BugTraq
ifixit Bug Bounty #6 -(Profile) Persistent Vulnerability Feb 19 2016 11:36AM
Vulnerability Lab (research vulnerability-lab com)
Document Title:
===============
ifixit Bug Bounty #6 -(Profile) Persistent Vulnerability

References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1701

Video: http://www.vulnerability-lab.com/get_content.php?id=1702

Release Date:
=============
2016-02-18

Vulnerability Laboratory ID (VL-ID):
====================================
1701

Common Vulnerability Scoring System:
====================================
3.6

Product & Service Introduction:
===============================
The free repair guide for everything, written by everyone. iFixit is a private company in San Luis Obispo, California. Founded in 2003 while the
founders were attending Cal Poly, the company sells repair parts and publishes free wiki-like online repair guides for consumer electronics and gadgets on its web site.

(Copy of the Vendor Homepage: https://www.ifixit.com/ )

Abstract Advisory Information:
==============================
The Vulnerability Laboratory Core Research Team discovered an application-side input validation web vulnerability in the official ifixit online service web-application.

Vulnerability Disclosure Timeline:
==================================
2015-12-25: Researcher Notification & Coordination (Hadji Samir)
2015-12-26: Vendor Notification (iFixIt Security Team)
2016-01-06: Vendor Response/Feedback (iFixIt Security Team)
2016-02-05: Vendor Fix/Patch (iFixIt Developer Team)
2016-02-16: Security Acknowledgements (iFixIt Security Team)
2016-02-18: Public Disclosure (Vulnerability Laboratory)

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

Affected Product(s):
====================
iFixit
Product: iFixit PRO - Online Service (Web-Application) 2016 Q1

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

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

Technical Details & Description:
================================
A persistent input validation web vulnerability has been discovered in the official ifixit online service web-application.
The vulnerability allows remote attackers to inject own malicious script codes to the application-side of the affected modules context.

The vulnerability is located in the additional information input field of the `my profile > about me` web-application module. Remote attackers with low
privileged web-application user accounts are able to inject own script codes to the application-side of the vulnerable modules context. The attack vector
is located on the application-side and the request method to inject is POST.

The security risk of the filter bypass and persistent validation vulnerability is estimated as medium with a cvss (common vulnerability scoring system) count of 3.6.
Exploitation of the persistent input validation web vulnerability requires a low privileged web-application user account and low or medium user interaction.
Successful exploitation of the vulnerability results in session hijacking, persistent phishing, persistent external redirects to malicious source and persistent
manipulation of affected or connected application modules.

Request Method(s):
[+] POST

Vulnerable Module(s):
[+] my profile > about me

Vulnerable Input(s):
[+] additional information

Affected Module(s):
[+] my profile

Proof of Concept (PoC):
=======================
The vulnerability can be exploited by remote attackers with low privileged web-application user account and low user interaction.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.

Manual steps to reproduce the vulnerability ...
1. Open my profile > About me > Additional Information
2. Write in the Additional Information input field your own script code payload
3. Save the entry
4. revisit the my profile page
5. Successful reproduce of the vulnerability!

PoC:
[image|100|caption=<click here >|link=javascript:alert(document.cookie)]

Security Risk:
==============
The security risk of the persistent input validation web vulnerability in the my profile section of the application is estimated as medium. (CVSS 3.6)

Credits & Authors:
==================
Vulnerability Laboratory [Research Team] - Hadji Samir (samir (at) evolution-sec (dot) com [email concealed]) [http://www.vulnerability-lab.com/show.php?user=Hadji%20Samir]

Disclaimer & Information:
=========================
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