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[SA19069] Thomson SpeedTouch 500 Series Cross-Site Scripting

From: Secunia Security Advisories (sec-advsecunia.com)
Date: Tue Feb 28 2006 - 07:47:05 CST

TITLE:
Thomson SpeedTouch 500 Series Cross-Site Scripting

SECUNIA ADVISORY ID:
SA19069

VERIFY ADVISORY:
http://secunia.com/advisories/19069/

CRITICAL:
Less critical

IMPACT:
Cross Site Scripting

WHERE:
From remote

OPERATING SYSTEM:
Thomson SpeedTouch 500 Series
http://secunia.com/product/8440/

DESCRIPTION:
Preben Nyløkken has reported a vulnerability in Thomson SpeedTouch
500 Series, which can be exploited by malicious people to conduct
cross-site scripting attacks.

Input passed to the "name" parameter in the LocalNetwork page isn't
properly sanitised before being returned to the user. This can be
exploited to execute arbitrary HTML and script code in a user's
browser session in context of an affected site.

Example:
http://[host]/cgi/b/intfs/_intf_/ov/?ce=1&be=0&l0=3&l1=1&name=[code]

The vulnerability has been reported in firmware version 5.3.2.6.0.
Other versions may also be affected

Note: It is reportedly possible for the administrative user to create
new users with Javascript in their user names, which cannot be
deleted.

SOLUTION:
Filter malicious characters and character sequences in a proxy or
firewall with URL filtering capabilities.

PROVIDED AND/OR DISCOVERED BY:
Preben Nyløkken

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