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  [SA23626] FirePass URL Restriction Bypass

From:SECUNIA <support_(at)_secunia.com>
Date:12 января 2007 г.
Subject:[SA23643] FirePass Cross-Site Scripting Vulnerabilities


TITLE:
FirePass Cross-Site Scripting Vulnerabilities

SECUNIA ADVISORY ID:
SA23643

VERIFY ADVISORY:
http://secunia.com/advisories/23643/

CRITICAL:
Less critical

IMPACT:
Cross Site Scripting

WHERE:
>From remote

OPERATING SYSTEM:
FirePass 6.x
http://secunia.com/product/13146/
FirePass 5.x
http://secunia.com/product/4695/

DESCRIPTION:
Michael Ligh and Greg Sinclair have reported a vulnerability in
FirePass, which can be exploited by malicious people to conduct
cross-site scripting attacks.

1) Input passed to the "xcho" parameter in my.logon.php3 is not
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.

Successful exploitation requires the parameter is ROT13 encoded and
the "crs" parameter is a valid corresponding CRC32 hash.

2) Some unspecified input is not 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 via double "eval()" functions or within "<FP_DO_NOT_TOUCH>"
tags.

SOLUTION:
Filter malicious characters and character sequences in a web proxy.

PROVIDED AND/OR DISCOVERED BY:
Michael Ligh and Greg Sinclair

ORIGINAL ADVISORY:
http://lists.grok.org.uk/pipermail/full-disclosure/2007-January/051651.html

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About:
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vulnerabilities.

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Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
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