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Title:
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======
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SimpleTransfer 2.2.1 - Command Injection Vulnerabilities
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Date:
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=====
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2013-05-03
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References:
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===========
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http://www.vulnerability-lab.com/get_content.php?id=937
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VL-ID:
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=====
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937
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Common Vulnerability Scoring System:
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====================================
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5.6
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Introduction:
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=============
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Simple Transfer is the easiest way of transferring your Photos and Videos to computer and other iOS devices via WiFi.
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No need for cable, iTunes or extra software.
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* View all your photo albums and videos on your computer and download them as zip file via WiFi
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* Send multiple photos and videos from your computer to your device
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* Transfer any number of photos and videos between iOS devices (iPhone, iPad and iPod Touch),
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select an album and tap on ``Select All`` to transfer all your photos/videos
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* Ability to create new albums and transfer to photos/videos to other albums
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* Photos are transferred with full resolution including metadata and videos transferred with the highest quality
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* No limit on the number or size of the photos/videos you transfer between devices or computers
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* Slideshow photo albums on your computer`s browser
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* Pay only once to install the app on all your iOS devices (iPhone, iPad and iPod Touch)
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* Works on Windows, Mac and Linux and it`s fast!
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(Copy of the Homepage: https://itunes.apple.com/de/app/simple-transfer/id411292121 )
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Abstract:
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=========
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The Vulnerability Laboratory Research Team discovered multiple local command injection vulnerabilities in the mobile Simple-Transfer Photo 2.2.1 iOS app (Apple - iPad|iPhone).
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Report-Timeline:
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================
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2013-05-03: Public Disclosure
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Status:
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========
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Published
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Affected Products:
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==================
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Apple AppStore
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Product: SimpleTransfer Photo iOS 2.2.1
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Exploitation-Technique:
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=======================
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Local
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Severity:
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=========
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High
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Details:
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========
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Multiple local command injection web vulnerabilities are detected in the mobile SimpleTransfer Photo 2.2.1 iOS app (Apple - iPad|iPhone).
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The vulnerability allows to inject local commands via vulnerable system values to compromise the apple mobile iOS application.
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The first vulnerability is located in the index module when processing to load the unique ipad or iphone device name.
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Local attackers can change the ipad or iphone device name to system specific commands and file requests to provoke
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the execution when processing to watch the main index photo listing. The execution of the script code occurs in the
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header were the device name web context is located when processing to display the device name in the index listing.
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The secound vulnerability is located in the index module when processing to load the ipad or iphone photo album folder names.
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Local attackers can change the ipad or iphone photo album names to system specific commands and file requests to provoke
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the execution when processing to watch the main index album listing. The execution of the script code occurs in the album
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folder name web context when processing to display the vulnerable name value listing.
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Exploitation of the web vulnerability requires an application user account (standard) and low or medium user interaction.
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Successful exploitation of the vulnerability results unauthorized execution of system specific commands and file or path requests.
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Vulnerable Application(s):
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[+] SimpleTransfer Photo 2.2.1 - ITunes or AppStore (Apple)
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Vulnerable Parameter(s):
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[+] Device Name
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[+] Album Folder/Path Name
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Affected Module(s):
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[+] Index Listing - Header
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[+] Album Listing - Name
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Proof of Concept:
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=================
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1.1 PoC: Device Name - Index
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<html xmlns="http://www.w3.org/1999/xhtml"><head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=7">
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<title>iPad 360 <20>337%20>"<../[LOCAL COMMAND INJECTION VULNERABILITY]\'></title>
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<link href="index_files/jquery-ui-1.css" type="text/css" rel="stylesheet">
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<link href="index_files/default.css" rel="stylesheet" type="text/css" media="screen">
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<link href="index_files/uploadify.css" rel="stylesheet" type="text/css" media="screen">
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<script type="text/javascript" src="index_files/jquery-1.js"></script>
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<script type="text/javascript" src="index_files/jquery-ui-1.js"></script>
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<script type="text/javascript" src="index_files/jquery.js"></script>
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<script type="text/javascript">
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Local Device Name Command Inject: (http://localhost/rambax/)
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1.2 PoC: Album Name - Photo Listing
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<div id="page-title">Sky Lounge%20>"../[LOCAL COMMAND INJECTION VULNERABILITY]\' src="D64E64A5-7C0B-4530-B4F5-7406D5BDF168_files/LOACAL.htm">
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<span>(4)</span></div>
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</td>
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<td align="right" style="width: 20%;">
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<div id="header-links">
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<ul>
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<li><a href="/" title="Home">Back to
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Albums</a></li>
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Local Album Name Command Inject: (http://localhost:8080/rambax/album/D64E64A5-7C0B-4530-B4F5-7406D5BDF168)
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Solution:
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=========
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The vulnerabilities can be patched by a secure parse of the album name and device name parameter.
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Encode the strings and set an own exception-handling to prevent against future command injection attacks.
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Risk:
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=====
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The security risk of the local command injection web vulnerabilities are estimated as high(-).
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Credits:
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========
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Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (bkm@vulnerability-lab.com) [www.vulnerability-lab.com]
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Disclaimer:
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===========
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The information provided in this advisory is provided as it is without any warranty. Vulnerability-Lab disclaims all warranties,
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either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-
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Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business
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profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some
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states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation
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may not apply. We do not approve or encourage anybody to break any vendor licenses, policies, deface websites, hack into databases
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or trade with fraud/stolen material.
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Copyright <20> 2013 | Vulnerability Laboratory
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--
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VULNERABILITY RESEARCH LABORATORY
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LABORATORY RESEARCH TEAM
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CONTACT: research@vulnerability-lab.com |