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[Full-disclosure] Private Camera Pro v5.0 iOS - Multiple Web Vulnerabilities
- To: full-disclosure@xxxxxxxxxxxxxxxxx
- Subject: [Full-disclosure] Private Camera Pro v5.0 iOS - Multiple Web Vulnerabilities
- From: Vulnerability Lab <research@xxxxxxxxxxxxxxxxxxxxx>
- Date: Tue, 25 Feb 2014 12:26:50 +0100
Document Title:
===============
Private Camera Pro v5.0 iOS - Multiple Web Vulnerabilities
References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1216
Release Date:
=============
2014-02-24
Vulnerability Laboratory ID (VL-ID):
====================================
1216
Common Vulnerability Scoring System:
====================================
8.1
Product & Service Introduction:
===============================
Private Camera is an iPhone and iPad camera app that could protect your
privacy. It supports taking photos and recording videos, password
lock protect, Fake password guest mode, share photos anytime and anywhere. Take
photos and videos quick and easily. Support autofocus,
tap to focus, flash light switch, camera switch, brand new UI, easy to use.
Support taking still photo and recording video. Switch the
video and photo mode one click. Create, rename, delete album, set album cover.
Add photos to Album, remove photos from Album. Multiple photos
can be handled at a time, you can import photos from system camera roll, export
photos to system camera roll, add photos to album, remove photos
from album, delete multiple photos. Wi-Fi web access for photos upload, you can
upload many photos from computer to iPhone or iPad in one shot.
With iOS 5, Private Camera can sync all your photos and videos on your iCloud
account, you can access these photos & videos on all your iOS
devices, use and share these photos & videos anytime, everywhere. Protect
photos and videos that you don’t want to share. User requires enter
password when access the photos/videos library. Share photos and videos on
Twitter, Facebook, Email with your friends.
With Password-lock functionality, can protect your personal photos and videos.
Its unique Pseudo-password(decoy-password) guest mode,
can cope with annoying friends from seeing your private photos and videos. With
easy to use camera features, let you using iPhone or
iPad take photos & videos and enjoy your photography life!
( Copy of the Homepage:
https://itunes.apple.com/us/app/private-camera-photo-vault/id477970594 )
( Copy of the Homepage:
https://itunes.apple.com/us/app/private-camera-pro-photo-vault/id473538611 )
Abstract Advisory Information:
==============================
The Vulnerability Laboratory Research Team discovered multiple web
vulnerabilities in the official Private Camera Pro v5.0 iOS mobile
web-application.
Vulnerability Disclosure Timeline:
==================================
2014-02-24: Public Disclosure (Vulnerability Laboratory)
Discovery Status:
=================
Published
Affected Product(s):
====================
Apple AppStore
Product: Private Camera Pro - iOS Web Application 5.0
Exploitation Technique:
=======================
Remote
Severity Level:
===============
High
Technical Details & Description:
================================
1.1
A local file include vulnerability has been discovered in the official Private
Camera Pro v5.0 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 web-application/device.
The vulnerability is located in the upload module of the mobile web-application
web-interface. Remote attackers can
manipulate the `upload > submit` POST method request with the vulnerable
`filename` value to compromise the application
or connected device components. The issue allows remote attackers to include
local app path values or wifi web-server files.
The exploitation appears on the application-side and the inject request method
is POST. The exection occurs in the main index
file dir list. The security risk of the local file include web vulnerability is
estimated as high with a cvss (common vulnerability
scoring system) count of 7.2(+)|(-)7.3.
Exploitation of the local file include vulnerability requires no user
interaction or privileged mobile application user account.
Successful exploitation of the file include web vulnerability results in mobile
application compromise, connected device compromise
or web-server compromise.
Request Method(s):
[+] POST
Vulnerable Module(s):
[+] Upload (UI) & Import (Device Sync)
Vulnerable Parameter(s):
[+] filename
Affected Module(s):
[+] File Dir Index Listing
1.2
A local command/path injection web vulnerabilities has been discovered in the
official Private Camera Pro v5.0 iOS mobile web-application.
A command inject vulnerability allows attackers to inject local commands via
vulnerable system values to compromise the apple mobile iOS application.
