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Date: Thu, 17 Mar 2016 21:10:13 +0000 From: Javier Nieto <jnietotn@...il.com> To: fulldisclosure@...lists.org Subject: [FD] FortiOS (Fortinet) - Open Redirect and Cross Site Scripting Description =================================================================== The FortiOS webui accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect. The redirect input parameter is also prone to a cross site scripting. Public Fortinet Security Advisory (Mar 16 2016): http://www.fortiguard.com/advisory/fortios-open-redirect-vulnerability PoC =================================================================== The parameter "redir" in the Fortiweb web login portal is vulnerable to Open Redirect and Cross Site Scripting 1. Open Redirect ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ http[s]://fortigate-management-ip-address/login?redir=http[:]//evil-site 2. Cross Site Scripting ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ http[s]://fortigate-management-ip-address/login?redir=javascript:alert(document.cookie) Solution =================================================================== Upgrade to one the following FortiOS versions: * 5.0 branch: 5.0.13 or above * 5.2 branch: 5.2.3 or above * 5.4 branch: 5.4.0 or above *** 4.3 and lower branches are not affected by this vulnerability. Authors: =================================================================== Javier Nieto - @BehindFirewalls http://www.behindthefirewalls.com _______________________________________________ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: http://seclists.org/fulldisclosure/
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