297 lines
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Executable file
297 lines
12 KiB
Text
Executable file
Document Title:
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===============
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Print n Share v5.5 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=1154
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Release Date:
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=============
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2013-12-06
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Vulnerability Laboratory ID (VL-ID):
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====================================
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1154
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Common Vulnerability Scoring System:
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====================================
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9.2
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Product & Service Introduction:
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===============================
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Print directly to the widest range of network or WiFi printers, without a computer or AirPrint! Alternatively print
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via your Mac/PC to ALL printers including USB & Bluetooth printers. Print... documents cloud files,web pages,emails,
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attachments, photos, contacts, calendars, clipboard items, convert to PDF and much more - to ANY PRINTER!
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(Copy of the Homepage: https://itunes.apple.com/en/app/print-n-share-der-all-in-one/id301656026
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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 Print n Share v5.5 mobile application for apple iOS.
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Vulnerability Disclosure Timeline:
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==================================
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2013-12-01: 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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EuroSmartz Ltd
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Product: Print n Share 5.5
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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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Critical
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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 Print n Share v5.5 mobile application for apple iOS.
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The file include vulnerability allows remote attackers to include (upload) local file or path requests to compromise the application or service.
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The remote file include web vulnerability is located in the import file module in the filename value. Remote attackers can inject own files or
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path requests by adding regular text files (add). It is also possible to use the `rename` or `import` function to inject. The file include and
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path request execute occurs in the main file dir index or subcategory listing of the mobile application. The security risk of the local file
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include web vulnerability is estimated as high(+) with a cvss (common vulnerability scoring system) count of 8.4(+).
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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 vulnerability results in unauthorized local file uploads and path requests to compromise the device or mobile app.
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Request Method(s):
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[+] [POST]
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Vulnerable Inputs(s):
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[+] Neue Text Datei (New Text File)
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[+] Umbenennen File (Rename File)
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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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1.2
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An arbitrary file upload web vulnerability has been discovered in the official Print n Share v5.5 mobile application for apple iOS.
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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 import file module. Remote attackers are able to upload a php or js web-shells by renaming the file with
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multiple extensions to bypass the file restriction mechanism. The attacker uploads for example a web-shell with the following name and extension
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`image.jpg.gif.js.php.jpg`. After the upload the attacker needs to open the file in the web application. He deletes the .jpg & . gif file
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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 7.8(+).
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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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[+] File Import
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Vulnerable Inputs(s):
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[+] Importieren - File > Sync
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Vulnerable Parameter(s):
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[+] filename (multiple extensions)
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Affected Module(s):
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[+] File Path Listing (http://localhost:8080)
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1.3
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A persistent input validation web vulnerability has been discovered in the official Print n Share v5.5 mobile application for apple iOS.
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The (persistent) vulnerability allows remote attacker to inject own malicious script code on the application-side of the mobile application.
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The persistent input validation vulnerability is located in the Ordername (foldername) value of the print n share mobile web-application.
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The exploitation can be done by usage of the local standard iOS pictures or video (default) app. Attackers rename the local device photo
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or video foldername.The persistent execute occurs in the listed folder of the web-server interface (http://localhost:8080). Remote attackers
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can also change the foldername by usage of the application to exploit (inject) via POST method own script code with persistent attack vector.
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The vulnerable input are the `Ordername`(folder name), `Neuer Order` (new folder) and `Order Umbenennen` (folder rename). The security risk
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of the persistent input validation web vulnerability is estimated as medium(+) with a cvss (common vulnerability scoring system) count of 4.5(+).
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Exploitation of the persistent input validation web vulnerability requires no privileged mobile application user account but low or medium
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user interaction. Successful exploitation of the persistent vulnerability results in persistent session hijacking (customers) attacks, account
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steal via persistent web attacks, persistent phishing or persistent manipulation of vulnerable module context.
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Request Method(s):
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[+] [POST]
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Vulnerable Input(s):
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[+] Ordnername - (Foldername)
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[+] Neuer Ordner - (New Folder)
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[+] Ordner Umbenennen - (Rename Folder)
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Vulnerable Parameter(s):
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[+] foldername - (path)
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Affected Module(s):
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[+] File Dir List
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Proof of Concept (PoC):
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=======================
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1.1
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The file include web vulnerability can be exploited by remote attackers without user interaction and also without privileged
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web-application user account. For security demonstration or to reproduce the vulnerability follow the steps and information below.
