eTicket Input Validation Hole in 'index.php' Permits Cross-Site Scripting Attacks
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SecurityTracker Alert ID: 1019278
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SecurityTracker URL: http://securitytracker.com/id?1019278
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CVE Reference: CVE-2008-0552
(Links to External Site)
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Updated: Feb 17 2008
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Original Entry Date: Jan 29 2008
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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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Version(s): 1.5.6-RC4
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Description: A vulnerability was reported in eTicket. A remote user can conduct cross-site scripting attacks.
The 'index.php' script does not properly filter HTML code from user-supplied input before displaying the 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 eTicket 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]/index.php/"><script>alert('XSS')</script>
The
vendor was notified on January 21, 2008.
Alessandro 'jekil' Tanasi reported this vulnerability.
The original advisory is available
at:
http://www.lonerunners.net/users/jekil/pub/hack-eticket/hack-eticket.txt
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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
eTicket 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: eticket.sourceforge.net/ (Links to External Site)
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Cause: Input validation error
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Underlying OS: Linux (Any), UNIX (Any), Windows (Any)
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Reported By: Alessandro Tanasi <alessandro@lonerunners.net>
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Message History:
None.
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Source Message Contents
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Date: Sun, 27 Jan 2008 14:07:35 +0100
From: Alessandro Tanasi <alessandro@lonerunners.net>
Subject: eTicket 'index.php' Cross Site Scripting Path Vulnerability
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________________________________________________________________________________
eTicket 'index.php' Cross Site Scripting Path Vulnerability
________________________________________________________________________________
Name: eTicket 'index.php' Cross Site Scripting Path
Vulnerability
Application: eTicket
Versions Affected: 1.5.6-RC4
Severity: Medium
Vendor: eTicket, http://sourceforge.net/projects/eticket
Bug: XSS Path vulnerability
Exploitation: Client side, remote
Author: Alessandro `jekil` Tanasi
email: alessandro@tanasi.it
web: http://www.tanasi.it
Date: 20/01/2008
Advisory:
http://www.lonerunners.net/users/jekil/pub/hack-eticket/hack-eticket.txt
________________________________________________________________________________
Table of contents:
I. Background
II. Description
III. Analysis
IV. Detection
V. Fix
VI. Vendor Response
VII. CVE Information
VIII. Disclousure timeline
IX. Credits
________________________________________________________________________________
I. BACKGROUND
eTicket is a PHP-based electronic (open source) support ticket system
based on osTicket, that can receive tickets via email (pop3/pipe) or a
web form. It also offers a ticket manager with many features. An ideal
helpdesk solution for any website.
II. DESCRIPTION
The application eTicket version 1.5.6-RC4 is prone to a Cross Site
Scripting Path vulnerability.
III. ANALYSIS
Attackers may exploit these issue through a web browser.
To exploit the cross-site scripting issues, an attacker must entice an
unsuspecting victim into visiting a malicious URI.
IV. DETECTION
Proof of concept:
http://example.com/index.php/"><script>alert('XSS')</script>
V. FIX
Properly validate user input.
VI. VENDOR RESPONSE
No vendor response at this time.
VII. CVE INFORMATION
No CVE at this time.
VIII. DISCLOSURE TIMELINE
21012008 Bug discovered
21012008 Vendor contacted
IX. CREDIT
Alessandro `jekil` Tanasi is credited with the discovery of this
vulnerability.
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