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Assessment Title
Rule Text
The Automation Controller NGINX web server must be protected from being stopped by a nonprivileged user.
Description
Discussion Text
An attacker has at least two reasons to stop an Automation Controller NGINX web server. The first is to cause a DoS, and the second is to put in place changes the attacker made to an Automation Controller NGINX web server configuration.
To prohibit an attacker from stopping the Automation Controller NGINX web server, the process ID (PID) of the web server and the utilities used to start/stop the web server must be protected from access by nonprivileged users. By knowing the PID and having access to the Automation Controller NGINX web server utilities, a nonprivileged user has a greater capability of stopping the server, whether intentionally or unintentionally.
To prohibit an attacker from stopping the Automation Controller NGINX web server, the process ID (PID) of the web server and the utilities used to start/stop the web server must be protected from access by nonprivileged users. By knowing the PID and having access to the Automation Controller NGINX web server utilities, a nonprivileged user has a greater capability of stopping the server, whether intentionally or unintentionally.
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