Employing headers to enhance the security of WebDAV in the browser
After a vulnerability scan on our current WebDAV server the lack of employing security-related headers was detected. Apache provides several security-related headers that can enhance the security of a web server. Here are some of the most commonly used security headers in Apache:
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X-Frame-Options: The X-Frame-Options HTTP response header can be used to indicate whether or not a browser should be allowed to render a page in a , , or . Sites can use this to avoid click-jacking attacks, by ensuring that their content is not embedded into other sites.
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X-XSS-Protection: This header is used to enable the browser's XSS (Cross-Site Scripting) protection. The possible values for this header are 0, 1, and 1; mode=block.
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X-Content-Type-Options: This header is used to prevent MIME-type sniffing attacks by forcing the browser to honor the declared content type of a resource. The value of this header is nosniff.
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Content-Security-Policy: This header is used to enforce a Content Security Policy (CSP) which helps mitigate various attacks such as Cross-Site Scripting (XSS) and data injection attacks. It allows you to whitelist the sources of content that are allowed to be loaded and executed on your website.
These headers can be configured in the Apache configuration files or using an Apache module such as mod_headers. It is required to research on available security-related headers and employ relevant ones for our web server. CC @paul.skopnik