On a CloudLinux server, a security scan mentions disabling several PHP functions.

Symptoms

The result of a security scan shows several PHP functions that are recommended to be disabled for /opt/alt/php-internal/etc/php.ini:

Description 

The /opt/alt/php-internal/etc/php.ini file is a file used internally to CloudLinux:

# rpm -qf /opt/alt/php-internal/etc/php.ini
alt-php-internal-common-7.4.16-6.el7.x86_64

Workaround

The security scan for that particular file may be ignored. To address the concern separately, utilize CageFS. Per CloudLinux, "The secure environment is already established by CageFS which limits what processes can see or do to only safe actions." 

You can read more about this on the CloudLinux blog post here:

https://www.cloudlinux.com/blog/entry/php-selector-and-restricting-php-functions