1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
<?php
// Copyright (C) 2015 Remy van Elst
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero 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 Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
function crl_verify($raw_cert_data, $verbose=true) {
global $random_blurp, $timeout;
$cert_data = openssl_x509_parse($raw_cert_data);
$cert_serial_nm = strtoupper(bcdechex($cert_data['serialNumber']));
$crl_uris = [];
$crl_uri = explode("\nFull Name:\n ", $cert_data['extensions']['crlDistributionPoints']);
foreach ($crl_uri as $key => $uri) {
if (!empty($uri) ) {
$uri = explode("URI:", $uri);
foreach ($uri as $key => $crluri) {
if (!empty($crluri) ) {
$crl_uris[] = preg_replace('/\s+/', '', $crluri);
}
}
}
}
foreach ($crl_uris as $key => $uri) {
if (!empty($uri)) {
if (0 === strpos($uri, 'http')) {
$fp = fopen ("/tmp/" . $random_blurp . "." . $key . ".crl", 'w+');
$ch = curl_init(($uri));
curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_FAILONERROR, true);
curl_setopt($ch, CURLOPT_FRESH_CONNECT, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_MAXREDIRS, 5);
if(curl_exec($ch) === false) {
echo '<pre>Curl error: ' . htmlspecialchars(curl_error($ch)) ."</pre>";
}
curl_close($ch);
if(stat("/tmp/" . $random_blurp . "." . escapeshellcmd($key) . ".crl")['size'] < 10 ) {
unlink("/tmp/" . $random_blurp . "." . escapeshellcmd($key) . ".crl");
return false;
}
$crl_text = shell_exec("timeout " . $timeout . " openssl crl -noout -text -inform der -in /tmp/" . $random_blurp . "." . escapeshellcmd($key) . ".crl 2>&1");
$crl_last_update = shell_exec("timeout " . $timeout . " openssl crl -noout -lastupdate -inform der -in /tmp/" . $random_blurp . "." . escapeshellcmd($key) . ".crl");
$crl_next_update = shell_exec("timeout " . $timeout . " openssl crl -noout -nextupdate -inform der -in /tmp/" . $random_blurp . "." . escapeshellcmd($key) . ".crl");
unlink("/tmp/" . $random_blurp . "." . escapeshellcmd($key) . ".crl");
if ( strpos($crl_text, "unable to load CRL") === 0 ) {
if ( $verbose ) {
$result = "<span class='text-danger glyphicon glyphicon-exclamation-sign'></span> - <span class='text-danger'>CRL invalid. (" . $uri . ")</span><br><pre> " . htmlspecialchars($crl_text) . "</pre>";
return $result;
} else {
$result = "<span class='text-danger glyphicon glyphicon-remove'></span>";
return $result;
}
}
$crl_info = explode("Revoked Certificates:", $crl_text)[0];
$crl_certificates = explode("Revoked Certificates:", $crl_text)[1];
$crl_certificates = explode("Serial Number:", $crl_certificates);
$revcert = array('bla' => "die bla");
foreach ($crl_certificates as $key => $revoked_certificate) {
if (!empty($revoked_certificate)) {
$revcert[str_replace(" ", "", explode("\n", $revoked_certificate)[0])] = str_replace(" Revocation Date: ", "", explode("\n", $revoked_certificate)[1]);
}
}
if( array_key_exists($cert_serial_nm, $revcert) ) {
if ( $verbose ) {
$result = "<span class='text-danger glyphicon glyphicon-exclamation-sign'></span> - <span class='text-danger'>REVOKED on " . $revcert[$cert_serial_nm] . ". " . $uri . "</span><br><pre> " . $crl_last_update . " " . $crl_next_update . "</pre>";
} else {
$result = "<span class='text-danger glyphicon glyphicon-remove'></span>";
}
} else {
if ( $verbose ) {
$result = "<span class='text-success glyphicon glyphicon-ok-sign'></span> <span class='text-success'> - " . $uri . "</span><br><pre> " . $crl_last_update . " " . $crl_next_update . "</pre>";
} else {
$result = "<span class='text-success glyphicon glyphicon-ok'></span>";
}
}
return $result;
}
}
}
}
function crl_verify_json($raw_cert_data) {
global $random_blurp, $timeout;
$result = [];
$cert_data = openssl_x509_parse($raw_cert_data);
$cert_serial_nm = strtoupper(bcdechex($cert_data['serialNumber']));
$crl_uris = [];
$crl_uri = explode("\nFull Name:\n ", $cert_data['extensions']['crlDistributionPoints']);
foreach ($crl_uri as $key => $uri) {
if (isset($uri) ) {
$uri = explode("URI:", $uri);
$uri = $uri[1];
if (isset($uri) ) {
$crl_uris[] = preg_replace('/\s+/', '', $uri);
}
}
}
foreach ($crl_uris as $key => $uri) {
$crl_no = $key+1;
if (0 === strpos($uri, 'http')) {
$result[$crl_no]["crl_uri"] = $uri;
$fp = fopen ("/tmp/" . $random_blurp . "." . $key . ".crl", 'w+');
$ch = curl_init(($uri));
curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_FAILONERROR, true);
curl_setopt($ch, CURLOPT_FRESH_CONNECT, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
if(curl_exec($ch) === false) {
$result[$crl_no]["error"] = 'Curl error: ' . htmlspecialchars(curl_error($ch));
}
curl_close($ch);
if(stat("/tmp/" . $random_blurp . "." . escapeshellcmd($key) . ".crl")['size'] < 10 ) {
$result[$crl_no]["error"] = "crl could not be retreived";
}
$crl_text = shell_exec("timeout " . $timeout . " openssl crl -noout -text -inform der -in /tmp/" . $random_blurp . "." . escapeshellcmd($key) . ".crl 2>&1");
$crl_last_update = shell_exec("timeout " . $timeout . " openssl crl -noout -lastupdate -inform der -in /tmp/" . $random_blurp . "." . escapeshellcmd($key) . ".crl");
$crl_last_update = explode("=", $crl_last_update)[1];
$crl_next_update = shell_exec("timeout " . $timeout . " openssl crl -noout -nextupdate -inform der -in /tmp/" . $random_blurp . "." . escapeshellcmd($key) . ".crl");
$crl_next_update = explode("=", $crl_next_update)[1];
unlink("/tmp/" . $random_blurp . "." . escapeshellcmd($key) . ".crl");
if ( strpos($crl_text, "unable to load CRL") === 0 ) {
$result[$crl_no]["status"] = "invalid";
}
$crl_info = explode("Revoked Certificates:", $crl_text)[0];
$crl_certificates = explode("Revoked Certificates:", $crl_text)[1];
$crl_certificates = explode("Serial Number:", $crl_certificates);
$revcert = array();
foreach ($crl_certificates as $key => $revoked_certificate) {
if (!empty($revoked_certificate)) {
$revcert[str_replace(" ", "", explode("\n", $revoked_certificate)[0])] = str_replace(" Revocation Date: ", "", explode("\n", $revoked_certificate)[1]);
}
}
if( array_key_exists($cert_serial_nm, $revcert) ) {
$result[$crl_no]["status"] = "revoked";
$result[$crl_no]["revoked_on"] = $revcert[$cert_serial_nm];
$result[$crl_no]["crl_last_update"] = $crl_last_update;
$result[$crl_no]["crl_next_update"] = $crl_next_update;
} else {
$result[$crl_no]["status"] = "ok";
$result[$crl_no]["crl_last_update"] = $crl_last_update;
$result[$crl_no]["crl_next_update"] = $crl_next_update;
}
}
}
return $result;
}
?>
|
