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Microsoft ISA Server 2000 Error Page Cross Site Scripting
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Secunia Advisory:
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SA8812
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Release Date:
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2003-05-20
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Last Update:
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2003-07-16
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Popularity:
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8,832 views
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Critical:
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Less critical
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Impact:
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Cross Site Scripting
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Microsoft ISA Server 2000
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Secunia CVSS-2 Score:
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Available in Secunia business solutions 
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
A vulnerability has been identified in Microsoft ISA Server 2000 allowing malicious HTML documents to conduct Cross Site Scripting against arbitrary sites.
The problem is that the data supplied in the "VIA" header is returned in an error page without being sanitised, when ISA Server fails to connect to the remote host.
By creating a malicious document, which uses the ActiveX Object "Microsoft.XMLHTTP" to conduct a specially crafted request for any other website to a closed port, it is possible to read cookies and more. This is possible to do because JavaScript and other client side scripting injected in the "VIA" header will be executed in the client as if it originated from the requested site.
An exploit has been released.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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