There might be several reasons why you’d like to have Web server running on your NAS, and there are many to choose from.

Still, installing, set up and configuration of Nginx can also be a hazzle unless you are an expert. Nginx is a ‘light-weight’, easy to use Web server compared to the versatility and complexity of Apache. You can also disallow access to eval() and otherĮxploitable php functions using hardened-php.Install Nginx Reverse Proxy in CS with Let's Encrypt Certificate Option such that it can only include files within your applicationĭirectory. In PHP you can set the open_basedir configuration never useĮval(), it is often a dirty shortcut and leads to remote codeĮxecution. In a file within the application's directory. Perform drive-by-download attacks on clients.Ī web application must never be able to execute code that is not An attacker will use this to introduce a backdoor or to Or folder within the web root or any of the application's executableįiles. The web application must never have write access to any file The rational is that an attacker is going to use your application against you and there for is limited by what the application can do. Regardless of platform there are two permission strategies you must adopt.

File uploads are also commonly stored in /tmp which in PHP can also turn a LFI vulnerability in to remote code execution. As an example, I took advantage of this property of /tmp when bypassing AppArmor to obtain remote codex execution in PHP-Nuke using a Local File Include vulnerability chained with a MySQL's into outfile. Almost always the /tmp has very open privileges, such that any process can write to them (chmod 777). The greatest concern is that an attacker can use a temporary directory to store executable code, which is a useful foothold when exploiting your system.

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