bugtraq - HYSA-2006-006 G-Book 1.0 XSS And Other Vulnerabilities

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Date: 27 Mar 2006 09:12:58 -0000
From: h4cky0u.org@...il.com
To: bugtraq@...urityfocus.com
Subject: HYSA-2006-006 G-Book 1.0 XSS And Other Vulnerabilities

------------------------------------------------------
      HYSA-2006-006 h4cky0u.org Advisory 015
------------------------------------------------------
Date - Mon March 27 2006

TITLE:
======

G-Book 1.0 XSS, Possible authentication bypass & mass message flood

SEVERITY:
=========

High

SOFTWARE:
=========

G-Book 1.0 

Support Website - http://www.6al.net/six/

INFO:
=====

G-book is extremely simple to customize and publish. There is no need for a MySQL Database. The script incorporates features 

such as administration panel, MESSAGE APPROVAL, smilies, divided posts by pages etc. Its graphics can be altered effortlessly 

through the CSS file. In addition, G-book supports multiple languages. 

DESCRIPTION:
============

G-Book 1.0 is vulnerable to a XSS attack and you can also get admin access to the guestbook if the user hasn't deleted his 

cookie.

--==XSS==--

In the message board post a message with something like this:

<script>alert();</script>

Another bug in G-Book is that a user can post as many messages as he wants to.

FIX:
====

htmlspecialchars + a logout button which will destroy the cookies and post cotrol.

VENDOR RESPONSE:
================

Bug will be fixed in the next version.

CREDITS:
========

- This vulnerability was discovered and researched by matrix_killer of h4cky0u Security Forums -

mail : matrix_k at abv.bg

web : http://www.h4cky0u.org

- Co-Researcher -

h4cky0u of h4cky0u Security Forums.

mail : h4cky0u at gmail.com

web : http://www.h4cky0u.org

Greets to all omega-team members + krassswr,EcLiPsE and all who support us !!!

ORIGINAL ADVISORY:
==================

http://www.h4cky0u.org/advisories/HYSA-2006-006-g-book.txt