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Apache Hardening
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== X-Content-Type-Options (MIME Sniffing) == EPrints repository software allows a wide range of different types of file to be uploaded but this can be restricted. However, MIME sniffing can be used to assist getting round this restriction, allowing files to be presented under a different MIME type so they can uploaded when otherwise would not be permitted. Such uploaded files may then be used to facilitate cross-site scripting (XSS) attacks. To prevent MIME sniffing the following line should be used: Header set X-Content-Type-Options "nosniff" Like with other Apache hardening configuration, this should be added to a file under the Apache configuration directory, so it is applied to all virtualhosts. [[Category:Howto]]
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