208 lines
9.9 KiB
Text
Executable file
208 lines
9.9 KiB
Text
Executable file
Document Title:
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===============
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NG WifiTransfer Pro 1.1 - File Include Vulnerability
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References (Source):
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====================
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http://www.vulnerability-lab.com/get_content.php?id=1260
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Release Date:
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=============
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2014-04-28
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Vulnerability Laboratory ID (VL-ID):
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====================================
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1260
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Common Vulnerability Scoring System:
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====================================
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6.5
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Product & Service Introduction:
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===============================
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The easiest way to transfer files between iPhones or with computers! WifiTransfer enables fast wireless file transfer between
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iPhones or with computers with a simple scan. WifiTransfer enables simple and ultra fast file transfer between iPhones over
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Wi-Fi networks. Without any additional setup, just a QRCode scan will do. The target iPhone doesn`t have to install WifiTransfer.
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An iPhone with an ARBITRARY scanner will do. (However, with WifiTransfer installed on the target iPhone, you will have better
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control on the transfer process.) In addition to transfer files between iPhone/iPad, you can also remotely manage files on your
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iPhone right from your desktop computer. Supported browsers: Safari, Chrome, FireFox, Internet Explorer.
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(Copy of the Homepage: https://itunes.apple.com/us/app/wifitransfer-pro-instant-file/id802094784 )
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Abstract Advisory Information:
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==============================
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The Vulnerability Laboratory Research Team discovered multiple vulnerabilities in the official Notable Group WifiTransfer Pro v1.1 iOS mobile web-application.
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Vulnerability Disclosure Timeline:
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==================================
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2014-04-28: Public Disclosure (Vulnerability Laboratory)
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Discovery Status:
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=================
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Published
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Affected Product(s):
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====================
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Notable Group
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Product: WifiTransfer Pro - iOS Mobile Application 1.1
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Exploitation Technique:
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=======================
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Local
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Severity Level:
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===============
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High
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Technical Details & Description:
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================================
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A local file include web vulnerability has been discovered in the official Notable Group WifiTransfer Pro v1.1 iOS mobile web-application.
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The local file include web vulnerability allows remote attackers to unauthorized include local file/path requests or system specific path
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commands to compromise the mobile web-application.
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The web vulnerability is located in the `filename` value of the `upload` module. Remote attackers are able to inject own files with malicious
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`filename` values in the `upload` POST method request to compromise the mobile web-application. The local file/path include execution occcurs
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in the `WifiTransfer File Management` listing context. The attacker is able to inject the local file include request by usage of the
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`wifi interface` or by a local privileged application user account via `file sync`(app).
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Remote attackers are also able to exploit the filename validation issue in combination with persistent injected script codes to execute different
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local malicious attacks requests. The attack vector is on the application-side of the wifi service and the request method to inject is POST. The security
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risk of the local file include web vulnerability is estimated as high with a cvss (common vulnerability scoring system) count of 6.5.
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Exploitation of the local file include web vulnerability requires no user interaction but a privileged web-application user account with low user auth.
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Successful exploitation of the local file include web vulnerability results in mobile application or connected device component compromise.
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Request Method(s):
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[+] [POST] - Remote
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[+] [SYNC] - Local
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Vulnerable Module(s):
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[+] WifiTransfer File Management (UI)
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Vulnerable Function(s):
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[+] Upload
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Vulnerable Parameter(s):
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[+] filename
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Affected Module(s):
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[+] Index File Dir Listing (http://localhost:8080/)
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Proof of Concept (PoC):
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=======================
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The local file include web vulnerability can be exploited by attackers without privileged application user account and low user interaction.
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For security demonstration or to reproduce the file include web vulnerability follow the provided information and steps below to continue.
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Manual steps to reproduce the vulnerability ...
