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Sony PSN Community - Mail Encoding Web Vulnerability
🗓️ 05 May 2013 00:00:00Reported by Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri ([email protected])Type 
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Document Title:
===============
Sony PSN Community - Mail Encoding Web Vulnerability
References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=748
Release Date:
=============
2013-05-05
Vulnerability Laboratory ID (VL-ID):
====================================
747
Common Vulnerability Scoring System:
====================================
3.1
Product & Service Introduction:
===============================
PlayStation Network, often abbreviated as PSN, is an online multiplayer gaming and digital media delivery service provided/run
by Sony Computer Entertainment for use with the PlayStation 3, PlayStation Portable, and PlayStation Vita video game consoles.
The PlayStation Network is the video game portion of the Sony Entertainment Network.
(Copy of the Homepage: http://en.wikipedia.org/wiki/PlayStation_Network)
Abstract Advisory Information:
==============================
The Vulnerability Laboratory Research Team discovered a filter and encoding web vulnerability in Sony`s official PSN Community Website Application.
Vulnerability Disclosure Timeline:
==================================
2012-11-01: Researcher Notification & Coordination
2012-11-02: Vendor Notification
2013-05-06: Public Disclosure
Discovery Status:
=================
Published
Affected Product(s):
====================
Sony
Product: PSN Community - Lithium Forums 2012 Q4
Exploitation Technique:
=======================
Remote
Severity Level:
===============
Low
Technical Details & Description:
================================
A persistent web vulnerability is detected in Sony`s official PSN Community Website Application.
The vulnerability allows remote attackers to send own malicious persistent script code as notification
message to hijack or phish psn application user accounts.
The vulnerability in the psn community (forum) is located in the outgoing mail parse of the
private message notification with the bound vulnerable username parameter. The script code will be
executed when the attacker injects script code as username. In the application and software itself
the web context is parsed but not in the outgoing notification mail of the community when a message
has been send or arrives.
Vulnerable Section(s):
[+] PSN Community - Forums [Private Messages]
Vulnerable Module(s):
[+] Forums [Private Messages] - Notification Mail (Active Message Notification)
Vulnerable Module(s):
[+] Username
Proof of Concept (PoC):
=======================
The persistent vulnerability can be exploited by remote attackers with low privileged community application
account with low or medium required user inter action. For demonstration or reproduce ...
Reproduce:
1. Register a username with a test iframe inside
2. Activate the checkbox with the private message notification mail
3. Send yourself a message with any random content
4. Open the notification mail and watch the username web context
5. Reproduce successful! The script code will be executed out of the notification mail of the private messages
<html>
<head>
<title>You have received a private message in the PSN Support Network!</title>
<link rel="important stylesheet" href="x.css">
</head>
<body>
<table border=0 cellspacing=0 cellpadding=0 width="100%" class="header-part1"><tr><td><b>Betreff: </b>You have received a private message in
the PSN Support Network!</td></tr><tr><td><b>Von: </b>Community Mailer <[email protected]></td></tr><tr><td><b>Datum: </b>01.11.2012
04:33</td></tr></table><table border=0 cellspacing=0 cellpadding=0 width="100%" class="header-part2"><tr>
<td><b>An: </b> >"<>"<iframe src=http://vuln-lab.com width=1000 height=700> <[email protected]></td></tr></table><br>
<html>
<head>
<title>
You have received a private message in the PSN Support Network!
</title>
</head>
<body>
Hello >"<>"<iframe src=http://vuln-lab.com width=1000 height=700>,
<p>
You have received a private message in the PSN Support Network.
</p>
<p>
Please click <a href="LINK">here</a> to access the community. You will need to login before you can read your message.
</p>
</body>
</html>
</body>
</html>
Security Risk:
==============
The security risk of the mail encoding (validation) vulnerability is estimated as medium.
Credits & Authors:
==================
Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri ([email protected])
Disclaimer & Information:
=========================
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05 May 2013 00:00Current