Title:
======
OPlayer v2.0.05 iOS - Multiple Web Vulnerabilities


Date:
=====
2012-10-01


References:
===========
http://www.vulnerability-lab.com/get_content.php?id=715


VL-ID:
=====
719


Common Vulnerability Scoring System:
====================================
4.5


Introduction:
=============
OPlayer is used to boost your iPhone/iPod s media abilities, you can also use it to streaming audio and video over the internet.

OPlayer HD - Customized for iPad is ready for sale in app store.
OPlayer needs iPod gen3 or later models, iPhone3gs or later models to play non-native media formats.
Supported File Format Extension

XVID/DIVX AVI, WMV, RMVB, ASF, H264, MKV, TS, M2TS ... most of all movie file formats.
MP3, WMA, WAV, OGG, FLAC... most of all audio file formats.
SMI, ASS, SUB, SRT, TXT... most of all subtitle file formats.

USB Sync: Use itunes to fast sync movies to your iPad.
WIFI Upload: Upload movies by the web browser of your computer, support ie/safari/firefox/chrome.
FTP server: Upload movies by the ftp client of your computer, support cyberduck/filezilla.
FTP Client: You can download files from FTP server to your iPad.
SAMBA Client: You can download files from SAMBA server to your iPad.
Streaming: Support HTTP/RTSP/MMS/FTP/SAMBA streaming.
File Management: Support New/Rename/Cut/Paste/Delete.
Playlist: Create your own playlist, and play files continuous, you can even use OPlayer as a music player.
Different Play Mode: Support Loop off/Loop One/Loop all.
Screen Lock: View your movie even on the bed.
Dynamically Menu: Dynamically choose audio/subtitle/video channel and encoding method.
Resume Function: Don t worry about closing your application suddenly.
TV Out: Both cable TV out and AirPlay are supported.
iTunes Backup: By default, we will not backup media data when you do iTunes sync, and you can t see 
the files in iTunes, you can enable it in the settings page to backup your media data.

(Copy of the Vendor Homepage: http://itunes.apple.com/us/app/oplayer-best-video-music-media/id344784375?mt=8 )


Abstract:
=========
The Vulnerability Laboratory Research Team discovered multiple Web Vulnerabilities in the OPlayer application v2.0.05 for Apples iPhone, iPod Touch & iPad.


Report-Timeline:
================
2012-10-01:  Public Disclosure


Status:
========
Published


Affected Products:
==================
OlimSoft
Product: OPlayer - iPhone,iPod Touch & iPad v2.0.05


Exploitation-Technique:
=======================
Remote


Severity:
=========
Medium


Details:
========
Multiple persistent web vulnerabilities are detected in the OPlayer application v2.0.05 for Apples iPhones, iPod Touche & iPads.
The vulnerability allows an attacker (remote) to inject own malicious persistent script code to compromise the affected mobile application.

The first web vulnerability is located in the OPlayer WIFI Transfer application module in the create/rename folder function with the bound 
vulnerable folder name parameter. Attackers can inject own malicious script code or malware as foldername. The script code will be executed 
out of the main application name listing web context.

The secound vulnerability is located in the OPlayer WIFI Transfer application module when processing to delete a script code tag as foldername.
The mobile device application itself ask when processing to delete a malicious injected script code as foldername. The application did not 
parse the request when processing to display the ask to confirm delete messagebox. Attackers can use the not parsed +filename function to execute 
malicious persistent script code out of the ask to confirm messagebox when processing to delete a folder.

The vulnerabilities can be exploited by remote attackers without privileged user account & with low  user inter action. 
Successful exploitation of the vulnerabilities result in application compromise via persistent injects, information disclosure (local files), 
persistent malware loads or persistent web context request manipulation. The wifi application needs to be activated because of the remote 
available http interface to upload music for oplayer. The service itself allows to inject remotly without using any permission change or password.
When the mobile iOS device has been opened via jailbreak the attack can also result in a mobile device take over with full control by the remote attacker.


Vulnerable Application(s):
        [+] OPlayer - iPhone, iPad & iPod Touch

Vulnerable Service(s):
        [+] HTTP - OPlayer WIFI Transfer

Vulnerable Module(s):
        [+] Create Folder
        [+] Delete Folder

Vulnerable Parameter(s):
        [+] Foldername - Name (i)
        [+] FileName - +Filename (dls)

Affected Section(s):
        [+] Index Application Listing - Name
        [+] Ask to Confirm  - Delete Message


Proof of Concept:
=================
The persistent web vulnerabilities can be exploited by remote attacker and low or medium required user inter action without privileged application 
user account. For demonstration or reproduce ...