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1. Install the vulnerable wifi ios software app (https://itunes.apple.com/us/app/wifitransfer-pro-instant-file/id802094784)
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2. Start the server and activate the localhost wifi server
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3. Open the wifi interface in a browser or console > http://localhost:8080/
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4. The the directory button to choose a file for a upload
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5. Activate a session tamper to capture the request information to intercept
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6. Click the upload button and inject your own path/file request inside of the filename value
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7. Open the interface in the browser and the execution occurs in the file dir item listing context
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8. Successful reproduce of the security vulnerability via wifi user interface!
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Note: The inject is also possible via sync
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1. Add a file in the device app interface
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2. Inject the path request as payload in combination with script code and save
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3. Activate the localhost wifi interface (web-server)
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4. Open the interface in the browser and the execution occurs in the file dir item listing context
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5. Successful reproduce of the security vulnerability via app sync!
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PoC:
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<table class="table table-hover" cellpadding="0" cellspacing="0" border="0">
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<thead>
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<tr><th>Name</th><th class="del">Action</th></tr>
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</thead>
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<tbody id="filelist">
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<tr><td><a href="/files/%3C./-[LOCAL FILE INCLUDE VULNERABILITY!].png" class="file"><img src="img/image.png" style="vertical-align:middle;"><span><./-[LOCAL FILE INCLUDE VULNERABILITY!].png.png</span></a></td><td class='del'><div><a href='/files/%3C./-[LOCAL FILE INCLUDE VULNERABILITY!].png' class='btn btn-info btn-sm'>Download</a><form action='/files/%3C./-[LOCAL FILE INCLUDE VULNERABILITY!].png' method='post'><input name='_method' value='delete' type='hidden'/><input name="commit" type="submit" value=" Delete " class='btn btn-danger btn-sm' /></div></td></tr></tbody></table></iframe></span></a></td></tr></tbody>
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</table>
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--- PoC Session Logs [POST] ---
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Status: 302[Found]
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POST http://localhost:8080/files Load Flags[LOAD_DOCUMENT_URI LOAD_INITIAL_DOCUMENT_URI ] Gr??e des Inhalts[67] Mime Type[text/html]
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Request Header:
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Host[localhost:8080]
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User-Agent[Mozilla/5.0 (Windows NT 6.3; WOW64; rv:28.0) Gecko/20100101 Firefox/28.0]
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Accept[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8]
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Accept-Language[de,en-US;q=0.7,en;q=0.3]
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Accept-Encoding[gzip, deflate]
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Referer[http://localhost:8080/]
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Connection[keep-alive]
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POST-Daten:
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POST_DATA[-----------------------------2128355697111
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Content-Disposition: form-data; name="newfile"; filename="./-[LOCAL FILE INCLUDE VULNERABILITY!].png"
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Content-Type: image/png
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Reference(s):
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http://localhost:8080/
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http://localhost:8080/files
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Solution - Fix & Patch:
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=======================
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The vulnerability can be patched by a secure parse and encode of the vulnerable filename input value in the upload POST method request.
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Filter and encode also the name value output in the wifi interface file dir listing.
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Setup a restriction of the filename input and disallow data names with special chars.
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Security Risk:
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==============
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The security risk of the local file include web vulnerability in the wifi interface is estimated as high.
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Credits & Authors:
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==================
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Vulnerability Laboratory [Research Team] - LariX4 (research@evolution-sec.com) [www.vulnerability-lab.com]
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Disclaimer & Information:
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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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Domains: www.vulnerability-lab.com - www.vuln-lab.com - www.evolution-sec.com
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Contact: admin@vulnerability-lab.com - research@vulnerability-lab.com - admin@evolution-sec.com
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Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability Laboratory.
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Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of other
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modify, use or edit our material contact (admin@vulnerability-lab.com or research@vulnerability-lab.com) to get a permission.
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Copyright ? 2014 | Vulnerability Laboratory [Evolution Security]
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--
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VULNERABILITY LABORATORY RESEARCH TEAM
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DOMAIN: www.vulnerability-lab.com
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CONTACT: research@vulnerability-lab.com
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