The vulnerability is located in the vulnerable `[devicename] (srvName)` value
of the device-info module. Local attackers are able to inject own malicious
system specific commands or path value requests as the physical iOS hardware
devicename. The execution of the injected command or path request occurs with
persistent attack vector in the device-info listing module of the web
interface. The security risk of the local command/path inject vulnerability is
estimated
as high(-) with a cvss (common vulnerability scoring system) count of
6.5(+)|(-)6.6.
Exploitation of the command/path inject vulnerability requires a low privileged
iOS device account with restricted access and no user interaction.
Successful exploitation of the vulnerability results in unauthorized execution
of system specific commands and unauthorized path value requests to
compromise the mobile iOS application or the connected device components.
Request Method(s):
[+] POST
Vulnerable Module(s):
[+] Content > header-title
Vulnerable Parameter(s):
[+] devicename
Affected Module(s):
[+] Index- File Dir Listing
[+] Sub Folder/Category - File Dir Listing
1.3
A persistent input validation vulnerability has been discovered in the
official Private Camera Pro v5.0 iOS mobile web-application.
A persistent input validation vulnerability allows remote attackers to inject
own malicious script codes on the application-side
of the affected application web-server.
The vulnerability is located in the add `New Album` input field. The
vulnerability allows remote attackers to inject
own malicious script codes on the application-side of the index path/folder
listing. The script code execute occurs
in the index `Albums Index` listing with the vulnerable album_title parameter.
The inject can be done local by the device
via add album sync function or remote by an inject via upload in the
web-interface. The attack vector is persistent and
the injection request method is POST. The security risk of the persistent input
validation web vulnerability in the
albumtitle value is estimated as high(-) with a cvss (common vulnerability
scoring system) count of 4.2(+)|(-)4.3.
Exploitation of the persistent script code inject vulnerability via POST method
request requires low user interaction
and no privileged web-interface user account. Only the sync add album sync
function of the reproduce via device requires
physical access.
Request Method(s):
[+] POST
Vulnerable Module(s):
[+] Albums Add (UI) & Import (Snyc Device)
Vulnerable Module(s):
[+] album_title
Affected Module(s):
[+] Album Index & Sub Category Index
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 information and steps below to continue.
PoC: Albums
<div class="btn btn-mini directDownload" title="Download
photo">Download</div></div></li><li class="span2 thumbnail_warp">
<div class="thumbnail_image"><a
href="http://192.168.2.109/origins/PC_20140223160359211.jpg"; class="thumbnail"
w="480" h="320"
t="0" u="PC_20140223160359211.jpg"><img style="display: block;"
src="Default%20Album_filename-Dateien/PC_20140223160359211.jpg"
data-original="/photos/thumbnails/PC_20140223160359211.jpg"
class="photo_image"><div class="inner_icons"> </div></a>
<div class="thumbnail_overlay"><img style="display: none;"
src="Default%20Album_filename-Dateien/zoomout_icon.png"
class="zoomout_icon" title="origin photo"></div></div><div style="display:
none;" class="photo-edit-bar"><label class="checkbox inline">15<input
id="15" name="0" value="./[LOCAL FILE INCLUDE VULNERABILITY!].jpg"
type="checkbox"></label><div class="btn btn-mini directDownload"
title="Download photo">Download</div></div></li></ul></div>
--- PoC Session Logs [POST] ---
Status: 200[OK]
POST http://localhost/asset/addAsset Load Flags[LOAD_BYPASS_CACHE ] Größe des
Inhalts[462] Mime Type[application/json]
Request Header:
Host[localhost]
User-Agent[Mozilla/5.0 (Windows NT 6.3; WOW64; rv:27.0) Gecko/20100101
Firefox/27.0]
Accept[application/json, text/javascript, */*; q=0.01]
Accept-Language[de-de,de;q=0.8,en-us;q=0.5,en;q=0.3]
Accept-Encoding[gzip, deflate]
X-Requested-With[XMLHttpRequest]
Referer[http://localhost/]
Content-Length[24791]
Content-Type[multipart/form-data;
boundary=---------------------------27557158176485]
Connection[keep-alive]
Pragma[no-cache]
Cache-Control[no-cache]
POST-Daten:
POST_DATA[-----------------------------27557158176485
Content-Disposition: form-data; name="params"
name:Default%20Album|url:82A29591-4E94-4313-B4A6-B527A1A551AE|id:SYS_ALBUM_DEFAULT
-----------------------------27557158176485
Content-Disposition: form-data; name="files[]"; filename="./[LOCAL FILE INCLUDE
VULNERABILITY!]"
