Netautor Professional 5.5.0 (goback) XSS Vulnerability Vendor: /digiconcept/ Product web page: http://www.digiconcept.net Affected version: 5.5.0 and DW 5.3.1 Summary: Netautor Professional is an application server and development environment. Netautor Professional was developed to serve the practical needs of users, and was continuously advanced. -- Digital Workroom is a well proven and time-tested Content Management System. It`s based on also digiconcept`s developed Application Server "Netautor Professional" and PHP 5. The standard functional range covers the majoritarian needs on Internet- and Intranet environments for publication and communication. Desc: Netautor Professional v5.5.0 suffers from a XSS vulnerability because input passed via the "goback" parameter to login2.php script is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site. ----------------------------- [FILE] :: [LINE#] :: [STRING] ----------------------------- \ROOT\digitalworkroom\exports\DW_5.3\mlayouts_262527331.xml :: 532 :: unset($GLOBALS['goback']); \ROOT\digitalworkroom\exports\DW_5.3\mlayouts_262527331.xml :: 536 :: if(!empty($GLOBALS['goback'])) $values['USER_TARGET'][0] = $GLOBALS['goback']; \ROOT\digitalworkroom\exports\DW_5.3\mlayouts_262527331.xml :: 575 :: /* Auf GLOBALS['goback'] von NPF_SECURE reagieren*/ \ROOT\digitalworkroom\exports\DW_5.3\mlayouts_262527331.xml :: 661 :: &lt;?php if (empty( $GLOBALS['goback'])): ?&gt; \ROOT\netautor\napro4\home\login2.msk :: 49 :: <input type="hidden" name="goback" value="<?php echo($goback); ?>" > \ROOT\netautor\napro4\home\login2.php :: 38 :: if(empty($goback)) $goback = $USER->get_feature_value('initial_doc'); \ROOT\netautor\napro4\include\functions\users.fnc :: 822 :: if (!strpos($url,'&goback=')) $url.='&goback='.rawurlencode($PHP_SELF); \ROOT\netautor\napro4\include\npf_lib\npf_special.fnc :: 155 :: $redirect.=( strpos($redirect,'?') ? '&' : '?' ).'goback='.rawurlencode( $REQUEST_URI ); ----------------------------------------------------------------------------------------- Tested on: MS WinXP Pro SP3 (EN) PHP 5.3.0 MySQL 5.1.36 Apache 2.2.11 (Win32) Vendor status: [14.09.2010] Vulnerability discovered. [15.09.2010] Contact with the vendor. [17.09.2010] No reply from vendor. [17.09.2010] Public advisory released. Vulnerability discovered by: Gjoko 'LiquidWorm' Krstic liquidworm gmail com Zero Science Lab - http://www.zeroscience.mk Advisory ID: ZSL-2010-4964 Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2010-4964.php PoC: http://10.0.0.17/netautor/napro4/home/login2.php?goback=%22%3Cscript%3Ealert%28document.location%29%3C/script%3E