File Permissions

Many web and application servers rely on access control lists provided by the file system of the underlying platform. Even if almost all data is stored on backend servers, there are always files stored locally on the web and application server that should not be publicly accessible, particularly configuration files, default files, and scripts that are installed on most web and application servers. Only files that are specifically intended to be presented to web users should be marked as readable using the OS’s permissions mechanism, most directories should not be readable, and very few files, if any, should be marked executable. |