Content-Type: image/jpeg
1.2
The local command inject web vulnerability can be exploited by remote attackers
with physical device access and without user interaction.
For security demonstration or to reproduce the vulnerability follow the
provided information and steps below to continue.
PoC: Device Info > device_info_list > srvname > device-info > [devicename]
(srvName)
<div aria-hidden="false" style="display: block;" id="modal_serverInfo"
class="modal hide fade in">
<div class="modal-header">
<a class="close" data-dismiss="modal">×</a>
<h4>Device info</h4>
</div>
<div class="modal-body">
<ul class="device_info_list">
<li>Name:<span id="srvName"
class="device-info">bkm337¥"><%20"./[LOCAL COMMAND INJECT
VULNERABILITY!]"><if></span></li>
<li>Model:<span id="srvModel" class="device-info">iPad 4
(WiFi)</span></li>
<li>iOS Version:<span id="srvVer"
class="device-info">7.0.6</span></li>
<li>Free Space:<span id="srvFree" class="device-info">9.993
GB</span></li>
<li>Support Video:<span id="srvSupported" class="device-info">MOV,
M4V, MP4</span></li>
</ul>
</div>
<div class="modal-footer">
<a href="#" class="btn" data-dismiss="modal">Close</a>
</div>
</div>
Note: Inject your payload as iOS devicename (phone or ipad). The execution
occurs in the device-info section of the web-interface.
1.2
The persistent input validation web vulnerability can be exploited by remote
attackers with low privileged application user account and
low user interaction. For security demonstration or to reproduce the
vulnerability follow the provided information and steps below to continue.
PoC: File Dir Index > album_title
<div class="span12 content-body index_page" id="indexDropbox"><ul
class="thumbnails" id="albums"><li class="album_warp">
<a href="#" n="Default%20Album" u="SYS_ALBUM_DEFAULT" albumtype="1"
editable="true" class="thumbnail thumbnailAlbum">
<img src="Albums_foldername-Dateien/SYS_ALBUM_DEFAULT.jpg"
class="album_image"><h5 class="album_title">Default Album</h5>
<p class="album_desc 1">15 Photos</p></a></li><li class="album_warp"><a
href="#" n="%20">[PERSISTENT INJECTED SCRIPT CODE!]"
u="E2569E17-2254-46D9-992C-82833B92F535" albumtype="0" editable="true"
class="thumbnail thumbnailAlbum">
<img src="Albums_foldername-Dateien/E2569E17-2254-46D9-992C-82833B92F535.jpg"
class="album_image">
<h5 class="album_title">><%20">[PERSISTENT INJECTED SCRIPT CODE!]">
"><%20">[PERSISTENT INJECTED SCRIPT CODE!]></h5>
<p class="album_desc 0">7
Photos</p></a></li></iframe></h5></a></li></ul></div>
Note: Use the sync function when processing to import to inject the persistent
code to the file dir index of the web-interface.
Solution - Fix & Patch:
=======================
1.1
The local file include web vulnerability can be patched by a secure parse and
validation of the filename value in the upload file POst method request.
1.2
The local command inject web vulnerability can be fixed by a secure encode of
the vulnerable devicename value in the service information module.
1.3
The persistent input validation web vulnerability can be patched by a secure
parse and encode of the vulnerable albumname value.
Restrict the albumname add and rename function to prevent further persistent
script code injects via 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 local command inject web vulnerability is estimated as
high(-).
1.3
The security risk of the persistent input validation web vulnerability is
estimated as medium(+).
Credits & Authors:
==================
Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri
(bkm@xxxxxxxxxxxxxxxxx) [www.vulnerability-lab.com]
Disclaimer & Information:
=========================
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