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MIMEsweeper for Web Cross-Site Scripting and Denial of Service
Secunia Advisory: SA20998
Release Date: 2006-07-10
Last Update: 2006-07-13
Popularity: 6,000 views

Critical:
Moderately critical
Impact: Cross Site Scripting
DoS
Where: From remote
Solution Status: Vendor Patch

Software:MIMEsweeper for Web 5.x

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CVE reference:CVE-2006-3522
CVE-2006-3523


Description:
Two vulnerabilities have been reported in MIMEsweeper for Web, which can be exploited by malicious people to cause a DoS (Denial of Service) and conduct cross-site scripting attacks.

1) Input passed via the URL when attempting to access blocked web sites (as defined by the MIMEsweeper policy) isn't properly sanitised before being returned to the user via an error page. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an arbitrary blocked web site.

Example:
http://[blocked web site]/[code]

2) An error in the scanning functionality can be exploited to crash the Web Policy Engine service via a specially crafted, encrypted RAR archive.

Solution:
Update to version 5.1.15.
http://www.clearswift.com/support/msw/patch_MswWeb.aspx

Provided and/or discovered by:
1) Erez Metula
2) Reported by the vendor.

Changelog:
2006-07-13: Added CVE references.

Original Advisory:
Clearswift:
http://download.mimesweeper.com/www/T...Documentation/WebReadMeHotfix5115.htm


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