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Wireless Transfer App 3.7 iOS - Multiple Web Vulnerabilities
Dec 05 2013 01:02PM
Vulnerability Lab (research vulnerability-lab com)
Wireless Transfer App 3.7 iOS - Multiple Web Vulnerabilities
Vulnerability Laboratory ID (VL-ID):
Common Vulnerability Scoring System:
Product & Service Introduction:
Wireless Transfer App is an easy to use photo and video transfer tool. It helps you easily and quickly transfer photos and videos
between iPhone and iPad, as well as transfer photos and videos from computer to iPad/iPhone/iPod and vice verse. With Wireless
Transfer App, you can transfer photos and videos from iPad to iPad, from iPad to iPhone, from iPhone to iPad, from iPhone to iPhone,
from computer to iPad, from iPhone to computer and more. There is no need for USB cable or extra software. You just need to put your
devices under the same Wi-Fi network.
(Copy of the Homepage: https://itunes.apple.com/en/app/wireless-transfer-app-share/id543119010 & http://www.wirelesstransferapp.com/ )
Abstract Advisory Information:
The Vulnerability Laboratory Research Team discovered multiple command/path inject vulnerabilities in the Wireless Transfer App v3.7 for apple iOS.
Vulnerability Disclosure Timeline:
2012-11-30: Public Disclosure (Vulnerability Laboratory)
Wireless Transfer App COM
Product: Wireless Transfer App 3.7
Technical Details & Description:
A local command/path injection web vulnerability has been discovered in the Wireless Transfer App v3.7 for apple iOS.
The vulnerability allows to inject local commands via vulnerable system values to compromise the apple mobile iOS application.
The vulnerability is located in the in the album name value of the wireless transfer app index and sub category list module.
Remote attackers are able to manipulate iOS device - `photo app` (default) album names. The execute of the injected
command/path request occurs in the album sub category list and the main album name index list. The security risk of the
command/path inject vulnerabilities are estimated as high(-) with a cvss (common vulnerability scoring system) count of 6.7(-).
Exploitation of the command/path inject vulnerability requires a local low privileged iOS device account with restricted access
and no direct user interaction. Successful exploitation of the vulnerability results unauthorized execution of system specific
commands or unauthorized path requests.
[+] Wireless Transfer App v3.7
[+] album name
[+] photoGallery_head - album
[+] Index - Album Name List
[+] Sub Category - Title Album Name List
Proof of Concept (PoC):
The local command inject web vulnerabilities can be exploited by local low privileged device user accounts with low
user interaction. For security demonstration or to reproduce the vulnerability follow the information and steps below.
Manual steps to exploit the vulnerability ...
1. Install the wireless transfer v3.7 iOS mobile application
2. Open the default Photo app of your iOS device
3. Include an album with the following payload `">%20<x src=\..\<../var/mobile/Library/[x application path]>` and save it
4. Switch back to the installed wireless transfer app and start the wifi transfer
5. Open the local web-server url http://localhost:6688/ (default link)
6. The local path/command execute occurs in the album name value of the photoGallery_head class
7. Successful reproduce of the vulnerability!
PoC: Album Name - photoGallery_head in the Album Sub Category List
<div class="logo"> <a href="index.html"><img src="images/logo.png" alt="logo"></a> </div>
<div class="title"><a href="index.html"><img src="images/title4.png" alt="logo"></a></div>
<div class="button"><a href="upload.html"><img src="images/anniuda2.png" alt=" "></a></div>
<div class="phga_hd_left">Album : ">%20<x src=\..\<../[COMMAND/PATH INJECT VULNERABILITY IN ALBUM NAME BY photoGallery_head CLASS!]></div>
<input value="Zurück zur Sammlung" class="back" type="button">
PoC: Album Name - photoalbum in the Album Index List
<dl><dt class="photoalbum" alt="D579B80C-B73D-4A16-9379-FB29A6CFC12C"><a href="albumhtm?id=D579B80C-B73D-4A16-9379-FB29A6CFC12C">
<img src="/albumimg_D579B80C-B73D-4A16-9379-FB29A6CFC12C.jpg" height="100" width="100"></a></dt>
<dd>>%20<x src=\..\<../[COMMAND/PATH INJECT VULNERABILITY IN ALBUM NAME BY photoalbum!]>(125)</dd></dl>
<dl><dt class="photoalbum" alt="632F9F75-1B7A-41E4-8070-E62B1ECC780A"><a href="albumhtm?id=632F9F75-1B7A-41E4-8070-E62B1ECC780A">
<img src="/albumimg_632F9F75-1B7A-41E4-8070-E62B1ECC780A.jpg" height="100" width="100"></a></dt><dd>Fotoarchiv(0)</dd></dl>
<dl><dt class="photoalbum" alt="C44B3062-3A67-4BFA-AF16-04CC8DE2CD29"><a href="albumhtm?id=C44B3062-3A67-4BFA-AF16-04CC8DE2CD29">
<img src="/albumimg_C44B3062-3A67-4BFA-AF16-04CC8DE2CD29.jpg" height="100" width="100"></a></dt><dd>WallpapersHD(3)</dd></dl>
Solution - Fix & Patch:
The vulnerability can be patched by a secure encode and parse of the vulnerable album name value.
Parse and filter also the index and sub category output list to ensure it prevents local command/path requests.
The security risk of the local command/path inject web vulnerability is estimated as high.
Credits & Authors:
Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (bkm (at) evolution-sec (dot) com [email concealed]) [www.vulnerability-lab.com]
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