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7.3 KiB
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Document Title:
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===============
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PhotoWebsite v3.1 iOS - File Include Web Vulnerability
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References (Source):
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====================
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http://www.vulnerability-lab.com/get_content.php?id=1474
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Release Date:
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=============
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2015-05-04
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Vulnerability Laboratory ID (VL-ID):
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====================================
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1476
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Common Vulnerability Scoring System:
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====================================
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6.6
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Product & Service Introduction:
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===============================
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Photo Website lets your Camera Roll to become a website. The app let the iphone/ipad become a website. It is a wifi network app，
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let you access camera roll photos over your pc browser. Now share Camera Roll to your friend is a very simple event.
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Fast browsing of thumbnails
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(https://itunes.apple.com/de/app/photo-website/id543436097)
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Abstract Advisory Information:
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==============================
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The Vulnerability Laboratory Research Team discovered a locla file include vulnerability in the official PhotoWebsite v3.1 iOS mobile web-application.
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Vulnerability Disclosure Timeline:
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==================================
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2015-05-04: 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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AirPhoto
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Product: PhotoWebsite - iOS Mobile Web Application 3.1
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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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A local file include web vulnerability has been discovered in the official PhotoWebsite v3.1 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
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system specific path commands to compromise the mobile web-application.
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The web vulnerability is located in the `mDirNameList` and `mDirUrlList` values of the `airphotos.ma - upload` module. Remote attackers are
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able to inject own files with malicious `mDirNameList` values in the `upload.action` sync request to compromise the mobile web-application.
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The local file/path include execution occcurs in the index file dir listing of the wifi interface. The attacker is able to inject the local
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file include request by usage of the `wifi interface` in connection with the vulnerable upload service module.
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Remote attackers are also able to exploit the `mDirNameList` and `mDirUrlList` validation issue in combination with persistent injected script
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codes to execute unique local malicious attack requests. The attack vector is located on the application-side of the wifi service and the
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request method to inject is POST (upload) or Sync(device). To exploit the bug it is required to use the local device > wifi sync or (remote)
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the wifi gui.
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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) count of 6.6.
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Exploitation of the local file include vulnerability requires no user interaction or privileged web-application user account. Successful exploitation
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of the local file include web vulnerability results in mobile application or device compromise.
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Request Method(s):
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[+] Sync
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Vulnerable Module(s):
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[+] upload
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Vulnerable File(s):
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[+] airphotos.ma
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Vulnerable Parameter(s):
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[+] mDirNameList
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[+] mDirUrlList
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Affected Module(s):
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[+] File Dir Index
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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 local attackers without privileged application user account or user interaction.
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For security demonstration or to reproduce the security vulnerability follow the provided information and steps below to continue.
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PoC: airphotos.ma
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<script language= "JavaScript" type= "text/javascript">
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var mImgList =[];
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var mWidthList= [];
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var mHeightList= [];
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var mThumWidth=144
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var mDirNameList=["">[LOCAL FILE INCLUDE VULNERABILITY!]",
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"Camera Roll",
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"My Photo Stream",
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];
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var mDirUrlList=["@%22%3E%3C[LOCAL FILE INCLUDE VULNERABILITY!]%3E%5C",
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"@Camera%20Roll%5C",
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"@My%20Photo%20Stream%5C",
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];
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var mUserWH=true;;
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var mUseApShow=false;;
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</script>
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Reference(s):
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http://localhost:1860/airphotos.ma
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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 `mDirNameList` and `mDirUrlList` values.
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Restrict the input for folder and album names on sync and disallow special chars.
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Encode the file dir index list that shows the malicious context without secure parse to prevent further file include or request injection attacks.
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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 photowebsite wifi app is estimated as high. (CVSS 6.6)
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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 expressed
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or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-Lab or its suppliers are not liable
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in any case of damage, including direct, indirect, incidental, consequential loss of business profits or special damages, even if Vulnerability-Lab
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or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for
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consequential or incidental damages so the foregoing limitation may not apply. We do not approve or encourage anybody to break any vendor licenses,
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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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Copyright © 2015 | Vulnerability Laboratory - [Evolution Security GmbH]™
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--
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VULNERABILITY LABORATORY - RESEARCH TEAM
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SERVICE: www.vulnerability-lab.com
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