Twenty Year Anniversary

WordPress CP Polls 1.0.8 Malicious File Download

WordPress CP Polls 1.0.8 Malicious File Download
Posted Mar 2, 2016
Authored by Joaquin Ramirez Martinez

WordPress CP Polls plugin version 1.0.8 suffers from a cross site request forgery vulnerability that can be leveraged to turn a file download into a malicious .bat file.

tags | advisory, csrf
MD5 | dbe083b893e422705f8ab69a8273cc3f

WordPress CP Polls 1.0.8 Malicious File Download

Change Mirror Download
# Exploit Title: WordPress CP Polls 1.0.8 - Reflected file download (.bat file)
# Date: 2016-02-22
# Google Dork: Index of /wp-content/plugins/cp-polls/
# Exploit Author: Joaquin Ramirez Martinez [ i0akiN SEC-LABORATORY ]
# Plugin URI: http://wordpress.dwbooster.com/forms/cp-polls
# Version: 1.0.8
# Demo: https://www.youtube.com/watch?v=uc6P59BPEkU

=============
Description
=============

With **CP Polls** you can publish a poll into a page/post and optionally display statistics of the results.
You can receive email notifications every time a vote is added or opt to receive Excel reports periodically.

The Polls can have dependant questions, this means that some questions are displayed depending of the
selection made on other questions.

(copy of README.txt)


===================
Technical details
===================

CP Polls plugin for wordpress is prone to file download issue. A hacker is able to attack an administrator by
exploiting a CSRF in the 'change cp poll name' converting the downloadable report file (csv) to a malicious .bat file.
Because there is not restriction in the cp poll name the CSRF exploit can change the name to ...

malicious.bat;

The semicolon (;) character must be restricted because the header 'Content-Disposition' uses this characteer as a
parameter delimitation. For example, when we change the name of a cp poll to 'malicious.bat;' when an administrator
download the report (thinking that is a csv file) the response header turns:
""
Content-Disposition: attachment; file=malicious.bat;.csv
""
the csv is ignored and the administrator gets a .BAT file


So, how to exploit this vulnerability to execute commands on the victim's machine?
Whe have an option. If the cp_poll is added in a post we can vote them and we can inject our malicious payload
into a votation.

==============================
Proof of Concept CSRF (html)
==============================

https://www.youtube.com/watch?v=uc6P59BPEkU

==========================

If the csrf attack is succesful, we only need to inject our commands in votations. In ´fieldnames´ post parameter
we can inject our commands.

==========
CREDITS
==========

Vulnerability discovered by:
Joaquin Ramirez Martinez [i0 security-lab]
joaquin.ramirez.mtz.lab[at]gmail[dot]com
https://www.facebook.com/I0-security-lab-524954460988147/
https://www.youtube.com/channel/UCe1Ex2Y0wD71I_cet-Wsu7Q


========
TIMELINE
========

2016-02-10 vulnerability discovered
2016-02-22 reported to vendor
2016-03-01 released cp polls v1.0.9
2016-03-01 public disclousure

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

Want To Donate?


Bitcoin: 18PFeCVLwpmaBuQqd5xAYZ8bZdvbyEWMmU

File Archive:

July 2018

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Jul 1st
    1 Files
  • 2
    Jul 2nd
    26 Files
  • 3
    Jul 3rd
    15 Files
  • 4
    Jul 4th
    11 Files
  • 5
    Jul 5th
    13 Files
  • 6
    Jul 6th
    4 Files
  • 7
    Jul 7th
    4 Files
  • 8
    Jul 8th
    1 Files
  • 9
    Jul 9th
    16 Files
  • 10
    Jul 10th
    15 Files
  • 11
    Jul 11th
    32 Files
  • 12
    Jul 12th
    22 Files
  • 13
    Jul 13th
    15 Files
  • 14
    Jul 14th
    1 Files
  • 15
    Jul 15th
    1 Files
  • 16
    Jul 16th
    21 Files
  • 17
    Jul 17th
    15 Files
  • 18
    Jul 18th
    15 Files
  • 19
    Jul 19th
    17 Files
  • 20
    Jul 20th
    11 Files
  • 21
    Jul 21st
    1 Files
  • 22
    Jul 22nd
    0 Files
  • 23
    Jul 23rd
    0 Files
  • 24
    Jul 24th
    0 Files
  • 25
    Jul 25th
    0 Files
  • 26
    Jul 26th
    0 Files
  • 27
    Jul 27th
    0 Files
  • 28
    Jul 28th
    0 Files
  • 29
    Jul 29th
    0 Files
  • 30
    Jul 30th
    0 Files
  • 31
    Jul 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2018 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close