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Zeroboard ".htaccess" File Upload Vulnerability
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Secunia Advisory:
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SA20592
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Release Date:
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2006-06-13
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Last Update:
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2006-06-20
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Popularity:
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7,358 views
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Critical:
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Highly critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | Zeroboard 4.x
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| CVE reference: | CVE-2006-3070
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Description:
Choi Min-sung has discovered a vulnerability in Zeroboard, which can be exploited by malicious people to compromise a vulnerable system.
The vulnerability is caused due to an error in restricting the uploading of files with the ".htaccess" filename. This can be exploited to upload a malicious ".htaccess" file that uses the "AddType" directive to cause the Apache web server to execute files with arbitrary extensions as PHP scripts.
Successful exploitation requires that the "mod_mime" module is installed and that the web directory has been configured with "AllowOverride All" or "AllowOverride FileInfo".
The vulnerability has been confirmed in version 4.1 pl8 (Traditional Chinese version). Other versions may also be affected.
Solution:
Edit the source code to prevent the uploading of ".htaccess" file.
Provided and/or discovered by:
Choi Min-sung
Changelog:
2006-06-16: Updated "Description" section.
2006-06-20: Added CVE reference.
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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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