iPic Sharp 1.2.1 Wifi Script Insertion

Type packetstorm
Reporter Benjamin Kunz Mejri
Modified 2013-07-24T00:00:00


iPic Sharp v1.2.1 Wifi iOS - Persistent Foldername Web Vulnerability  
Common Vulnerability Scoring System:  
iPic Sharp Pro is a photos/video management app,can manage your photos/video into folders and subfolders,   
Compress photos/folders into zip file and extract photos from a compressed (zip/rar), Use password protect   
your files, and transfer photos/(zip/rar) between computer and your devices.  
Password protect  
Password lock entire app  
Password lock wifi  
Password lock individual folder  
View Photos  
Photo gallery  
Slide show  
Thumbnail preview  
View Photos app  
File Sharing  
USB File Sharing via iTunes  
Http File Sharing via WiFi, Support Safari, chrome, firefox and IE6/7/8/9 (Slide show )  
Chrome and Firefox Supported upload multiple files  
Email multiple files, folder Supported  
Extract photos from a compressed zip/rar file  
Compression files/folders to zip file  
Archives rename, email, batch  
( Copy of the Homepge: https://itunes.apple.com/en/app/ipic-sharp-pro/id449820537 )  
The Vulnerability Laboratory Research Team discovered a persistent input validation vulnerability in the iPic Sharp v1.2.1 application (Apple iOS - iPad & iPhone).  
2013-07-24: Public Disclosure (Vulnerability Laboratory)  
Affected Products:  
Apple AppStore  
Product: iPic Sharp - Application 1.2.1  
A persistent input validation web vulnerability is detected in the iPic Sharp v1.2.1 application (Apple iOS - iPad & iPhone).  
The bug allows an attacker (remote) to implement/inject malicious script code to the application side (persistent) of the device.  
The vulnerability is located in the index file dir listing module of the web-server (http://localhost:41493) when processing to   
request via POST method local manipulated `album folder names`. The persistent script code will be executed in the main   
index file dir listing module when the service lists the new malicious injected foldername as separate item. Attackers can locally   
change the normal album names inside of the apple iOS device (ipad or iphone) to execute the code when a user is requesting the   
mobile application index with the foldername listing.  
Exploitation of the persistent web vulnerability requires low user interaction and a local privilege application & device account.  
Successful exploitation of the vulnerability can lead to persistent session hijacking (customers), account steal via persistent   
web attacks, persistent phishing or stable (persistent) certificate mail notification context manipulation.  
Vulnerable Application(s):  
[+] iPic Sharp v1.2.1 - ITunes or AppStore (Apple)  
Vulnerable Module(s):  
[+] Index  
Vulnerable Parameter(s):  
[+] foldername  
Affected Module(s):  
[+] Index File Dir - Foldername Listing  
Proof of Concept:  
The persistent input validation web vulnerability can be exploited by local attackers with low user interaction and no privilege   
mobile web application user account. For demonstration or reproduce ...  
PoC: Root Parameter  
Roll','isdir'1,'id'0,'filesize'0,'modDate''','url''(null)','section''PhotoSharp_System_Photo','localsection''System Photos','ispass'0}]},  
{'PhotoSharp_Local_Photo'[{'name''.[PERSISTENT INJECTED SCRIPT CODE!]','isdir'1,'id'0,'filesize'102,'modDate''2013-07-20   
145009','url''','section''PhotoSharp_Local_Photo','localsection''Local Photos','ispass'0}]},  
,'section''PhotoSharp_Local_Document','localsection''[PERSISTENT INJECTED SCRIPT CODE!]','ispass'0}]}],'dir''','dirlocal'''}  
PoC: Source  
<tr><td class="photoTd" classname="photoTd"><div id="PhotoSharp_System_Photo_0" class="watermarkStart"   
classname="watermarkStart"><a href="javascript:loadDir('%2Fu%2FCamera%2520Roll%3FisSystem%3D1','PhotoSharp_System_Photo_0',  
'%2Fu%2FCamera%2520Roll');"><img src="iPic%20Sharp_files/Camera%2520Roll_75_75.jpg" id="img_PhotoSharp_System_Photo_0"   
realurl="(null)" class="logoStart" classname="logoStart"></a><span class="spanAlbum" classname="spanAlbum">Camera Roll</span></div></td>  
<td class="photoTd" classname="photoTd"><div id="PhotoSharp_Local_Photo_0" class="watermarkStart" classname="watermarkStart">  
<a href="javascript:loadDir('%2Fu%2F.Default%2520Album%3FisSystem%3D0','PhotoSharp_Local_Photo_0','%2Fu%2F.[PERSISTENT INJECTED SCRIPT CODE!]');">  
<img src="[PERSISTENT INJECTED SCRIPT CODE!]/a.jpg" id="img_PhotoSharp_Local_Photo_0" realurl="" class="logoStart" classname="logoStart"></a>  
<span class="spanAlbum" classname="spanAlbum">Default Album</span></div></td><td class="photoTd" classname="photoTd">  
<div id="PhotoSharp_Local_Document_0" class="watermarkStart" classname="watermarkStart">  
<a href="javascript:loadDir('%2Fu%2FPhotoSharp_Local_Document%3FisSystem%3D0','PhotoSharp_Local_Document_0','%2Fu%2FPhotoSharp_Local_Document');">  
<img src="iPic%20Sharp_files/PhotoSharp_Local_Document_75_75.jpg" id="img_PhotoSharp_Local_Document_0" realurl=""   
class="logoStart" classname="logoStart"></a><span class="spanAlbum" classname="spanAlbum">[PERSISTENT INJECTED SCRIPT CODE!]</span></div></td>  
<td class="photoTd" classname="photoTd"></td><td class="photoTd" classname="photoTd"></td><td class="photoTd" classname="photoTd"></td>  
<td class="photoTd" classname="photoTd"></td><td class="photoTd" classname="photoTd"></td><td class="photoTd" classname="photoTd"></td>  
<td class="photoTd" classname="photoTd"></td></tr>  
The vulnerability can be patched by a secure encoding of the foldername item input.  
Encode, Filter or parse also the affected output at the file dir index listing location when processing to display the item foldername.  
The security risk of the persistent input validation web vulnerability is estimated as medium.  
Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (bkm@evolution-sec.com)  
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