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Microsoft .NET Framework URL Path Validation Canonicalization Vulnerability
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Secunia Advisory:
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SA12749
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Release Date:
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2004-10-08
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Last Update:
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2005-11-21
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Popularity:
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17,085 views
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Critical:
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Moderately critical
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Impact:
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Security Bypass
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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: | ASP.NET 1.x
Microsoft .NET Framework 1.x
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
Toby Beaumont has reported a vulnerability in Microsoft .NET Framework, which can be exploited by malicious people to bypass certain security restrictions.
The vulnerability is caused due to a canonicalization error in the ASP.NET component's authentication schema when validating URL paths. This can be exploited to bypass forms based authentication or Windows authorization configurations by using a specially crafted URL.
Example:
http://[victim]/secure%5Cfile.apx
Successful exploitation can e.g. lead to exposure of sensitive information.
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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