Review: Index Application Listing - Name   

<table class="filesTable" cellpadding="0" cellspacing="0">    <thead>    <tr>    <td class="hi"></td>    <td class="hn">Name</td>    
<td class="hm">Last Modified</td>    <td class="hs">Size</td>    <td class="hk">Kind</td>    <td class="he"></td>    <td class="he"></td>    
<td class="hl"></td>    </tr>    </thead><tbody><tr>
<td class="i"><a href=""><[[PERSISTENT MALICIOUS INJECTED SCRIPT CODE!]];)" <="" "=""><img src="/folder.png" 
width="20" height="20"></a></td><
td class="n"><a href=""><[[PERSISTENT MALICIOUS INJECTED SCRIPT CODE!]]") </">"><[[PERSISTENT MALICIOUS INJECTED SCRIPT CODE!]]") 
<</a></td>
<td class="m">2012-09-30 16:07:32</td><td class="s"></td><td class="k">Folder</td><td class="e">
<span style="height:15px; width:15px;"> </span></td><td class="e"><input type="image" src="/webrename.png" 
onClick="modalPopup(""><[[PERSISTENT MALICIOUS INJECTED SCRIPT CODE!]]") <", 0, 0);" title="Rename file" width="15" height="15"/>
</td><td class="e"><input type="image" src="/webdelete.png" onClick="modalPopup("
"><[[PERSISTENT MALICIOUS INJECTED SCRIPT CODE!]]") <
", 2, 0);" title="Delete file" width="15" height="15"/></td></tr><tr class="c"><td class="i"><a href="test/">
<img src="/folder.png" width="20" height="20"></a></td><td class="n"><a href="test/">test</a></td><
td class="m">2012-09-29 22:28:14</td><td class="s"></td><td class="k">Folder</td><td class="e"><
span style="height:15px; width:15px;"> </span></td><td class="e"><input type="image" src="/webrename.png" 
onClick="modalPopup("test", 0, 0);" title="Rename file" width="15" height="15"/></td><td class="e"><input 
type="image" src="/webdelete.png" onClick="modalPopup("test", 2, 0);" title="Delete file" width="15" 

height="15"/></td></tr><tr><td class="i"><a href="unbenannte Datei"><img src="/unknown.png" width="20" 

height="20"></a></td><td class="n"><a href="unbenannte Datei">unbenannte Datei</a></td><
td class="m">2012-09-30 16:00:19</td><td class="s">0 Byte</td><td class="k">File</td><
td class="e"><input type="image" src="/webdownload.png" onClick="downloadFile("unbenannte Datei");" 
title="Download file" width="15" height="15"/></td><td class="e"><input type="image" src="/webrename.png" 
onClick="modalPopup("unbenannte Datei", 0, 1);" title="Rename file" width="15" height="15"/></td><
td class="e"><input type="image" src="/webdelete.png" onClick="modalPopup("unbenannte Datei", 2, 1);" 
title="Delete file" width="15" height="15"/></td></tr><tr class="c"><td class="i"><a href="unbenannter Ordner/">
<img src="/folder.png" width="20" height="20"></a></td><td class="n"><a href="unbenannter Ordner/"
>unbenannter Ordner</a></td><td class="m">2012-09-30 16:00:16</td><td class="s"></td><td class="k"
>Folder</td><td class="e"><span style="height:15px; width:15px;"> </span></td><td class="e">
<input type="image" src="/webrename.png" onClick="modalPopup("unbenannter Ordner", 0, 0);" title="Rename file" width="15" 
height="15"/></td><td class="e"><input type="image" src="/webdelete.png" onClick="modalPopup("unbenannter 
Ordner", 2, 0);" title="Delete file" width="15" height="15"/></td></tr></tbody></table>    </div><div 
class="copyright"><p>Copyright © 2011 OLIMSOFT. All Rights Reserved.</p></div>    </td>    <!-- right 
table contents -->    <td class="right_content">    <div id="file-uploader">    <noscript>    <p>Please enable 
JavaScript to use file uploader.</p>    </noscript>    </div>    </td></tr>     </table>  <!-- upload 
file script -->     <script>             function createUploader(){         var uploader = new qq.FileUploader({         
element: document.getElementById('file-uploader')         });     }     window.onload = createUploader;     </script><!-- modal 
content --><div id="modal-content">     <div id="modal-title"></div>     <div id="modal-text"></div>     
<form name="input" action="" method="post">     <div id="modal-field"></div>     <input type="hidden" name="ID" id="ID">     
<input type="submit" name="submitButton" id="submitButton">     </form>     
</div></body></html></iframe></a></td></tr></tbody></table>


Review: Ask to Confirm  - Delete Message

<div id="modal-title"><h3>Delete File</h3></div>     <div id="modal-text">
<a>Are you sure you want to delete this file?
"<[[PERSISTENT MALICIOUS INJECTED SCRIPT CODE!]]") <"</a></div>     
<form name="input" action="" method="post"> <div id="modal-field"><input type="hidden" name="deleteFile" 
value="[[PERSISTENT MALICIOUS INJECTED SCRIPT CODE!]]"></div>     
<input type="hidden" name="ID" id="ID" value="test"> <input type="submit" name="submitButton" id="submitButton" value="Delete"></form>     

</div></div></div></body></html>


Solution:
=========
The vulnerability can be patched by parsing the app and interface foldername input mask and output listing.
The secound vulnerability can be patched by parsing the displayed web context in the ask to confirm question.
The input fields should be restricted with the following useful input characters [a-z][A-Z][0-9].


Risk:
=====
The security risk of the persistent input validation vulnerabilities are estimated as medium(+).


Credits:
========
Vulnerability Laboratory [Research Team]  -    Benjamin Kunz Mejri (bkm@vulnerability-lab.com)


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===========
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