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Vulnerability Laboratory [Research Team] - Katharin S. L. (CH) ([email protected]) [www.vulnerability-lab.com]VULNERLAB:1477HistoryMay 05, 2015 - 12:00 a.m.
vPhoto-Album v4.2 iOS - File Upload Web Vulnerability
2015-05-0500:00:00
Vulnerability Laboratory [Research Team] - Katharin S. L. (CH) ([email protected]) [www.vulnerability-lab.com]
www.vulnerability-lab.com
9
Document Title:
===============
vPhoto-Album v4.2 iOS - File Upload Web Vulnerability
References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1477
Release Date:
=============
2015-05-05
Vulnerability Laboratory ID (VL-ID):
====================================
1477
Common Vulnerability Scoring System:
====================================
6.2
Product & Service Introduction:
===============================
vPhoto Pro is your side of the most powerful local album management software that allows you to easily manage your massive photos,
while giving you an unprecedented user experience. No in-app purchase, no functional limitations.
(Copy of the Homepage: https://itunes.apple.com/us/app/veryphoto-album-password-wifi/id720810114 )
Abstract Advisory Information:
==============================
The Vulnerability Laboratory Research team discovered a file upload web vulnerability in the official vPhoto-Album v4.2 iOS mobile web-application.
Vulnerability Disclosure Timeline:
==================================
2015-05-05: Public Disclosure (Vulnerability Laboratory)
Discovery Status:
=================
Published
Affected Product(s):
====================
Cheng Chen
Product: vPhoto-Album - iOS Web Application (Wifi) 4.1
Exploitation Technique:
=======================
Remote
Severity Level:
===============
Medium
Technical Details & Description:
================================
An unrestricted file upload web vulnerability has been discovered in the official vPhoto-Album v4.2 iOS mobile web-application.
The file upload vulnerability allows remote attackers to upload an arbitrary (malicious) file to compromise the iOS web-application.
The file upload vulnerability is located in the `name` value of the `Albums` module. Remote attackers are able to intercept the
vulnerable name value in the upload POST method request to compromise the app path. The attacker can use a live session tamper in
http to change the album name parameter to a malicious source.
The security risk of the file upload vulnerability is estimated as high with a cvss (common vulnerability scoring system) count of 6.2.
Exploitation of the web vulnerability requires no user interaction or privileged web-application user account. Successful exploitation
of the local file upload web vulnerability results in mobile iOS web-application compromise or compromise of connected device components.
Vulnerable Method(s):
[+] [Sync]
Vulnerable Module(s):
[+] Albumname
Vulnerable Parameter(s):
[+] name
Affected Module(s):
[+] File Dir Index
Proof of Concept (PoC):
=======================
The unrestricted file upload web vulnerability can be exploited by attackers with restricted physical device access and without user interaction.
For security demonstration or to reproduce the security vulnerability follow the provided information and steps below to continue.
