qdPM 9.1 – Arbitrary File Upload

• Exploit Database
• 16 阅读

• 作者： Besim
  日期： 2020-05-12
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/48460/

• # 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: İsmail 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());
  }
  
  ?>