td align='right'><input type='submit' name='IDS' value='$Lang::tr{'save'}' /></td>
+ </tr>
+ </table>
+ </form>
END
;
+}
+
&Header::closebox();
# Draw elements for ruleset configuration.
</tr>
<tr>
- <td><select name='RULES'>
+ <td><select name='RULES' id='RULES'>
<option value='emerging' $selected{'RULES'}{'emerging'} >$Lang::tr{'emerging rules'}</option>
+ <option value='emerging_pro' $selected{'RULES'}{'emerging_pro'} >$Lang::tr{'emerging pro rules'}</option>
<option value='community' $selected{'RULES'}{'community'} >$Lang::tr{'community rules'}</option>
<option value='registered' $selected{'RULES'}{'registered'} >$Lang::tr{'registered user rules'}</option>
<option value='subscripted' $selected{'RULES'}{'subscripted'} >$Lang::tr{'subscripted user rules'}</option>
</tr>
<tr>
- <td colspan='2'>
- <br>$Lang::tr{'ids rules license'} <a href='https://www.snort.org/subscribe' target='_blank'>www.snort.org</a>$Lang::tr{'ids rules license1'}</br>
- <br>$Lang::tr{'ids rules license2'} <a href='https://www.snort.org/account/oinkcode' target='_blank'>Get an Oinkcode</a>, $Lang::tr{'ids rules license3'}</br>
- </td>
+ <td colspan='2'><br><br></td>
</tr>
- <tr>
- <td colspan='2' nowrap='nowrap'>Oinkcode: <input type='text' size='40' name='OINKCODE' value='$rulessettings{'OINKCODE'}'></td>
+ <tr style='display:none' id='code'>
+ <td colspan='2'>Oinkcode: <input type='text' size='40' name='OINKCODE' value='$rulessettings{'OINKCODE'}'></td>
</tr>
<tr>
<td align='right'>
END
;
- # Check if a ruleset source has been configured yet.
- unless($rulessettings{'RULES'}) {
- # If no ruleset settings have been saved yet, disable the button to download / update the ruleset.
- print"<input type='submit' name='RULESET' disabled='disabled' value='$Lang::tr{'download new ruleset'}'>\n";
- } else {
- # Ruleset setting have been saved. - Check if a ruleset already is downloaded.
+ # Check if a ruleset has been downloaded yet.
if (%idsrules) {
- # Allow to press the button and show it as "update ruleset".
+ # Display button to update the ruleset.
print"<input type='submit' name='RULESET' value='$Lang::tr{'update ruleset'}'>\n";
- } else {
- # Also allow to press the button, but show it as "download new ruleset".
- print"<input type='submit' name='RULESET' value='$Lang::tr{'download new ruleset'}'>\n";
- }
}
print <<END;
<input type='submit' name='RULESET' value='$Lang::tr{'save'}'>
return;
}
-#
-## Function to generate the file which contains the home net information.
-#
-sub generate_home_net_file() {
- my %netsettings;
-
- # Read-in network settings.
- &General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
-
- # Get available network zones.
- my @network_zones = &IDS::get_available_network_zones();
-
- # Temporary array to store network address and prefix of the configured
- # networks.
- my @networks;
-
- # Loop through the array of available network zones.
- foreach my $zone (@network_zones) {
- # Skip the red network - It never can be part to the home_net!
- next if($zone eq "red");
-
- # Convert current zone name into upper case.
- $zone = uc($zone);
-
- # Generate key to access the required data from the netsettings hash.
- my $zone_netaddress = $zone . "_NETADDRESS";
- my $zone_netmask = $zone . "_NETMASK";
-
- # Obtain the settings from the netsettings hash.
- my $netaddress = $netsettings{$zone_netaddress};
- my $netmask = $netsettings{$zone_netmask};
-
- # Convert the subnetmask into prefix notation.
- my $prefix = &Network::convert_netmask2prefix($netmask);
-
- # Generate full network string.
- my $network = join("/", $netaddress,$prefix);
-
- # Check if the network is valid.
- if(&Network::check_subnet($network)) {
- # Add the generated network to the array of networks.
- push(@networks, $network);
- }
- }
-
- # Format home net declaration.
- my $line = "\"\[";
-
- # Loop through the array of networks.
- foreach my $network (@networks) {
- # Add the network to the line.
- $line = "$line" . "$network";
-
- # Check if the current network was the last in the array.
- if ($network eq $networks[-1]) {
- # Close the line.
- $line = "$line" . "\]\"";
- } else {
- # Add "," for the next network.
- $line = "$line" . "\,";
- }
- }
-
- # Open file to store the addresses of the home net.
- open(FILE, ">$idshomenetfile") or die "Could not open $idshomenetfile. $!\n";
-
- # Print yaml header.
- print FILE "%YAML 1.1\n";
- print FILE "---\n\n";
-
- # Print notice about autogenerated file.
- print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
-
- # Print the generated and required HOME_NET declaration to the file.
- print FILE "HOME_NET:\t$line\n";
-
- # Close file handle.
- close(FILE);
-
-}
-
-#
-## Function to generate the rules file with whitelisted addresses.
-#
-sub GenerateIgnoreFile() {
- my %ignored = ();
-
- # SID range 1000000-1999999 Reserved for Local Use
- # Put your custom rules in this range to avoid conflicts
- my $sid = 1500000;
-
- # Read-in ignoredfile.
- &General::readhasharray($ignoredfile, \%ignored);
-
- # Open ignorefile for writing.
- open(FILE, ">$whitelistfile") or die "Could not write to $whitelistfile. $!\n";
-
- # Config file header.
- print FILE "# Autogenerated file.\n";
- print FILE "# All user modifications will be overwritten.\n\n";
-
- # Add all user defined addresses to the whitelist.
- #
- # Check if the hash contains any elements.
- if (keys (%ignored)) {
- # Loop through the entire hash and write the host/network
- # and remark to the ignore file.
- while ( (my $key) = each %ignored) {
- my $address = $ignored{$key}[0];
- my $remark = $ignored{$key}[1];
- my $status = $ignored{$key}[2];
-
- # Check if the status of the entry is "enabled".
- if ($status eq "enabled") {
- # Check if the address/network is valid.
- if ((&General::validip($address)) || (&General::validipandmask($address))) {
- # Write rule line to the file to pass any traffic from this IP
- print FILE "pass ip $address any -> any any (msg:\"pass all traffic from/to $address\"\; sid:$sid\;)\n";
-
- # Increment sid.
- $sid++;
- }
- }
- }
- }
-
- close(FILE);
-}
-
#
## Function to read-in the given enabled or disables sids file.
#