[people/pmueller/ipfire-2.x.git] / html / cgi-bin / vulnerabilities.cgi

#!/usr/bin/perl
###############################################################################
#                                                                             #
# IPFire.org - A linux based firewall                                         #
# Copyright (C) 2007-2020  IPFire Team  <info@ipfire.org>                     #
#                                                                             #
# This program is free software: you can redistribute it and/or modify        #
# it under the terms of the GNU General Public License as published by        #
# the Free Software Foundation, either version 3 of the License, or           #
# (at your option) any later version.                                         #
#                                                                             #
# This program is distributed in the hope that it will be useful,             #
# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
# GNU General Public License for more details.                                #
#                                                                             #
# You should have received a copy of the GNU General Public License           #
# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
#                                                                             #
###############################################################################

use strict;

# enable only the following on debugging purpose
#use warnings;
#use CGI::Carp 'fatalsToBrowser';

require '/var/ipfire/general-functions.pl';
require "${General::swroot}/lang.pl";
require "${General::swroot}/header.pl";

my %VULNERABILITIES = (
	"itlb_multihit" => "$Lang::tr{'itlb multihit'} (CVE-2018-12207)",
	"l1tf" => "$Lang::tr{'foreshadow'} (CVE-2018-3620)",
	"mds" => "$Lang::tr{'fallout zombieload ridl'} (CVE-2018-12126, CVE-2018-12130, CVE-2018-12127, CVE-2019-11091)",
	"meltdown" => "$Lang::tr{'meltdown'} (CVE-2017-5754)",
	"spec_store_bypass" => "$Lang::tr{'spectre variant 4'} (CVE-2018-3639)",
	"spectre_v1" => "$Lang::tr{'spectre variant 1'} (CVE-2017-5753)",
	"spectre_v2" => "$Lang::tr{'spectre variant 2'} (CVE-2017-5715)",
	"srbds" => "$Lang::tr{'srbds'} (CVE-2020-0543)",
	"tsx_async_abort" => "$Lang::tr{'taa zombieload2'} (CVE-2019-11135)",
);

my $errormessage = "";
my $notice = "";

my %mainsettings = ();
my %color = ();
&General::readhash("${General::swroot}/main/settings", \%mainsettings);
&General::readhash("/srv/web/ipfire/html/themes/ipfire/include/colors.txt", \%color);

my %settings = (
	"ENABLE_SMT" => "auto",
);
&General::readhash("${General::swroot}/main/security", \%settings);

&Header::showhttpheaders();

&Header::getcgihash(\%settings);

if ($settings{'ACTION'} eq $Lang::tr{'save'}) {
	if ($settings{'ENABLE_SMT'} !~ /^(auto|on)$/) {
		$errormessage = $Lang::tr{'invalid input'};
	}

	unless ($errormessage) {
		&General::writehash("${General::swroot}/main/security", \%settings);
		$notice = $Lang::tr{'please reboot to apply your changes'};
	}
}

my %checked = ();
$checked{'ENABLE_SMT'}{'auto'} = '';
$checked{'ENABLE_SMT'}{'on'} = '';
$checked{'ENABLE_SMT'}{$settings{'ENABLE_SMT'}} = "checked";

&Header::openpage($Lang::tr{'processor vulnerability mitigations'}, 1, '');

&Header::openbigbox("100%", "left", "", $errormessage);

if ($errormessage) {
	&Header::openbox('100%', 'left', $Lang::tr{'error messages'});
	print "<font color='red'>$errormessage</font>";
	&Header::closebox();
}

if ($notice) {
	&Header::openbox('100%', 'left', $Lang::tr{'notice'});
	print "<font color='red'>$notice</font>";
	&Header::closebox();
}

&Header::openbox('100%', 'center', $Lang::tr{'processor vulnerability mitigations'});

print <<END;
	<table class="tbl" width='100%'>
		<thead>
			<tr>
				<th align="center">
					<strong>$Lang::tr{'vulnerability'}</strong>
				</th>
				<th align="center">
					<strong>$Lang::tr{'status'}</strong>
				</th>
			</tr>
		</thead>
		<tbody>
END

my $id = 0;
for my $vuln (sort keys %VULNERABILITIES) {
	my ($status, $message) = &check_status($vuln);
	next if (!$status);

	my $colour = "";
	my $bgcolour = "";
	my $status_message = "";

	# Not affected
	if ($status eq "Not affected") {
		$status_message = $Lang::tr{'not affected'};
		$colour = "white";
		$bgcolour = ${Header::colourgreen};

