Joomla JE Guestbook 1.0 Local File Inclusion / SQL Injection

`JE Guestbook 1.0 Joomla Component Multiple Remote Vulnerabilities  
  
Name JE Guestbook  
Vendor http://www.joomlaextensions.co.in  
Versions Affected 1.0  
  
Author Salvatore Fresta aka Drosophila  
Website http://www.salvatorefresta.net  
Contact salvatorefresta [at] gmail [dot] com  
Date 2010-09-30  
  
X. INDEX  
  
I. ABOUT THE APPLICATION  
II. DESCRIPTION  
III. ANALYSIS  
IV. SAMPLE CODE  
V. FIX  
  
  
I. ABOUT THE APPLICATION  
________________________  
  
JE Guest Component is an open source Joomla guestbook  
component with spam protection and many customization  
options.  
  
  
II. DESCRIPTION  
_______________  
  
Some parameters are not properly sanitised.  
  
  
III. ANALYSIS  
_____________  
  
Summary:  
  
A) Local File Inclusion  
B) Multiple Blind SQL Injection  
  
  
A) Local File Inclusion  
_______________________  
  
Input passed to the "view" parameter in jeguestbook.php  
(when option is set to com_jeguestbook) is not properly  
verified before being used to include files. This can be  
exploited to include arbitrary files from local  
resources via directory traversal attacks and  
URL-encoded NULL bytes.  
  
  
B) Multiple Blind SQL Injection  
_______________________________  
  
Many parameters are not properly sanitised before being  
used in SQL queries.This can be exploited to manipulate  
SQL queries by injecting arbitrary SQL code.  
  
  
IV. SAMPLE CODE  
_______________  
  
A) Local File Inclusion  
  
http://site/path/index.php?option=com_jeguestbook&view=../../../../../../../../etc/passwd%00  
  
  
B) Multiple Blind SQL Injection  
  
http://site/path/index.php?option=com_jeguestbook&view=item_detail&d_itemid=-1 OR (SELECT(IF(0x41=0x41, BENCHMARK(999999999,NULL),NULL)))  
  
  
V. FIX  
______  
  
No fix.  
  
`