[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 = (
	"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)",
);

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::colourblack};

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

	# Mitigated but smt is enabled
	} elsif ($status eq "Mitigation-SMT") {
		$status_message = $Lang::tr{'mitigated'};
		$colour = "black";
		$bgcolour = ${Header::colourorange};

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

	} else {
		$status_message = $status;
		$colour = "white";
		$bgcolour = ${Header::colourblue};
	}

	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);

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

	if ($status =~ /^(Mitigation): (.*vulnerable.*)$/) {
		return ("Mitigation-SMT", $2);
	}

	if ($status =~ /^(Mitigation): (.*)$/) {
		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 "${General::swroot}/header.pl";
	31
	32	my %VULNERABILITIES = (
	33	"l1tf" => "$Lang::tr{'foreshadow'} (CVE-2018-3620)",
	34	"mds" => "$Lang::tr{'fallout zombieload ridl'} (CVE-2018-12126, CVE-2018-12130, CVE-2018-12127, CVE-2019-11091)",
	35	"meltdown" => "$Lang::tr{'meltdown'} (CVE-2017-5754)",
	36	"spec_store_bypass" => "$Lang::tr{'spectre variant 4'} (CVE-2018-3639)",
	37	"spectre_v1" => "$Lang::tr{'spectre variant 1'} (CVE-2017-5753)",
	38	"spectre_v2" => "$Lang::tr{'spectre variant 2'} (CVE-2017-5715)",
	39	);
	40
	41	my $errormessage = "";
	42	my $notice = "";
	43
	44	my %mainsettings = ();
	45	my %color = ();
	46	&General::readhash("${General::swroot}/main/settings", \%mainsettings);
	47	&General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color);
	48
	49	my %settings = (
	50	"ENABLE_SMT" => "auto",
	51	);
	52	&General::readhash("${General::swroot}/main/security", \%settings);
	53
	54	&Header::showhttpheaders();
	55
	56	&Header::getcgihash(\%settings);
	57
	58	if ($settings{'ACTION'} eq $Lang::tr{'save'}) {
	59	if ($settings{'ENABLE_SMT'} !~ /^(auto\|on)$/) {
	60	$errormessage = $Lang::tr{'invalid input'};
	61	}
	62
	63	unless ($errormessage) {
	64	&General::writehash("${General::swroot}/main/security", \%settings);
	65	$notice = $Lang::tr{'please reboot to apply your changes'};
	66	}
	67	}
	68
	69	my %checked = ();
	70	$checked{'ENABLE_SMT'}{'auto'} = '';
	71	$checked{'ENABLE_SMT'}{'on'} = '';
	72	$checked{'ENABLE_SMT'}{$settings{'ENABLE_SMT'}} = "checked";
	73
	74	&Header::openpage($Lang::tr{'processor vulnerability mitigations'}, 1, '');
	75
	76	&Header::openbigbox("100%", "left", "", $errormessage);
	77
	78	if ($errormessage) {
	79	&Header::openbox('100%', 'left', $Lang::tr{'error messages'});
	80	print "<font color='red'>$errormessage</font>";
	81	&Header::closebox();
	82	}
	83
	84	if ($notice) {
	85	&Header::openbox('100%', 'left', $Lang::tr{'notice'});
	86	print "<font color='red'>$notice</font>";
	87	&Header::closebox();
	88	}
	89
	90	&Header::openbox('100%', 'center', $Lang::tr{'processor vulnerability mitigations'});
91
92	print <<END;
93	<table class="tbl" width='100%'>
94	<thead>
95	<tr>
96	<th align="center">
97	<strong>$Lang::tr{'vulnerability'}</strong>
98	</th>
99	<th align="center">
100	<strong>$Lang::tr{'status'}</strong>
101	</th>
102	</tr>
103	</thead>
104	<tbody>
105	END
106
107	my $id = 0;
108	for my $vuln (sort keys %VULNERABILITIES) {
109	my ($status, $message) = &check_status($vuln);
110	next if (!$status);
111
112	my $colour = "";
113	my $bgcolour = "";
114	my $status_message = "";
115
116	# Not affected
117	if ($status eq "Not affected") {
118	$status_message = $Lang::tr{'not affected'};
119	$colour = "white";