	# Vulnerable
	} elsif ($status eq "Vulnerable") {
		$status_message = $Lang::tr{'vulnerable'};
		$colour = "white";
		$bgcolour = ${Header::colourred};

	# Mitigated
	} elsif ($status eq "Mitigation") {
		$status_message = $Lang::tr{'mitigated'};
		$colour = "white";
		$bgcolour = ${Header::colourblue};

	# Unknown report from kernel
	} else {
		$status_message = $status;
		$colour = "black";
		$bgcolour = ${Header::colouryellow};
	}

	my $table_colour = ($id++ % 2) ? $color{'color22'} : $color{'color20'};

	print <<END;
		<tr bgcolor="$table_colour">
			<td align="left">
				<strong>$VULNERABILITIES{$vuln}</strong>
			</td>

			<td bgcolor="$bgcolour" align="center">
				<font color="$colour">
END
	if ($message) {
		print "<strong>$status_message</strong> - $message";
	} else {
		print "<strong>$status_message</strong>";
	}

	print <<END;
				</font>
			</td>
		</tr>
END
	}

print <<END;
		</tbody>
	</table>
END

&Header::closebox();

print "<form method='post' action='$ENV{'SCRIPT_NAME'}'>\n";

&Header::openbox('100%', 'center', $Lang::tr{'settings'});

my $smt_status = &smt_status();

print <<END;
	<table class="tbl" width="66%">
		<tbody>
			<tr>
				<th colspan="2" align="center">
					<strong>$smt_status</strong>
				</th>
			</tr>

			<tr>
				<td width="50%" align="left">
					$Lang::tr{'enable smt'}
				</td>

				<td width="50%" align="center">
					<label>
						<input type="radio" name="ENABLE_SMT"
							value="auto" $checked{'ENABLE_SMT'}{'auto'}>
						$Lang::tr{'automatic'}
					</label> /
					<label>
						<input type="radio" name="ENABLE_SMT"
							value="on" $checked{'ENABLE_SMT'}{'on'}>
						$Lang::tr{'force enable'} ($Lang::tr{'dangerous'})
					</label>
				</td>
			</tr>

			<tr>
				<td colspan="2" align="right">
					<input type="submit" name="ACTION" value="$Lang::tr{'save'}">
				</td>
			</tr>
		</tbody>
	</table>
END

&Header::closebox();

print "</form>\n";

&Header::closebigbox();

&Header::closepage();

sub check_status($) {
	my $vuln = shift;

	open(FILE, "/sys/devices/system/cpu/vulnerabilities/$vuln") or return undef;
	my $status = <FILE>;
	close(FILE);

	chomp($status);

	# Fix status when something has been mitigated, but not fully, yet
	if ($status =~ /^(Mitigation): (.*vulnerable.*)$/) {
		return ("Vulnerable", $status);
	}

	if ($status =~ /^(Vulnerable|Mitigation): (.*)$/) {
		return ($1, $2);
	} 

	return $status;
}

sub smt_status() {
	open(FILE, "/sys/devices/system/cpu/smt/control");
	my $status = <FILE>;
	close(FILE);

	chomp($status);

	if ($status eq "on") {
		return $Lang::tr{'smt enabled'};
	} elsif (($status eq "off") || ($status eq "forceoff")) {
		return $Lang::tr{'smt disabled'};
	} elsif ($status eq "notsupported") {
		return $Lang::tr{'smt not supported'};
	}

