TorrentFlux Missing Input Validation in HTTP User-Agent Permits Cross-Site Scripting Attacks
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SecurityTracker Alert ID: 1017007 |
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SecurityTracker URL: http://securitytracker.com/id/1017007
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CVE Reference:
CVE-2006-5227
(Links to External Site)
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Updated: Jun 2 2008
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Original Entry Date: Oct 6 2006
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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): 2.1
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Description:
A vulnerability was reported in TorrentFlux. A remote user can conduct cross-site scripting attacks.
The 'admin.php' script does not properly filter HTML code from user-supplied input in the HTTP User-Agent field before displaying the input. A remote user can submit a specially crafted HTTP request to cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the TorrentFlux 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.
Steven Roddis discovered this vulnerability.
The original advisory is available at:
http://www.stevenroddis.com.au/2006/10/06/torrentflux-user-agent-xss-vulnerability/
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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 TorrentFlux 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.torrentflux.com/ (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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Message History:
None.
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Source Message Contents
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Date: Fri, 06 Oct 2006 01:30:33 +0000
Subject: TorrentFlux User-Agent XSS Vulnerability
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http://www.stevenroddis.com.au/2006/10/06/torrentflux-user-agent-xss-vulnerability/
Name: TorrentFlux User-Agent XSS Vulnerability
Published: 2006-10-06
Critical Level: Moderate
Type: Cross-Site Scripting
Where: Remote
Status: 0-Day
Software: Torrentflux 2.1
Discoverer: Steven Roddis (http://www.stevenroddis.com.au)
I gave the authors of this product a week (more than usual) just to contact me, they have failed to do so; so I am releasing this
vulnerability publicly!
/admin.php
Line: 325
$ip_info = $ip_resolved."
".$user_agent;
Useragent is not esacped.
Solution:
Edit source code:
/admin.php
Line: 325:
$ip_info = htmlentities($ip_resolved)."
".htmlentities($user_agent);
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