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PoC:
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http://localhost:8080/[LOCAL FILE INCLUDE WEB VULNERABILITY!]">X>"<<>"</[LOCAL FILE INCLUDE WEB VULNERABILITY!]">.php
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PoC Source: Local File Include Vulnerability - Filename
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<html><head>
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<title>/</title>
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<meta http-equiv="CONTENT-TYPE" content="text/html; charset=UTF-8">
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</head>
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<body>
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<h2>?/</h2><br><a href="/Clip-Archiv/">Clip-Archiv/</a>
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<br>X<a href="/[LOCAL FILE INCLUDE WEB VULNERABILITY!]">X>"<<>"</[LOCAL FILE INCLUDE WEB VULNERABILITY!]">.php</a>
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<br><a href="/[LOCAL FILE INCLUDE WEB VULNERABILITY!]">[LOCAL FILE INCLUDE WEB VULNERABILITY!].txt</a>
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</body>
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<html>
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</iframe></a></body></html>
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Reference(s):
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http://localhost:8080/
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1.2
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The arbitrary file upload vulnerability can be exploited by remote attackers without user interaction and also without privileged
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web-application user account. For security demonstration or to reproduce the vulnerability follow the steps and information below.
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PoC:
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http://localhost:8080/[file to path]">X>"<<>"</[ARBITRARY FILE UPLOAD WEB VULNERABILITY!]">.jpg.gif..html.js.php.gif.jpg
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PoC Source: Arbitrary File Upload Vulnerability - Filename
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<html><head>
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<title>/</title>
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<meta http-equiv="CONTENT-TYPE" content="text/html; charset=UTF-8">
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</head>
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<body>
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<h2>?/</h2><br><a href="/Clip-Archiv/">Clip-Archiv/</a>
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<br>X<a href="/[file]">X>"<<>"</[ARBITRARY FILE UPLOAD WEB VULNERABILITY!]">.jpg.gif..html.js.php.gif.jpg</a>
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<br><a href="/[file]">[ARBITRARY FILE UPLOAD WEB VULNERABILITY!].jpg.gif..html.js.php.gif.jpg</a>
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</body>
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<html>
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</iframe></a></body></html>
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Reference(s):
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http://localhost:8080/
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1.3
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The persistent input validation vulnerability can be exploited by remote attackers without privileged web-application user account
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and with low user interaction. For security demonstration or to reproduce the vulnerability follow the steps and information below.
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PoC:
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http://localhost:8080/%3E%22%3C%3C%3E%22%3C[PERSISTENT INJECTED SCRIPT CODE!]%3E/">
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PoC Source: Persistent Input Validation Vulnerability - Ordnername (Foldername)
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<body>
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<h2>?/</h2><br><a href="http://localhost:8080/Clip-Archiv/">Clip-Archiv/</a>
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<br><a href="http://localhost:8080/%3E%22%3C%3C%3E%22%3C[PERSISTENT INJECTED SCRIPT CODE!]%3E/">>"
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<<>"<[PERSISTENT INJECTED SCRIPT CODE!]">/</a>
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<br><a href="/Schnellstart.txt">Schnellstart.txt</a>
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Reference(s):
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http://localhost:8080/
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Solution - Fix & Patch:
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=======================
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1.1
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The file include web vulnerability can be patched by a secure encode and parse of the filename and the connected path value.
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1.2
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to fix the arbitrary file upload vulnerability it is required to restrict with a filter mechanism the filename extensions.
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Disallow multiple extensions and setup and own exception-handling to prevent arbitrary file uploads and restricted file upload bypass.
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1.3
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To patch the persistent input validation web vulnerability parse and encode the `Ordername` (foldername) input values
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in the import, add and rename function.
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Filter and encode also the vulnerable output section of the malicious injected test values.
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Security Risk:
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==============
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1.1
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The security risk of the local file include web vulnerability is estimated as critical with a cvss (common vulnerability scoring system) count of 8.4(+).
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1.2
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The security risk of the arbitrary file upload and upload restriction bypass vulnerability is estimated as high(+) with a cvss (common vulnerability scoring system) count of 7.8(+).
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1.3
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The security risk of the persistent input validation web vulnerability is estimated as medium(+) with a cvss (common vulnerability scoring system) count of 4.5(+).
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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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Section: www.vulnerability-lab.com/dev - forum.vulnerability-db.com - magazine.vulnerability-db.com
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Social: twitter.com/#!/vuln_lab - facebook.com/VulnerabilityLab - youtube.com/user/vulnerability0lab
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Feeds: vulnerability-lab.com/rss/rss.php - vulnerability-lab.com/rss/rss_upcoming.php - vulnerability-lab.com/rss/rss_news.php
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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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media, are reserved by Vulnerability-Lab Research Team or its suppliers. All pictures, texts, advisories, source code, videos and
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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 ? 2013 | 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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