	return $status;
}
Commit	Line	Data
65871d1a MT	1	#!/usr/bin/perl
	2	###############################################################################
	3	# #
	4	# IPFire.org - A linux based firewall #
e9c62e37	5	# Copyright (C) 2007-2020 IPFire Team <info@ipfire.org> #
65871d1a MT	6	# #
	7	# This program is free software: you can redistribute it and/or modify #
	8	# it under the terms of the GNU General Public License as published by #
	9	# the Free Software Foundation, either version 3 of the License, or #
	10	# (at your option) any later version. #
	11	# #
	12	# This program is distributed in the hope that it will be useful, #
	13	# but WITHOUT ANY WARRANTY; without even the implied warranty of #
	14	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
	15	# GNU General Public License for more details. #
	16	# #
	17	# You should have received a copy of the GNU General Public License #
	18	# along with this program. If not, see <http://www.gnu.org/licenses/>. #
	19	# #
	20	###############################################################################
	21
	22	use strict;
	23
	24	# enable only the following on debugging purpose
f238e251 MT	25	#use warnings;
f238e251 MT	26	#use CGI::Carp 'fatalsToBrowser';
65871d1a MT	27
	28	require '/var/ipfire/general-functions.pl';
	29	require "${General::swroot}/lang.pl";
	30	require "${General::swroot}/header.pl";
	31
	32	my %VULNERABILITIES = (
6fb52ca1	33	"itlb_multihit" => "$Lang::tr{'itlb multihit'} (CVE-2018-12207)",
65871d1a MT	34	"l1tf" => "$Lang::tr{'foreshadow'} (CVE-2018-3620)",
	35	"mds" => "$Lang::tr{'fallout zombieload ridl'} (CVE-2018-12126, CVE-2018-12130, CVE-2018-12127, CVE-2019-11091)",
	36	"meltdown" => "$Lang::tr{'meltdown'} (CVE-2017-5754)",
	37	"spec_store_bypass" => "$Lang::tr{'spectre variant 4'} (CVE-2018-3639)",
	38	"spectre_v1" => "$Lang::tr{'spectre variant 1'} (CVE-2017-5753)",
	39	"spectre_v2" => "$Lang::tr{'spectre variant 2'} (CVE-2017-5715)",
e9c62e37	40	"srbds" => "$Lang::tr{'srbds'} (CVE-2020-0543)",
6fb52ca1	41	"tsx_async_abort" => "$Lang::tr{'taa zombieload2'} (CVE-2019-11135)",
65871d1a MT	42	);
	43
	44	my $errormessage = "";
	45	my $notice = "";
	46
	47	my %mainsettings = ();
	48	my %color = ();
	49	&General::readhash("${General::swroot}/main/settings", \%mainsettings);
8186b372	50	&General::readhash("/srv/web/ipfire/html/themes/ipfire/include/colors.txt", \%color);
65871d1a MT	51
	52	my %settings = (
	53	"ENABLE_SMT" => "auto",
	54	);
	55	&General::readhash("${General::swroot}/main/security", \%settings);
	56
	57	&Header::showhttpheaders();
	58
	59	&Header::getcgihash(\%settings);
	60
	61	if ($settings{'ACTION'} eq $Lang::tr{'save'}) {
	62	if ($settings{'ENABLE_SMT'} !~ /^(auto\|on)$/) {
	63	$errormessage = $Lang::tr{'invalid input'};
	64	}
	65
	66	unless ($errormessage) {
	67	&General::writehash("${General::swroot}/main/security", \%settings);
	68	$notice = $Lang::tr{'please reboot to apply your changes'};
	69	}
	70	}
	71
	72	my %checked = ();
	73	$checked{'ENABLE_SMT'}{'auto'} = '';
	74	$checked{'ENABLE_SMT'}{'on'} = '';
	75	$checked{'ENABLE_SMT'}{$settings{'ENABLE_SMT'}} = "checked";
	76
	77	&Header::openpage($Lang::tr{'processor vulnerability mitigations'}, 1, '');
	78
	79	&Header::openbigbox("100%", "left", "", $errormessage);
	80
	81	if ($errormessage) {
	82	&Header::openbox('100%', 'left', $Lang::tr{'error messages'});
	83	print "<font color='red'>$errormessage</font>";
	84	&Header::closebox();
	85	}
	86
	87	if ($notice) {
	88	&Header::openbox('100%', 'left', $Lang::tr{'notice'});
	89	print "<font color='red'>$notice</font>";
	90	&Header::closebox();
	91	}
	92
	93	&Header::openbox('100%', 'center', $Lang::tr{'processor vulnerability mitigations'});
	94
	95	print <<END;
	96	<table class="tbl" width='100%'>
	97	<thead>
	98	<tr>
	99	<th align="center">
	100	<strong>$Lang::tr{'vulnerability'}</strong>
	101	</th>
	102	<th align="center">
	103	<strong>$Lang::tr{'status'}</strong>
	104	</th>
	105	</tr>
	106	</thead>
