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qdPM 9.1 Arbitrary File Upload

qdPM 9.1 Arbitrary File Upload
Posted May 12, 2020
Authored by Besim Altinok, Ismail Bozkurt

qdPM version 9.1 suffers from an arbitrary file upload vulnerability.

tags | exploit, arbitrary, file upload
SHA-256 | 29677c9aeba89af9fcf295f75937caccf52029e7fa9463e55173aedd624ed875

qdPM 9.1 Arbitrary File Upload

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# Exploit Title: qdPM 9.1 - Arbitrary File Upload
# Date: 2020-05-06
# Author: Besim ALTINOK
# Vendor Homepage: https://sourceforge.net/projects/qdpm/
# Software Link: https://sourceforge.net/projects/qdpm/
# Version: v9.1 (Maybe it affect other versions)
# Tested on: Xampp
# Credit: ─░smail BOZKURT
# Remotely: Yes

Description
--------------------------------------------------------------------

When a normal user tries to update their profile, they can arbitrarily
upload files to the user_photo area. Because there are no file extension
controls. Additionally, the .htaccess file has some protection against
malicious .php file. But, the developer writes the wrong regex. So, the
Attacker can change extension as (.PHP) and run code on the server

.htaccess file content:
----------------------------------------------
# This is used to restrict access to this folder to anything other
# than images

# Prevents any script files from being accessed from the images folder
<FilesMatch "\.(php([0-9]|s)?|s?p?html|cgi|pl|exe)$">
Order Deny,Allow
Deny from all
</FilesMatch>

Vulnerable File-1: actions.class.php
----------------------------------------------
Vulnerable function: processForm
---------------------------------------------
Vulnerable area:
---------------------------------------------

<?php

protected function processForm(sfWebRequest $request, sfForm $form)
{
$files = $request->getFiles();
$userPhoto = $files['users']['photo']['name'];

$form->bind($request->getParameter($form->getName()),
$request->getFiles($form->getName()));
if ($form->isValid())
{
$user = $this->getUser()->getAttribute('user');

$this->checkUser($form['email']->getValue(),$user->getId());

$form->setFieldValue('users_group_id',$user->getUsersGroupId());
$form->setFieldValue('active',$user->getActive());

$hasher = new PasswordHash(11, false);

if(isset($form['new_password']))
{
if(strlen($form['new_password']->getValue())>0)
{
$form->setFieldValue('password',
$hasher->HashPassword($form['new_password']->getValue()));
}
}

if(strlen($userPhoto)>0)
{
$userPhoto = rand(111111,999999) . '-' . $userPhoto;
$filename = sfConfig::get('sf_upload_dir') . '/users/' . $userPhoto;
move_uploaded_file($files['users']['photo']['tmp_name'], $filename);
$form->setFieldValue('photo', $userPhoto);

app::image_resize($filename,$filename);
}
else
{
$form->setFieldValue('photo', $form['photo_preview']->getValue());
}

?>
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