SnapStream PVS LITE Input Validation Flaw Permits Cross-Site Scripting Attacks
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SecurityTracker Alert ID: 1008646
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SecurityTracker URL: http://securitytracker.com/id?1008646
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CVE Reference: CVE-2004-0046
(Links to External Site)
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Updated: Jul 6 2008
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Original Entry Date: Jan 8 2004
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Impact: Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
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Exploit Included: Yes
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Description: An input validation vulnerability was reported in SnapStream PVS LITE. A remote user can conduct cross-site scripting attacks.
Rafel Ivgi (The-Insider) reported that the server does not properly filter HTML code from user-supplied input. A remote user can
create a specially crafted URL that, when loaded by a target user, will cause arbitrary scripting code to be executed by the target
user's browser. The code will originate from the site running the SnapStream PVS software and will run in the security context of
that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated
with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as
the target user.
A demonstration exploit URL is provided:
http://[target]/?"><script>alert('XSS')</script>
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Impact: A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the
SnapStream PVS software, access data recently submitted by the target user via web form to the site, or take actions on the site
acting as the target user.
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Solution: No solution was available at the time of this entry.
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Vendor URL: www.snapstream.com/ (Links to External Site)
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Cause: Input validation error
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Underlying OS: Windows (Any)
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Reported By: "Rafel Ivgi" <theinsider@012.net.il>
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Message History:
None.
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Source Message Contents
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Date: Wed, 7 Jan 2004 01:02:55 +0200
From: "Rafel Ivgi" <theinsider@012.net.il>
Subject: SnapStream PVS LITE Cross Site Scripting Vulnerabillity
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#######################################################################
Application: SnapStream PVS
Vendor : http://www.snapstream.com
Versions: LITE
Platforms: Windows/Unix
Bug: Cross Site Scripting Vulnerabillity
Risk: Low
Exploitation: Remote with browser
Date: 6 Jan 2004
Author: Rafel Ivgi, The-Insider
e-mail: the_insider@mail.com
web: http://theinsider.deep-ice.com
#######################################################################
1) Introduction
2) Bug
3) The Code
#######################################################################
===============
1) Introduction
===============
SnapStream PVS is a Personal Video Station software. It allows the user to
remotely
schedule recordings and playing of Tv shows using video tapes and cable TV.
#######################################################################
======
2) Bug
======
When the webserver hosting SnapStream PVS LITE recieves a
'GET /?<script>alert('XSS')</script>' its ignores it, the data gets filtered
as it should.
But when it recieves a 'GET /?"><script>alert('XSS')</script>' the filters
are bypassed
and XSS appears and the server allows an attacker to inject & execute
scripts.
#######################################################################
===========
3) The Code
===========
http://<host>/?"><script>alert('XSS')</script>
#######################################################################
---
Rafel Ivgi, The-Insider
http://theinsider.deep-ice.com
"Things that are unlikeable, are NOT impossible."
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