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

#!/usr/bin/perl
###############################################################################
#                                                                             #
# IPFire.org - A linux based firewall                                         #
# Copyright (C) 2007-2019  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" => "$Lang::tr{'spectre variant 2'} (CVE-2017-5715)",
	"tsx_async_abort" => "$Lang::tr{'taa zombieload2'} (CVE-2019-11135)",
);

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

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