PoC: http://localhost:8080/
<script type="text/javascript">
var albumArray = getAllAlbum();
var numberOfAlbums = getNumberOfAlbums();
for (var i=0; i<numberOfAlbums; i=i+4)
{
document.write("<tr>");
document.write("<td height="170" width="150">");
if (i+0 < numberOfAlbums)
{
document.write("<p align="center"><img border="0" src="getCoverImage?"+encodeURI(JSON.stringify(albumArray[i+0]))+"" width="170" height="150" onclick=albumClick('"+(i+0)+"')>");
}
document.write("</td>");
document.write("<td height="170" width="50"></td>");
document.write("<td height="170" width="150">");
if (i+1 < numberOfAlbums)
{
document.write("<p align="center"><img border="0" src="getCoverImage?"+encodeURI(JSON.stringify(albumArray[i+1]))+"" width="170" height="150" onclick=albumClick('"+(i+1)+"')>");
}
document.write("</td>");
document.write("<td height="170" width="50"></td>");
document.write("<td height="170" width="150">");
if (i+2 < numberOfAlbums)
{
document.write("<p align="center"><img border="0" src="getCoverImage?"+encodeURI(JSON.stringify(albumArray[i+2]))+"" width="170" height="150" onclick=albumClick('"+(i+2)+"')>");
}
document.write("</td>");
document.write("<td height="170" width="50"></td>");
document.write("<td height="170" width="150">");
if (i+3 < numberOfAlbums)
{
document.write("<p align="center"><img border="0" src="getCoverImage?"+encodeURI(JSON.stringify(albumArray[i+3]))+"" width="170" height="150" onclick=albumClick('"+(i+3)+"')>");
}
document.write("</td>");
document.write("</tr>");
document.write("<tr>");
document.write("<td height="20" > <p align="center">");
if (i+0 < numberOfAlbums)
{
document.write("<font face="Courier New" size="2">");
document.write(albumArray[i+0].name+"("+albumArray[i+0].numberOfImage+")");
document.write("</font>");
}
document.write("</td>");
document.write("<td height="20" width="50"></td>");
document.write("<td height="20" > <p align="center">");
if (i+1 < numberOfAlbums)
{
document.write("<font face="Courier New" size="2">");
document.write(albumArray[i+1].name+"("+albumArray[i+1].numberOfImage+")");
document.write("</font>");
}
document.write("</td>");
document.write("<td height="20" width="50"></td>");
document.write("<td height="20" > <p align="center">");
if (i+2 < numberOfAlbums)
{
document.write("<font face="Courier New" size="2">");
document.write(albumArray[i+2].name+"("+albumArray[i+2].numberOfImage+")");
document.write("</font>");
}
document.write("</td>");
document.write("<td height="20" width="50"></td>");
document.write("<td height="20" > <p align="center">");
if (i+3 < numberOfAlbums)
{
document.write("<font face="Courier New" size="2">");
document.write(albumArray[i+3].name+"("+albumArray[i+3].numberOfImage+")");
document.write("</font>");
}
document.write("</td>");
document.write("</tr>");
document.write("<tr>");
document.write("<td height="20" colspan="7">"); document.write("</td>");
document.write("</tr>");
}
</script>
<tr><td height="170" width="150"><p align="center">
<img src="getCoverImage?%7B%22name%22:../not_allowed_dirctory/newfile.*%3E%22,%22type%22:%222%22,%22groupType%22:2,%22url
%22:%22assets-library://group/?id=B94CC6C9-FB2C-4BFD-8BA4-0925E51146A1&filter=1537%22,%22numberOfImage%22:%222%22%7D" onclick="albumClick('0')"
border="0" height="150" width="170"></p></td><td height="170" width="50"></td><td height="170" width="150"><p align="center">
<img src="getCoverImage?%7B%22name%22:%22Camera%20Roll%22,%22type%22:%222%22,%22groupType%22:16,%22url%22:%22
assets-library://group/?id=70169F06-36C7-430C-AA4F-55B95E268426%22,%22numberOfImage%22:%222%22%7D" onclick="albumClick('1')"
border="0" height="150" width="170"></p></td><td height="170" width="50"></td><td height="170" width="150"></td><td height="170"
width="50"></td><td height="170" width="150"></td></tr><tr><td height="20"> <p align="center"><font face="Courier New" size="2">">
<C[FILE INCLUDE VULNERABILITY!]>(2)</font></td><td height="20" width="50"></td><td height="20" > <p align="center"><font face="Courier New"
size="2">Camera Roll(2)</font></td><td height="20" width="50"></td><td height="20" > <p align="center"></td><td height="20" width="50"></td>
<td height="20" > <p align="center"></td></tr><tr><td height="20" colspan="7"></td></tr>
</table></div></body>
</html></iframe></font></p></td></tr></tbody>
Reference(s):
http://localhost:8080/
http://localhost:8080/index
Security Risk:
==============
The security risk of the unrestricted file upload web vulnerability in the album module is estimated as high. (CVSS 6.2)
Credits & Authors:
==================
Vulnerability Laboratory [Research Team] - Katharin S. L. (CH) ([email protected]) [www.vulnerability-lab.com]
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=========================
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