120	$bgcolour = ${Header::colourblack};
121
122	# Vulnerable
123	} elsif ($status eq "Vulnerable") {
124	$status_message = $Lang::tr{'vulnerable'};
125	$colour = "white";
126	$bgcolour = ${Header::colourred};
127
b23db9b9 AF	128	# Mitigated but smt is enabled
	129	} elsif ($status eq "Mitigation-SMT") {
	130	$status_message = $Lang::tr{'mitigated'};
	131	$colour = "black";
	132	$bgcolour = ${Header::colourorange};
	133
65871d1a MT	134	# Mitigated
	135	} elsif ($status eq "Mitigation") {
	136	$status_message = $Lang::tr{'mitigated'};
	137	$colour = "black";
b23db9b9	138	$bgcolour = ${Header::colouryellow};
65871d1a MT	139
65871d1a MT	140	} else {
b23db9b9 AF	141	$status_message = $status;
	142	$colour = "white";
	143	$bgcolour = ${Header::colourblue};
65871d1a MT	144	}
	145
	146	my $table_colour = ($id++ % 2) ? $color{'color22'} : $color{'color20'};
	147
	148	print <<END;
	149	<tr bgcolor="$table_colour">
	150	<td align="left">
	151	<strong>$VULNERABILITIES{$vuln}</strong>
	152	</td>
	153
	154	<td bgcolor="$bgcolour" align="center">
	155	<font color="$colour">
	156	END
	157	if ($message) {
	158	print "<strong>$status_message</strong>: $message";
	159	} else {
	160	print "<strong>$status_message</strong>";
	161	}
	162
	163	print <<END;
	164	</font>
	165	</td>
	166	</tr>
	167	END
	168	}
	169
	170	print <<END;
	171	</tbody>
	172	</table>
	173	END
	174
	175	&Header::closebox();
	176
	177	print "<form method='post' action='$ENV{'SCRIPT_NAME'}'>\n";
	178
	179	&Header::openbox('100%', 'center', $Lang::tr{'settings'});
	180
1cbcd044 MT	181	my $smt_status = &smt_status();
1cbcd044 MT	182
65871d1a MT	183	print <<END;
	184	<table class="tbl" width="66%">
	185	<tbody>
1cbcd044 MT	186	<tr>
	187	<th colspan="2" align="center">
	188	<strong>$smt_status</strong>
	189	</th>
	190	</tr>
	191
65871d1a MT	192	<tr>
65871d1a MT	193	<td width="50%" align="left">
1cbcd044	194	$Lang::tr{'enable smt'}
65871d1a MT	195	</td>
	196
	197	<td width="50%" align="center">
	198	<label>
	199	<input type="radio" name="ENABLE_SMT"
	200	value="auto" $checked{'ENABLE_SMT'}{'auto'}>
	201	$Lang::tr{'automatic'}
	202	</label> /
	203	<label>
	204	<input type="radio" name="ENABLE_SMT"
	205	value="on" $checked{'ENABLE_SMT'}{'on'}>
	206	$Lang::tr{'force enable'} ($Lang::tr{'dangerous'})
	207	</label>
	208	</td>
	209	</tr>
	210
	211	<tr>
	212	<td colspan="2" align="right">
	213	<input type="submit" name="ACTION" value="$Lang::tr{'save'}">
	214	</td>
	215	</tr>
	216	</tbody>
	217	</table>
	218	END
	219
	220	&Header::closebox();
	221
	222	print "</form>\n";
	223
	224	&Header::closebigbox();
	225
	226	&Header::closepage();
	227
	228	sub check_status($) {
	229	my $vuln = shift;
	230
	231	open(FILE, "/sys/devices/system/cpu/vulnerabilities/$vuln") or return undef;
	232	my $status = <FILE>;
	233	close(FILE);
	234
b23db9b9 AF	235	if ($status =~ /^(Vulnerable): (.*)$/) {
	236	return ($1, $2);
	237	}
	238
	239	if ($status =~ /^(Mitigation): (.vulnerable.)$/) {
	240	return ("Mitigation-SMT", $2);
	241	}
	242
65871d1a MT	243	if ($status =~ /^(Mitigation): (.*)$/) {
	244	return ($1, $2);
	245	}
	246
	247	return $status;
	248	}
1cbcd044 MT	249
	250	sub smt_status() {
	251	open(FILE, "/sys/devices/system/cpu/smt/control");
	252	my $status = <FILE>;
	253	close(FILE);
	254
	255	chomp($status);
	256
	257	if ($status eq "on") {
	258	return $Lang::tr{'smt enabled'};
	259	} elsif (($status eq "off") \|\| ($status eq "forceoff")) {
	260	return $Lang::tr{'smt disabled'};
	261	} elsif ($status eq "notsupported") {
	262	return $Lang::tr{'smt not supported'};
	263	}
	264
	265	return $status;
	266	}