	107	<tbody>
	108	END
	109
	110	my $id = 0;
	111	for my $vuln (sort keys %VULNERABILITIES) {
	112	my ($status, $message) = &check_status($vuln);
	113	next if (!$status);
	114
115	my $colour = "";
116	my $bgcolour = "";
117	my $status_message = "";
118
119	# Not affected
120	if ($status eq "Not affected") {
121	$status_message = $Lang::tr{'not affected'};
122	$colour = "white";
29abc2d0	123	$bgcolour = ${Header::colourgreen};
65871d1a MT	124
	125	# Vulnerable
	126	} elsif ($status eq "Vulnerable") {
	127	$status_message = $Lang::tr{'vulnerable'};
	128	$colour = "white";
	129	$bgcolour = ${Header::colourred};
	130
	131	# Mitigated
	132	} elsif ($status eq "Mitigation") {
	133	$status_message = $Lang::tr{'mitigated'};
984a6cab	134	$colour = "white";
29abc2d0	135	$bgcolour = ${Header::colourblue};
65871d1a	136
984a6cab	137	# Unknown report from kernel
65871d1a	138	} else {
b23db9b9	139	$status_message = $status;
984a6cab AF	140	$colour = "black";
984a6cab AF	141	$bgcolour = ${Header::colouryellow};
65871d1a MT	142	}
	143
	144	my $table_colour = ($id++ % 2) ? $color{'color22'} : $color{'color20'};
	145
	146	print <<END;
	147	<tr bgcolor="$table_colour">
	148	<td align="left">
	149	<strong>$VULNERABILITIES{$vuln}</strong>
	150	</td>
	151
	152	<td bgcolor="$bgcolour" align="center">
	153	<font color="$colour">
	154	END
	155	if ($message) {
e896a9bd	156	print "<strong>$status_message</strong> - $message";
65871d1a MT	157	} else {
	158	print "<strong>$status_message</strong>";
	159	}
	160
	161	print <<END;
	162	</font>
	163	</td>
	164	</tr>
	165	END
	166	}
	167
	168	print <<END;
	169	</tbody>
	170	</table>
	171	END
	172
	173	&Header::closebox();
	174
	175	print "<form method='post' action='$ENV{'SCRIPT_NAME'}'>\n";
	176
	177	&Header::openbox('100%', 'center', $Lang::tr{'settings'});
	178
1cbcd044 MT	179	my $smt_status = &smt_status();
1cbcd044 MT	180
65871d1a MT	181	print <<END;
	182	<table class="tbl" width="66%">
	183	<tbody>
1cbcd044 MT	184	<tr>
	185	<th colspan="2" align="center">
	186	<strong>$smt_status</strong>
	187	</th>
	188	</tr>
	189
65871d1a MT	190	<tr>
65871d1a MT	191	<td width="50%" align="left">
1cbcd044	192	$Lang::tr{'enable smt'}
65871d1a MT	193	</td>
	194
	195	<td width="50%" align="center">
	196	<label>
	197	<input type="radio" name="ENABLE_SMT"
	198	value="auto" $checked{'ENABLE_SMT'}{'auto'}>
	199	$Lang::tr{'automatic'}
	200	</label> /
	201	<label>
	202	<input type="radio" name="ENABLE_SMT"
	203	value="on" $checked{'ENABLE_SMT'}{'on'}>
	204	$Lang::tr{'force enable'} ($Lang::tr{'dangerous'})
	205	</label>
	206	</td>
	207	</tr>
	208
	209	<tr>
	210	<td colspan="2" align="right">
	211	<input type="submit" name="ACTION" value="$Lang::tr{'save'}">
	212	</td>
	213	</tr>
	214	</tbody>
	215	</table>
	216	END
	217
	218	&Header::closebox();
	219
	220	print "</form>\n";
	221
	222	&Header::closebigbox();
	223
	224	&Header::closepage();
	225
	226	sub check_status($) {
	227	my $vuln = shift;
	228
	229	open(FILE, "/sys/devices/system/cpu/vulnerabilities/$vuln") or return undef;
	230	my $status = <FILE>;
	231	close(FILE);
	232
e896a9bd AF	233	chomp($status);
e896a9bd AF	234
413f84e9	235	# Fix status when something has been mitigated, but not fully, yet
b23db9b9	236	if ($status =~ /^(Mitigation): (.vulnerable.)$/) {
e896a9bd	237	return ("Vulnerable", $status);
b23db9b9 AF	238	}
b23db9b9 AF	239
a96bcf41	240	if ($status =~ /^(Vulnerable\|Mitigation): (.*)$/) {
65871d1a MT	241	return ($1, $2);
	242	}
	243
	244	return $status;
	245	}
1cbcd044 MT	246
	247	sub smt_status() {
	248	open(FILE, "/sys/devices/system/cpu/smt/control");
	249	my $status = <FILE>;
	250	close(FILE);
	251
	252	chomp($status);
	253
	254	if ($status eq "on") {
	255	return $Lang::tr{'smt enabled'};
	256	} elsif (($status eq "off") \|\| ($status eq "forceoff")) {
	257	return $Lang::tr{'smt disabled'};
	258	} elsif ($status eq "notsupported") {
	259	return $Lang::tr{'smt not supported'};
	260	}
	261
	262	return $status;
	263	}