Date: Fri, 17 Apr 2020 09:34:21 +0200
From: Vulnerability Lab <research@...nerability-lab.com>
To: fulldisclosure@...lists.org
Subject: [FD] SMACom v1.2.0 - Insecure Session Validation Vulnerability

Document Title:
===============
SMACom v1.2.0 - Insecure Session Validation Vulnerability


References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=2211


Release Date:
=============
2020-04-16


Vulnerability Laboratory ID (VL-ID):
====================================
2211


Common Vulnerability Scoring System:
====================================
7.1


Vulnerability Class:
====================
Insufficient Session Validation


Current Estimated Price:
========================
500€ - 1.000€


Product & Service Introduction:
===============================
You do not need an USB cable anymore to transfer your photos and movies
to a PC! SMACom Wi-Fi photo Transfer is software
that transfers your photos and movies taken by a smart phone to your PC
without using an USB cable or a SD Card. You can also
transfer the data from a PC to a smart phone.

(Copy of the Homepage:
https://apps.apple.com/us/app/smacom-wi-fi-photo-transfer-send-image-movie-to-pc/id966802453
)


Abstract Advisory Information:
==============================
The vulnerability laboratory core research team discovered an insecure
session validation vulnerability in the SMACom v1.2.0 mobile ios
web-application.


Affected Product(s):
====================
MEDIA NAVI Inc.
Product: SMACom v1.2.0 - Apple iOS Mobile Web Application


Vulnerability Disclosure Timeline:
==================================
2020-04-16: Public Disclosure (Vulnerability Laboratory)


Discovery Status:
=================
Published


Exploitation Technique:
=======================
Remote


Severity Level:
===============
High


Authentication Type:
====================
Pre auth - no privileges


User Interaction:
=================
No User Interaction


Disclosure Type:
================
Independent Security Research


Technical Details & Description:
================================
An insecure session validation web vulnerability has been discovered in
the official SMACom v1.2.0 mobile ios web-application.
The vulnerability becomes visible through insecure transmitted session
credentials like passwords or keys.

The vulnerability is located in the session handling of the `password`
authentication parameter of the wifi photo transfer module.
Users can setup there pin for authentication to access the wifi user
interface. The web-server is not secured by ssl and transmits
the `password` for the wifi authentication in plain-text. Remote
attackers with network access privileges or on public wifis access
are able to read the authentication credentials and followup requests
with the password via man in the middle attack. The password
is transmitted as plain-text and is used in the visible session
parameter requested on each GET index attempt.

Next to that we want to mention as well that the authentication is not
protected against any bruteforce attempts which allowed us
to quickly crack any 4-6 digits pins from the default generator within
minutes.

Successful exploitation of the vulnerability results in mobile wifi
application file-system compromise and information leaks.

Request Method(s):
[+] GET

Vulnerable Function(s):
[+] Auth

Vulnerable Module(s):
[+] password


Proof of Concept (PoC):
=======================
The vulnerability can be exploited by remote attackers with network
access without privileged application user account.
For security demonstration or to reproduce the security vulnerability
follow the provided information and steps below to continue.


PoC: Captured Requests with Password
200 OK http://localhost:8080/Image?password=[SCORE HERE!]
200 OK
http://localhost:8080/?action=getcontent&contentid=3EDCAB95-2264-464C-B5E1-CCEC6D2BD5F4.PNG&kind=Image&password=[SCORE
HERE!]
200 OK
http://localhost:8080/?action=getcontent&contentid=8F784C0F-C1F8-4B36-930B-4C99B291E900.mp4&kind=Movie&password=[SCORE
HERE!]


Reference(s):
http://localhost:8080/Image?password=
http://localhost:8080/?action=getcontent&contentid=8F784C0F-C1F8-4B36-930B-4C99B291E900.mp4&kind=Movie&password=
http://localhost:8080/?action=getcontent&contentid=3EDCAB95-2264-464C-B5E1-CCEC6D2BD5F4.PNG&kind=Image&password=


Security Risk:
==============
The security risk of the insecure session validation web vulnerability
in the mobile ios web application is estimated as high.


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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